Abstract: A novel scale and corrosion inhibitor M-04 was prepared from sodium lignosulphonate(SL)，diethylene triamine penta methylene phosphonic acid(DTPMPA)，zinc gluconate(C12H22O14Zn)and methyl benzotriazole(TTA)in aqueous solution. TTA was dissolved in ethanol in advance. The effects of mass fraction of the agents，mass ratio of the main raw materials，proportion of ethanol in the TTA ethanol solution，reaction temperature and time on antiscaling performance were discussed and the optimum preparation condition of M-04 was obtained byorthogonal experiments. The results showed that when the concentration of M-04 was 50 mg/L，the efficiency of scale inhibition of CaCO3 and the transmittance of iron oxide were 84.83% and 63.4% respectively，which indicated that M-04 had a good antiscaling and dispersing capability. The corrosion inhibition capability of M-04 reached 65.7% at the dose of 70 mg/L. Comparing with that，only 10 mg/L M-04 was used after prefilming.

Key words: sodium lignosulphonate, compound, scale and corrosion inhibition, dispersing

摘要： 在水溶液中，以木质素磺酸钠（SL）和二乙烯三胺五亚甲基膦酸（DTPMPA）为原料，与葡萄糖酸锌（C12H22O14Zn）和已溶于乙醇的甲基苯骈三氮唑（TTA）复配，制备了木质素磺酸钠型缓蚀阻垢剂M-04。选取药剂质量分数、主原料配比、乙醇/TTA乙醇溶液、反应时间、反应温度为因素，通过正交实验，确立了最佳复配条件。结果表明，ρ(M-04)=50 mg/L时，阻CaCO3垢率达到了84.83%，分散氧化铁透光率为63.4%，阻垢分散性能良好。ρ(M-04)=70 mg/L时，缓蚀率为65.7%；预膜后仅需10 mg/L，可达到同等缓蚀水平。

关键词: 木质素磺酸钠, 复配, 缓蚀阻垢 , 分散