AU5655698A - Suspension crystallization method - Google Patents

Suspension crystallization method

Info

Publication number
AU5655698A
AU5655698A AU56556/98A AU5655698A AU5655698A AU 5655698 A AU5655698 A AU 5655698A AU 56556/98 A AU56556/98 A AU 56556/98A AU 5655698 A AU5655698 A AU 5655698A AU 5655698 A AU5655698 A AU 5655698A
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
AU56556/98A
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 AU5655698A publication Critical patent/AU5655698A/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
    • 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
    • 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)
  • 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)
  • Extraction Or Liquid Replacement (AREA)
AU56556/98A 1996-12-10 1997-11-27 Suspension crystallization method Abandoned AU5655698A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19651216 1996-12-10
DE19651216A DE19651216C1 (en) 1996-12-10 1996-12-10 Suspension crystallization process
PCT/EP1997/006610 WO1998025889A1 (en) 1996-12-10 1997-11-27 Suspension crystallization method

Publications (1)

Publication Number Publication Date
AU5655698A true AU5655698A (en) 1998-07-03

Family

ID=7814191

Family Applications (1)

Application Number Title Priority Date Filing Date
AU56556/98A Abandoned AU5655698A (en) 1996-12-10 1997-11-27 Suspension crystallization method

Country Status (7)

Country Link
EP (1) EP0944588A1 (en)
JP (1) JP2001505485A (en)
AU (1) AU5655698A (en)
BR (1) BR9713571A (en)
DE (1) DE19651216C1 (en)
TW (1) TW380128B (en)
WO (1) WO1998025889A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ303896B6 (en) * 2000-04-11 2013-06-12 Basf Aktiengesellschaft Purification process of crude acrylic acid melt
DE10221176A1 (en) 2002-05-13 2003-11-27 Basf Ag Process for the preparation of low-odor hydrogel-forming polymers
EP2398767B1 (en) * 2009-02-23 2015-05-13 GEA Niro PT B.V. Process for crystallizing and separating different diisocyanate isomers
EP2471585A1 (en) 2011-01-04 2012-07-04 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Apparatus and method for separating solid particles from a slurry
EP2471739A1 (en) 2011-01-04 2012-07-04 Solvay Sa Process for the purification of phosphoric acid
CN103012030B (en) * 2012-12-31 2015-04-15 浙江工业大学 Method for purifying organic mixture by static melt crystallization
WO2021032519A1 (en) 2019-08-21 2021-02-25 Basf Se Method for purification of isosorbide

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3217024A (en) * 1963-03-22 1965-11-09 Allied Chem Conversion of mixtures of 2, 4-and 2, 6-toluene diisocyanates to other mixtures of different isomer ratio
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
DE3220439A1 (en) * 1982-05-29 1983-12-01 Bayer Ag, 5090 Leverkusen METHOD FOR SEPARATING TECHNOLOGALLY PURE 2,4-DIISOCYANATOTOLUOL OR OF AN INCREASED LEVEL OF 2,4-DIISOCYANATOTOLUOL ISOMERIC MIXTURES FROM, ESSENTIALLY consisting of 2,4- and 2,6-DIISOCYANATOTOLUENE ISING
US4557741A (en) * 1984-02-13 1985-12-10 Grasso's Koniklyke Machine Fabriekon N.V. Gradient column freeze concentration system
NL8603314A (en) * 1986-12-29 1988-07-18 Grasso Koninkl Maschf METHOD AND APPARATUS FOR RECOVERING A PURE SUBSTANCE FROM A LIQUID MIXTURE BY CRYSTALLIZATION
US4787985A (en) * 1987-08-25 1988-11-29 Grenco Process Technology B.V. Multi-stage purification unit process
DE4425316A1 (en) * 1994-07-18 1996-01-25 Bayer Ag Method for cleaning water by freeze crystallisation

Also Published As

Publication number Publication date
WO1998025889A1 (en) 1998-06-18
EP0944588A1 (en) 1999-09-29
JP2001505485A (en) 2001-04-24
MX9905358A (en) 1999-12-01
BR9713571A (en) 2000-03-14
TW380128B (en) 2000-01-21
DE19651216C1 (en) 1998-08-20

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