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FR784458A - Process for preparing anhydrides - Google Patents

Process for preparing anhydrides

Info

Publication number
FR784458A
FR784458A FR784458DA FR784458A FR 784458 A FR784458 A FR 784458A FR 784458D A FR784458D A FR 784458DA FR 784458 A FR784458 A FR 784458A
Authority
FR
France
Prior art keywords
anhydrides
preparing
preparing anhydrides
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
Other languages
French (fr)
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Application granted granted Critical
Publication of FR784458A publication Critical patent/FR784458A/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
    • C07C51/54—Preparation of carboxylic acid anhydrides
    • C07C51/56—Preparation of carboxylic acid anhydrides from organic acids, their salts, their esters or their halides, e.g. by carboxylation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
FR784458D 1933-11-17 1934-11-17 Process for preparing anhydrides Expired FR784458A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE784458X 1933-11-17

Publications (1)

Publication Number Publication Date
FR784458A true FR784458A (en) 1935-07-22

Family

ID=6698536

Family Applications (1)

Application Number Title Priority Date Filing Date
FR784458D Expired FR784458A (en) 1933-11-17 1934-11-17 Process for preparing anhydrides

Country Status (1)

Country Link
FR (1) FR784458A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004641A2 (en) * 1978-04-11 1979-10-17 Bayer Ag Process for preparing carboxylic anhydrides
EP1468980A1 (en) * 2003-04-16 2004-10-20 Atofina Process for making isobutyric anhydride
CN112047834A (en) * 2020-08-11 2020-12-08 浙江恒澜科技有限公司 Device and method for continuously preparing isobutyric anhydride
CN114736116A (en) * 2021-01-07 2022-07-12 南京方生和医药科技有限公司 Preparation method of high-purity palmitic anhydride

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004641A2 (en) * 1978-04-11 1979-10-17 Bayer Ag Process for preparing carboxylic anhydrides
EP0004641A3 (en) * 1978-04-11 1979-10-31 Bayer Ag Process for preparing carboxylic anhydrides
EP1468980A1 (en) * 2003-04-16 2004-10-20 Atofina Process for making isobutyric anhydride
FR2853900A1 (en) * 2003-04-16 2004-10-22 Atofina PROCESS FOR THE MANUFACTURE OF ISOBUTYRIC ANHYDRIDE
CN112047834A (en) * 2020-08-11 2020-12-08 浙江恒澜科技有限公司 Device and method for continuously preparing isobutyric anhydride
CN114736116A (en) * 2021-01-07 2022-07-12 南京方生和医药科技有限公司 Preparation method of high-purity palmitic anhydride
CN114736116B (en) * 2021-01-07 2024-01-05 南京方生和医药科技有限公司 Preparation method of high-purity palmitic anhydride

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