GB191203923A - Process for the Manufacture of Pure Meta-cresol. - Google Patents

Process for the Manufacture of Pure Meta-cresol.

Info

Publication number
GB191203923A
GB191203923A GB191203923DA GB191203923A GB 191203923 A GB191203923 A GB 191203923A GB 191203923D A GB191203923D A GB 191203923DA GB 191203923 A GB191203923 A GB 191203923A
Authority
GB
United Kingdom
Prior art keywords
cresol
acid
manufacture
cresols
production
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
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Application granted granted Critical
Publication of GB191203923A publication Critical patent/GB191203923A/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
    • C07C37/86—Purification; separation; Use of additives, e.g. for stabilisation by treatment giving rise to a chemical modification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Saccharide Compounds (AREA)

Abstract

3923. Hoffmann-La Roche & Co., F. April 26, 1911, [Convention date]. m-Cresol; m-cresolsulphonic acid. - In a process for the production of pure m-cresol, the product obtained as described in Specification 25,166/11 by sulphonating a mixture of m- and p-cresols with the quantity of sulphuric acid requisite for the production nf the monosulphonic acids of both cresols, or with less acid, and splitting up the m-cresolsulphonic acid which crystallizes out, is subjected to a repetition of the process. Commercial m-cresol may also he similarly treated.
GB191203923D 1911-04-26 1912-02-16 Process for the Manufacture of Pure Meta-cresol. Expired GB191203923A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE191203923X 1911-04-26

Publications (1)

Publication Number Publication Date
GB191203923A true GB191203923A (en) 1912-09-26

Family

ID=32522275

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191203923D Expired GB191203923A (en) 1911-04-26 1912-02-16 Process for the Manufacture of Pure Meta-cresol.

Country Status (1)

Country Link
GB (1) GB191203923A (en)

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