4A zeolite Development Review

Back in the late 1950s, Germany's Henkel Corporation, Deguss companies first complete the 4A zeolite as a detergent phosphate substitutes. The early 1970s, Henkel company with annual output of 250,000 tons of heavy-duty powder detergent with 30,000 tons of 4A zeolite to replace half of the phosphate. At the same time, Deguss to market HB-40 license 4A zeolite washing detergent, and for the Tide brand laundry detergent. The quality of zeolite was not very good and the price is relatively high, but because of the 27 U.S. states have implemented measures "being banned", the detergent zeolite industry is still obtained considerable development. The Netherlands, Akzo, USA Union Carbide Corporation began to study the 4A zeolite as detergent washing performance and security, and obtain a patent. Hungary, Italy, UK and other countries also carried out the 4A zeolite as the research and application of the detergent builder. At this point, had been formed in the early 1980s, five brand-name products for cleaning aids 4A zeolite production line. It is estimated that in 1984, U.S. consumption of 4A zeolite 650,000 tons, while the sodium tripolyphosphate industry suffered heavy losses the same period, production and sales declined by 50%. With the improvement of the production process, the quality of zeolite, yield a gradual increase throughout the 1980s. In 1993, some U.S. state governments to do the new regulations, 10 percent of the sales tax levied on phosphorus household detergent, to further restrict the sale of phosphorus detergents. The amount of increase to 1.1 million tons from 126,000 tons in the early 1990s. Then concentrated powder has greatly stimulated the development of the zeolite, 4A zeolite can carry more non-ionic surfactant, and thus able to large-scale application in a concentrated powder, so that the surge in demand for zeolite four times . The surge in market demand to bring good opportunities for development to the manufacturer, P & G, respectively, in Kansas, Indiana and Georgia and other states to a new three zeolite plants, bringing its total production capacity of 165,000 tons / year; the Albermarle company also transformation its plant in Pasadena, make it an annual output of zeolite reach 150,000 tons; 1992, Lever Brothers set up a subsidiary in the United States Joliet Crossfield chemicals, the annual output of 55,000 tons of zeolite. U.S. detergent zeolite annual output reached 500,000 tons, can only meet about 30 percent of its market demand. In Europe. Zeolite with the United States in the application process of the washing industry. Currently, countries such as Switzerland, Norway, Germany and Italy carried out being banned measures, Britain, France, Switzerland and Denmark, the proportion of non-phosphorus powder in more than 80%. Italy's per capita washing with zeolite consumption of 2.36kg / year, Germany followed by up to 1.7kg / European market for detergents 4A zeolites consumption of 650,000 tons / year. In Asia, Japan and South Korea have been the implementation of a very high proportion of non-phosphorus powder, Thailand, Malaysia and Indonesia, the phosphor of State for the total needs of the Asia-Pacific region is about 800,000 tons / year, China from the 1970s began the work of the research applications of 4A zeolite. Chinese mainland's first 4A zeolite production line was built in 1992 in Shandong Aluminum, and was invested 40 million yuan, the design and production scale of 20,000 tons, the actual output of the year July 1, 6000t.1983 original Light Industry released with the 4A boiling The standard of stone washing powder and detergent use 4A zeolite standard, non-phosphorus detergent industry standard promulgated in 1996, China's washing 4A zeolite industrial applications to a new stage. 1996, the amount of domestic 1.5 million tons, January 1, 1999, the Taihu Lake area, after being banned in comprehensive management in Taihu Lake, Dianchi Lake, Chaohu Lake and the Bohai region is also implemented on a being banned, in 2000 domestic 4A zeolite consumption reached 400,000 tons.