从糖精生产废液中回收邻氨基苯甲酸工艺优化研究

摘要

针对原有从糖精生产废液中回收邻氨基苯甲酸生产工艺中存在的问题，通过酯化母液氧化处理、碱溶工序滤渣酸溶回用两个优化措施，在Cu2＋离子浓度为15．03 g／L时，使邻氨基苯甲酸回收率达到最高（92．41％）。%In order to solve the problems which exist in process of the recovery of o-aminobenzoic acid from saccharin waste water, oxidation of o -aminobenzoic acid contained waste water and reuse of the waste acid which CuO contained waste residue dissolved in are adopted as optimization measure.o-ami-nobenzoic acid recovery rate is the highest(92.41%) at the concentration of Cu2+reaches 15.03 g/L.