FR2291788A1 - FLUIDIZATION PROCESS USING A GAS OF SOLID MATERIALS, ESPECIALLY STARCH - Google Patents

FLUIDIZATION PROCESS USING A GAS OF SOLID MATERIALS, ESPECIALLY STARCH

Info

Publication number
FR2291788A1
FR2291788A1 FR7535963A FR7535963A FR2291788A1 FR 2291788 A1 FR2291788 A1 FR 2291788A1 FR 7535963 A FR7535963 A FR 7535963A FR 7535963 A FR7535963 A FR 7535963A FR 2291788 A1 FR2291788 A1 FR 2291788A1
Authority
FR
France
Prior art keywords
solids
zone
fluidised
fluidisation
gas
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
FR7535963A
Other languages
French (fr)
Other versions
FR2291788B1 (en
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.)
Unilever Bestfoods North America
Original Assignee
Unilever Bestfoods North America
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 US05/526,784 external-priority patent/US3967975A/en
Priority claimed from US05/634,208 external-priority patent/US4021927A/en
Application filed by Unilever Bestfoods North America filed Critical Unilever Bestfoods North America
Publication of FR2291788A1 publication Critical patent/FR2291788A1/en
Application granted granted Critical
Publication of FR2291788B1 publication Critical patent/FR2291788B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/38—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it
    • B01J8/382—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it with a rotatable device only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/26—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with two or more fluidised beds, e.g. reactor and regeneration installations
    • B01J8/28—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with two or more fluidised beds, e.g. reactor and regeneration installations the one above the other
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
    • C08B30/12—Degraded, destructured or non-chemically modified starch, e.g. mechanically, enzymatically or by irradiation; Bleaching of starch
    • C08B30/18—Dextrin, e.g. yellow canari, white dextrin, amylodextrin or maltodextrin; Methods of depolymerisation, e.g. by irradiation or mechanically
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B31/00—Preparation of derivatives of starch

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Combustion & Propulsion (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

Cohesive solids, in particular, are fluidised by means of a fluidising gas by transferring them from an upper into a lower fluidisation zone or vice versa, in which process they pass a multiplicity of intermediate tubular, heatable fluidisation zones having smaller tube diameters than the upper and lower zone mentioned. In this central zone, heat is transferred to the fluidised solids. In the upper and in the lower zone the solids are stirred mechanically. At the same time, the fluidising gas flows upwards, so that the solids can be moved with or against the stream. As this process results in optimum heat transfer, it is possible, by mixing with appropriate reactants, to carry out chemical reactions with cohesive solids, without the solids agglomerating or igniting spontaneously.
FR7535963A 1974-11-25 1975-11-25 FLUIDIZATION PROCESS USING A GAS OF SOLID MATERIALS, ESPECIALLY STARCH Granted FR2291788A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/526,784 US3967975A (en) 1974-11-25 1974-11-25 Fluidization apparatus
US57360475A 1975-04-30 1975-04-30
US05/634,208 US4021927A (en) 1974-11-25 1975-11-21 Process for fluidization

Publications (2)

Publication Number Publication Date
FR2291788A1 true FR2291788A1 (en) 1976-06-18
FR2291788B1 FR2291788B1 (en) 1982-05-21

Family

ID=27414946

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7535963A Granted FR2291788A1 (en) 1974-11-25 1975-11-25 FLUIDIZATION PROCESS USING A GAS OF SOLID MATERIALS, ESPECIALLY STARCH

Country Status (12)

Country Link
JP (1) JPS593200B2 (en)
AR (1) AR218215A1 (en)
BR (1) BR7507801A (en)
CA (1) CA1069275A (en)
CH (1) CH620839A5 (en)
DE (1) DE2552881C2 (en)
DK (1) DK153526B (en)
ES (1) ES443132A1 (en)
FR (1) FR2291788A1 (en)
IT (1) IT1054911B (en)
NL (1) NL173923C (en)
SE (1) SE416023B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993020119A1 (en) * 1992-03-30 1993-10-14 Deutsche Gelatine-Fabriken Stoess Ag Biodegradable, water resistant polymer material
NL9302094A (en) * 1993-12-02 1995-07-03 Avebe Coop Verkoop Prod Fluidization of a bed of starch powder
WO1995020608A1 (en) * 1994-01-31 1995-08-03 Henkel Kommanditgesellschaft Auf Aktien Fluidized-bed oxidation method for the production of polycarboxylates based on polysaccharides
FR2982862A1 (en) * 2011-11-18 2013-05-24 Roquette Freres New modified starch having a specified range of weight-average molecular weight and solubility, measured according to a test A, useful for manufacturing of an aqueous binder, and in paper and board industry e.g. magazines
WO2013072638A3 (en) * 2011-11-18 2013-10-31 Roquette Freres Partially soluble dextrins of high molecular weight

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4237619A (en) * 1978-12-15 1980-12-09 Cpc International Inc. Fluidized bed apparatus
DE19510313A1 (en) * 1995-03-22 1996-09-26 Henkel Kgaa Improved oxidation process for the production of polycarboxylates from polysaccharides
CA2545327C (en) * 2003-11-13 2013-09-10 Cerestar Holding B.V. Method for modifying starch and starch derivatives in a continuous process
JP2005263867A (en) * 2004-03-16 2005-09-29 Oji Cornstarch Co Ltd Roast dextrin with high content of dietary fiber and its preparation method
US7722722B2 (en) * 2007-11-16 2010-05-25 Brunob Ii B.V. Continuous fluid bed reactor
WO2024036069A1 (en) * 2022-08-08 2024-02-15 Cargill, Incorporated A method for producing a thermally inhibited starch

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2353600A (en) * 1940-08-22 1944-07-11 Standard Catalytic Co Process for controlling temperature in exothermic chemical reactions
DE895760C (en) * 1949-03-29 1953-11-05 Richard Dr Klar Process to improve the heat dissipation in exothermic catalytic gas reactions with dust-like contact masses
US2845368A (en) * 1954-05-27 1958-07-29 Staley Mfg Co A E Dextrinization process
US2893851A (en) * 1955-12-29 1959-07-07 American Oil Co Powdered catalyst contacting unit
NL168717C (en) * 1970-04-21 Ube Industries DEVICE FOR TRANSFERRING HEAT BETWEEN A FIRST AND A SECOND GAS USING A RECYCLED FINELY DISTRIBUTED SOLID AS A HEAT TRANSFER.
GB1365838A (en) * 1972-04-21 1974-09-04 Ibm Data handling system
JPS5029255B2 (en) * 1972-07-21 1975-09-22

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993020119A1 (en) * 1992-03-30 1993-10-14 Deutsche Gelatine-Fabriken Stoess Ag Biodegradable, water resistant polymer material
NL9302094A (en) * 1993-12-02 1995-07-03 Avebe Coop Verkoop Prod Fluidization of a bed of starch powder
WO1995020608A1 (en) * 1994-01-31 1995-08-03 Henkel Kommanditgesellschaft Auf Aktien Fluidized-bed oxidation method for the production of polycarboxylates based on polysaccharides
US5821360A (en) * 1994-01-31 1998-10-13 Henkel Kommanditgesellschaft Auf Aktien Fluidized-bed oxidation process for the production of polysaccharide-based polycarboxylates
FR2982862A1 (en) * 2011-11-18 2013-05-24 Roquette Freres New modified starch having a specified range of weight-average molecular weight and solubility, measured according to a test A, useful for manufacturing of an aqueous binder, and in paper and board industry e.g. magazines
WO2013072638A3 (en) * 2011-11-18 2013-10-31 Roquette Freres Partially soluble dextrins of high molecular weight
US10323158B2 (en) 2011-11-18 2019-06-18 Roquettes Freres Coating slips based on partially soluble dextrins of high molecular weight
US10370553B2 (en) 2011-11-18 2019-08-06 Roquette Freres Partially soluble dextrins of high molecular weight

Also Published As

Publication number Publication date
ES443132A1 (en) 1977-09-16
DE2552881C2 (en) 1983-09-22
SE416023B (en) 1980-11-24
DK153526B (en) 1988-07-25
NL173923C (en) 1984-04-02
JPS593200B2 (en) 1984-01-23
CA1069275A (en) 1980-01-08
NL7513763A (en) 1976-05-28
DK528375A (en) 1976-05-26
NL173923B (en) 1983-11-01
AR218215A1 (en) 1980-05-30
JPS5177579A (en) 1976-07-05
BR7507801A (en) 1976-08-10
DE2552881A1 (en) 1977-06-02
IT1054911B (en) 1981-11-30
CH620839A5 (en) 1980-12-31
SE7513173L (en) 1976-05-26
FR2291788B1 (en) 1982-05-21

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Legal Events

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