气相二氧化硅又称气相法白发黑,自1941年德国Degussa公司成功开发出以四氯化硅氢氧焰水解法制气相法白炭黑的工艺技术以来,国外的气相法白炭黑工业经过60多年的发展,已达到很高的水平。德国Degussa、Wacker, 美国Cabot, 日本Tokuyama等少数几家公司控制全球市场,年总产量超过 Fumed silica, also known as fumed silica white, since 1941 Germany Degussa company successfully developed by the hydrolysis of silicon tetrachloride hydride flame hydrolysis of fumed silica technology, foreign fumed silica industry after Over 60 years of development have reached a very high level. A few companies such as Degussa in Germany, Wacker in the United States, Cabot in the United States and Tokuyama in Japan dominated the global market with a total annual output exceeding