A improved process of p-amino-N,N-dimethylaniline applied caustic soda solution as materials was introduced.

阐述了采用液(钠溶液)代替氨水氨基-N,N-二甲基胺的方法。

As caustic solution prewashing of FCC gasoline discharges lots of lye, it is nec essary to improve the process.

用液汽油进行预洗时易大量废液，为彻底消除废液提出了用固体预处理代替液预洗的方法。