ES8500205A1 - Procedimiento para la purificacion de n-metilpirrolidona. - Google Patents

Procedimiento para la purificacion de n-metilpirrolidona.

Info

Publication number
ES8500205A1
ES8500205A1 ES523060A ES523060A ES8500205A1 ES 8500205 A1 ES8500205 A1 ES 8500205A1 ES 523060 A ES523060 A ES 523060A ES 523060 A ES523060 A ES 523060A ES 8500205 A1 ES8500205 A1 ES 8500205A1
Authority
ES
Spain
Prior art keywords
methylpyrrolidone
purification
phenol
dichlorobenzene
recycled
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
ES523060A
Other languages
English (en)
Other versions
ES523060A0 (es
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.)
Phillips Petroleum Co
Original Assignee
Phillips Petroleum Co
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 Phillips Petroleum Co filed Critical Phillips Petroleum Co
Publication of ES8500205A1 publication Critical patent/ES8500205A1/es
Publication of ES523060A0 publication Critical patent/ES523060A0/es
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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pyrrole Compounds (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)

Abstract

PROCEDIMIENTO PARA LA PURIFICACION DE N-METILPIRROLIDONA, CONSISTENTE EN SEPARAR FENOL DE UNA MEZCLA ACUOSA QUE CONTIENE FENOL Y N-METILPIRROLIDONA.CONSISTE EN PONER LA MEZCLA ACUOSA EN CONTACTO CON UN EXTRACTANTE AROMATICO CLORADO PARA FORMAR UNA FASE ACUOSA Y UNA FASE ORGANICA, SIENDO LA RELACION EN PORCENTAJE EN PESO DE FENOL A N-METILPIRROLIDONA, EN LA FASE ORGANICA, SUPERIOR A LA RELACION EN PORCENTAJE EN PESO DE FENOL A N-METILPIRROLIDONA, EN LA FASE ACUOSA.
ES523060A 1982-06-07 1983-06-07 Procedimiento para la purificacion de n-metilpirrolidona. Granted ES523060A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/385,756 US4510316A (en) 1982-06-07 1982-06-07 Purification of N-methylpyrrolidone

Publications (2)

Publication Number Publication Date
ES8500205A1 true ES8500205A1 (es) 1984-10-01
ES523060A0 ES523060A0 (es) 1984-10-01

Family

ID=23522751

Family Applications (1)

Application Number Title Priority Date Filing Date
ES523060A Granted ES523060A0 (es) 1982-06-07 1983-06-07 Procedimiento para la purificacion de n-metilpirrolidona.

Country Status (5)

Country Link
US (1) US4510316A (es)
EP (1) EP0098395B1 (es)
JP (1) JPS591433A (es)
DE (1) DE3366426D1 (es)
ES (1) ES523060A0 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61223094A (ja) * 1985-03-29 1986-10-03 Tokyo Gas Co Ltd 燃料ガス用付臭剤
JP2641501B2 (ja) * 1988-06-10 1997-08-13 東ソー株式会社 Ｎ−メチル−２−ピロリドンの精製方法
US4965370A (en) * 1989-08-21 1990-10-23 Phillips Friedman Company N-methyl-2-pyrrolidone purification
US6051720A (en) * 1999-06-11 2000-04-18 Phillips Petroleum Company Removal of contaminants from N-methyl-2-pyrrolidone
CN113354568B (zh) * 2021-06-28 2024-04-12 合肥中聚和成电子材料有限公司 一种对电子级氮甲基吡咯烷酮极限除水的方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2199786A (en) * 1937-10-14 1940-05-07 Ig Farbenindustrie Ag Extraction of phenols
FR1416405A (fr) * 1964-08-26 1965-11-05 Raffinage Cie Francaise Procédé d'extraction d'hydrocarbures chlorés
US3658659A (en) * 1969-09-24 1972-04-25 Phillips Petroleum Co Separating p-dichlorobenzene from n-methyl pyrrolidone by steam distillation
US3697487A (en) * 1971-05-05 1972-10-10 Phillips Petroleum Co Recovery of diluent in arylene sulfide polymer production
JPS5170712A (en) * 1974-12-16 1976-06-18 Asahi Chemical Ind Suiyoekikarayozaio chushutsukaishusuru hoho
DE3019732A1 (de) * 1980-05-23 1981-12-03 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von polyarylensulfiden

Also Published As

Publication number Publication date
EP0098395A3 (en) 1984-04-04
ES523060A0 (es) 1984-10-01
EP0098395B1 (en) 1986-09-24
US4510316A (en) 1985-04-09
JPH02345B2 (es) 1990-01-08
JPS591433A (ja) 1984-01-06
DE3366426D1 (en) 1986-10-30
EP0098395A2 (en) 1984-01-18

Similar Documents

Publication Publication Date Title
IT8023241A0 (it) Processo di separazione selettiva di idrogeno solforato da miscele gassose contenenti anche anidride carbonica.
PT81190B (pt) Processo para o isolamento e purificacao de podofilotoxina
NZ218019A (en) Removing acid gases from hydrocarbon streams by treatment with an alkanolamine
EP0265524A4 (en) PROCESS FOR REMOVING IMPURITIES FROM A POLYPHENYLENE SULFIDE RESIN.
DE3169877D1 (en) Process for eliminating acid gases, especially carbon dioxyde, from gaseous mixtures
ES8500205A1 (es) Procedimiento para la purificacion de n-metilpirrolidona.
ES8404699A1 (es) Procedimiento para endurecer una resina de poli(sulfuro de arileno).
ES8402868A1 (es) "procedimiento criogenico para la remocion de gases acidicos de mezclas de gases que los contengan".
KR910000582A (ko) N-메틸-2-피롤리돈의 정제방법
DE3560294D1 (en) Process for the preparation of a poly(phenylene ether) protected against molecular-weight degradation
AU1514788A (en) Process for the elimination of radioactivity from effluents
DE3166845D1 (en) Somatostatin or somatostatin precursors
EP0103276A3 (en) Process for stabilising poly(phenylene ether) solutions
ES8204607A1 (es) Procedimiento y dispositivo para la condensacion mixta en instalaciones evaporadoras de varias etapas para la cocentra- cion de soluciones salinas y-o suspensiones de materiales.
ES8205419A1 (es) Procedimiento y aparato para la recuperacion de vapores
ES8101909A1 (es) Un procedimiento de eliminacion de modo continuo del hidro- geno sulfurado de corrientes gaseosas
AU560244B2 (en) Removal of hydrogen sulphide from gaseous mixtures
DE3464621D1 (en) Stabilization of poly(arylene sulfides)
DE3069127D1 (en) Process for the removal of acid and acid precursor gases and vapors from gas streams
HUT40599A (en) Process for production of 1,2-dibrom-tetrafluor-ethan
IT1261700B (it) Procedimento per la separazione di miscugli di m- e p-diclorobenzene
JPS5262309A (en) Purification of waste oil
AU565592B2 (en) Removal of hydrogen sulphide from gaseous streams
RO88225B (ro) Procedeu de epurare a apelor reziduale provenite de la fabricarea polistirenului
ES8406401A1 (es) Un procedimiento para la preparacion de derivados organicos nitrados alifaticos o aromaticos.

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970303