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

用性碱液对汽油进行预碱洗时易量废碱液，为彻底消除废液提出了用固体碱预处理代替性碱液预碱洗的方法。

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

与碱洗电精制法相比，该法不使用碱，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度时,往往会严重的柴油乳化现象。

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碱洗与氧化性洗相结合的洗新工艺。