The method used in the production today is substitution scrubbing method which weakens the advantage of the plate and frame filter greatly,and reduces the yield rate.

• 研究表明,改用横穿洗涤法进行洗涤可以使洗涤液体积减少一半,提高了过滤收率,同时减少了溶媒损耗和产品损失,并降低了滤饼含水量,取得了明显综合经济效