GB736036A - Method and apparatus for the treatment of finely divided fluidizable solid material - Google Patents

Method and apparatus for the treatment of finely divided fluidizable solid material

Info

Publication number
GB736036A
GB736036A GB1800/53A GB180053A GB736036A GB 736036 A GB736036 A GB 736036A GB 1800/53 A GB1800/53 A GB 1800/53A GB 180053 A GB180053 A GB 180053A GB 736036 A GB736036 A GB 736036A
Authority
GB
United Kingdom
Prior art keywords
heat
heating elements
temperature
zone
sulphide
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
GB1800/53A
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.)
Alcan Research and Development Ltd
Original Assignee
Aluminium Laboratories 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 Aluminium Laboratories Ltd filed Critical Aluminium Laboratories Ltd
Publication of GB736036A publication Critical patent/GB736036A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D13/00—Heat-exchange apparatus using a fluidised bed
    • 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
    • B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
    • B01J6/001—Calcining
    • B01J6/004—Calcining using hot gas streams in which the material is moved
    • 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
    • B01J8/005—Separating solid material from the gas/liquid stream
    • 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
    • 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
    • B01J8/36—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 through which there is an essentially horizontal flow of particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/2603—Attenuation of the light according to ambient luminiosity, e.g. for braking or direction indicating lamps
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/44—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water
    • C01F7/441—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination
    • C01F7/445—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination making use of a fluidised bed
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C22B1/10—Roasting processes in fluidised form
    • 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
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00106—Controlling the temperature by indirect heat exchange
    • B01J2208/00115—Controlling the temperature by indirect heat exchange with heat exchange elements inside the bed of solid particles
    • B01J2208/00132—Tubes
    • 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
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00106—Controlling the temperature by indirect heat exchange
    • B01J2208/00115—Controlling the temperature by indirect heat exchange with heat exchange elements inside the bed of solid particles
    • B01J2208/00141—Coils
    • 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
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00796—Details of the reactor or of the particulate material
    • B01J2208/00823—Mixing elements
    • B01J2208/00831—Stationary elements
    • B01J2208/0084—Stationary elements inside the bed, e.g. baffles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Metallurgy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

Finely-divided fluidizable solid material is treated by forming and maintaining a deep fluidized bed of said material in horizontal flow and transmitting heat to said material by means of heating elements in direct content therewith at successive stages of its horizontal flow in varying predetermined quantities and at varying predetermined temperatures. The amount of heat reaching the various stages in the bed may be suitably regulated, by varying the number and temperature of the heating elements, or adjusting the amount of fluidizing medium, to provide heat substantially in conformity with the heat requirements of said material over the temperature ranges for the operation being performed. The density of the heating elements may be increased in zones where, e.g., endothermic phase changes take place and vice versa, or may be varied in accordance with the heat capacity of the material undergoing treatment. The invention is applicable to roasting of sulphide ores, particularly those in which there is insufficient sulphide content to provide for complete calcination by exothermic oxidation thereof. In the example described, the sulphide is first brought to just below the reaction temperature in the first zone by means of a hot but inert gas, oxidized in a second zone and cooled by means of coils in a final zone as described in Specification 693,868, [Group XIII]. Part of the exit gases from the oxidization step may be recirculated with the fluidizing gases and only sufficient air or oxygen supplied for the complete oxidation so that the maximum sulphur dioxide concentration is obtained, for production of sulphuric acid. The calcination of gibbsite is described, details of the temperature and a suitably designed apparatus being given. The production of iron oxide is also referred to. Specification 727,286 also is referred to.
GB1800/53A 1952-01-23 1953-01-21 Method and apparatus for the treatment of finely divided fluidizable solid material Expired GB736036A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US736036XA 1952-01-23 1952-01-23

Publications (1)

Publication Number Publication Date
GB736036A true GB736036A (en) 1955-08-31

Family

ID=22114687

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1800/53A Expired GB736036A (en) 1952-01-23 1953-01-21 Method and apparatus for the treatment of finely divided fluidizable solid material
GB1801/53A Expired GB727286A (en) 1952-01-23 1953-01-21 Zoning device for horizontal fluo-solid beds

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1801/53A Expired GB727286A (en) 1952-01-23 1953-01-21 Zoning device for horizontal fluo-solid beds

Country Status (2)

Country Link
CH (1) CH309912A (en)
GB (2) GB736036A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3223047A1 (en) * 1982-06-19 1983-12-22 Johannes Möller Hamburg GmbH & Co KG, 2000 Hamburg FLUIDIZED LAYER HEAT EXCHANGER
GB2137114A (en) * 1983-03-09 1984-10-03 Cosworth Res & Dev Ltd Casting metal and reclaiming foundry sand
EP1325775A1 (en) * 2001-12-20 2003-07-09 Glatt Ingenieurtechnik GmbH Jet bed apparatus for batchwise or continuous processing and process using the jet bed apparatus
US7241425B2 (en) 2004-01-13 2007-07-10 Glatt Ingenieurtechnik Gmbh Fluidized bed apparatus for batch-by-batch or continuous process control and method for operating a fluidized bed apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2069628A1 (en) * 1989-11-27 1991-05-28 George Dennison Fulford High efficiency process for producing alumina and apparatus therefor
US9289739B2 (en) 2009-06-23 2016-03-22 Chevron Philips Chemical Company Lp Continuous preparation of calcined chemically-treated solid oxides

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3223047A1 (en) * 1982-06-19 1983-12-22 Johannes Möller Hamburg GmbH & Co KG, 2000 Hamburg FLUIDIZED LAYER HEAT EXCHANGER
GB2137114A (en) * 1983-03-09 1984-10-03 Cosworth Res & Dev Ltd Casting metal and reclaiming foundry sand
EP1325775A1 (en) * 2001-12-20 2003-07-09 Glatt Ingenieurtechnik GmbH Jet bed apparatus for batchwise or continuous processing and process using the jet bed apparatus
US7241425B2 (en) 2004-01-13 2007-07-10 Glatt Ingenieurtechnik Gmbh Fluidized bed apparatus for batch-by-batch or continuous process control and method for operating a fluidized bed apparatus
US7767161B2 (en) 2004-01-13 2010-08-03 Glatt Ingenieurtechnik Fluidized bed apparatus for batch-by-batch or continuous process control and method for operating a fluidized bed apparatus

Also Published As

Publication number Publication date
GB727286A (en) 1955-03-30
CH309912A (en) 1955-09-30

Similar Documents

Publication Publication Date Title
AU658146B2 (en) Preheating of iron ore feed, prior to reduction to iron carbide in a fluidised bed reactor
US5118479A (en) Process for using fluidized bed reactor
US2462861A (en) Regeneration of a hydrocarbon synthesis catalyst
US7597739B2 (en) Method for reducing a particulate material containing a metal, especially iron ore
GB736036A (en) Method and apparatus for the treatment of finely divided fluidizable solid material
US2867506A (en) Producing sulphur dioxide gas
GB992855A (en) Working up iron pyrite
US4216011A (en) Method and apparatus for the secondary gaseous reduction of metal ores
US1832731A (en) Treatment of iron ores
GB1008938A (en) Process for roasting by fluidization, more particularly for magnetizing roasting
US3948639A (en) Process and device for flash smelting sulphide ores and concentrates
US1749125A (en) Two-step sulphatizing roast
US4348226A (en) Direct reduction process for producing metallic iron
US1742750A (en) Production and utilization of carbon monoxide
US3875294A (en) Process for catalytically reacting gases having a high sulfur dioxide content
US1974886A (en) Roasting of sulphide ores
US2772153A (en) Roasting pyrites
US1447071A (en) Process of agglomerating mixtures of fine ore and fuel in shaft furnaces
EP0950122A1 (en) Method for microwave induced oxidation of sulphidic ore material in fluidized bed without sulphur dioxide emissions
US1481357A (en) Treatment of ores
US664630A (en) Method of making sulfuric anhydrid.
US471147A (en) George w
US1657711A (en) Process of desulphidizing and desulphurizing sulphur minerals
JPS62230910A (en) Method for reducing ores in fluidized bed
GB698165A (en) Improvements in the production of gases containing sulphur trioxide