FR2376855B1 - - Google Patents

Info

Publication number
FR2376855B1
FR2376855B1 FR7700314A FR7700314A FR2376855B1 FR 2376855 B1 FR2376855 B1 FR 2376855B1 FR 7700314 A FR7700314 A FR 7700314A FR 7700314 A FR7700314 A FR 7700314A FR 2376855 B1 FR2376855 B1 FR 2376855B1
Authority
FR
France
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
FR7700314A
Other languages
French (fr)
Other versions
FR2376855A1 (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.)
Rhone Poulenc Industries SA
Original Assignee
Rhone Poulenc Industries SA
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 Rhone Poulenc Industries SA filed Critical Rhone Poulenc Industries SA
Priority to FR7700314A priority Critical patent/FR2376855A1/en
Publication of FR2376855A1 publication Critical patent/FR2376855A1/en
Application granted granted Critical
Publication of FR2376855B1 publication Critical patent/FR2376855B1/fr
Granted 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
    • C07C51/573—Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR7700314A 1977-01-07 1977-01-07 Maleic anhydride prodn. from wash soln. of phthalic anhydride mfr. - giving higher recovery and avoiding evaporator incrustation, by distn. and dehydration Granted FR2376855A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7700314A FR2376855A1 (en) 1977-01-07 1977-01-07 Maleic anhydride prodn. from wash soln. of phthalic anhydride mfr. - giving higher recovery and avoiding evaporator incrustation, by distn. and dehydration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7700314A FR2376855A1 (en) 1977-01-07 1977-01-07 Maleic anhydride prodn. from wash soln. of phthalic anhydride mfr. - giving higher recovery and avoiding evaporator incrustation, by distn. and dehydration

Publications (2)

Publication Number Publication Date
FR2376855A1 FR2376855A1 (en) 1978-08-04
FR2376855B1 true FR2376855B1 (en) 1979-08-24

Family

ID=9185215

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7700314A Granted FR2376855A1 (en) 1977-01-07 1977-01-07 Maleic anhydride prodn. from wash soln. of phthalic anhydride mfr. - giving higher recovery and avoiding evaporator incrustation, by distn. and dehydration

Country Status (1)

Country Link
FR (1) FR2376855A1 (en)

Also Published As

Publication number Publication date
FR2376855A1 (en) 1978-08-04

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Legal Events

Date Code Title Description
ST Notification of lapse