GB907161A - Preparation of organo-halogeno-silanes - Google Patents

Preparation of organo-halogeno-silanes

Info

Publication number
GB907161A
GB907161A GB2214860A GB2214860A GB907161A GB 907161 A GB907161 A GB 907161A GB 2214860 A GB2214860 A GB 2214860A GB 2214860 A GB2214860 A GB 2214860A GB 907161 A GB907161 A GB 907161A
Authority
GB
United Kingdom
Prior art keywords
silicon
alkyl
catalyst
cobalt
silanes
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
GB2214860A
Inventor
Harold Garton Emblem
Richard Charles Le Fleming
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.)
Unilever PLC
Original Assignee
Unilever 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 Unilever PLC filed Critical Unilever PLC
Priority to GB2214860A priority Critical patent/GB907161A/en
Priority to FR865524A priority patent/FR1292674A/en
Priority to DEU8120A priority patent/DE1157230B/en
Publication of GB907161A publication Critical patent/GB907161A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F7/00Compounds containing elements of Groups 4 or 14 of the Periodic Table
    • C07F7/02Silicon compounds
    • C07F7/08Compounds having one or more C—Si linkages
    • C07F7/12Organo silicon halides
    • C07F7/16Preparation thereof from silicon and halogenated hydrocarbons direct synthesis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)

Abstract

Alkyl halosilanes are prepared by reacting at elevated temperatures an alkyl halide with silicon in the presence of a catalyst obtained by reducing cobaltous chloride or bromide by heating it in hydrogen. The cobalt halide may be mixed with the silicon before reducing with hydrogen. The silicon may be in the form of an alloy, e.g. ferrosilicon containing 10-50%, preferably 10-20%, of iron and the usual impurities. The particle size of the alloy is preferably from 76 to 104 microns but sizes outside this range are used. Temperatures at which the cobalt halides are reduced are generally above 300 DEG C. The amount of catalyst should provide a cobalt content of 15-25% by weight of the silicon. Reaction temperatures with the alkyl halides are from 300 DEG -400 DEG C. The examples describe the preparation of methyl and ethyl chlorosilanes, including, for comparison, the use of reduced Co3O4 and no catalyst at all. The products may also inc clude alkyl halo-hydrogeno-silanes.
GB2214860A 1960-06-24 1960-06-24 Preparation of organo-halogeno-silanes Expired GB907161A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2214860A GB907161A (en) 1960-06-24 1960-06-24 Preparation of organo-halogeno-silanes
FR865524A FR1292674A (en) 1960-06-24 1961-06-20 Preparation of halogenated organo-silanes
DEU8120A DE1157230B (en) 1960-06-24 1961-06-22 Process for the preparation of alkylhalosilanes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2214860A GB907161A (en) 1960-06-24 1960-06-24 Preparation of organo-halogeno-silanes

Publications (1)

Publication Number Publication Date
GB907161A true GB907161A (en) 1962-10-03

Family

ID=10174687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2214860A Expired GB907161A (en) 1960-06-24 1960-06-24 Preparation of organo-halogeno-silanes

Country Status (2)

Country Link
DE (1) DE1157230B (en)
GB (1) GB907161A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8030510B2 (en) 2005-06-22 2011-10-04 Rhodia Chimie Process for the direct synthesis of alkylhalosilanes
WO2013093234A1 (en) 2011-12-19 2013-06-27 Bluestar Silicones France Method for the direct synthesis of alkylhalogenosilanes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1008896A (en) * 1949-01-26 1952-05-22 Catalysts and their preparation process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8030510B2 (en) 2005-06-22 2011-10-04 Rhodia Chimie Process for the direct synthesis of alkylhalosilanes
WO2013093234A1 (en) 2011-12-19 2013-06-27 Bluestar Silicones France Method for the direct synthesis of alkylhalogenosilanes

Also Published As

Publication number Publication date
DE1157230B (en) 1963-11-14

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