DE2641478A1 - Reinigung von caprolactam - Google Patents

Reinigung von caprolactam

Info

Publication number
DE2641478A1
DE2641478A1 DE19762641478 DE2641478A DE2641478A1 DE 2641478 A1 DE2641478 A1 DE 2641478A1 DE 19762641478 DE19762641478 DE 19762641478 DE 2641478 A DE2641478 A DE 2641478A DE 2641478 A1 DE2641478 A1 DE 2641478A1
Authority
DE
Germany
Prior art keywords
caprolactam
toluene
permanganate
added
potassium permanganate
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.)
Withdrawn
Application number
DE19762641478
Other languages
German (de)
English (en)
Inventor
Harry Dr Danziger
Otto Dr Immel
Bernd-Ulrich Dr Kaiser
Guido Dr Rampart
Hans-Helmut Dr Schwarz
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Priority to DE19762641478 priority Critical patent/DE2641478A1/de
Priority to DD20097577A priority patent/DD132128A5/xx
Priority to GB3810777A priority patent/GB1529559A/en
Priority to BR7706142A priority patent/BR7706142A/pt
Priority to ES462353A priority patent/ES462353A1/es
Priority to JP11005077A priority patent/JPS5337687A/ja
Priority to NL7710151A priority patent/NL7710151A/xx
Priority to FR7727926A priority patent/FR2364905A1/fr
Priority to BE180918A priority patent/BE858713A/xx
Publication of DE2641478A1 publication Critical patent/DE2641478A1/de
Priority to US05/915,732 priority patent/US4148792A/en
Withdrawn legal-status Critical Current

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)
  • Other In-Based Heterocyclic Compounds (AREA)
  • Pyrrole Compounds (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyamides (AREA)
DE19762641478 1976-09-15 1976-09-15 Reinigung von caprolactam Withdrawn DE2641478A1 (de)

Priority Applications (10)

Application Number Priority Date Filing Date Title
DE19762641478 DE2641478A1 (de) 1976-09-15 1976-09-15 Reinigung von caprolactam
DD20097577A DD132128A5 (de) 1976-09-15 1977-09-12 Verfahren zur reinigung von caprolactam
GB3810777A GB1529559A (en) 1976-09-15 1977-09-13 Purification of caprolactam
JP11005077A JPS5337687A (en) 1976-09-15 1977-09-14 Production of epsilonn caprolactam
ES462353A ES462353A1 (es) 1976-09-15 1977-09-14 Procedimiento para la purificacion de epsilon-caprolactama.
BR7706142A BR7706142A (pt) 1976-09-15 1977-09-14 Processo para a purificacao de caprolactama
NL7710151A NL7710151A (nl) 1976-09-15 1977-09-15 Werkwijze voor het zuiveren van epsilon-capro- lactam.
FR7727926A FR2364905A1 (fr) 1976-09-15 1977-09-15 Nouveau procede de purification du e-caprolactame
BE180918A BE858713A (fr) 1976-09-15 1977-09-15 Purification du epsilon-caprolactame
US05/915,732 US4148792A (en) 1976-09-15 1978-06-15 Purification of caprolactam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762641478 DE2641478A1 (de) 1976-09-15 1976-09-15 Reinigung von caprolactam

Publications (1)

Publication Number Publication Date
DE2641478A1 true DE2641478A1 (de) 1978-03-23

Family

ID=5987958

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762641478 Withdrawn DE2641478A1 (de) 1976-09-15 1976-09-15 Reinigung von caprolactam

Country Status (9)

Country Link
JP (1) JPS5337687A (pt)
BE (1) BE858713A (pt)
BR (1) BR7706142A (pt)
DD (1) DD132128A5 (pt)
DE (1) DE2641478A1 (pt)
ES (1) ES462353A1 (pt)
FR (1) FR2364905A1 (pt)
GB (1) GB1529559A (pt)
NL (1) NL7710151A (pt)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010271A1 (de) * 1978-10-17 1980-04-30 BASF Aktiengesellschaft Kristallisationsverfahren zur Reinigung von Rohcaprolactam
EP0570110A1 (en) * 1992-04-17 1993-11-18 Sumitomo Chemical Company, Limited Process for producing a high purity caprolactam

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1397132A (fr) * 1963-05-22 1965-04-30 Halcon International Inc Procédé chimique de purification de lactames
FR1445047A (fr) * 1964-08-18 1966-07-08 Zimmer Verfahrenstechnik Procédé de purification du caprolactame par oxydation

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010271A1 (de) * 1978-10-17 1980-04-30 BASF Aktiengesellschaft Kristallisationsverfahren zur Reinigung von Rohcaprolactam
US4248781A (en) * 1978-10-17 1981-02-03 Basf Aktiengesellschaft Purification of crude caprolactam
EP0570110A1 (en) * 1992-04-17 1993-11-18 Sumitomo Chemical Company, Limited Process for producing a high purity caprolactam
US5362870A (en) * 1992-04-17 1994-11-08 Sumitomo Chemical Company, Ltd. Process for producing a high purity caprolactam
US5459261A (en) * 1992-04-17 1995-10-17 Sumitomo Chemical Company, Limited Process for producing a high purity caprolactam
US5525725A (en) * 1992-04-17 1996-06-11 Sumitomo Chemical Company, Limited Process for producing a high purity caprolactam

Also Published As

Publication number Publication date
DD132128A5 (de) 1978-08-30
GB1529559A (en) 1978-10-25
ES462353A1 (es) 1978-06-16
BR7706142A (pt) 1978-07-04
NL7710151A (nl) 1978-03-17
JPS5337687A (en) 1978-04-06
BE858713A (fr) 1978-03-15
FR2364905B1 (pt) 1981-11-27
FR2364905A1 (fr) 1978-04-14

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: C07D201/16

8130 Withdrawal