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GB867230A - Process for the production of dimethylols - Google Patents

Process for the production of dimethylols

Info

Publication number
GB867230A
GB867230A GB28161/57A GB2816157A GB867230A GB 867230 A GB867230 A GB 867230A GB 28161/57 A GB28161/57 A GB 28161/57A GB 2816157 A GB2816157 A GB 2816157A GB 867230 A GB867230 A GB 867230A
Authority
GB
United Kingdom
Prior art keywords
acid
dimethylol
hydroformylation
product
aldehydo
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
GB28161/57A
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.)
Ruhrchemie AG
Original Assignee
Ruhrchemie 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 Ruhrchemie AG filed Critical Ruhrchemie AG
Publication of GB867230A publication Critical patent/GB867230A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/132—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group
    • C07C29/136—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH
    • C07C29/14—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of a —CHO group
    • C07C29/141—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of a —CHO group with hydrogen or hydrogen-containing gases
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/10—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide
    • C07C51/14—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide on a carbon-to-carbon unsaturated bond in organic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

An aliphatic primary dimethylol is produced by subjecting an olefinically-unsaturated fatty acid having at least 16 carbon atoms in the molecule to hydroformylation, treating the product with liquid water at elevated temperature and under pressure to purify the aldehydomonocarboxylic acid formed, and converting the purified aldehydo-monocarboxylic acid into the dimethylol by the two-stage hydrogenation process described and claimed in Specification 867,229. The product may be fractionated under high vacuum after the separation of the hydrogenation catalyst. When the hydroformylation is carried out batchwise it is preferred to introduce the unsaturated acid into the hydroformylation zone during 50% to 90% of the period required for the carbon monoxide and hydrogen addition. In the example a mixture of unsaturated fatty acids containing oleic, isoleic, linoleic, linolenic and clupanodic acid is hydroformylated using a cobalt sulphate solution containing iron and hydroquinone as catalyst; the mixture of aldehydo-carboxylic acids is washed with liquid water at elevated temperature and pressure and hydrogenated according to the process described in Specification 867,229. The product consists mainly of heptadecane-dimethylol with some heptadecane methylol. Specification 734,030 also is referred to.
GB28161/57A 1956-09-19 1957-09-06 Process for the production of dimethylols Expired GB867230A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE867230X 1956-09-19

Publications (1)

Publication Number Publication Date
GB867230A true GB867230A (en) 1961-05-03

Family

ID=6802114

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28161/57A Expired GB867230A (en) 1956-09-19 1957-09-06 Process for the production of dimethylols

Country Status (1)

Country Link
GB (1) GB867230A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4216344A (en) * 1979-04-04 1980-08-05 Henkel Corporation High molecular weight polyol mixtures
US4304945A (en) * 1979-04-04 1981-12-08 Henkel Corporation High molecular weight products

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4216344A (en) * 1979-04-04 1980-08-05 Henkel Corporation High molecular weight polyol mixtures
US4304945A (en) * 1979-04-04 1981-12-08 Henkel Corporation High molecular weight products

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