Dry hydrolysis process for trichlorosilane
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This post was last edited by jingpohu on 2011-12-20 at 19:53. Regarding the process of dry hydrolysis for the synthesis of trichlorosilane residues, does anyone among our colleagues know about it? Urgently needed
Could you introduce the process of dry hydrolysis first?
Is it distilled from the hydrolysis residue?
Hydrolysis, neutralization, pressure filtration. . . . . . . .
Dry hydrolysis – that name is contradictory, isn’t it? It’s hard to understand
Dry hydrolysis of residual siltrichloride system waste. Previously, it was done through drainage and washing; now, with technological upgrades, only a small amount of water is used
It goes through three processes: hydrolysis, neutralization, and pressure filtration. However, care must be taken when handling it. Water treatment systems can explode easily.
Reply to 7# 807011220: Could you please be more detailed? Thank you
Dry hydrolysis – that name is contradictory, isn’t it? It’s not easy to understand… It’s much healthier
The last edit to this post was made by yizhuxuan on 2011-12-26 at 07:53. The dry hydrolysis process is a treatment and recovery method for chlorosilane waste (residue) that eliminates the need for waste liquid discharge: 1. It is treated with hydrochloric acid; the by-products are SiO2 and HCl gas, with the HCl gas being able to be reused in the synthesis process； 2. Treatment with CaO emulsion yields dry SiO2 and CaCl2 as by-products ； The hydrolysis reactions in both of the aforementioned processes take place in glass-lined reactors; they can be used to treat distillation residues, synthesis residues, and cold hydrogenation leaching residues, as well as to recover HCl, with no waste liquid being discharged.
Thank you. Could you go into more detail? What equipment is needed, and what is the process?