IT945553B - Procedimento per la purificazione di caprolattame - Google Patents

Procedimento per la purificazione di caprolattame

Info

Publication number
IT945553B
IT945553B IT54874/71A IT5487471A IT945553B IT 945553 B IT945553 B IT 945553B IT 54874/71 A IT54874/71 A IT 54874/71A IT 5487471 A IT5487471 A IT 5487471A IT 945553 B IT945553 B IT 945553B
Authority
IT
Italy
Prior art keywords
caprolactam
purification
procedure
Prior art date
Application number
IT54874/71A
Other languages
English (en)
Inventor
R Henn
B Clau
H Schultze
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
Application granted granted Critical
Publication of IT945553B publication Critical patent/IT945553B/it

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyrrole Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
IT54874/71A 1970-12-22 1971-12-20 Procedimento per la purificazione di caprolattame IT945553B (it)

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
IT945553B true IT945553B (it) 1973-05-10

Family

ID=4436199

Family Applications (1)

Application Number Title Priority Date Filing Date
IT54874/71A IT945553B (it) 1970-12-22 1971-12-20 Procedimento per la purificazione di caprolattame

Country Status (9)

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

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52149017U (it) * 1976-05-10 1977-11-11
JPS52154312U (it) * 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
US20050029086A1 (en) * 2001-08-27 2005-02-10 Groot Zevert Louise A Process for distilling alkaline caprolactam product at reduced pressure
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
US2221369A (en) * 1940-11-12 Process foe producing lactams
US2752336A (en) * 1956-06-26 For the pu
US3145198A (en) * 1964-08-18 piija
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
PL88948B1 (it) 1976-10-30
US3839324A (en) 1974-10-01
BE776978A (fr) 1972-04-17
DE2163258B2 (de) 1975-07-31
DE2163258A1 (de) 1972-06-29
JPS5133917B1 (it) 1976-09-22
CA962220A (en) 1975-02-04
NL7117473A (it) 1972-06-26
CH549020A (de) 1974-05-15
ES398139A1 (es) 1974-08-01
NL151078B (nl) 1976-10-15

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