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FR2433966A1 - CONTINUOUS WASHING COLUMN OF A CUP BED - Google Patents

CONTINUOUS WASHING COLUMN OF A CUP BED

Info

Publication number
FR2433966A1
FR2433966A1 FR7915642A FR7915642A FR2433966A1 FR 2433966 A1 FR2433966 A1 FR 2433966A1 FR 7915642 A FR7915642 A FR 7915642A FR 7915642 A FR7915642 A FR 7915642A FR 2433966 A1 FR2433966 A1 FR 2433966A1
Authority
FR
France
Prior art keywords
ice crystals
washing
aqueous
bed
aqueous solution
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.)
Granted
Application number
FR7915642A
Other languages
French (fr)
Other versions
FR2433966B1 (en
Inventor
Henricus Thijssen
Bernardus Van Der Malen
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.)
Douwe Egberts Koninklijke Tabaksfabriek Koffiebranderijen Theehandel NV
Original Assignee
Douwe Egberts Koninklijke Tabaksfabriek Koffiebranderijen Theehandel NV
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 Douwe Egberts Koninklijke Tabaksfabriek Koffiebranderijen Theehandel NV filed Critical Douwe Egberts Koninklijke Tabaksfabriek Koffiebranderijen Theehandel NV
Publication of FR2433966A1 publication Critical patent/FR2433966A1/en
Application granted granted Critical
Publication of FR2433966B1 publication Critical patent/FR2433966B1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/22—Treatment of water, waste water, or sewage by freezing
    • 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
    • B01D9/02—Crystallisation from solutions
    • B01D9/04—Crystallisation from solutions concentrating solutions by removing frozen solvent therefrom

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Physical Water Treatments (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Non-Alcoholic Beverages (AREA)
  • Centrifugal Separators (AREA)
  • Meat, Egg Or Seafood Products (AREA)

Abstract

Procédé pour la séparation des cristaux de glace contenus dans une suspension constituée par des cristaux de glace dans une solution aqueuse et le lavage de ces cristaux de glace au moyen d'un liquide de lavage aqueux, du type dans lequel un lit tassé de cristaux de glace est créé et soumis à un mouvement continu de translation, tandis qu'un front de lavage est créé à l'intérieur de ce lit tassé de cristaux de glace entre la solution aqueuse et le liquide de lavage aqueux, procédé caractérisé en ce que cette solution aqueuse et de liquide de lavage aqueux au voisinage de ce front de lavage sont pratiquement stagnants un front de lavage stable étant créé dans un plan perpendiculaire à ce déplacement en translation du lit tassé de cristaux de glace.Process for the separation of ice crystals contained in a suspension constituted by ice crystals in an aqueous solution and the washing of these ice crystals by means of an aqueous washing liquid, of the type in which a packed bed of ice crystals ice is created and subjected to a continuous translational movement, while a washing front is created inside this bed packed with ice crystals between the aqueous solution and the aqueous washing liquid, a process characterized in that this aqueous solution and aqueous washing liquid in the vicinity of this washing front are practically stagnant, a stable washing front being created in a plane perpendicular to this translational movement of the packed bed of ice crystals.

FR7915642A 1978-06-23 1979-06-19 CONTINUOUS WASHING COLUMN OF A CUP BED Expired FR2433966B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7827792 1978-06-23

Publications (2)

Publication Number Publication Date
FR2433966A1 true FR2433966A1 (en) 1980-03-21
FR2433966B1 FR2433966B1 (en) 1985-07-19

Family

ID=10498116

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7915642A Expired FR2433966B1 (en) 1978-06-23 1979-06-19 CONTINUOUS WASHING COLUMN OF A CUP BED

Country Status (12)

Country Link
JP (1) JPS5913882B2 (en)
AU (1) AU518789B2 (en)
BR (1) BR7903889A (en)
CA (1) CA1144056A (en)
CH (1) CH643150A5 (en)
DE (1) DE2923854A1 (en)
FR (1) FR2433966B1 (en)
GB (1) GB2023564B (en)
IT (1) IT1162744B (en)
NL (1) NL178392C (en)
SE (1) SE449448B (en)
ZA (1) ZA792809B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0175401A1 (en) * 1984-08-17 1986-03-26 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO Method for the separation of suspension liquid from solid particles present in suspension and washing of the packed bed of solid particles obtained counter-currently with a washing liquid

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8105872A (en) * 1981-12-28 1983-07-18 Douwe Egberts Tabaksfab WASHING COLUMN.
NL8202518A (en) * 1982-06-22 1984-01-16 Tno METHOD AND APPARATUS FOR COUNTERFLOW TREATMENT OF SUSPENDED PARTICLES WITH A LIQUID
NL8202517A (en) * 1982-06-22 1984-01-16 Tno DEVICE FOR COMPACTING A SUSPENSION.
NL8600461A (en) * 1986-02-24 1987-09-16 Percy Cohen Henriquez STATIC WASHING COLUMN.
DE10036880A1 (en) * 2000-07-28 2002-02-07 Basf Ag Control of a washing column in a melt crystallization process
DE10242746B4 (en) 2002-09-13 2010-07-01 Evonik Degussa Gmbh Washing device, a process for cleaning a laundry and the use of the washing device
EP1876147A1 (en) * 2006-07-05 2008-01-09 Bp Exploration Operating Company Limited Desalination process
EP2130572A1 (en) 2008-06-06 2009-12-09 Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO Rotating knife, washing column, and method for disintegrating a crystal bed in a washing column
EP2566815B1 (en) 2010-05-04 2014-06-18 Solvay Chemicals, Inc. Impurities removal from waste solids in the production of soda ash, sodium bicarbonate and/or other derivatives
CN116529233A (en) * 2020-11-20 2023-08-01 株式会社日本触媒 Compound purification method
WO2022107812A1 (en) * 2020-11-20 2022-05-27 株式会社日本触媒 Purification device
CN112774244B (en) * 2020-12-30 2022-09-23 江苏楷益智能科技有限公司 Scraper type surface crystallizer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1215605B (en) * 1958-11-15 1966-04-28 Carrier Corp Method and device for obtaining drinking water from a salt solution
GB1111933A (en) * 1966-01-07 1968-05-01 Atomic Energy Authority Uk Improvements in or relating to desalination
US3803860A (en) * 1971-05-22 1974-04-16 Mitsui Shipbuilding Eng Freeze process for making fresh water from brine
GB1358800A (en) * 1971-08-23 1974-07-03 Avco Corp Purification of contaminated liquids
US3992170A (en) * 1975-03-20 1976-11-16 Dravo Corporation Method and apparatus for melting ice in saline water conversion systems
FR2334627A1 (en) * 1975-12-09 1977-07-08 Saksir Fernand Desalination by freezing seawater and washing the ice - to dissolve surface salts avoids problems of highly corrosive deposits

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3587859A (en) * 1968-07-30 1971-06-28 Ronald F Probstein Method of separating solid particles from a slurry with wash column separators
JPS4974171A (en) * 1972-10-20 1974-07-17
GB1555357A (en) * 1976-10-15 1979-11-07 Douwe Egberts Koninlijke Tabak Apparatus and process for the separation of crystals and mother liquor
GB1589477A (en) * 1977-01-12 1981-05-13 Douwe Egberts Tabaksfab Freeze concentration apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1215605B (en) * 1958-11-15 1966-04-28 Carrier Corp Method and device for obtaining drinking water from a salt solution
GB1111933A (en) * 1966-01-07 1968-05-01 Atomic Energy Authority Uk Improvements in or relating to desalination
US3803860A (en) * 1971-05-22 1974-04-16 Mitsui Shipbuilding Eng Freeze process for making fresh water from brine
GB1358800A (en) * 1971-08-23 1974-07-03 Avco Corp Purification of contaminated liquids
US3992170A (en) * 1975-03-20 1976-11-16 Dravo Corporation Method and apparatus for melting ice in saline water conversion systems
FR2334627A1 (en) * 1975-12-09 1977-07-08 Saksir Fernand Desalination by freezing seawater and washing the ice - to dissolve surface salts avoids problems of highly corrosive deposits

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0175401A1 (en) * 1984-08-17 1986-03-26 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO Method for the separation of suspension liquid from solid particles present in suspension and washing of the packed bed of solid particles obtained counter-currently with a washing liquid

Also Published As

Publication number Publication date
NL178392C (en) 1986-03-17
GB2023564B (en) 1982-09-08
ZA792809B (en) 1980-06-25
CH643150A5 (en) 1984-05-30
FR2433966B1 (en) 1985-07-19
DE2923854A1 (en) 1980-01-10
IT7923784A0 (en) 1979-06-21
DE2923854C2 (en) 1988-02-04
NL178392B (en) 1985-10-16
CA1144056A (en) 1983-04-05
BR7903889A (en) 1980-02-20
AU4811479A (en) 1980-01-03
AU518789B2 (en) 1981-10-22
JPS5913882B2 (en) 1984-04-02
SE7905314L (en) 1979-12-24
NL7904919A (en) 1979-12-28
SE449448B (en) 1987-05-04
IT1162744B (en) 1987-04-01
JPS558895A (en) 1980-01-22
GB2023564A (en) 1980-01-03

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