高岭土法合成沸石的概况及前景

The Prospects of tile Manufacture of Zeolite from Kaoline

由于环保和经济因素,沸石作为洗涤剂中的代磷助剂已是必然的趋势。干燥、吸附、分离、催化,尤其是洗涤剂对沸石的需求,使之具有巨大的市场潜力。使用廉价的高岭土为原料是制取沸石的理想途径。选择低结晶度、较高白度的原料高岭土、采用生产系列化产品的工艺流程、加强应用研究工作,是降低产品成本、推动高岭土法制备沸石技术工业化的关键。对用作洗涤助剂的沸石,交换能力及粒度是影响质量的主要因素,白度则是相对次要的指标。

It has been a clear tendence for the developing of the detergent industry to substitute zeolite for STPP. The key is lowering the cost to realize the application of zeolite on a large scale. Manufacturing zeolite from kaoline is the most economical method. The cost can be greatly lowered by canceling the bleaching and calcinating processee if some special kinds of kaoline ore with low crystability and good whithness are used. A lot of researches remains to be done for industrializing detergent containing zeolite as a substitute for STPP. For the zeolite as detergent aids, exchange capacity and size are the most important while it is unnecessary to overemphasize whiteness.