A improved process of p-amino-N,N-dimethylaniline applied caustic soda solution as materials was introduced.
阐述了采用
(
性钠溶)代替氨水生产对氨基-N,N-二甲基苯胺的方法。
A improved process of p-amino-N,N-dimethylaniline applied caustic soda solution as materials was introduced.
阐述了采用(性钠溶)代替氨水生产对氨基-N,N-二甲基苯胺的方法。
As caustic solution prewashing of FCC gasoline discharges lots of lye, it is nec essary to improve the process.
用性对汽油进行预洗时
产生大量废，为彻底消除废提出了用固体预处理代替性预洗的方法。
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