GB1356620A - Purifying mixtures of aliphatic dicarboxylic acids - Google Patents

Purifying mixtures of aliphatic dicarboxylic acids

Info

Publication number
GB1356620A
GB1356620A GB4851171A GB4851171A GB1356620A GB 1356620 A GB1356620 A GB 1356620A GB 4851171 A GB4851171 A GB 4851171A GB 4851171 A GB4851171 A GB 4851171A GB 1356620 A GB1356620 A GB 1356620A
Authority
GB
United Kingdom
Prior art keywords
dicarboxylic acids
mixtures
aliphatic dicarboxylic
oct
catalyst
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
GB4851171A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1356620A publication Critical patent/GB1356620A/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
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/90—Regeneration or reactivation
    • B01J23/94—Regeneration or reactivation of catalysts comprising metals, oxides or hydroxides of the iron group metals or copper
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/31—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Landscapes

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

Abstract

1356620 Dicarboxylic acids BADISCHE ANILIN- & SODA-FABRIK AG 19 Oct 1971 [20 Oct 1970] 48511/71 Heading C2C Mixtures of adipic, glutaric, and succinic acids prepared by oxidizing mixtures of cyclohexanol and cyclohexanone, or cyclohexane with nitric acid at elevated temperature in the presence of copper and vanadium as catalyst are purified by distilling off the nitric acid and water and feeding into a falling film evaporator at 170 to 240‹ C. and a pressure from 1 to 20 mm. The catalyst may be recovered from the residue either by leaching with water or by burning with natural gas and precipitating as oxide from the flue gas by electrostatic methods or cloth filter.
GB4851171A 1970-10-20 1971-10-19 Purifying mixtures of aliphatic dicarboxylic acids Expired GB1356620A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2051320A DE2051320C3 (en) 1970-10-20 1970-10-20 Process for the purification of aliphatic dicarboxylic acid mixtures

Publications (1)

Publication Number Publication Date
GB1356620A true GB1356620A (en) 1974-06-12

Family

ID=5785588

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4851171A Expired GB1356620A (en) 1970-10-20 1971-10-19 Purifying mixtures of aliphatic dicarboxylic acids

Country Status (7)

Country Link
JP (1) JPS5619336B1 (en)
BE (1) BE773890A (en)
DE (1) DE2051320C3 (en)
FR (1) FR2111003A5 (en)
GB (1) GB1356620A (en)
IT (1) IT944759B (en)
NL (1) NL7114294A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1208239A (en) * 1983-06-07 1986-07-22 Christian Leboeuf Semi-refined mixed dicarboxylic acids

Also Published As

Publication number Publication date
IT944759B (en) 1973-04-20
DE2051320A1 (en) 1972-04-27
DE2051320C3 (en) 1982-04-29
NL7114294A (en) 1972-04-24
JPS5619336B1 (en) 1981-05-07
FR2111003A5 (en) 1972-06-02
DE2051320B2 (en) 1975-09-25
BE773890A (en) 1972-04-13

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Legal Events

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