GB793718A - Improvements in or relating to methods of producing silicon of high purity - Google Patents

Improvements in or relating to methods of producing silicon of high purity

Info

Publication number
GB793718A
GB793718A GB2357755A GB2357755A GB793718A GB 793718 A GB793718 A GB 793718A GB 2357755 A GB2357755 A GB 2357755A GB 2357755 A GB2357755 A GB 2357755A GB 793718 A GB793718 A GB 793718A
Authority
GB
United Kingdom
Prior art keywords
silane
relating
methods
high purity
gas
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
GB2357755A
Inventor
Jack Mccreath Wilson
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 GB2357755A priority Critical patent/GB793718A/en
Publication of GB793718A publication Critical patent/GB793718A/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
    • C01B33/046—Purification
    • 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 results from the reaction of a solution silicon tetrachloride added to a liquid suspension of lithium aluminium hydride which is maintained in excess, over that required for complete chemical reaction, with silicon tetrachloride. The silane is further purified by subsequently passing the gas, through a suspension of the hydride. Tetrahydrofuran is preferred as the liquid medium. Further purification of silane may be effected by heating the gas to a temperature lower than the decomposition temperature of the silane but high enough to decompose other hydrides which may be present. Silicon is produced by thermal decomposition of the silane, preferably according to the method of Specification 745,698.
GB2357755A 1955-08-16 1955-08-16 Improvements in or relating to methods of producing silicon of high purity Expired GB793718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2357755A GB793718A (en) 1955-08-16 1955-08-16 Improvements in or relating to methods of producing silicon of high purity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2357755A GB793718A (en) 1955-08-16 1955-08-16 Improvements in or relating to methods of producing silicon of high purity

Publications (1)

Publication Number Publication Date
GB793718A true GB793718A (en) 1958-04-23

Family

ID=10197933

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2357755A Expired GB793718A (en) 1955-08-16 1955-08-16 Improvements in or relating to methods of producing silicon of high purity

Country Status (1)

Country Link
GB (1) GB793718A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3043664A (en) * 1958-06-09 1962-07-10 Allied Chem Production of pure silane
DE102009056731A1 (en) 2009-12-04 2011-06-09 Rev Renewable Energy Ventures, Inc. Halogenated polysilanes and polygermanes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3043664A (en) * 1958-06-09 1962-07-10 Allied Chem Production of pure 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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