FR91012E - Procédé de purification des lactames - Google Patents

Procédé de purification des lactames

Info

Publication number
FR91012E
FR91012E FR78225A FR78225A FR91012E FR 91012 E FR91012 E FR 91012E FR 78225 A FR78225 A FR 78225A FR 78225 A FR78225 A FR 78225A FR 91012 E FR91012 E FR 91012E
Authority
FR
France
Prior art keywords
purification process
lactam
lactam purification
purification
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.)
Expired
Application number
FR78225A
Other languages
English (en)
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.)
Inventa AG fuer Forschung und Patentverwertung
Original Assignee
Inventa AG fuer Forschung und Patentverwertung
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 claimed from CH1361665A external-priority patent/CH458284A/de
Application filed by Inventa AG fuer Forschung und Patentverwertung filed Critical Inventa AG fuer Forschung und Patentverwertung
Priority to FR78225A priority Critical patent/FR91012E/fr
Application granted granted Critical
Publication of FR91012E publication Critical patent/FR91012E/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
    • C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
    • C07C37/84—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by crystallisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0036—Crystallisation on to a bed of product crystals; Seeding
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/81—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
FR78225A 1965-10-01 1966-09-29 Procédé de purification des lactames Expired FR91012E (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR78225A FR91012E (fr) 1965-10-01 1966-09-29 Procédé de purification des lactames

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1361665A CH458284A (de) 1965-10-01 1965-10-01 Verfahren zur Reinigung von organischen Substanzen
FR78225A FR91012E (fr) 1965-10-01 1966-09-29 Procédé de purification des lactames

Publications (1)

Publication Number Publication Date
FR91012E true FR91012E (fr) 1968-03-29

Family

ID=25712653

Family Applications (1)

Application Number Title Priority Date Filing Date
FR78225A Expired FR91012E (fr) 1965-10-01 1966-09-29 Procédé de purification des lactames

Country Status (1)

Country Link
FR (1) FR91012E (fr)

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