【摘要】 随着人们环保意识的日益增强，废白土给环境所带来的污染越来越受到人们的重视。同时，在达到同样目的的前提下，如何通过减少白土的用量来降低脱色成本，逐渐成为人们研究的焦点。本文所介绍的预脱色与电子过滤工艺可以有效地节省白土用量达５０％ 之多，经济效益十分显著。更多还原

【Abstract】 The ever more stringent environmental regulations are now forcing oil refiners to drastically reduce the bleaching earth consupmtion.The application and combination of pre-bleaching and electric filtration attribute to the solution of this prlblems.Up to 50% of bleaching earth can be saved.This new technique will bring more profits for all the refiners.更多还原