CA2183774A1 - Procede de cristallisation de substances chimiques - Google Patents

Procede de cristallisation de substances chimiques

Info

Publication number
CA2183774A1
CA2183774A1 CA002183774A CA2183774A CA2183774A1 CA 2183774 A1 CA2183774 A1 CA 2183774A1 CA 002183774 A CA002183774 A CA 002183774A CA 2183774 A CA2183774 A CA 2183774A CA 2183774 A1 CA2183774 A1 CA 2183774A1
Authority
CA
Canada
Prior art keywords
particles
container
molten mass
process according
molten
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
CA002183774A
Other languages
English (en)
Inventor
Axel Konig
Joachim Ulrich
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.)
Santrade Ltd
Original Assignee
Individual
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 DE4445880A external-priority patent/DE4445880A1/de
Application filed by Individual filed Critical Individual
Publication of CA2183774A1 publication Critical patent/CA2183774A1/fr
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
    • B01D9/0036—Crystallisation on to a bed of product crystals; Seeding

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fertilizers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Glanulating (AREA)

Abstract

Selon un procédé de cristallisation de substances chimiques, celles-ci sont d'abord fondues et introduites dans un récipient dans lequel elles se cristallisent par extraction de chaleur, puis traversent le récipient et sont prélevées sous forme d'un produit. Le procédé se caractérise en ce que l'on répartit uniformément dans le récipient de petites particules, notamment de la même taille, au moins en partie solides. La masse fondue se cristallise sur ces particules pendant qu'elles sont transportées à travers le récipient. L'invention sert à produire des engrais en pastilles.
CA002183774A 1994-12-22 1995-11-30 Procede de cristallisation de substances chimiques Abandoned CA2183774A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEP4445880.0 1994-12-22
DE4445880A DE4445880A1 (de) 1994-12-22 1994-12-22 Verfahren zum Reinigen chemischer Substanzen
DE19507316A DE19507316A1 (de) 1994-12-22 1995-03-02 Verfahren zur Kristallisation chemischer Substanzen
DE19507316.9 1995-03-02

Publications (1)

Publication Number Publication Date
CA2183774A1 true CA2183774A1 (fr) 1996-06-27

Family

ID=25943149

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002183774A Abandoned CA2183774A1 (fr) 1994-12-22 1995-11-30 Procede de cristallisation de substances chimiques

Country Status (7)

Country Link
EP (1) EP0746535A1 (fr)
JP (1) JPH10500066A (fr)
KR (1) KR970701162A (fr)
AU (1) AU4300596A (fr)
CA (1) CA2183774A1 (fr)
DE (1) DE19507316A1 (fr)
WO (1) WO1996019421A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6242639B1 (en) 1996-09-13 2001-06-05 Basf Aktiengesellschaft Preparation of neopentyl glycol hydroxyprivalate granules

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2006237137B8 (en) * 2005-04-18 2011-12-22 Stamicarbon B.V. Process for the production of urea-comprising particles
US7985393B2 (en) * 2009-03-31 2011-07-26 Uop Llc Pastillation of ammonium sulfate nitrate
CN111558332A (zh) * 2020-03-27 2020-08-21 浙江三圣科技有限公司 一种大颗粒复合肥造粒成型装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1592796B2 (de) * 1963-05-22 1973-04-26 Verenigde Kunstmestfabneken Mekog Albatros N V , Utrecht (Niederlande) Duengemittel mit einem ueberzug aus kohlenwasserstoffen
DE1792150A1 (de) * 1968-07-27 1971-10-14 Chemie Appbau Mainz Schmahl & Verfahren zur Herstellung von schwefelhaltigen Duengemittel-Granulaten mit einer harten,abriebfesten Oberflaechenschicht
DE1941460C3 (de) * 1969-08-14 1973-10-04 Gebr. Kaiser, 4150 Krefeld-Uerdingen Verfahren und Vorrichtung zur Er zeugung von Granalien aus einer in einer in einer Schmelzgutwanne befindlichen Schmelze
US4857098A (en) * 1987-08-11 1989-08-15 Pursell Industries Sulfur-coated fertilizer granules and process of making same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6242639B1 (en) 1996-09-13 2001-06-05 Basf Aktiengesellschaft Preparation of neopentyl glycol hydroxyprivalate granules

Also Published As

Publication number Publication date
JPH10500066A (ja) 1998-01-06
KR970701162A (ko) 1997-03-17
AU4300596A (en) 1996-07-10
EP0746535A1 (fr) 1996-12-11
WO1996019421A1 (fr) 1996-06-27
DE19507316A1 (de) 1996-09-05

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Dead