GB860318A - Separation of methyl borate-methanol azeotrope - Google Patents

Separation of methyl borate-methanol azeotrope

Info

Publication number
GB860318A
GB860318A GB1489/59A GB148959A GB860318A GB 860318 A GB860318 A GB 860318A GB 1489/59 A GB1489/59 A GB 1489/59A GB 148959 A GB148959 A GB 148959A GB 860318 A GB860318 A GB 860318A
Authority
GB
United Kingdom
Prior art keywords
distillation
mixtures
methanol
trimethyl borate
inhibiting
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
GB1489/59A
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.)
US Borax Inc
Original Assignee
United States Borax and Chemical Corp
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 United States Borax and Chemical Corp filed Critical United States Borax and Chemical Corp
Publication of GB860318A publication Critical patent/GB860318A/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
    • C07F5/00Compounds containing elements of Groups 3 or 13 of the Periodic Table
    • C07F5/02Boron compounds
    • C07F5/04Esters of boric acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Trimethyl borate and methanol are separated from azeotropic and non-azeotropic mixtures thereof by distillation from a still equipped with a reflux column, an organic solvent of boiling-point between 100 DEG and 275 DEG C. being introduced into the column during the distillation to inhibit selectively the distillation of one of the components. Non-polar solvents inhibiting the distillation of trimethyl borate from its mixtures with methanol are exemplified by paraffinic hydrocarbons of from 8 to 15 carbon atoms per molecule, e.g. octane and decane, and mixtures thereof, e.g. kerosene; aromatic hydrocarbons containing one or two non-fused aromatic nuclei, and their halogen and short-chain alkyl derivatives, e.g. biphenyl, xylene and dichlorobenzene; and ethers whose organic radicals are mononuclear aromatic radicals, e.g. diphenyl ether. Polar solvents inhibiting the distillation of methanol from its mixtures with trimethyl borate, and whose molecules contain an unshared pair of electrons on an atom of oxygen, nitrogen or sulphur, are exemplified by mono- or di-alkyl N-substituted formamide, acetamide, or propionamide, the alkyl group or groups containing either 1 or 2 carbon atoms; dimethylsulphoxide; phenol and short-chain alkyl derivatives of phenol, e.g. cresol.
GB1489/59A 1958-02-12 1959-01-15 Separation of methyl borate-methanol azeotrope Expired GB860318A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US860318XA 1958-02-12 1958-02-12

Publications (1)

Publication Number Publication Date
GB860318A true GB860318A (en) 1961-02-01

Family

ID=22195809

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1489/59A Expired GB860318A (en) 1958-02-12 1959-01-15 Separation of methyl borate-methanol azeotrope

Country Status (1)

Country Link
GB (1) GB860318A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011120927A1 (en) * 2010-03-29 2011-10-06 Esteve Química, S.A. Process for obtaining emtricitabine
CN116041379A (en) * 2023-02-27 2023-05-02 贵州威顿晶磷电子材料股份有限公司 Environment-friendly preparation equipment and method for electronic grade trimethyl borate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011120927A1 (en) * 2010-03-29 2011-10-06 Esteve Química, S.A. Process for obtaining emtricitabine
EP2377862A1 (en) * 2010-03-29 2011-10-19 Esteve Química, S.A. Process for obtaining emtricitabine
CN116041379A (en) * 2023-02-27 2023-05-02 贵州威顿晶磷电子材料股份有限公司 Environment-friendly preparation equipment and method for electronic grade trimethyl borate
CN116041379B (en) * 2023-02-27 2023-09-26 贵州威顿晶磷电子材料股份有限公司 Environment-friendly manufacturing method and matched manufacturing equipment for electronic grade trimethyl borate

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