Abstract:

From the aspects of physical properties such as solubility, boiling point, density, and viscosity, the characteristics of the commonly-used working solution components in hydrogen peroxide production devices through the anthraquinone process were summarized and compared. The disparities in application properties, including gas-liquid mass transfer, water miscibility, liquid-liquid separation, and degradation characteristics between different working solution components, as well as the variations in isomers and impurity contents of the same working solution component, all had an impact on the properties of the working solution, thereby influencing the operational status of hydrogenation process, oxidation process, extraction process, and post-treatment process in hydrogen peroxide production devices. The working solution circulated in the hydrogen peroxide production device, undergoing hydrogenation and oxidation reactions constantly, and it was exposed to acidic and alkaline environments. Working solution components with insufficient chemical stability would undergo excessive degradation, affecting the stable operation of the hydrogen peroxide production device and reducing the quality of the hydrogen peroxide product. The residue of the working solution component or its degradation products in the hydrogen peroxide aqueous solution might also exert an influence on the application effects in downstream fields such as application of high-purity hydrogen peroxide and chemical synthesis.

Key words: anthraquinone process, working solution, working solution component, hydrogen peroxide, chemical synthesis

摘要：

从溶解度、沸点、密度、黏度等物理性质方面出发，本文汇总对比了蒽醌法制过氧化氢装置常用工作液成分的特点。不同工作液成分在气液传质、与水互溶度、液液分离、降解特征等应用性质方面存在差异，同一种工作液成分的同分异构体、杂质含量的不同，均会影响工作液的性质，进而影响过氧化氢生产装置氢化、氧化、萃取、后处理各工序的运行状况。工作液在过氧化氢生产装置中循环，不断发生氢化、氧化反应，并且会接触酸性、碱性环境，化学稳定性不足的工作液成分会发生过度降解，过多的降解物会影响过氧化氢生产装置的稳定运行，降低过氧化氢产品品质。工作液成分或其降解物残留于过氧化氢水溶液中还可能对高纯过氧化氢制备、化工合成等下游领域的应用产生不利影响。

关键词: 蒽醌法, 工作液, 工作液成分, 过氧化氢, 化工合成