FR2111820A3 - Caprolactam purification - from 5-hydroxyhexane-nitrile by fractional crystallisation from melt or soln or by selective extra - Google Patents

Caprolactam purification - from 5-hydroxyhexane-nitrile by fractional crystallisation from melt or soln or by selective extra

Info

Publication number
FR2111820A3
FR2111820A3 FR7138192A FR7138192A FR2111820A3 FR 2111820 A3 FR2111820 A3 FR 2111820A3 FR 7138192 A FR7138192 A FR 7138192A FR 7138192 A FR7138192 A FR 7138192A FR 2111820 A3 FR2111820 A3 FR 2111820A3
Authority
FR
France
Prior art keywords
esp
fractional crystallisation
cyclohexane
hydroxyhexane
soln
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
FR7138192A
Other languages
English (en)
Other versions
FR2111820B3 (fr
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.)
BP Chemicals Ltd
Original Assignee
BP Chemicals Ltd
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 BP Chemicals Ltd filed Critical BP Chemicals Ltd
Publication of FR2111820A3 publication Critical patent/FR2111820A3/fr
Application granted granted Critical
Publication of FR2111820B3 publication Critical patent/FR2111820B3/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
    • C07D201/02—Preparation of lactams
    • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR7138192A 1970-10-26 1971-10-25 Caprolactam purification - from 5-hydroxyhexane-nitrile by fractional crystallisation from melt or soln or by selective extra Granted FR2111820A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5073070 1970-10-26

Publications (2)

Publication Number Publication Date
FR2111820A3 true FR2111820A3 (en) 1972-06-09
FR2111820B3 FR2111820B3 (fr) 1974-06-07

Family

ID=10457116

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7138192A Granted FR2111820A3 (en) 1970-10-26 1971-10-25 Caprolactam purification - from 5-hydroxyhexane-nitrile by fractional crystallisation from melt or soln or by selective extra

Country Status (5)

Country Link
BE (1) BE774423A (fr)
DE (1) DE2153312A1 (fr)
FR (1) FR2111820A3 (fr)
IT (1) IT953119B (fr)
NL (1) NL7114482A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW215084B (en) * 1992-04-17 1993-10-21 Sumitomo Chemical Co Process for producing a high purity caprolactam

Also Published As

Publication number Publication date
BE774423A (fr) 1972-04-25
FR2111820B3 (fr) 1974-06-07
DE2153312A1 (de) 1972-04-27
IT953119B (it) 1973-08-10
NL7114482A (fr) 1972-04-28

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Legal Events

Date Code Title Description
ST Notification of lapse