Products are widely used in metallurgy, iron and steel, cement, chemical, pharmaceutical food, paper and other industries producing filter, dust smoke, dust and recycling waste water treatment.
In this paper, the scientific bases for preparation of filter-aid have been discussed and the chemical properties and physical structure of perlite filter-aid have been analysed.
本文讨论了制造助滤剂的科学基础，测定了珍珠岩助滤剂的化学性质和物理结构。
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The utility model relates to a full-closed full-heat micro-grade disk type paperfilter, which belongs to the technical field of chemical equipment.