GB1172165A - Apparatus for the Continuous Purification of Sublimable Substances - Google Patents

Apparatus for the Continuous Purification of Sublimable Substances

Info

Publication number
GB1172165A
GB1172165A GB5583/67A GB558367A GB1172165A GB 1172165 A GB1172165 A GB 1172165A GB 5583/67 A GB5583/67 A GB 5583/67A GB 558367 A GB558367 A GB 558367A GB 1172165 A GB1172165 A GB 1172165A
Authority
GB
United Kingdom
Prior art keywords
chamber
crystals
baffle
enclosure
cylinder
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.)
Expired
Application number
GB5583/67A
Inventor
Jacqueline Balaskovic
Michel Gerard
Joseph Itier
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB1172165A publication Critical patent/GB1172165A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G43/00—Compounds of uranium
    • C01G43/04—Halides of uranium
    • C01G43/06—Fluorides
    • C01G43/063—Hexafluoride (UF6)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D7/00—Sublimation
    • B01D7/02—Crystallisation directly from the vapour phase
    • 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
    • B01D9/005—Selection of auxiliary, e.g. for control of crystallisation nuclei, of crystal growth, of adherence to walls; Arrangements for introduction thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

1,172,165. Purification of sublimable materials. COMMISSARIAT A L'ENERGIE ATOMIQUE. 6 Feb., 1967 [9 Feb., 1966], No. 5583/67. Heading BIB. [Also in Division C1] A sublimable material, e.g. uranium hexafluoride, in the form of vapour which contains gaseous impurities is purified by introducing the vapour through pipe 14 into a cooled chamber 1 which is mounted above an airlock chamber 2 leading down to a sublimation enclosure 3 heated by electrical resistance 13. The walls of chamber 1 are cooled by jacket 4, and the vapours of the sublimable material solidify in the form of crystals on the cooled walls, while the impurities remain in the gaseous state and are discharged through pipe 15. Periodically, the crystals are detached from the walls of chamber 1 by scrapers 7 which are connected to cylinder 5 and moved up or down by a pneumatic motor and a control rod 6. Bellows 9 provide sealing-tightness and allow movement to be transmitted to rod 6. The detached crystals drop into the inlet of airlock chamber 2, which has an upper baffle 10 and a lower baffle 11, the baffle system being rigidly connected to cylinder 5. Baffles 10 and 11 are mutually displaceable by two springs inside the baffle structure (Figures 2 to 5, not shown). The arrangement is such that the crystals enter chamber 2 only when baffle 11 has closed the sublimation enclosure 3; and the crystals drop into enclosure 3 when baffle 10 has closed the chamber 1. The crystals are sublimed in enclosure 3, and the purified vapour leaves the apparatus through pipe 16. Valves (not shown) disposed in pipes 14, 15, 16 enable the pressures inside chamber 1 and enclosure 3 to be controlled. Cylinder 5 has an internal heating device 8 to prevent crystallization on its surface.
GB5583/67A 1966-02-09 1967-02-06 Apparatus for the Continuous Purification of Sublimable Substances Expired GB1172165A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR48889A FR1474891A (en) 1966-02-09 1966-02-09 Apparatus ensuring the continuous purification of a gas by crystallization

Publications (1)

Publication Number Publication Date
GB1172165A true GB1172165A (en) 1969-11-26

Family

ID=8600869

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5583/67A Expired GB1172165A (en) 1966-02-09 1967-02-06 Apparatus for the Continuous Purification of Sublimable Substances

Country Status (6)

Country Link
BE (1) BE692975A (en)
CH (1) CH468202A (en)
DE (1) DE1967249U (en)
FR (1) FR1474891A (en)
GB (1) GB1172165A (en)
LU (1) LU52916A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4970099A (en) * 1972-11-06 1974-07-06
US4060391A (en) * 1975-12-19 1977-11-29 Ultra-Centrifuge Nederland N.V. Apparatus for precipitating and separating a material in a solid form from a gaseous mixture
JPS52151694A (en) * 1977-06-20 1977-12-16 Hiroshi Ishizuka Refining apparatus of zirconium tetrachloride
RU2495701C1 (en) * 2012-07-27 2013-10-20 Открытое акционерное общество "УРАЛЬСКИЙ ЭЛЕКТРОХИМИЧЕСКИЙ КОМБИНАТ" Desublimator
CN105561668A (en) * 2014-11-07 2016-05-11 中国石油天然气股份有限公司 Filter for removing oligomer from liquid material and filtering method
WO2016119781A1 (en) * 2015-01-30 2016-08-04 Kelvion Gmbh Discontinuously operating desublimator for separating products from gas mixtures
CN106748702A (en) * 2017-01-17 2017-05-31 湖北开元化工科技股份有限公司 The equipment that a kind of sublimed method produces 1,4-benzoquinone

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59306742D1 (en) * 1993-03-03 1997-07-17 Ciba Geigy Ag Device for producing crystal nuclei in melts and a crystallization system containing such a device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4970099A (en) * 1972-11-06 1974-07-06
US4060391A (en) * 1975-12-19 1977-11-29 Ultra-Centrifuge Nederland N.V. Apparatus for precipitating and separating a material in a solid form from a gaseous mixture
JPS52151694A (en) * 1977-06-20 1977-12-16 Hiroshi Ishizuka Refining apparatus of zirconium tetrachloride
JPS553294B2 (en) * 1977-06-20 1980-01-24
RU2495701C1 (en) * 2012-07-27 2013-10-20 Открытое акционерное общество "УРАЛЬСКИЙ ЭЛЕКТРОХИМИЧЕСКИЙ КОМБИНАТ" Desublimator
CN105561668B (en) * 2014-11-07 2020-08-07 中国石油天然气股份有限公司 Filter for removing oligomer from liquid material and filtering method
CN105561668A (en) * 2014-11-07 2016-05-11 中国石油天然气股份有限公司 Filter for removing oligomer from liquid material and filtering method
WO2016119781A1 (en) * 2015-01-30 2016-08-04 Kelvion Gmbh Discontinuously operating desublimator for separating products from gas mixtures
CN107206287A (en) * 2015-01-30 2017-09-26 克尔维安有限公司 It is discontinuously working, for the device of sublimating from admixture of gas separation product
CN107206287B (en) * 2015-01-30 2020-01-31 克尔维安德国有限公司 Discontinuously operating desublimators and desublimator systems
US10857481B2 (en) 2015-01-30 2020-12-08 Kelvion Germany Gmbh Discontinuously operating desublimator for the separation of products out of gas mixtures
CN106748702A (en) * 2017-01-17 2017-05-31 湖北开元化工科技股份有限公司 The equipment that a kind of sublimed method produces 1,4-benzoquinone
CN106748702B (en) * 2017-01-17 2023-09-01 湖北开元化工科技股份有限公司 Equipment for producing p-benzoquinone by sublimation method

Also Published As

Publication number Publication date
CH468202A (en) 1969-02-15
FR1474891A (en) 1967-03-31
DE1967249U (en) 1967-08-31
BE692975A (en) 1967-07-03
LU52916A1 (en) 1967-04-03

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees