FR2159180A1 - Epsilon caprolactam purificn - by crystallisation from aromatic solvent and distillation - Google Patents

Epsilon caprolactam purificn - by crystallisation from aromatic solvent and distillation

Info

Publication number
FR2159180A1
FR2159180A1 FR7140161A FR7140161A FR2159180A1 FR 2159180 A1 FR2159180 A1 FR 2159180A1 FR 7140161 A FR7140161 A FR 7140161A FR 7140161 A FR7140161 A FR 7140161A FR 2159180 A1 FR2159180 A1 FR 2159180A1
Authority
FR
France
Prior art keywords
crystallisation
distillation
purificn
aromatic solvent
epsilon caprolactam
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.)
Granted
Application number
FR7140161A
Other languages
English (en)
French (fr)
Other versions
FR2159180B1 (de
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
Priority to DE19702023344 priority Critical patent/DE2023344A1/de
Priority to CA127,089A priority patent/CA964656A/en
Application filed by Bayer AG filed Critical Bayer AG
Priority to FR7140161A priority patent/FR2159180A1/fr
Publication of FR2159180A1 publication Critical patent/FR2159180A1/fr
Application granted granted Critical
Publication of FR2159180B1 publication Critical patent/FR2159180B1/fr
Granted 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)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR7140161A 1970-05-13 1971-11-09 Epsilon caprolactam purificn - by crystallisation from aromatic solvent and distillation Granted FR2159180A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19702023344 DE2023344A1 (de) 1970-05-13 1970-05-13 Verfahren zur Reinigung von Caprolactam
CA127,089A CA964656A (en) 1970-05-13 1971-11-08 Process for the purification of caprolactam
FR7140161A FR2159180A1 (en) 1970-05-13 1971-11-09 Epsilon caprolactam purificn - by crystallisation from aromatic solvent and distillation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19702023344 DE2023344A1 (de) 1970-05-13 1970-05-13 Verfahren zur Reinigung von Caprolactam
FR7140161A FR2159180A1 (en) 1970-05-13 1971-11-09 Epsilon caprolactam purificn - by crystallisation from aromatic solvent and distillation

Publications (2)

Publication Number Publication Date
FR2159180A1 true FR2159180A1 (en) 1973-06-22
FR2159180B1 FR2159180B1 (de) 1976-03-26

Family

ID=25759133

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7140161A Granted FR2159180A1 (en) 1970-05-13 1971-11-09 Epsilon caprolactam purificn - by crystallisation from aromatic solvent and distillation

Country Status (3)

Country Link
CA (1) CA964656A (de)
DE (1) DE2023344A1 (de)
FR (1) FR2159180A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7505130A (nl) * 1975-05-01 1976-11-03 Stamicarbon Werkwijze voor de winning van zuiver epsilon- -caprolactam uit een waterige oplossing hiervan.
TW215084B (en) * 1992-04-17 1993-10-21 Sumitomo Chemical Co Process for producing a high purity caprolactam

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1490312A (fr) * 1965-09-11 1967-07-28 Zimmer Ag Hans J Procédé perfectionné de purification de l'epsilon-caprolactame

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1490312A (fr) * 1965-09-11 1967-07-28 Zimmer Ag Hans J Procédé perfectionné de purification de l'epsilon-caprolactame

Also Published As

Publication number Publication date
DE2023344A1 (de) 1971-11-25
CA964656A (en) 1975-03-18
FR2159180B1 (de) 1976-03-26

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Legal Events

Date Code Title Description
ST Notification of lapse