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

用性汽油进行预洗时易产生大量废，为彻底消除废提出了用固体预处理代替性预洗的方法。

Compared with alkali-washing electrofining method, no strong acid and strong base were used, no high electric field settling separation tank.

与洗电精制法相比，该法不使用强酸强，不需要高压电场沉罐。

A combined acid cleaning technique of alkaline and acid cleaning with oxidizability was developed in the proress of trial-produrtion of armour-piercing shell body.

介绍穿甲弹体氧化性洗与氧化性酸洗相结合的酸洗新工艺。

By use of caustic washing electrofining method to decrease the acidity of straight run diesel oil,serious diesel oil emulsification problem can occure often.

采用洗电精制方法低直馏柴油酸度时,往往会产生严重的柴油乳化现象。