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

阐用液碱(苛性钠溶液)代替氨水产对氨基-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.

用苛性碱液对汽油进行预碱洗时易产废碱液，为彻底消除废液提出用固体碱预处理代替苛性碱液预碱洗的方法。