Silicon tetrachloride treatment route
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I would like to ask what other treatment routes are there for silicon tetrachloride produced in the polycrystalline silicon industry besides hydrogenation and reduction?
Many domestically produced silicas are used to produce silica, and some companies can use it to react with DCS under a catalyst to generate TCS. Last time, I heard that a certain company also started cold hydrogenation. At least we have always been selling it. Abroad, it seems that cold hydrogenation is becoming more and more popular.
Used as coupling agent in SBS/SIS, etc.
Silica, silicone, even silicon nitride or silicon carbide, and optical fibers can all be synthesized from silicon tetrachloride
At present, the treatment methods are basically divided into two types: hot hydrogenation and cold hydrogenation, and there are no others.
Polycrystalline silicon production produces a large amount of silicon tetrachloride, and the best method is to use cold hydrogenation. This is also the main development trend after the improved Siemens method.
It seems that apart from hydrogenation and reduction, the only production is silica and optical fiber, and the amount of silicone is very small.
If you ask, what is cold hydrogenation? ?
Reply 8# I don’t know about Wu Yinge either
The information above is all wrong. The amount of silicone used is very large. International giants Dow Corning and Wacker both use silicone as their main business, polysilicon as a sideline, and silicon tetrachloride as a raw material for silicone. In addition, in addition to the two kinds of hydrogenation, there are already many silica manufacturers in China.
Cold hydrogenation consumption is a trend in polysilicon plants, and we are installing equipment www.sizxbbs.com