1000吨/年甘氨酸生产母液中甲醇回收新技术

New Technique of Recovery of Methanol from Mother Liquor Produced in Glycine Production

采用具有新型塔内件的高效填料塔技术，将甲醇回收率提高到９８％以上，甲醇纯度可达９９．８％。同时采用连续水蒸汽直接加热的精馏技术，提高了精馏热效率，节约了热能消耗，生产成本显著降低。

The recovery technique of methanol from mother liquor produced in glycine production was effectively improved by the application of continuous steam distillation combined with a high efficiency packing tower. The purity of the recovered methanol increased to 99.8% and the recovery came up to 98%. The production cost has been reduced greatly. The benefit will amount to 9×10 5 Yuan per year in application of this technique to a amino acetic acid plant of 1000t/year.