Large-scale apparatus for synthesis of trichlorosilane and synthesis method thereof
A synthesis device, a technology of trichlorosilane, applied in the directions of halogenated silicon compounds, halogenated silanes, etc., can solve the problems of low raw material utilization rate or conversion rate, low trichlorosilane content, unstable reaction, etc. The effect of solid contact time, high product quality, and labor intensity reduction
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[0029] Examples see figure 1 , the large-scale trichlorosilane synthesis device of the present invention has a cylindrical structure, and the enlarged part of the upper cylinder body is a gas-solid separation section 1, and the neck of the gas-solid separation section 1 is rounded and truncated, and this section is provided with a discharge port 8, The opening of discharge port 8 is inclined downward, which is beneficial to discharging.
[0030] The straight barrel section in the middle is the reaction section 2, the reaction section is covered with a heater 3, and a silicon powder feed port 9 is arranged above the heater, and the opening of the silicon powder feed port 9 is inclined upward, which is beneficial for feeding.
[0031] The bottom is connected to the lower head 7, and the lower head is provided with a hydrogen chloride inlet 10 and a slag discharge port 13, and a pressure measuring port 14 can also be provided when necessary.
[0032] A gas distribution plate 11 ...
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