The present paper introduced mainly several methods of recovering oil fr om used bleachingclay.
本文主要介绍了回收废白土中油脂的几种方法。
2
With the raw material of spent bleachingclay of oil refining, the regenerated technology was studied.
以油脂生产中的脱色废白土为原料，制备再生白土。
3
With the raw material of spent bleachingclay of castor oil refining, castor oil was recovered by 6# solvent extraction with special equipment designed and manufactured by oneself.