GB960905A - A process for the purification of monocarboxylic acids prepared from olefins, carbonmonoxide and water - Google Patents

A process for the purification of monocarboxylic acids prepared from olefins, carbonmonoxide and water

Info

Publication number
GB960905A
GB960905A GB12167/61A GB1216761A GB960905A GB 960905 A GB960905 A GB 960905A GB 12167/61 A GB12167/61 A GB 12167/61A GB 1216761 A GB1216761 A GB 1216761A GB 960905 A GB960905 A GB 960905A
Authority
GB
United Kingdom
Prior art keywords
acids
water
purification
washing
alkali
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
GB12167/61A
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of GB960905A publication Critical patent/GB960905A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
    • C07C53/122—Propionic acid
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
    • C07C53/126—Acids containing more than four carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
    • C07C53/126—Acids containing more than four carbon atoms
    • C07C53/128—Acids containing more than four carbon atoms the carboxylic group being bound to a carbon atom bound to at least two other carbon atoms, e.g. neo-acids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C57/00—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
    • C07C57/02—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation
    • C07C57/03—Monocarboxylic acids
    • C07C57/04—Acrylic acid; Methacrylic acid

Landscapes

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

Abstract

Monocarboxylic acids prepared by reacting an olefin with carbon monoxide and water in the presence of a catalyst comprising phosphoric acid, boron trifluoride and water, or boron trifluoride and water, are purified by treatment with a compound forming a complex with any metal compounds present, washing with aqueous alkaline solutions and then distilling. The complexing and washing may be in either order, or simultaneous. Preferred complexing agents are di- or poly-basic acids, such as oxalic, tartaric, or citric acids, possibly in admixture with mineral acids, but may also be hydroxy acids, e.g. gluconic, amino acids e.g. glycocoll, nitrilotriacetic acid, or ethylene diamine tetracetic acid, alkali metal salts of these acids, acetylacetone and derivatives thereof, e.g. thienoyl trifluoroacetone, and dithizone. The aqueous alkali preferably has a pH of less than 8.5. The example illustrates the purification of acids prepared from a thermally cracked paraffinic feedstock, with comparative experiments describing the purification by distillation alone, and by washing with alkali and then distilling. Specification 798,065 is referred to.
GB12167/61A 1960-04-07 1961-04-05 A process for the purification of monocarboxylic acids prepared from olefins, carbonmonoxide and water Expired GB960905A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL250282 1960-04-07

Publications (1)

Publication Number Publication Date
GB960905A true GB960905A (en) 1964-06-17

Family

ID=19752265

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12167/61A Expired GB960905A (en) 1960-04-07 1961-04-05 A process for the purification of monocarboxylic acids prepared from olefins, carbonmonoxide and water

Country Status (1)

Country Link
GB (1) GB960905A (en)

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