GB1418868A - Fluidised bed processing - Google Patents

Fluidised bed processing

Info

Publication number
GB1418868A
GB1418868A GB5287571A GB5287571A GB1418868A GB 1418868 A GB1418868 A GB 1418868A GB 5287571 A GB5287571 A GB 5287571A GB 5287571 A GB5287571 A GB 5287571A GB 1418868 A GB1418868 A GB 1418868A
Authority
GB
United Kingdom
Prior art keywords
liquid
fluidised bed
particles
granules
zinc chloride
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
GB5287571A
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.)
Head Wrightson and Co Ltd
Original Assignee
Head Wrightson and Co Ltd
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 Head Wrightson and Co Ltd filed Critical Head Wrightson and Co Ltd
Priority to GB5287571A priority Critical patent/GB1418868A/en
Publication of GB1418868A publication Critical patent/GB1418868A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/16—Evaporating by spraying
    • B01D1/18—Evaporating by spraying to obtain dry solids
    • 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
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/006—Coating of the granules without description of the process or the device by which the granules are obtained
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
    • F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
    • F26B3/088—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed using inert thermally-stabilised particles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Glanulating (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

1418868 Fluidised bed evaporation, drying, coating and absorbtion HEAD WRIGHTSON & CO LTD 10 Jan 1973 [15 Nov 1971] 52875/ 71 Addition to 1119514 Headings B1B, B1F and B2E [Also in Division F4] A method of treating a first material in the form of substantially dry fluidisable particles with a second chemically different material in the form of a liquid or dissolved or suspended in or formed into a slurry with a liquid, comprises the steps of producing an ordered motion of the particles of the first material within a zone of a fluidised bed, and injecting a liquid or slurry comprising the second material directly into the zone in a direction which intersects the ordered, motion of the particles so that liquid droplets collide with the particles and coat them whereby efficient evaporation of liquid therefrom, or solidification of liquid thereonto, or absorption of liquid thereinto is effected. Thus granules of caustic soda covered sand can be formed by spraying a 48% caustic soda solution using the apparatus of Specification 1304253 (B1B) under the surface of a fluidised bed of sand e.g. formed in the apparatus of Figs. 1-4 of Specification 1111097 (F4B). White oil is similarly absorbed in fullers earth. Granules of zinc chloride are formed by spraying molten zinc chloride into a fluidised bed of zinc chloride granules using the apparatus disclosed in Specification 1304253 (B1B).
GB5287571A 1971-11-15 1971-11-15 Fluidised bed processing Expired GB1418868A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5287571A GB1418868A (en) 1971-11-15 1971-11-15 Fluidised bed processing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5287571A GB1418868A (en) 1971-11-15 1971-11-15 Fluidised bed processing

Publications (1)

Publication Number Publication Date
GB1418868A true GB1418868A (en) 1975-12-24

Family

ID=10465657

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5287571A Expired GB1418868A (en) 1971-11-15 1971-11-15 Fluidised bed processing

Country Status (1)

Country Link
GB (1) GB1418868A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0206368A2 (en) * 1985-06-19 1986-12-30 Shell Internationale Researchmaatschappij B.V. Process for the preparation of heteropolysaccharide particles
US4734290A (en) * 1985-12-12 1988-03-29 Mallinckrodt, Inc. Process for preparing a coated-particle salt substitute composition

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0206368A2 (en) * 1985-06-19 1986-12-30 Shell Internationale Researchmaatschappij B.V. Process for the preparation of heteropolysaccharide particles
EP0206368A3 (en) * 1985-06-19 1988-03-16 Shell Internationale Research Maatschappij B.V. Process for the preparation of heteropolysaccharide particles
US4734290A (en) * 1985-12-12 1988-03-29 Mallinckrodt, Inc. Process for preparing a coated-particle salt substitute composition

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)