CH425724A - Process for the purification of crystallizable materials - Google Patents

Process for the purification of crystallizable materials

Info

Publication number
CH425724A
CH425724A CH1552764A CH1552764A CH425724A CH 425724 A CH425724 A CH 425724A CH 1552764 A CH1552764 A CH 1552764A CH 1552764 A CH1552764 A CH 1552764A CH 425724 A CH425724 A CH 425724A
Authority
CH
Switzerland
Prior art keywords
purification
crystallizable materials
crystallizable
materials
Prior art date
Application number
CH1552764A
Other languages
German (de)
Inventor
Barton Edmund
Original Assignee
Ici 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 Ici Ltd filed Critical Ici Ltd
Publication of CH425724A publication Critical patent/CH425724A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0004—Crystallisation cooling by heat exchange
    • B01D9/0013—Crystallisation cooling by heat exchange by indirect heat exchange
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/14—Purification; Separation; Use of additives by crystallisation; Purification or separation of the crystals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/14—The ring being saturated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CH1552764A 1963-12-03 1964-12-02 Process for the purification of crystallizable materials CH425724A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB47678/63A GB1083850A (en) 1963-12-03 1963-12-03 Purification process

Publications (1)

Publication Number Publication Date
CH425724A true CH425724A (en) 1966-12-15

Family

ID=10445886

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1552764A CH425724A (en) 1963-12-03 1964-12-02 Process for the purification of crystallizable materials

Country Status (4)

Country Link
BE (1) BE656602A (en)
CH (1) CH425724A (en)
GB (1) GB1083850A (en)
NL (1) NL6413888A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2606364C3 (en) * 1976-02-18 1988-05-26 Basf Ag, 6700 Ludwigshafen Process for separating substances from a liquid mixture by fractional crystallization
US4795571A (en) * 1987-02-20 1989-01-03 Basf Aktiengesellschaft Purification of frozen crystal layers
DE19703651A1 (en) * 1997-01-31 1998-08-06 Basf Ag Process for the purification of imidazoles and imidazole-based active substances by crystallization

Also Published As

Publication number Publication date
BE656602A (en) 1965-06-03
GB1083850A (en) 1967-09-20
NL6413888A (en) 1965-06-04

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