Process for preparing alkylchlorosilanes from the residues...

Details Process for preparing alkylchlorosilanes from the residues... Process for preparing alkylchlorosilanes from the residues...

2005-09-06

2005-09-06

Barts, Samuel (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

C556S468000, C556S473000, C556S477000

Reexamination Certificate

active

06939984

ABSTRACT:
The invention provides a continuous process for preparing alkylchlorosilanes from the residues of direct synthesis of alkylchlorosilanes which comprise liquid constituents with a boiling point of at least 70° C. at 1013 hPa and may also contain solids, with hydrogen chloride, by passing the residues at a temperature not above 200° C. and hydrogen chloride at a temperature higher than the latter into a reactor so that the resultant reaction temperature is from 400° C. to 800° C.

REFERENCES:
patent: 2681355 (1954-06-01), Barry et al.
patent: 5877337 (1999-03-01), Maufner et al.
patent: 2002/0183537 (2002-12-01), Streckel et al.
patent: 0 635 510 (1995-01-01), None

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