ATE143283T1 - Mehrstufige umkristallisation zum reinigen kristallisierbare stoffe - Google Patents

Mehrstufige umkristallisation zum reinigen kristallisierbare stoffe

Info

Publication number
ATE143283T1
ATE143283T1 AT92111357T AT92111357T ATE143283T1 AT E143283 T1 ATE143283 T1 AT E143283T1 AT 92111357 T AT92111357 T AT 92111357T AT 92111357 T AT92111357 T AT 92111357T AT E143283 T1 ATE143283 T1 AT E143283T1
Authority
AT
Austria
Prior art keywords
recristallization
purifying
crystallizable substances
transfers
controlling
Prior art date
Application number
AT92111357T
Other languages
English (en)
Inventor
Kenneth F Griffiths
Original Assignee
Kenneth F Griffiths
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 Kenneth F Griffiths filed Critical Kenneth F Griffiths
Application granted granted Critical
Publication of ATE143283T1 publication Critical patent/ATE143283T1/de

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
    • 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
    • B01D9/0063—Control or regulation
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/12—Halides
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B7/00—Single-crystal growth from solutions using solvents which are liquid at normal temperature, e.g. aqueous solutions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Detergent Compositions (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
AT92111357T 1988-07-28 1992-07-03 Mehrstufige umkristallisation zum reinigen kristallisierbare stoffe ATE143283T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US22530488A 1988-07-28 1988-07-28
CA002072820A CA2072820A1 (en) 1988-07-28 1992-06-30 Multistage recrystallization for superpurifying crystallizable substances
EP92111357A EP0576718B1 (de) 1988-07-28 1992-07-03 Mehrstufige Umkristallisation zum Reinigen kristallisierbare Stoffe

Publications (1)

Publication Number Publication Date
ATE143283T1 true ATE143283T1 (de) 1996-10-15

Family

ID=27169120

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92111357T ATE143283T1 (de) 1988-07-28 1992-07-03 Mehrstufige umkristallisation zum reinigen kristallisierbare stoffe

Country Status (5)

Country Link
EP (1) EP0576718B1 (de)
AT (1) ATE143283T1 (de)
CA (1) CA2072820A1 (de)
DE (1) DE69214134T2 (de)
ES (1) ES2095986T3 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5466266A (en) * 1993-06-17 1995-11-14 Griffiths; Kenneth F. Closed system multistage superpurification recrystallization
CN111498929B (zh) * 2020-04-20 2023-08-22 内蒙古久科康瑞环保科技有限公司 分级结晶系统和分级结晶方法
CN119588001A (zh) * 2025-02-10 2025-03-11 中稀(寿光)资源科技有限公司 一种稀土氯化物清洁化生产系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3561225A (en) * 1968-08-26 1971-02-09 Phillips Petroleum Co Apparatus and process for 4-step separation of a crystallizable component of a mixed feedstock
US4885016A (en) * 1988-08-31 1989-12-05 Griffiths Kenneth F Multistage fractional freezing for superpurifying crystallizable substances

Also Published As

Publication number Publication date
DE69214134D1 (de) 1996-10-31
CA2072820A1 (en) 1993-12-31
EP0576718B1 (de) 1996-09-25
ES2095986T3 (es) 1997-03-01
DE69214134T2 (de) 1997-04-30
EP0576718A1 (de) 1994-01-05

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