AU5655798A - Suspension crystallization method - Google Patents

Suspension crystallization method

Info

Publication number
AU5655798A
AU5655798A AU56557/98A AU5655798A AU5655798A AU 5655798 A AU5655798 A AU 5655798A AU 56557/98 A AU56557/98 A AU 56557/98A AU 5655798 A AU5655798 A AU 5655798A AU 5655798 A AU5655798 A AU 5655798A
Authority
AU
Australia
Prior art keywords
crystallization method
suspension crystallization
suspension
crystallization
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.)
Abandoned
Application number
AU56557/98A
Inventor
Rudiger Drope
Dieter Grenner
Hartmut Hetzel
Hans-Peter Schal
Gerhard Wegener
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
Publication of AU5655798A publication Critical patent/AU5655798A/en
Abandoned legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/18—Separation; Purification; Stabilisation; Use of additives
    • C07C263/20—Separation; Purification
    • 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
    • B01D9/004—Fractional crystallisation; Fractionating or rectifying columns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/004—Fractional crystallisation; Fractionating or rectifying columns
    • B01D9/0045—Washing of crystals, e.g. in wash columns
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
AU56557/98A 1996-12-10 1997-11-27 Suspension crystallization method Abandoned AU5655798A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19651215 1996-12-10
DE19651215A DE19651215C1 (en) 1996-12-10 1996-12-10 Process for the separation of crystallizable isomer mixtures of organic compounds
PCT/EP1997/006611 WO1998025680A1 (en) 1996-12-10 1997-11-27 Suspension crystallization method

Publications (1)

Publication Number Publication Date
AU5655798A true AU5655798A (en) 1998-07-03

Family

ID=7814190

Family Applications (1)

Application Number Title Priority Date Filing Date
AU56557/98A Abandoned AU5655798A (en) 1996-12-10 1997-11-27 Suspension crystallization method

Country Status (7)

Country Link
EP (1) EP0944418A1 (en)
JP (1) JP2001506539A (en)
AU (1) AU5655798A (en)
BR (1) BR9714138A (en)
DE (1) DE19651215C1 (en)
TW (1) TW386987B (en)
WO (1) WO1998025680A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2573649T3 (en) * 2008-10-06 2016-06-09 Huntsman International Llc Procedure for the simultaneous production of different mixtures of diisocyanate isomers of the diphenylmethane series
EP2398767B1 (en) * 2009-02-23 2015-05-13 GEA Niro PT B.V. Process for crystallizing and separating different diisocyanate isomers
CN109970604B (en) * 2019-04-25 2021-03-19 青岛科技大学 Process for purifying 2, 4-toluene diisocyanate
CN112321560A (en) * 2020-09-18 2021-02-05 江苏科富恺机械设备有限公司 Method and system for continuously purifying L-lactide by suspension crystallization

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3777892A (en) * 1971-01-27 1973-12-11 H Thijssen Apparatus for the separation and treatment of solid particles from a liquid suspension
US3872009A (en) * 1971-06-25 1975-03-18 Henricus Alexis Corne Thijssen Apparatus for the separation and treatment of solid particles from a liquid suspension
US4314368A (en) * 1978-10-12 1982-02-02 Decoursey Calvin H Receiver for pulse code multiplexed signals
US4781899A (en) * 1984-07-27 1988-11-01 Intermountain Research & Development Corporation Purification of crystallized solids made via continuous crystallization
DE3703646C2 (en) * 1987-02-06 1995-02-09 Krupp Koppers Gmbh Process for the production of p-xylene with a purity of at least 99.5%
US4787985A (en) * 1987-08-25 1988-11-29 Grenco Process Technology B.V. Multi-stage purification unit process
DE69513799T2 (en) * 1995-03-07 2000-07-06 Waterworks International Inc Freezing thickening method and device

Also Published As

Publication number Publication date
EP0944418A1 (en) 1999-09-29
BR9714138A (en) 2000-02-29
JP2001506539A (en) 2001-05-22
DE19651215C1 (en) 1998-07-09
WO1998025680A1 (en) 1998-06-18
TW386987B (en) 2000-04-11

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