Process for waste liquid-free processing of chlorosilane distill

Details Process for waste liquid-free processing of chlorosilane distill Process for waste liquid-free processing of chlorosilane distill

1992-08-11

1993-09-21

Kunemund, Robert

Chemistry of inorganic compounds

Silicon or compound thereof

Elemental silicon

210712, 405129, 423488, C01B 3300, C01B 3308

Patent

active

052466825

ABSTRACT:
A process for waste liquid-free processing of residues of chlorosilane distillations, wherein the residue is allowed to react with liquid hydrochloric acid accompanied by the release of hydrogen chloride, the resulting reaction mixture is allowed to coagulate, the solid phase is separated and dried and heat-treated, and the liquid phase and the condensed gaseous constituents are recycled into the process.

REFERENCES:
patent: 5066472 (1991-11-01), Ruff et al.
patent: 5080804 (1992-01-01), Ruff
patent: 5094830 (1992-03-01), Tom et al.
patent: 5182095 (1993-01-01), Ruff et al.

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