How to use dichlorodihydrosilicon?
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Many friends in this forum have realized the limitations of silicon tetrachloride in polycrystalline production. I wonder if anyone here knows how various factories make full use of dichlorodihydrosilane. Due to its properties, dichlorodihydrosilane is a more dangerous substance than TCS – can it be stored? I hope experienced folks can give some advice. . . . . . . .
In some facilities, dichlorosilane is mixed back into the feed liquid for re-circulation and distillation, while in other facilities it is directly discharged into the exhaust gas treatment system. I recommend constructing an additional distillation tower to purify dichlorosilane
Dichlorodihydrosilicon is widely used in the electronics industry; it can be purified to electronic-grade if conditions permit, yielding high profits. Dichlorodihydrosilicon should be stored in stainless steel pressure tanks at low temperatures, with the vapor being returned using a condenser.
One idea: The final step in the disproportionation method for producing silane gas—what is it used for in silane gas?
If too much of this substance is stored, it represents a serious hazard; in the event of an accident involving dichlorosilane, it will be very difficult to bring the situation under control. As many people have suggested, re-refining it in the raw material tank will eventually result in an accumulation of DCS in that system, and moreover, this substance can cause the tower pressure to rise
After separation, it is purified; generally, the unwanted components are removed
Purify DCS? It is said that high-purity dichlorodisilane can only be produced in Japan. I have searched through many documents, but I’m not sure which company manufactures this product; could you give me some guidance? Are there any companies in China that specialize in the distillation of dichlorodihydrosilane? How do I get rid of this thing? OUOU326, do you mean “get rid of it” as in throwing it away? Hydrolysis? Vent? Neutralize? Could you be more detailed? DCS high-purity products are getting more expensive now.:》
Is it possible to enter the synthesis section to re-synthesize trichlorosilane?
Get rid of it = Pour it out? Vent? Unlikely; disposing of it = hydrolysis? Neutralize? More or less
Dichlorodihydrosilicon cannot be hydrolyzed; it vaporizes upon exposure to air, so it is useless. As for the method mentioned above of synthesizing it, I am not aware of such a method, but handling large amounts of DCS in this way will pose problems
Dichlorodihydrosilicon can’t be hydrolyzed?? It’s not easy to make use of it, and it’s also difficult to get rid of it It vaporizes as soon as it comes into contact with air; you can prevent it from coming into contact with air by putting it in water and sealing the container. Last edited by LHY8771 on 2009-2-5 16:51.]