GB832333A - Improvements in methods of producing silane of high purity - Google Patents

Improvements in methods of producing silane of high purity

Info

Publication number
GB832333A
GB832333A GB2969256A GB2969256A GB832333A GB 832333 A GB832333 A GB 832333A GB 2969256 A GB2969256 A GB 2969256A GB 2969256 A GB2969256 A GB 2969256A GB 832333 A GB832333 A GB 832333A
Authority
GB
United Kingdom
Prior art keywords
thf
solution
alh3
alcl3
aluminium hydride
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
GB2969256A
Inventor
Jack Augustus Radley
Eric Foster
Noreen Elizabeth Wenallt Jones
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB2969256A priority Critical patent/GB832333A/en
Priority to CH5101857A priority patent/CH373364A/en
Publication of GB832333A publication Critical patent/GB832333A/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
    • C01B33/043—Monosilane

Abstract

Silane is produced by reacting silicon tetrachloride with calcium aluminium hydride, magnesium aluminium hydride, or aluminium hydride in a carrier of tetrahydrofuran. Ca(AlH4)2, Mg(AlH4)2, or AlH3 are prepared by reacting 2 mols. AlCl3 with 4 or 3 mols. CaH2 or MgH2.AlCl3 is refluxed in 1 in THF while CaH2 is slurried in THF in 2. Requisite proportions of slurry and solution are mixed in 3 at, or close <FORM:0832333/III/1> to, the boiling point of THF, 66 DEG C., in a dry, oxygen-free, atmosphere, e.g. H2 or N2. The resulting solution is filtered, or decanted, off and reacted in 4 with SiCl4 as liquid, or in solution in THF at 10-66 DEG C., while an O2-free gas, e.g. A, N2, or H2, sweeps out the SiH4. After filtering off CaCl2, the THF solution of AlCl3 from 4 may be reused. As a modification of the process where AlH3 is the reactant, SiCl4 may be added at 3 to react with the AlH3 as it is formed, and the gas used to sweep out silane provides the O2-free atmosphere. Specification 745,698 is referred to.
GB2969256A 1956-09-28 1956-09-28 Improvements in methods of producing silane of high purity Expired GB832333A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2969256A GB832333A (en) 1956-09-28 1956-09-28 Improvements in methods of producing silane of high purity
CH5101857A CH373364A (en) 1956-09-28 1957-09-27 Process for the production of silicon hydride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2969256A GB832333A (en) 1956-09-28 1956-09-28 Improvements in methods of producing silane of high purity

Publications (1)

Publication Number Publication Date
GB832333A true GB832333A (en) 1960-04-06

Family

ID=10295590

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2969256A Expired GB832333A (en) 1956-09-28 1956-09-28 Improvements in methods of producing silane of high purity

Country Status (1)

Country Link
GB (1) GB832333A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002332A1 (en) * 1982-12-13 1984-06-21 Ethyl Corp Process for production of silane
US4632816A (en) * 1982-12-13 1986-12-30 Ethyl Corporation Process for production of silane
US4725419A (en) * 1985-05-17 1988-02-16 Ethyl Corporation Silane production from magnesium hydride
US5075092A (en) * 1987-07-20 1991-12-24 Ethyl Corporation Process for preparation of silane
DE102009056731A1 (en) 2009-12-04 2011-06-09 Rev Renewable Energy Ventures, Inc. Halogenated polysilanes and polygermanes

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984002332A1 (en) * 1982-12-13 1984-06-21 Ethyl Corp Process for production of silane
US4632816A (en) * 1982-12-13 1986-12-30 Ethyl Corporation Process for production of silane
US4725419A (en) * 1985-05-17 1988-02-16 Ethyl Corporation Silane production from magnesium hydride
US5075092A (en) * 1987-07-20 1991-12-24 Ethyl Corporation Process for preparation of silane
DE102009056731A1 (en) 2009-12-04 2011-06-09 Rev Renewable Energy Ventures, Inc. Halogenated polysilanes and polygermanes
US9040009B2 (en) 2009-12-04 2015-05-26 Spawnt Private S.à.r.1. Kinetically stable chlorinated polysilanes and production thereof
US9139702B2 (en) 2009-12-04 2015-09-22 Spawnt Private S.A.R.L. Method for producing halogenated polysilanes
US9458294B2 (en) 2009-12-04 2016-10-04 Spawnt Private S.À.R.L. Method for removing impurities from silicon

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