Study on the preparation of MCA w1ith the process coupling between chlorination and melt crystallization

Yuan Zhang, Xu Qiao, Mifen Cui, Jihai Tang, Jinping Zhang

科研成果: 期刊稿件文章同行评审

摘要

An coupling apparatus with a chlorination reactor and a melt crystallizer was built, which was used in chlorination of acetic acid and separation of monochloroacetic acid (MCA) by crystallization at the same time. It meet the demands for restraining the over-chlorination and increasing the yield of MCA. Under the same conditions of crystallization, the change of the concentration of MCA with the reaction time at different chlorine flow was sdudied. The results showed that a "platform" in the concentration curve of MCA appears when the chlorine flow is 314.6 mL/min, and the reaction capacity matches with the separation capacity at that time. The mass fraction of MCA crystal is 94.9%, and the content of dichloroacetic acid is below 1.5%.

源语言英语
页(从-至)43-46
页数4
期刊Speciality Petrochemicals
3
出版状态已出版 - 18 5月 2005

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