BE776978A - Procede de purification de caprolactame - Google Patents

Procede de purification de caprolactame

Info

Publication number
BE776978A
BE776978A BE776978A BE776978A BE776978A BE 776978 A BE776978 A BE 776978A BE 776978 A BE776978 A BE 776978A BE 776978 A BE776978 A BE 776978A BE 776978 A BE776978 A BE 776978A
Authority
BE
Belgium
Prior art keywords
purification process
caprolactam purification
caprolactam
purification
Prior art date
Application number
BE776978A
Other languages
English (en)
Original Assignee
Inventa Ag
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 Inventa Ag filed Critical Inventa Ag
Publication of BE776978A publication Critical patent/BE776978A/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/16—Separation or purification
BE776978A 1970-12-22 1971-12-20 Procede de purification de caprolactame BE776978A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1893270A CH549020A (de) 1970-12-22 1970-12-22 Verfahren zur reinigung von lactamen.

Publications (1)

Publication Number Publication Date
BE776978A true BE776978A (fr) 1972-04-17

Family

ID=4436199

Family Applications (1)

Application Number Title Priority Date Filing Date
BE776978A BE776978A (fr) 1970-12-22 1971-12-20 Procede de purification de caprolactame

Country Status (9)

Country Link
US (1) US3839324A (fr)
JP (1) JPS5133917B1 (fr)
BE (1) BE776978A (fr)
CA (1) CA962220A (fr)
CH (1) CH549020A (fr)
ES (1) ES398139A1 (fr)
IT (1) IT945553B (fr)
NL (1) NL151078B (fr)
PL (1) PL88948B1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52149017U (fr) * 1976-05-10 1977-11-11
JPS52154312U (fr) * 1976-05-18 1977-11-22
NL7700234A (nl) * 1977-01-12 1978-07-14 Stamicarbon Werkwijze voor het winnen van epsilon-caprolac- tam uit epsilon-caprolactam- bevattend destil- latieresidu.
US4767503A (en) * 1983-08-29 1988-08-30 Allied Corporation Removal of light impurities from caprolactam by distillation with water
DE3729853A1 (de) * 1987-09-05 1989-03-23 Basf Ag Verfahren zur aufarbeitung von destillationsrueckstaenden, die bei der reinigung von caprolactam anfallen
JP4182273B2 (ja) * 2000-06-27 2008-11-19 住友化学株式会社 ε−カプロラクタムの製造方法
DE60239205D1 (de) * 2001-08-27 2011-03-31 Dsm Ip Assets Bv Verfahren zur wiedergewinnung von caprolactam aus wässrigem caprolactam-produkt mit anwendung von einem in situ hergestellten alkalisalz der aminocapronsäure
DE10225692A1 (de) * 2002-06-10 2003-12-24 Zimmer Ag Verfahren zur Herstellung von Caprolactam aus Polyamid-haltigen Abfällen
DE10333538B4 (de) * 2003-07-23 2008-04-10 Lurgi Zimmer Gmbh Verfahren zur Behandlung Polyamid-haltiger Abfälle mit der Wiederaufbereitung des Depolymerisationsrückstandes
CN101070298B (zh) * 2006-05-12 2012-01-25 中国石油化工股份有限公司 一种ε-己内酰胺的提纯精制方法
US7807826B2 (en) * 2007-10-02 2010-10-05 Evonik Degussa Gmbh Purification of a crude lactam mixture by means of melt crystallization
CN105601462B (zh) * 2016-02-19 2017-08-25 国药集团化学试剂有限公司 一种高纯苯提纯方法
CN109574928A (zh) * 2017-09-29 2019-04-05 中国石油化工股份有限公司 一种精制环己酮肟气相重排产物的方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3145198A (en) * 1964-08-18 piija
US2221369A (en) * 1940-11-12 Process foe producing lactams
US2752336A (en) * 1956-06-26 For the pu
US2313026A (en) * 1939-02-13 1943-03-02 Schlack Paul Process for the manufacture of lactams from oximes of cyclic ketones
US2818858A (en) * 1954-03-12 1958-01-07 Old Dominion Res And Dev Corp Underwater breathing apparatus
US3359260A (en) * 1964-12-30 1967-12-19 Union Carbide Corp Purification of epsilon-caprolactams
CH450433A (de) * 1965-06-15 1968-01-31 Inventa Ag Verfahren zur Reinigung von Lactamen
FR1504604A (fr) * 1965-10-01 1967-12-08 Huels Chemische Werke Ag Procédé pour la préparation en continu de lactame laurique en phase liquide

Also Published As

Publication number Publication date
NL7117473A (fr) 1972-06-26
CA962220A (en) 1975-02-04
NL151078B (nl) 1976-10-15
PL88948B1 (fr) 1976-10-30
DE2163258B2 (de) 1975-07-31
ES398139A1 (es) 1974-08-01
US3839324A (en) 1974-10-01
JPS5133917B1 (fr) 1976-09-22
IT945553B (it) 1973-05-10
DE2163258A1 (de) 1972-06-29
CH549020A (de) 1974-05-15

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