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

用苛性碱油进行预碱洗时易产生大量废碱，为彻底消除废提出了用固体碱预处理代替苛性碱预碱洗的方法。

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

与碱洗电精制法相，该法不使用强酸强碱，不需要高压电场沉降分离罐。

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

采用碱洗电精制方法降低直馏柴油酸度时,往往会产生严重的柴油乳化现。

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.

穿甲弹体氧化性碱洗与氧化性酸洗相结合的酸洗新工艺。