FR2197871B1 - - Google Patents

Info

Publication number
FR2197871B1
FR2197871B1 FR7230809A FR7230809A FR2197871B1 FR 2197871 B1 FR2197871 B1 FR 2197871B1 FR 7230809 A FR7230809 A FR 7230809A FR 7230809 A FR7230809 A FR 7230809A FR 2197871 B1 FR2197871 B1 FR 2197871B1
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
FR7230809A
Other languages
French (fr)
Other versions
FR2197871A1 (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 SA
Original Assignee
Rhone Poulenc 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 SA filed Critical Rhone Poulenc SA
Priority to FR7230809A priority Critical patent/FR2197871A1/en
Publication of FR2197871A1 publication Critical patent/FR2197871A1/en
Application granted granted Critical
Publication of FR2197871B1 publication Critical patent/FR2197871B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
    • C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D207/24—Oxygen or sulfur atoms
    • C07D207/26—2-Pyrrolidones
    • C07D207/263—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms
    • C07D207/267—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to the ring nitrogen atom
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/16—Separation or purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
FR7230809A 1972-08-30 1972-08-30 Purificn of N-alkylpyrrolidone after acetylene extraction from gas mix - using ultra filtration, membrane being pref selected from cellulose acetate PTFE etc Granted FR2197871A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7230809A FR2197871A1 (en) 1972-08-30 1972-08-30 Purificn of N-alkylpyrrolidone after acetylene extraction from gas mix - using ultra filtration, membrane being pref selected from cellulose acetate PTFE etc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7230809A FR2197871A1 (en) 1972-08-30 1972-08-30 Purificn of N-alkylpyrrolidone after acetylene extraction from gas mix - using ultra filtration, membrane being pref selected from cellulose acetate PTFE etc

Publications (2)

Publication Number Publication Date
FR2197871A1 FR2197871A1 (en) 1974-03-29
FR2197871B1 true FR2197871B1 (en) 1975-01-03

Family

ID=9103705

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7230809A Granted FR2197871A1 (en) 1972-08-30 1972-08-30 Purificn of N-alkylpyrrolidone after acetylene extraction from gas mix - using ultra filtration, membrane being pref selected from cellulose acetate PTFE etc

Country Status (1)

Country Link
FR (1) FR2197871A1 (en)

Also Published As

Publication number Publication date
FR2197871A1 (en) 1974-03-29

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Legal Events

Date Code Title Description
ST Notification of lapse