GB706288A - Production of silicon-containing compounds - Google Patents

Production of silicon-containing compounds

Info

Publication number
GB706288A
GB706288A GB10631/52A GB1063152A GB706288A GB 706288 A GB706288 A GB 706288A GB 10631/52 A GB10631/52 A GB 10631/52A GB 1063152 A GB1063152 A GB 1063152A GB 706288 A GB706288 A GB 706288A
Authority
GB
United Kingdom
Prior art keywords
silicon
mixture
alcohol
phenol
orthosilicate
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
GB10631/52A
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.)
Monsanto Chemicals Ltd
Monsanto Chemical Co
Original Assignee
Monsanto Chemicals Ltd
Monsanto Chemical Co
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 Monsanto Chemicals Ltd, Monsanto Chemical Co filed Critical Monsanto Chemicals Ltd
Publication of GB706288A publication Critical patent/GB706288A/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
    • C07F7/04Esters of silicic acids
    • C07F7/06Esters of silicic acids with hydroxyaryl compounds
    • 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
    • C07F7/04Esters of silicic acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Silicon Compounds (AREA)

Abstract

Polysilicates and orthosilicates having alkyl, cycloalkyl, aryl, alkaryl or aralkyl substituents are prepared by reacting anhydrous alcohols or phenols with a mixture consisting of silicon disulphide and a compound, possibly silicon oxysulphide, containing only silicon, oxygen and sulphur, which mixture is obtained by igniting silicon, silica and sulphur preferably in a molar proportion of 1:1:2. The alcohols or phenols employed may have 1-18 carbon atoms such as methanol, ethanol, isopropanol, n p butanol, tertiary butanol, n hexanol, n heptanol, 2 ethylhexanol, n octanol, lauryl or octadecyl alcohol, benzyl alcohol, 2 phenylethanol, or phenols such as phenol, cresol, p-ethylphenol, beta-naphthol or 2-hydroxy diphenyl. The reaction of the phenol or alcohol may take place at ordinary or increased temperatures preferably under reflux, until the hydrogen sulphide evolution has ceased. The reaction product, consisting of the orthosilicate and a mixture of polysilicates may be distilled or employed as such. According to examples:-(1) ethyl alcohol was reacted with the mixture (silicon disulphide and silicon oxysulphide), refluxed for 2 hours and the residue washed with alcohol. Fractionation of the combined filtrate and washings yielded tetraethyl orthosilicate, hexaethyl disilicate and octaethyl trisilicate. (2) the alcohol employed was 2 ethylhexanol, yielding tetrakis (2 ethylhexyl) orthosilicate, tetrakis (2 ethylhexyl) disilicate and octakis (2 ethylhexyl trisilicate. (3) the mixture was finely ground and reacted with phenol in an iron retort 550 DEG C. The unreacted phenol was removed by distillation and the residue removed from the retort and extracted with benzene. Distillation yielded tetraphenyl orthosilicate and a polymeric material having a molecular weight of 930, probably a mixture of octa phenyl trisilicate and decaphenyl tetrasilicate.ALSO:Polysilicates and orthosilicates having alkyl, cycloalkyl, aryl, alkaryl or aralkyl substituents are prepared by reacting anhydrous alcohols or phenols with a mixture consisting of silicon disulphide and a compound, possibly silicon oxysulphide, containing only silicon, oxygen and sulphur, which mixture is obtained by igniting silicon, silica and sulphur preferably in a molar proportion of 1:1:2. The alcohols or phenols employed may have 1-18 carbon atoms such as methanol, ethanol, isopropanol, n butanol, tertiary butanol, n-hexanol, n-heptanol 2-ethylhexanol, n-octanol, lauryl or octadecyl alcohol, benzyl alcohol, 2-phenyl-ethanol, or phenols such as phenol, cresol, p-ethylphenol, beta-naphthol or 2-hydroxy diphenyl. The reaction of the phenol or alcohol may take place at ordinary or increased temperatures preferably under reflux, until the hydrogen sulphide evolution has ceased. The reaction product, consisting of the orthosilicate and a mixture of polysilicates may be distilled or employed as such. According to examples:-(1) Ethyl alcohol was reacted with the mixtures (silicon sulphide and silicon oxysulphide) refluxed for 2 hours and the residue washed with alcohol. Fractionation of the combined filtrate and washings yielded tetraethyl orthosilicate, hexaethyl disilicate and octaethyl trisilicate; (2) The alcohol employed was 2-ethylhexanol, yielding tetrakis (2-ethylhexyl) orthosilicate, hexakis (2-ethylhexyl) disilicate and octakis (2-ethylhexyl) trisilicate; (3) the mixture was finely ground and reacted with phenol in an iron retort at 550 DEG C. The unreacted phenol was removed by distillation and the residue removed from the retort and extracted with benzene. Distillation yielded tetraphenyl orthosilicate and a polymeric material having a molecular weight of 930, probably a mixture of octaphenyl trisilicate and decaphenyl tetrasilicate.ALSO:Silicon, silica and sulphur, preferably in the molar proportion of 1 : 1 : 2 are ignited to prepare a mixture of silicon disulphide and a compound containing only silicon oxygen and sulphur, probably silicon oxysulphide or a cyclic thioether or a polymer of either. The resulting mixture may be reacted with anhydrous alcohols and phenols (see Groups IV (a) and IV (b), 0.5 to 5 per cent. by weight of a heat-producing substance such as peroxide of barium, sodium or potassium may be incorporated before ignition which may be effected at 2000 DEG C. or above. This temperature may be attained by thermite ignition (e.g. a mixture of aluminium and ferric oxide) in a fire-clay crucible. The friable ignition product contains no elemental silicon and little silica.
GB10631/52A 1951-04-27 1952-04-28 Production of silicon-containing compounds Expired GB706288A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US706288XA 1951-04-27 1951-04-27

Publications (1)

Publication Number Publication Date
GB706288A true GB706288A (en) 1954-03-24

Family

ID=22096454

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10631/52A Expired GB706288A (en) 1951-04-27 1952-04-28 Production of silicon-containing compounds

Country Status (1)

Country Link
GB (1) GB706288A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106995459A (en) * 2016-01-26 2017-08-01 赢创德固赛有限公司 The method for preparing the composition containing the ethylhexyl of silicic acid 2

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106995459A (en) * 2016-01-26 2017-08-01 赢创德固赛有限公司 The method for preparing the composition containing the ethylhexyl of silicic acid 2
CN106995459B (en) * 2016-01-26 2019-12-10 赢创德固赛有限公司 Process for preparing 2-ethylhexyl silicate-containing compositions

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