The technology development background，application status and sustainable supply of raw materials problems about aviation biofuel were discussed. It was pointed out that aviation biofuels will become a fundamental way for China's aviation industry to realize greenhouse gas emission reduction targets；a proposal on China’s aviation biofuel development was put forward. The conclusion showed that China should further strengthen the technology development，reduce production cost of aviation biofuel through technical R&D，expand raw materials of aviation biofuel，and actively promote the industrialization production and application of aviation biofuel，so as to create conditions for the sustainable development and carbon emission reduction of aviation industry.

This review provides a brief summary of recent research progress in currently available electrolytes，including aqueous electrolytes，organic electrolytes，ionic liquids，solid electrolytes and redox electrolytes for supercapacitor，as well as corresponding important theories and technologies. The performance comparison among aqueous electrolytes，organic electrolytes and ionic liquids as supercapacitor electrolyte was conducted，and the capacitor self-discharge caused by shuttle effect of impure ion was also discussed. It indicates that the investigation on low-viscosity，high-conductivity and high electrochemical stability ionic liquid electrolyte is very important fundamental research and such electrolyte is expected to be the substitute for organic electrolytes. Additionally，the combination and optimization of ionic liquid and organic solvents mixture for supercapacitor electrolyte also represent an application trend in the future.

Hydrogen peroxide (H2O2) is an important reagent which has been widely used in the industrial fields of electronic，pharmaceutical，papermaking，food，wastewater treatment and so on. Direct catalytic synthesis of hydrogen peroxide from hydrogen and oxygen is an ideal atomic economic reaction route；however，its substantial application is confronted with serious technique challenges. Focusing on the development of direct catalytic synthesis process of hydrogen peroxide from hydrogen and oxygen, this article reviewed the researches on active catalytic components including Pd and bimetallic Pd-Au，solid acid carriers and new kinds of reactors including membrane reactors and micro-channel reactors in recent years. In the view of process integration and intensification. It is necessary to explore the integration between the direct synthesis route hydrogen peroxide with other specific chemical process，so as to avoid redundant concentration，transportation and dilution steps and promote the development of safe and green processes to produce hydrogen peroxide.

Salt-lake brine is an important source of boron，which contains abundant boric acid. Solvent extraction is a useful and potential industrialized technology for boron recovery from brine. Compared to traditional techniques，solvent extraction can provide a simple，robust and high productive process. The key for solvent extraction is the choice of extractant. This paper mainly reviewed structures of boron-selective extractants and corresponding extraction efficiency reported in recent years. Boron extractants were catalogued into aliphatic alcohol，aromatic alcohol and mixed alcohol according to their structures and mechanisms of boron recovery. Among aliphatic alcohols，the application of an aliphatic monobasic alcohol，i.e. 2-ethylhexanol，and diol，i.e. 2- ethyl-1,3-hexanediol were extensively discussed. They have been proven effective in boron recovery from aqueous solutions. As well，a large number of β-diols with new structure were introduced. This review can be used as a reference for the design of novel boron extractant as well as practical extraction process.

Biomass is a very important renewable energy．Biomass gasification technology has been widely applied over the world．This paper reviews the structure of fixed bed，bubbling fluidized bed，circulating fluidized bed，internal circulating fluidized bed，dual circulating fluidized bed applied in biomass gasification．Fixed bed is easy to install，but with more tar generated in operation．The efficiency of circulating fluidized bed combustion is high，but its feedback unit is difficult to control．The internal circulating fluidized bed can provide high hydrogen content with less coking ，and no special consideration needed on feedback flow．Dual fluidized bed structure is complicate，but with less tar．Comparing fixed beds and fluidized-beds，it can be concluded that the installation of fixed beds are simple and it is suitable for rural areas，and that fluidized bed should be constantly improved，more suitable for industrial production.

High temperature heat storage technology using metal hydrides is a promising heat storage method，which can be applied in solar thermal power plants，industrial waste heat recovery and the peak load regulation of power system. The classification of high temperature heat storage systems using metal hydrides is introduced. The research status and developments on experimental prototype studies，high temperature metal hydride materials，as well as corresponding theoretical and numerical studies are summarized in detail. Limitations in the existing investigations on the high temperature heat storage technology using metal hydrides are also analyzed and summarized，and the prospect of this technology is given.

Compared with experimental investigation，numerical simulation has overwhelming advantages in its flexibility and economical efficiency，therefore it becomes an important method to obtain the microscopic mechanisms and the macroscopic effects of fine particle agglomeration subjected to an acoustic field. The relevant study progress and present status were reviewed. The orthokinetic，hydrodynamic and acoustic streaming mechanisms of acoustic agglomeration were introduced，and the numerical simulation methods for acoustic agglomeration such as sectional algorithm，method of moments，and Monte Carlo method，were also presented. It is proposed that based on the coupling of acoustic agglomeration mechanisms，visualization simulation using Multi-Monte Carlo method combined with visual programming technique can be an important development direction for the simulation of acoustic agglomeration.

Gibbs ensemble Monte Carlo (GEMC) is used to predict fluid phase equilibria. The basis of GEMC method is first introduced. Force fields are important to GEMC. Different kinds of force fields are reviewed. The effectiveness of GEMC prediction on fluid phase equilibria is discussed. And then，examples in which GEMC is used to provide pure component properties and phase behavior of mixtures are given. In addition，the developments of GEMC in China are specially addressed；the current limitations and possible improvements of Gibbs ensemble Monte Carlo methods are also discussed.

The study on multipass heat exchanger networks (HENs) synthesis is summarized. The methods of multipass heat exchangers and multipass HENs synthesis are discussed，which are mostly derived from the correction factor for log mean temperature difference (LMTD) as constrains. The analyzing and solving multipass HENs can be conducted from the perspective of thermodynamic principles. The method of multipass HENs synthesis based on pinch technology is proposed.

As a novel airlift loop reactor，Airlift Reversible Loop Reactor (ARLR) has been proved effectively increasing the gas holdup and mass transfer coefficient in fermentation experiments. By using computational fluid dynamics (CFD) simulation and experimental validation，the mass transfer characteristics of ARLR were studied. Through CFD simulation and response surface analysis，the structural parameters such as H/D ratio，draft tube diameter and draft tube height were optimized. Compared with traditional ALR，by using this novel reactor，the gas holdup increases 32% at least，and the oxygen mass transfer coefficient also increases more than 11%，under the same ventilation conditions. The results indicated that the ARLR has a very broad prospect in high aerobic microorganism cultivation.

The flow fields of the flocculators with different baffle in the shape of vertical，perforated，arc and sine were studied respectively by LDV. The velocity and turbulent kinetic energy along with power number were compared in different types of baffled reactor. It shows that the flow fields in different baffled flocculators with the same type of pitched blade turbine (PBT) were generally axial circular flow，while the design of baffle has some degree impact on the flow filed in the circulation zone near the baffles. In different baffled flocculators the mean axial velocities have little difference，while the mean radial，tangential velocities，turbulent kinetic energy and power number have larger variation. In the flow field near the baffles，the average radial velocity increased by 0.043Utip，0.025 Utip and 0.058 Utip，the average tangential velocity increased by 0.023 Utip，0.019 Utip and 0.038 Utip，and the turbulence kinetic energy increased by 0.016 Utip2，0.015 Utip2 and 0.021 Utip2，for perforated，arc and sine baffles respectively，compared to that of the vertical baffles. Furthermore，the energy consumption was reduced by 0.98%，1.33% and 5.78%，respectively. Reasonable structure of baffles can effectively resolve the problem of non-homogeneous mixture，intensify the flow field of flocculation reaction，improve flocculating effect，reduce energy consumption，and enhance economic benefit.

In this paper，a new-style plate heat pipe radiator is proposed，together with an experiment system，to investigate its thermal performance under different quantity，position and airflow rate. The experimental results indicated that this plate heat pipe radiator has wonderful heat dissipating capacity and small overall thermal resistance. With the increase of heat sources number，overall thermal resistance was reduced，the maximum heat transport capacity and heat dissipation capacity were improved significantly. When the heat source temperature is below 65 ℃，the heat transferred can still reach nearly 400 W，which is very suitable for the heat dissipation of multi-heat spots electronic components with high heat flux.

The hysteresis phenomenon of droplet moving on surfaces has not yet been fully explained theoretically，and the analysis and calculation of the hysteretic force of a droplet is one of the key points to quantitatively describe the hysteresis phenomenon. By means of high speed camera，the hysteretic force of a droplet on hydrophilic and hydrophobic surface was studied and further verified by experimental data. The results indicate that the hysteretic forces of droplets moving on hydrophilic and hydrophobic surfaces are corresponding to spreading and adhesion respectively. The hysteretic force can explain hysteresis phenomenon and provides a theory basis for furthering research on contact angle hysteresis (CAH).

In this paper，three methods for producing aromatics from coal have been reviewed. It can be obtained from coal by direct liquefaction or the separation of the aromatic compounds from coal liquefaction products in which coal is extracted by several kinds of solvents first，and then aromatic compounds are obtained through product classified processing. The high value aromatic compounds can be obtained by the oxidation of coal. And the difficulties in the preparation of aromatics from the coal，are analyzed，regarding product separation and environmental pollution. With the consideration of separation processes and catalysts，how to implement the coal-directional conversion should be focused on in the future.

The conversion of hemicelluloses into energy and high-value chemicals by nonenzymatically catalyzing technology has the technical and economic feasibility. This article briefly introduces the recent developments in the research of the nonenzymatically catalyzing technology including hydrothermal conversion，microwave-assisted conversion，ionic liquid-catalyzed conversion and composite catalyst-catalyzed conversion for conversing hemicelluloses into bioenergy such as ethanol，butanediol and high-value chemicals such as furfural，acid，furan and so on. The nonenzymatically catalyzing technology overcomes the disadvantages of traditional enzymatically catalyzing technology such as the harsh reaction condition and the high enzyme cost，but some problems still exist，such as high requirement on equipment，no clear mechanism of reaction and low selectivity. Therefore，an in-depth investigation into the reaction mechanism and the improvement on reaction conditions needs to be considered in the future research.

The production of light olefins from syngas is one of the hot topics to prepare important organic chemicals from non-oil resources. Technical progress in the process，including research on catalysts，reactors and process，was summarized. It is believed that highly active and selective catalysts are key to break the limit of ASF product distribution. Meanwhile，new reactors and novel processes development also contribute to the high yield of light olefins，CO2 emission reduction and acceleration of process commercialization via the combination of the process with other existing technologies. Compared with conventional steam cracking and methanol to olefins process，the direct production of lower olefins from syngas is economically competitive.

A series of Ba-doped nano-magnesia were prepared by sol-gel method with the assistance of polyethylene glycol(PEG)，sodium polyacrylate(PAAS) and polyvinyl alcohol(PVA)，and the corresponding Ru catalysts for ammonia synthesis were then prepared by the impregnation method. The catalysts were characterized by scanning electronic microscopy，X-ray diffraction，nitrogen physical adsorption，X-ray energy dispersive spectrometer. The results showed that the surfactants not only improved the texture and surface physical and chemical properties of the Ba-MgO support，but also enhanced the dispersion of Ba in the support. When the dosage of PAAS was 5%，the Ru/Ba-MgO catalyst exhibited the highest catalytic activity for ammonia synthesis with a reaction rate of 65.9 mmol/(g?h) at 425 ℃，10 MPa，and 10000 h―1.

Mo1V0.25Te0.13Nb0.12Ox catalyst was prepared，and the effect of calcination conditions (calcination mode，calcination atmosphere and calcination temperature) of the catalysts on propane oxidation to acrylic acid reaction was studied. Results suggest that two-period intermittent calcination is superior to continuous calcination as the resulting catalyst has a better catalytic effect. Suitable pre-calcination temperature is conducive to the removal of volatile substances and the chemical combined water，and it is also conducive to avoid the transition of active component into unfavorable phase by oxidation. Calcination in inert atmosphere is better than that in a weak oxidizing atmosphere as the catalyst has a better catalytic effect. The propane conversion and acrylic acid yield increase with the calcination temperature at first but decrease while the temperature increases further，which have maximum values at 600 ℃。

In this paper，a new preparation method of a continuous fixed-bed catalytic system for 6,6'-dihydroxy-3,3,3',3'-tetramethyl-1,1'-spirobiindane was reported with bisphenol A crystalline residue solution as raw material，and sulfonated polyvinyl generation of styrene - divinylbenzene strong acid cation exchange resin as catalyst. Stainless steel reactor with ?30 mm was filled by 50 mL (22g， E = 1.8 mmol H+/mL) dry resin. In the condition of T =150 ℃，WHVS = 0.48h－1，it had reacted continuously for 1000 h，the concentration of 6,6 '-dihydroxy-3,3,3',3'-tetramethyl-1,1'-spirobiindane in reaction solution was stabilized at 43.5%，and the exchange capacity of catalyst remained 3.8 mmol/g. Product was purified by recrystallization，and the melting point was 215—217 ℃，purity was≥ 99.98% (HPLC). By HPLC，IR，NMR and other methods for the analysis of product content and structure，reaction conditions were optimized with a statistical software STATISTIC. The results for the improvement on the production process of bisphenol A residue treatment suggest a brand new method for bisphenol monomer production.

As a polymer precursor of SiC ceramics，liquid hyperbranched polycarbosilane has drawn a great attention for its excellent fluidity，self-cross-linking，high ceramic yield and near-stoichiometric pyrolysis product. According to the characteristics of liquid hyperbranched polycarbosilane，the preparation methods are reviewed，including the ring-opening polymerization，Grignard coupling method，Wurtz coupling method and hydrosilysition reaction. In addition，the research progress of its application in silicon carbide based ceramic composites，silicon carbide fiber and silicon carbide membrane is summarized. Finally，the prospect of further research，large-scale synthesis and modification of liquid hyperbranched polycarbosilane，is also addressed.

Phosphorus-containing flame retardant，which exhibits the characteristics of low smoke，non-toxic and good flame retardancy，is a significant type of halogen-free flame retardants. In this paper，we described the mechanism of phosphorus-containing flame retardant，and introduced the different modification methods to incorporate phosphorus into the main chain or side chain of polymer，especially in the application of polyurethane，epoxy and acrylic resin. In addition，we reviewed the development of reactive phosphorus-containing flame retardant in recent years. Finally，the suggestions for further study on the synergistic mechanism of flame retardants as well as the development of the waterborne and UV-curable flame retardant polymer were proposed.

In this paper，the recent progress in the preparation of Cu nanowires is reviewed，including preparative strategies and mechanisms of vapor-deposition methods，template-assisted methods，reverse micellar methods，electric driven self-assembly methods and liquid-phase reducing methods . Detailed introductions to the potential applications in catalysis，photology，electronics and dynamics of Cu nanowires are presented. The potential and promising trends of Cu nanowires in photocatalysis，microelectronic devices and sensor technology are also proposed.

The technology research on nano-barium ferrite preparation progress was reviewed. Nano-barium had broad application prospect for its excellent ferrite magnetic and microwave absorbing properties. In recent years many nano-barium ferrite preparation process，sol-gel method were proposed for the preparation of nano-barium ferrite powder and film because of its unique superiority in the control of product composition and uniformity，but some new technology mechanism needs further study. The analysis shows that the nano-barium ferrite preparation needs to be further improved. The nano-barium ferrite and conductive polymer composites，nano-barium ferrite doping，nano barium ferrite doped and conductive polymer composites shall be further investigated in future.

Several types of OMMT and polymer were selected，with different mixing conditions and procedures，via mechanical blending or extrusion. Several polymer/OMMT nanocomposites with different substructural morphology were successfully prepared with different space distances. The results of XRD and TEM showed that the OMMT with larger space distance would form exfoliation nanocomposits；and then the schemes was used to explain the mechanism. The polyethylene (such as LDPE，HDPE，LLDPE) composited with the same OMMT indicated the influence of different molecular chain structure. Different morphologies of PP/OMMT and EPDM/OMMT nanocomposites were discussed to reveal the structure influence of shear force.

CuO nanowires with a diameter of 50—80 nm and a length of several micrometers were prepared from a microwire with a diameter of 30 ?m by integrating electroplating and thermal oxidation. The effects of the oxidation time and temperature on CuO nanowire growth were investigated. The results indicate that the length of the nanowires increases when oxidation time increases and better uniformity can be obtained after 4 h oxidation. It also indicates that aligned and vertical CuO nanowires can grow well under 450—500 ℃. When oxidation was conducted under 500 ℃ for more than 4 h，and cooled down naturally to room temperature，large amount of long and uniform nanowires were formed.

Hydroxyethylcellulose-g-poly(4-vinylpyridine) (HEC-g-P4VP) was synthesized by using ceric ammonium nitrate (CAN) initiator in aqueous nitric acid solution. The products were illustrated by FTIR and 1H NMR. Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) were used to study the micellization of copolymer in water. The pH-induced micellization of HEC-g-P4VP in water has been found. It showed that the morphology of micelles showed different solid and sphere structures at different pHs. Surface tension measurements were also studied by a set of drop volume techniques. With the grafting rate increasing，the surface tension tended to decrease.

The changes of the properties and microstructure of carbon fibers made in our laboratory were studied in strong oxidation agents，including concentrated nitric acid and the mixtures of concentrated sulfuric acid and concentrated nitric acid. The results showed that when carbon fibers were oxidized by concentrated nitric acid，tensile strength of carbon fibers increased more than that of the untreated sample，meanwhile modulus had little change. When the carbon fibers are oxidized by the mixture，the strength and the modulus of carbon fibers decreased with the increase of oxidation time，and decreased rapidly with the increase of volume fraction of concentrated sulfuric acid. Results of XRD suggested that oxidation of concentrated nitric acid affect the microstructure size in the direction paralleled to fiber axis，and oxidation of concentrated sulfuric acid had effect on that in the lamellar stacking direction of carbon fibers.

Bioactive substances in algae can be applied in medicine，functional foods，food additives，ecological protection，animal feed and other fields. In this article，different bioactive substances in seaweed were introduced，including polysaccharides，proteins，terpenes，sterols，polyphenols，cyclic polysulfide，large ring lactone，etc.，and their application was reviewed in the aspect of drugs，food，industry and agriculture. There is a great potential in bioactive substances on medical and industrial applications. Research on the extraction of bioactive substances in algae is very importance in the future. Its biological structure，biological activity，and mechanism need to be further investigated.

In this project，O-methyl free N,N,N-trimethyl chitosan (TMC) was synthesized in two steps，then N,N,N-trimethyl O-octyl chitosan(TMOC) was prepared with phase transfer catalysts. The obtained chitosan derivatives were characterized by FTIR，1H NMR，EA and TG methods，respectively. The results reveal that the antibacterial activity of TMOC is stronger under pH 5.5 than that under pH 7.2；TMOC exhibits stronger antibacterial activity against S. aureus than against E. coli. Without compromise on the water-solubility，O-alkylation can improve the antibacterial activity of TMC. The antibacterial activity of TMOC increased as the degree of O-alkylation increased. The results can provide a reference for the modification and the preparation of chitosan antibacterial agents.

Inkjet printing electronics technology has attracted tremendous interests for its high efficiency and environment-friendliness and also its potential applications in the electronic and microelectronic industry. This paper is to summarize the recent development of the preparation，performance，control of ink droplets，coating treatment and applications of ink-jet conductive inks. It indicates that the research on inkjet metal nanoparticle inks is one key to develop inkjet printing electronics technology. The drawbacks of present inkjet metal nanoparticle inks are pointed out and the prospect in the technology development was addressed.

With the requirement for high quality printing，the market demand for high quality color toner will also increase. The preparation methods of the laser color toner were reviewed in this article，and emulsion polymerization and suspension polymerization methods and their research progress for preparing color toner were highlighted，the future technology and methods for toner producing were prospected. The authors believed that the color toner produced by emulsion polymerization can provide higher resolution，higher color saturation and suitable consolidation property；it will replace those produced by suspension polymerization and become a lead in the future market of color toner.

Investigation shows that aluminum salts and their combinations with 1,3-dialkylimmidazolium salts are efficient catalysts for the conversion of sucrose to methyl levulinate in methanol. Especially，the combinations of aluminum salts with 1,3-dimethylimidazolium hydrogen sulfate have high activity for the methyl levulinate synthesis from sucrose and high methyl levulinate yield was obtained. The investigation examined the co-catalysis of aluminum salts and 1,3-dimethylimidazolium hydrogen sulfate. The effects of reaction time，reaction temperature，and catalyst loading on methyl levulinate yield were studied. The reaction conditions were optimized. It was found that good yield (70% in mol) of methyl levulinate could be obtained at 140℃ by reaction 3 h with 1,3-dimethylimidazolium hydrogen sulfate and Al(CH3SO3)3 loading of 0.500 g and 0.500 g，respectively.

In the biological treatment of wastewater，lots of toxic organic pollutants were transferred to the activated sludge and then gave negative effects on the land application of sludge. In this paper，seven kinds of remarkable typical emerging organic contaminants were chosen based on their effects on ecology and human health and the pollution situation of these contaminants in sludge was reviewed，the possible effects on land application of sludge were analyzed. Then，the related research orient was forecasted，indicating that it is necessary to analyze and determine the effects and toxicity of organic contaminants on the ecology，especially the emerging organic contaminants in sludge，and further explore the effective method for the biodegradation of these organic compounds in order to make the land application of sludge safer.

This review starts with a brief introduction of the background and status of polysilicon production，followed by the plight in polisilicon industry and the general treatment method of silicon tetrachloride. The composition of silicon tetrachloride waste and difficulties in treatment are discussed. Methods for the treatment of silicon tetrachloride waste in polysilicon production，including hydrolysis，filter，drying，combustion etc，are introduced. Comprehensive classification and discussion of all the methods are conducted. The future application is also discussed.

Anaerobic ammonium oxidation (Anammox)，a new biological nitrogen removal process in wastewater treatment，is very suitable for the treatment of wastewater containing organic matters. This paper introduces the characteristics of anaerobic ammonium oxidation process，especially the inhibitive and stimulative mechanisms of organic matters to the bacteria. Two mechanisms are attributed to organic matters induced inhibition，one is heterotrophic denitrifying bacteria promoted by organic matters can compete with anammox bacteria for substrates；the other one is that alcohols，antibiotics and other toxic organics in wastewater leads to toxic inhibition to anaerobic ammonium oxidation bacteria. The stimulation of organic matters to anaerobic ammonium oxidation bacteria also can be explained in two aspects：one is that certain organic matters can be used by anaerobic ammonium oxidation bacteria as energy source，and thus enhance their metabolism；the other is anaerobic ammonium oxidation bacteria and denitrifying bacteria can form symbiote with proper C：N ratio. The pretreatment of toxic organic wastewater，acclimation of anaerobic ammonium oxidation sludge，sequential biocatalyst addition are feasible solutions to the problem.

Carbon dioxide absorption and desorption are investigated at ambient pressure in two aqueous amine solutions，20% monoethyamino (MEA) + 2% N-methyldiethanolamine (MDEA) and 20% 2-(aminoethylamino) ethanol (AEE) + 2% N-methyldiethanolamine (MDEA). Both solutions were studied using static and the dynamic methods. Results showed that the capacity of CO2 absorption and desorption in 20%AEE+2%MDEA is higher than that in 20%MEA+2%MDEA at the same absorption temperature with little deterioration. In addition，20%AEE+2%MDEA has lower energy consumption by 10% than 20%MEA+2%MDEA to achieve the same desorption result. AEE shows a great potential of industrial application in the future.

For the silica scale and calcium carbonate scale emerging in ASP flooding of oilfield，a quadripolymer scale inhibitor was prepared by maleic anhydride (MA)，sodium hypophosphite(NaH2PO2)，acrylamide(AM) and polyethylene glycol (PEG) 4000. The polymerization was initiated by the initiator with persulfate ammonium and sodium hydrogensulfite. The best condition was determined for the quadripolymer synthesis and its properties had been evaluated. The results show that the scale inhibit rate of silica scale is 67.2% at 60℃；the scale inhibit rate of CaCO3 is 96.3% at 70℃，when the scale inhibit dosage is 100mg/L. It is pointed out that the four kinds of functional groups in the quadripolymer scale inhibitor mechanisms of synergy are the lattice distortion and the electrostatic repulsion. Because of the high price of polyethylene glycol, looking for inexpensive biodegradable containing ether bond compounds are the main research directions of the future experiments.

The cheap oil-absorbing material is needed to deal with marine oil spill，and bioadsorbent with high oil-absorbing property can be prepared by modification of wheat straw. The effects of temperature，time，solvent，and catalyst on the modification of the straw were discussed. With AA as a reactant，DMF as a solvent，DMAP as a catalyst，reaction time of 2h and temperature of 100 ℃，the oil absorbency of the modified straw reached 13.9 g/g，54.4% more than that of crude straw. The chemical structures of crude and modified straw samples were analyzed by FT-IR. The study provides a foundation for further industrialization.

In order to determine the emulsifying ability of an emulsifier used in oil field more consistently with the actual working environment，this experiment result can improve the current national standards. For spectrophotometry method，the best wavelength is 230nm. The oil content for the standard curves should be controlled less than 300mg/L. The dosage of emulsifier should be more than 0.05%. The operation procedure of determination process and the solution preparation method were setup. The error，reproducibility and practicality of the method were verified. The results indicate that the method is an effective for evaluating the emulsifying ability of surfactants used in oil field.

The composition and content of emulsifier and antirusting agent were investigated in grinding fluid by investigating the influence of kind and amount of surfactants and antirusting agent on the performance of microemulsion grinding fluid. Microemulsion grinding fluid was prepared and measured. The results showed that the oil removal rate is 95% with emulsifier formed from a mixture of four non-ionic surfactant of 6%. And the optimal composition of antirusting agent is as follows：monoethanolamine 8%，triethanolamine 8%，benzotriazole 0.3%. The antirust performance of microemulsion grinding fluid has reached the Chinese National Standard-the Synthesized Cutting Fluid (GB6144—85).