甲醇制乙酸工艺中降低杂质离子浓度的研究进展
Progress in reducing the concentration of impurity ions in the methanol to acetic acid process
张宏喜 1于晨雨 1周美边 2杨显德 1顾明兰 3杨晶1
作者信息
- 1. 南宁师范大学广西天然高分子化学与物理重点实验室,广西南宁 530100
- 2. 广西华谊能源化工有限公司,广西 钦州 535008
- 3. 上海华谊能源化工有限公司,上海 200241
- 折叠
摘要
乙酸是合成乙酸乙烯、乙酸酯、乙酸酐和氯乙酸等有机化合物的关键原料.甲醇羰基化制备乙酸是目前的主流工艺,然而在反应液中微量的杂质离子对催化剂的活性和稳定性产生重大的影响.以当前主流的Cativa工艺(铱基均相催化体系)为例,分析了杂质离子的来源及其对催化剂性能的负面影响.综述了当前采用的杂质离子处理策略,并着重介绍了离子交换树脂技术在杂质离子去除中的应用.从而为甲醇羰基化制备乙酸的正常生产提供一定的参考.
Abstract
Acetic acid is a key raw material for the synthesis of organic compounds such as ethylene acetate,acetate,acetic anhydride and chloroacetic acid.The preparation of acetic acid by methanol carbonylation is the current mainstream process,however,trace impurity ions in the reaction solution have a significant impact on the activity and stability of the catalyst.The sources of impurity ions and their negative impact on catalyst performance were analyzed using the current mainstream Cativa process(iridium-based homogeneous catalytic system)as an example.The currently adopted impurity ion treatment strategies and highlights the application of ion exchange resin technology in impurity ion removal were reviewed.Some references for the normal production of acetic acid prepared by methanol carbonylation were provided.
关键词
乙酸/甲醇/羰基化/杂质金属/铱一碘催化剂/树脂脱除法Key words
acetic acid/methanol/carbonylation/impurity metals/iridium-iodine catalyst/resin removal method引用本文复制引用
基金项目
广西科技重大专项(桂科AA23062019)
出版年
2024
国家科技期刊平台
NSTL
万方数据