随磷酸盐禁令扩展到这个国家的的40％,沸石制造者正在扩大生产能力以满足增长的需要。目前价格每公斤55～77美分、PQ公司已开工一座年产45000万吨的沸石厂在Jefferson ville Ind.是PQ公司的第三个厂,这个公司另外两个是在Kansas City,Kan的90000万吨的厂,和在Augusta的45000万吨的厂,乙基公司虽然没披露其生 With the phosphate ban expanding to 40% of this country, zeolite makers are expanding their production capacity to meet the growth needs. The current price is 55 to 77 cents per kilogram. PQ has started an annual production of 450 million tons of zeolite plant in Jeffersonville Ind., which is the third plant of PQ Corporation. The other two companies are in Kansas City, Kan 90000. Million tons of plants, and 450 million tons of plants in Augusta, although the ethyl company did not disclose their lives