摘要
针对12万t／a（质量分数为27．5％）蒽醌法双氧水生产装置存在的双氧水产品浓度低、萃余液双氧水残留量高和碱耗量大等问题，对该装置的氢化、氧化、萃取和碱处理工序中的关键设备和内构件进行了优化和改造。改造后，双氧水产品质量分数由改造前的20％～23％提升至／〉27．5％，萃余液双氧水残留量由改造前的0．3g／L以上降至0．15∥L以下，碱耗量由改造前的4t／h降至3．4t／h。对蒽醌法双氧水生产装置的优化改造既增加了企业效益，又提高了装置安全性能。
In a hydrogen peroxide （27.5% ,mass fraction） production unit with 120 000 t/a producing capacity by anthra- quinone method, there existed several problems, i.e. low product concentration of hydrogen peroxide, high residual content of hydrogen peroxide in the extraction raffinate, and high alkali consumption etc..The key equipments and internals in the pro- cedures of hydrogenation, oxidation, extraction, and alkali-treatment, were optimized and reformed.After reformation, the product mass fraction of hydrogen peroxide increased to more than 27.5% from the range of 20%-23%, the residual content of hydrogen peroxide in the extraction raffinate decreased to less than 0.15 g/L from higher than 0.30 g/L,the alkali con- sumption decreased to 3.4 t/h from 4.0 t/h.Both the economical benefit of enterprise and the unit operation safety were im- proved after the reformation.
出处
《无机盐工业》
CAS
北大核心
2013年第11期35-37,49,共4页
Inorganic Chemicals Industry
关键词
蒽醌法
双氧水
优化改造
anthraquinone method
hydrogen peroxide
optimization and reforming
