JPS55127433A - Recovery of nonnreacted pyrrolydone on pyrrolidone polymerization - Google Patents

Recovery of nonnreacted pyrrolydone on pyrrolidone polymerization

Info

Publication number
JPS55127433A
JPS55127433A JP1345880A JP1345880A JPS55127433A JP S55127433 A JPS55127433 A JP S55127433A JP 1345880 A JP1345880 A JP 1345880A JP 1345880 A JP1345880 A JP 1345880A JP S55127433 A JPS55127433 A JP S55127433A
Authority
JP
Japan
Prior art keywords
nonnreacted
pyrrolydone
recovery
pyrrolidone polymerization
pyrrolidone
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.)
Pending
Application number
JP1345880A
Other languages
English (en)
Inventor
Ii Anshiyusu Bairon
Katsumoto Kiyoshi
Maaku Saakesu Ira
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.)
Chevron USA Inc
Original Assignee
Chevron Research and Technology 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 Chevron Research and Technology Co filed Critical Chevron Research and Technology Co
Publication of JPS55127433A publication Critical patent/JPS55127433A/ja
Pending 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Pyrrole Compounds (AREA)
  • Polyamides (AREA)
JP1345880A 1976-11-26 1980-02-06 Recovery of nonnreacted pyrrolydone on pyrrolidone polymerization Pending JPS55127433A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/745,501 US4050994A (en) 1976-11-26 1976-11-26 Recovery of 2-pyrrolidone from dilute alkaline solutions

Publications (1)

Publication Number Publication Date
JPS55127433A true JPS55127433A (en) 1980-10-02

Family

ID=24996941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1345880A Pending JPS55127433A (en) 1976-11-26 1980-02-06 Recovery of nonnreacted pyrrolydone on pyrrolidone polymerization

Country Status (6)

Country Link
US (1) US4050994A (ja)
JP (1) JPS55127433A (ja)
BE (1) BE861117A (ja)
CA (1) CA1061792A (ja)
ES (1) ES472808A1 (ja)
GB (1) GB1592179A (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4187370A (en) * 1977-04-29 1980-02-05 Chevron Research Company Polymerization and recovery of 2-pyrrolidone with acid treatment
NL7713349A (nl) * 1977-12-02 1979-06-06 Stamicarbon Werkwijze voor het winnen van 2-pyrrolidon.
NL8003365A (nl) * 1980-06-10 1982-01-04 Stamicarbon Werkwijze voor het zuiveren van 2-pyrrolidon.
US4994252A (en) * 1990-02-09 1991-02-19 Dowelanco Removal of potassium chloride from solvents

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3288687A (en) * 1966-11-29 Process for the purification of epsilon- caprolactam by dilution, acidulation and distillation
US3248388A (en) * 1957-09-23 1966-04-26 Syntex Corp 6alpha-fluoro-delta1, 4-pregnadien-16alpha, 17alpha, 21-triol-3, 20-diones and intermediates in the production thereof
US2939869A (en) * 1958-01-27 1960-06-07 Minnesota Mining & Mfg Pyrrolidone purification
DE1295556B (de) * 1963-11-30 1969-05-22 Basf Ag Verfahren zur Reinigung von Pyrrolidon-(2)
US3597330A (en) * 1967-04-27 1971-08-03 Basf Ag Recovery of epsilon-caprolactone and alkane dicarboxylic acid by acid treatment and vacuum distillation
US3681293A (en) * 1970-09-03 1972-08-01 Radiation Res Corp Continuous polymerization of 2-pyrrolidone with carbon dioxide as activator
IT956395B (it) * 1972-06-09 1973-10-10 Montedison Spa Procedimento per la polimerizzazio ne anionica del pirrolidone
US3968087A (en) * 1972-11-24 1976-07-06 Chevron Research Company Polymerization of 2-pyrrolidone

Also Published As

Publication number Publication date
ES472808A1 (es) 1979-04-01
BE861117A (fr) 1978-03-16
GB1592179A (en) 1981-07-01
US4050994A (en) 1977-09-27
CA1061792A (en) 1979-09-04

Similar Documents

Publication Publication Date Title
JPS56112913A (en) Solid catalst for alphaaolefin polymerization
ZA77819B (en) Polymerization process
ZA7719B (en) Hydrogenated polymers
JPS5378293A (en) Copolymer
JPS52109592A (en) Aromaticcaliphatic copolymer
JPS52134695A (en) Copolymer latexs
JPS52114695A (en) Esterramide copolymer
PH13746A (en) Novel polymerization catalyst
JPS52121690A (en) Multiistage polymer
GB1543064A (en) Scaffolding
JPS5291100A (en) Polysiloxaneepolycarbodiimido copolymer
JPS5356246A (en) Ethyleneetrifluoroethylene copolymers solution
GB1554444A (en) Polymerization of -olefin monomers
IL49777A0 (en) Accelerometer
GB1555281A (en) Accelerometer
JPS5352555A (en) Selffextinguishable polymers
JPS52113313A (en) Recovering of cronium
JPS55127433A (en) Recovery of nonnreacted pyrrolydone on pyrrolidone polymerization
JPS5295686A (en) Recovery of epsilonn caprolactam
AU2660877A (en) Polyalphamethylstyrene-polydiorganosiloxane block copolymers
JPS5334892A (en) Curable copolymers
JPS532586A (en) Suspension polymerization
JPS52140598A (en) Polymerization method of 22pyrrolydone
JPS5328354A (en) Integrator
JPS5358590A (en) Polymerization initiator