GB1434062A - Purification of carboxylic acids - Google Patents

Purification of carboxylic acids

Info

Publication number
GB1434062A
GB1434062A GB5534973A GB5534973A GB1434062A GB 1434062 A GB1434062 A GB 1434062A GB 5534973 A GB5534973 A GB 5534973A GB 5534973 A GB5534973 A GB 5534973A GB 1434062 A GB1434062 A GB 1434062A
Authority
GB
United Kingdom
Prior art keywords
acid
crude
carboxylic
anhydride
carboxylic acid
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
GB5534973A
Other languages
English (en)
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.)
Hoechst AG
Original Assignee
Hoechst 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 Hoechst AG filed Critical Hoechst AG
Publication of GB1434062A publication Critical patent/GB1434062A/en
Priority to US05/868,896 priority Critical patent/US4184037A/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
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/40—Carbon monoxide

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
GB5534973A 1972-11-29 1973-11-29 Purification of carboxylic acids Expired GB1434062A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/868,896 US4184037A (en) 1973-06-21 1978-01-12 Digoxin oxidized product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2258441A DE2258441B2 (de) 1972-11-29 1972-11-29 Verfahren zur Entfernung von Ameisensäure aus Carbonsäuren

Publications (1)

Publication Number Publication Date
GB1434062A true GB1434062A (en) 1976-04-28

Family

ID=5863038

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5534973A Expired GB1434062A (en) 1972-11-29 1973-11-29 Purification of carboxylic acids

Country Status (10)

Country Link
JP (1) JPS4982618A (cs)
BE (1) BE807987A (cs)
BR (1) BR7309246D0 (cs)
CA (1) CA1012982A (cs)
DE (1) DE2258441B2 (cs)
ES (1) ES420796A1 (cs)
FR (1) FR2207899B1 (cs)
GB (1) GB1434062A (cs)
IT (1) IT1001930B (cs)
NL (1) NL7316048A (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110372A (en) * 1972-11-29 1978-08-29 Hoechst Aktiengesellschaft Process for the purification of carboxylic acids

Also Published As

Publication number Publication date
CA1012982A (en) 1977-06-28
NL7316048A (cs) 1974-05-31
DE2258441A1 (de) 1974-06-12
IT1001930B (it) 1976-04-30
BR7309246D0 (pt) 1974-08-29
DE2258441B2 (de) 1979-11-08
BE807987A (fr) 1974-05-29
ES420796A1 (es) 1976-03-16
FR2207899B1 (cs) 1977-08-12
FR2207899A1 (cs) 1974-06-21
JPS4982618A (cs) 1974-08-08

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee