GB609134A - Improvements in and relating to the hydrogenation of halogenosilanes - Google Patents

Improvements in and relating to the hydrogenation of halogenosilanes

Info

Publication number
GB609134A
GB609134A GB6994/46A GB699446A GB609134A GB 609134 A GB609134 A GB 609134A GB 6994/46 A GB6994/46 A GB 6994/46A GB 699446 A GB699446 A GB 699446A GB 609134 A GB609134 A GB 609134A
Authority
GB
United Kingdom
Prior art keywords
hydrogen
aluminium
silicon tetrachloride
silicon
reacted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB6994/46A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB609134A publication Critical patent/GB609134A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/04—Hydrides of silicon
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/08—Compounds containing halogen
    • C01B33/107—Halogenated silanes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic System
    • C07F7/02—Silicon compounds
    • C07F7/08—Compounds having one or more C—Si linkages
    • C07F7/0896—Compounds with a Si-H linkage

Abstract

At least some of the halogen atoms in a halogenated silane are replaced with hydrogen by contacting a mixture of the halogenated silane and hydrogen or a hydrogen halide in the vapour state at an elevated temperature with aluminium, magnesium or zinc. The halogenated silane may contain at least three silicon-bonded halogen atoms or may be a silicon tetrahalide or a methyl-trihalogenosilane. Vapours of silicon tetrachloride may be reacted with hydrogen in a ratio of at least one mol. of hydrogen to one of silicon tetrachloride in the presence of granular aluminium at a temperature between 300 DEG and 500 DEG C. In examples: (1) silicon tetrachloride vapour and hydrogen are passed over heated aluminium to yield dichloro- and trichlorosilane and unreacted silicon tetrachloride; (2) methyltrichlorosilane and hydrogen are passed over heated aluminium granules with or without powdered copper to give methyl-dichlorosilane; (3) silicon tetrachloride vapour and hydrogen gas are reacted in the presence of heated granular zinc or magnesium to yield volatile compounds containing hydrogen having a boiling point below that of silicon tetrachloride; (4) methyltrichlorosilane vapour and hydrogen chloride gas are reacted in the presence of aluminium granules to yield compounds more volatile than and containing more hydrogen than methyltrichlorosilane; (5) a mixture of vapours comprising silico-chloroform and hydrogen are passed over heated aluminium granules to yield monosilane, monochlorosilane, dichlorosilane and unreacted silico - chloroform. Similarly, the bromosilones, e.g. silicon tetrabromide, tribromosilane, methyltribromosilane may be reacted with hydrogen, hydrogen chloride or hydrogen bromide in the presence of aluminium, zinc or magnesium.
GB6994/46A 1945-03-15 1946-03-06 Improvements in and relating to the hydrogenation of halogenosilanes Expired GB609134A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US609134XA 1945-03-15 1945-03-15

Publications (1)

Publication Number Publication Date
GB609134A true GB609134A (en) 1948-09-27

Family

ID=22032521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6994/46A Expired GB609134A (en) 1945-03-15 1946-03-06 Improvements in and relating to the hydrogenation of halogenosilanes

Country Status (1)

Country Link
GB (1) GB609134A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0621280A1 (en) * 1993-04-22 1994-10-26 Th. Goldschmidt AG Process for the preparation of silanes or organosiliconhydrides by the reduction of the corresponding halogen containing silicon compounds
EP0661288A1 (en) * 1993-12-29 1995-07-05 Dow Corning Corporation Process for hydrogenation of chlorosilane
WO2012123158A1 (en) * 2011-03-16 2012-09-20 Evonik Degussa Gmbh Reactor design for reacting organochlorosilanes and silicon tetrachloride to obtain hydrogen-containing chlorosilanes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0621280A1 (en) * 1993-04-22 1994-10-26 Th. Goldschmidt AG Process for the preparation of silanes or organosiliconhydrides by the reduction of the corresponding halogen containing silicon compounds
EP0661288A1 (en) * 1993-12-29 1995-07-05 Dow Corning Corporation Process for hydrogenation of chlorosilane
WO2012123158A1 (en) * 2011-03-16 2012-09-20 Evonik Degussa Gmbh Reactor design for reacting organochlorosilanes and silicon tetrachloride to obtain hydrogen-containing chlorosilanes
CN103415469A (en) * 2011-03-16 2013-11-27 赢创德固赛有限公司 Reactor design for reacting organochlorosilanes and silicon tetrachloride to obtain hydrogen-containing chlorosilanes

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