溶剂萃取法从发酵清液中提取纯柠檬酸

Purify Citric Acid from Fermentation Aqueous Solution by Solvent Extraction

本文用有机胺作萃取剂提取发酵清液中柠檬酸，用正交试验法确定出了适用于工业生产的工艺条件，研究了萃取和反萃取的平衡级数。

The citric acid in fermentation aqeous solution was purified by the alkylamine.In this paper,the eqilibrium relations and grades were studied on the extraction and the back-extraction for the citric acid.The technological conditions suited to industrial product were also determined by means of perpendicular experiment method.