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近年来,采用水不溶性NaA型合成沸石代替合成洗衣粉中的主要助洗剂三聚磷酸钠(STPP),引起国内外洗涤用品行业的极大重视。NaA型合成沸石是迄今STPP代用品中唯一大量用于洗衣粉的物质。据统计,1981年西方国家消耗于洗涤用品的合成沸石已达54万吨。目前,美、西德、日等国都以不同原料和工艺路线工业化生产,规模和产量不断扩大。美国乙基公司合成沸石生产能力已达6.5万吨/年;西德亨凯尔和德古萨公司拟扩大为11.5万吨。日本配加沸石的低磷洗涤剂,1983年已占粉状洗涤剂的60%以上,配加有20%NaA型合成沸石的洗涤剂在洗衣粉总产量中的比重已超过75%。日本
In recent years, the use of water-insoluble NaA-type synthetic zeolite instead of the main detergent in the synthesis of sodium tripolyphosphate (STPP), causing great concern at home and abroad detergent industry. NaA-type synthetic zeolite so far is the only STPP substitute for laundry detergent substance. According to statistics, in 1981, western countries consumed 540,000 tons of synthetic zeolite for cleaning products. At present, the United States, West Germany, Japan and other countries are all industrialized with different raw materials and process routes, and their scale and output are constantly expanding. Ethyl Corporation of the United States synthetic zeolite production capacity has reached 65,000 tons / year; West Germany Hucklear and Tegussa to be expanded to 115,000 tons. Japan with zeolite low-phosphorus detergent, powder detergent accounted for more than 60% in 1983, with 20% NaA-type synthetic zeolite detergent in the total output of the proportion of more than 75%. Japan