GB796200A - Improvements in and apparatus for carrying out chemical or physical processes involving finely divided solids and gases - Google Patents

Improvements in and apparatus for carrying out chemical or physical processes involving finely divided solids and gases

Info

Publication number
GB796200A
GB796200A GB512956A GB512956A GB796200A GB 796200 A GB796200 A GB 796200A GB 512956 A GB512956 A GB 512956A GB 512956 A GB512956 A GB 512956A GB 796200 A GB796200 A GB 796200A
Authority
GB
United Kingdom
Prior art keywords
fluidized bed
ore
gases
zone
air
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
GB512956A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB796200A publication Critical patent/GB796200A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/48—Sulfur dioxide; Sulfurous acid
    • C01B17/50—Preparation of sulfur dioxide
    • C01B17/52—Preparation of sulfur dioxide by roasting sulfides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/20—Purifying combustible gases containing carbon monoxide by treating with solids; Regenerating spent purifying masses
    • C10K1/26—Regeneration of the purifying material contains also apparatus for the regeneration of the purifying material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B2700/00—Combustion apparatus for solid fuel
    • F23B2700/009—Combustion apparatus for solid fuel adapted for use in various steam boilers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Abstract

<PICT:0796200/III/1> Fine-grained solid particles are fed to a fluidized bed from above and through the surface thereof whilst maintaining a gas pressure at the point of entry of said material higher than that above the remaining parts of the fluidized bed. The method may be applied to sulphide ore roasting, catalysis or heat exchange processes. As illustrated in the Figure, an ore-roasting furnace 1 lined with refractory ceramic contains a fluidized bed 2 supported upon a grid 3 through which air is blown from wind boxes 4 and 5. An ore such as pyrite is supplied to the furnace from hopper 8 by means of plate feeder 12 and falls through a zone 6 separated from the main gas collecting zone 2a by means of a partition 13 having openings 7 which can be closed by inserting bricks if desired, and a serrated lower edge. The zone is said to be in limited communication with the atmosphere through the unavoidable leakiness of the plate feeder. Air is introduced through a regulating valve 14 into the chamber 6 to maintain the slight excess pressure over that in the chamber 2a. Gases of the same composition as that introduced from the wind boxes and/or inert gases may be supplied above the fluidized bed. The roasted material is discharged through an outlet pipe 19: if desired air may be passed in through inlet 20 to assist the withdrawal. The wind chambers 4 and 5 may also be provided with outlets 18 for discharging ore. A bank of cooling elements 17 serves to maintain the roasting temperature and at the same time produce steam.
GB512956A 1955-02-18 1956-02-20 Improvements in and apparatus for carrying out chemical or physical processes involving finely divided solids and gases Expired GB796200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB34565A DE1018227B (en) 1955-02-18 1955-02-18 Process for carrying out chemical or physical exchange processes between finely divided solids and gases

Publications (1)

Publication Number Publication Date
GB796200A true GB796200A (en) 1958-06-04

Family

ID=6964344

Family Applications (1)

Application Number Title Priority Date Filing Date
GB512956A Expired GB796200A (en) 1955-02-18 1956-02-20 Improvements in and apparatus for carrying out chemical or physical processes involving finely divided solids and gases

Country Status (4)

Country Link
BE (1) BE545244A (en)
DE (1) DE1018227B (en)
GB (1) GB796200A (en)
NL (1) NL99297C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4921874U (en) * 1972-05-27 1974-02-23
AU2001246595B2 (en) * 2000-03-16 2005-08-11 Outotec Oyj Method for regulating a roasting furnace

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4921874U (en) * 1972-05-27 1974-02-23
JPS5120593Y2 (en) * 1972-05-27 1976-05-29
AU2001246595B2 (en) * 2000-03-16 2005-08-11 Outotec Oyj Method for regulating a roasting furnace

Also Published As

Publication number Publication date
BE545244A (en)
DE1018227B (en) 1957-10-24
NL99297C (en)

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