文献类型：期刊文献

英文题名：A contactor for liquid-liquid and liquid-solid extraction of vanillin

作者：Zhu, F.G.[1]; Zhou, S.H.[1]

机构：[1]E China Univ Chem Technol, Petrochem Inst, Shanghai 201512, Peoples R China

年份：2002

卷号：41

期号：9

起止页码：2316

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：2002196938724);WOS:【SCI-EXPANDED(收录号:WOS:000175243500028)】；

语种：英文

外文关键词：Corrosion resistance - Purification

摘要：A special reciprocating plate extraction contactor using vibration of high frequency and low amplitude and the component materials, which are oil-attractive, water-repellent, and corrosion-resisting, and the method of reverse phase extraction have been studied for extracting vanillin from acidified solution containing sticky particles. The experimental results show that it has considerable characteristics, that is, better extraction efficiency, higher throughput, less time of phase separation, more effective prevention of solids accumulating in the column, and longer service life in corrosion. The extraction of liquid-liquid and liquid-solid can be performed continuously in the same column when the vanillin transfers from the drops phase, in which the particles adsorb some vanillin, to the continuous phase. Extraction efficiency of 95% and crude vanillin of 88.6% can be obtained, resulting in a total yield of the purification processes from 66.5% up to 86.5%.