GB768893A - Process for the production of methyl bromide - Google Patents

Process for the production of methyl bromide

Info

Publication number
GB768893A
GB768893A GB10114/55A GB1011455A GB768893A GB 768893 A GB768893 A GB 768893A GB 10114/55 A GB10114/55 A GB 10114/55A GB 1011455 A GB1011455 A GB 1011455A GB 768893 A GB768893 A GB 768893A
Authority
GB
United Kingdom
Prior art keywords
methyl bromide
sulphur
bromine
boiling
reaction mixture
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
GB10114/55A
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB768893A publication Critical patent/GB768893A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/16—Preparation of halogenated hydrocarbons by replacement by halogens of hydroxyl groups

Landscapes

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

Abstract

Methyl bromide is prepared by reacting methanol, bromine and sulphur at the boiling-point under elevated pressure to distil off the methyl bromide formed, while simultaneously introducing fresh quantities of the reactants into the heated reaction mixture. The pressure is preferably such that the boiling-point of the reaction mixture is 75-85 DEG C. Accumulation of sulphuric acid and other sulphur oxy-acids in the reaction vessel can be prevented by running off the acids continuously or intermittently. It is preferred to use more sulphur and more methanol relative to bromine than corresponds to the theoretical proportions of 1 : 6 : 6 respectively. An example is given.
GB10114/55A 1954-04-06 1955-04-06 Process for the production of methyl bromide Expired GB768893A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE768893X 1954-04-06

Publications (1)

Publication Number Publication Date
GB768893A true GB768893A (en) 1957-02-20

Family

ID=6673839

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10114/55A Expired GB768893A (en) 1954-04-06 1955-04-06 Process for the production of methyl bromide

Country Status (1)

Country Link
GB (1) GB768893A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5455501A (en) * 1977-10-05 1979-05-02 Toyo Soda Mfg Co Ltd Continuous preparation of methyl bromide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5455501A (en) * 1977-10-05 1979-05-02 Toyo Soda Mfg Co Ltd Continuous preparation of methyl bromide

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