AU580326B2 - Apparatus and method of continuous-process crystallization - Google Patents

Apparatus and method of continuous-process crystallization

Info

Publication number
AU580326B2
AU580326B2 AU46467/85A AU4646785A AU580326B2 AU 580326 B2 AU580326 B2 AU 580326B2 AU 46467/85 A AU46467/85 A AU 46467/85A AU 4646785 A AU4646785 A AU 4646785A AU 580326 B2 AU580326 B2 AU 580326B2
Authority
AU
Australia
Prior art keywords
mixture
process path
along
liquor
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.)
Ceased
Application number
AU46467/85A
Other versions
AU4646785A (en
Inventor
Francois Langreney
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.)
Individual
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
Application filed by Individual filed Critical Individual
Publication of AU4646785A publication Critical patent/AU4646785A/en
Application granted granted Critical
Publication of AU580326B2 publication Critical patent/AU580326B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0018—Evaporation of components of the mixture to be separated
    • B01D9/0022—Evaporation of components of the mixture to be separated by reducing pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0018—Evaporation of components of the mixture to be separated
    • B01D9/0031—Evaporation of components of the mixture to be separated by heating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0063—Control or regulation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Saccharide Compounds (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Removal Of Specific Substances (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Enzymes And Modification Thereof (AREA)
  • General Preparation And Processing Of Foods (AREA)

Abstract

1. Method of continuous-process crystallization, in which a mixture of crystals surrounded by mother liquor is urged along a process path (C1, C2) through a reactor, feeding liquor is supplied to the mixture throughout the process path, said feeding liquor providing the nourishment required for crystal growth, and the mixture is brought to a boil with the help of a heating surface in order to bring about a concentration of the mixture diluted by the feeding liquor, characterized in that stirring of the mixture is intensified along the process path (C1, C2) in order to keep the specific rate of crystallization to a substantially constant optimum value over most of the process path (C1, C2), said intensifying of the stirring being obtained by modifying the mixture boiling rate by an increase of the heating surface (15) along the process path (C1, C2), said surface increase as well as the supply of matter following an exponential distribution as a function of the length of the process path inside the reactor, the exponent preferably ranging between 0.625 and 0.75.
AU46467/85A 1984-08-20 1985-08-20 Apparatus and method of continuous-process crystallization Ceased AU580326B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8412977 1984-08-20
FR8412977A FR2569130B1 (en) 1984-08-20 1984-08-20 CONTINUOUS CRYSTALLIZATION PROCESS AND DEVICE, ESPECIALLY SUCROSE

Publications (2)

Publication Number Publication Date
AU4646785A AU4646785A (en) 1986-02-27
AU580326B2 true AU580326B2 (en) 1989-01-12

Family

ID=9307114

Family Applications (1)

Application Number Title Priority Date Filing Date
AU46467/85A Ceased AU580326B2 (en) 1984-08-20 1985-08-20 Apparatus and method of continuous-process crystallization

Country Status (11)

Country Link
EP (1) EP0176392B1 (en)
JP (1) JPS6158599A (en)
AT (1) ATE38162T1 (en)
AU (1) AU580326B2 (en)
BR (1) BR8503942A (en)
DE (1) DE3565780D1 (en)
DK (1) DK376885A (en)
ES (1) ES8604781A1 (en)
FR (1) FR2569130B1 (en)
IN (1) IN164031B (en)
ZA (1) ZA856305B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU645368B2 (en) * 1990-11-28 1994-01-13 Csr Limited Process and apparatus for the crystallisation of sugar

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4931543A (en) * 1987-05-11 1990-06-05 Cetus Corporation Process for recovering microbially produced interleukin-2
FR2922890B1 (en) * 2007-10-30 2009-12-18 Roquette Freres METHOD FOR EVAPOCRYSTALLIZING MALTITOL.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1324801A (en) * 1962-06-12 1963-04-19 Sueddeutsche Zucker Ag Process and installation for cooking and crystallizing sugar solutions
US3879215A (en) * 1972-08-24 1975-04-22 Hyesons Sugar Mills Limited Compartmentalized vacuum pan for crystallization of sugar

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE259990C (en) *
DE1567300B1 (en) * 1961-04-07 1970-04-02 Machinenfabrik Buckau R Wolf Ag Cooking device for the continuous crystallization of syrup into sugar filling mass
FR1358472A (en) * 1963-02-27 1964-04-17 Fives Lille Cail Continuous cooking appliance
CH483272A (en) * 1967-05-02 1969-12-31 Belge Atel Reunies Baking device for continuous crystallization
FR1581088A (en) * 1968-07-17 1969-09-12
FR2142184A5 (en) * 1971-06-16 1973-01-26 Fives Lille Cail
US4160812A (en) * 1977-09-20 1979-07-10 Texasgulf Inc. Multi-stage crystallization of sodium carbonate
DE3120732A1 (en) * 1981-05-25 1982-12-09 Erich Prof. Dr. 3340 Wolfenbüttel Reinefeld "METHOD AND DEVICE FOR CONTINUOUS EVAPORATION CRYSTALIZATION"
JPS5820277A (en) * 1981-07-29 1983-02-05 ヤンマー農機株式会社 Oscillation selector
JPH0228386B2 (en) * 1981-07-30 1990-06-22 Yanmaa Noki Kk YODOSENBETSUKI

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1324801A (en) * 1962-06-12 1963-04-19 Sueddeutsche Zucker Ag Process and installation for cooking and crystallizing sugar solutions
US3879215A (en) * 1972-08-24 1975-04-22 Hyesons Sugar Mills Limited Compartmentalized vacuum pan for crystallization of sugar

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU645368B2 (en) * 1990-11-28 1994-01-13 Csr Limited Process and apparatus for the crystallisation of sugar

Also Published As

Publication number Publication date
DE3565780D1 (en) 1988-12-01
ES8604781A1 (en) 1986-03-01
JPS6158599A (en) 1986-03-25
AU4646785A (en) 1986-02-27
EP0176392B1 (en) 1988-10-26
ES546300A0 (en) 1986-03-01
DK376885A (en) 1986-02-21
ATE38162T1 (en) 1988-11-15
ZA856305B (en) 1986-04-30
IN164031B (en) 1988-12-31
FR2569130A1 (en) 1986-02-21
EP0176392A1 (en) 1986-04-02
BR8503942A (en) 1986-06-03
DK376885D0 (en) 1985-08-19
FR2569130B1 (en) 1989-09-08

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired