GB1395920A - Apparatus for thermal decomposition of inorganic materials - Google Patents

Apparatus for thermal decomposition of inorganic materials

Info

Publication number
GB1395920A
GB1395920A GB2418172A GB2418172A GB1395920A GB 1395920 A GB1395920 A GB 1395920A GB 2418172 A GB2418172 A GB 2418172A GB 2418172 A GB2418172 A GB 2418172A GB 1395920 A GB1395920 A GB 1395920A
Authority
GB
United Kingdom
Prior art keywords
furnace
inorganic materials
fuel
grids
thermal decomposition
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
GB2418172A
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.)
Mitsui Engineering and Shipbuilding Co Ltd
Original Assignee
Mitsui Engineering and Shipbuilding 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 Mitsui Engineering and Shipbuilding Co Ltd filed Critical Mitsui Engineering and Shipbuilding Co Ltd
Publication of GB1395920A publication Critical patent/GB1395920A/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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14—Methods for preparing oxides or hydroxides in general
    • 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
    • C01B17/501—Preparation of sulfur dioxide by reduction of sulfur compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Abstract

1395920 Fluidized bed decomposition of inorganic materials MITSUI SHIPBUILDING & ENG CO Ltd 23 May 1972 [26 May 1971] 24181/72 Heading C1A [Also in Divisions F4 and B1] Inorganic materials, e.g. Mg or Mn sulphates, are thermally decomposed in a fluidized bed roasting furnace using gaseous fuel wherein the fuel is introduced into the bed 10 through grids 3 provided in the wall of the furnace 1, thereby blowing the material dropped into the furnace from inlet 4 towards the centre of the furnace and thus eliminating the accumulation o material on the grid 2 below the inlets through which air is blown to support combustion of the fuel. The main grid 2 is preferably convex as shown. The angle # of the grids 3 with the horizontal may be 60 degrees. Thermally decomposed materials and waste gases, e.g. SO 2 are discharged at outlets 5 and 9 respectively.
GB2418172A 1971-05-26 1972-05-23 Apparatus for thermal decomposition of inorganic materials Expired GB1395920A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3614971A JPS5140541B1 (en) 1971-05-26 1971-05-26

Publications (1)

Publication Number Publication Date
GB1395920A true GB1395920A (en) 1975-05-29

Family

ID=12461718

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2418172A Expired GB1395920A (en) 1971-05-26 1972-05-23 Apparatus for thermal decomposition of inorganic materials

Country Status (8)

Country Link
JP (1) JPS5140541B1 (en)
BE (1) BE783904A (en)
CH (1) CH538655A (en)
DE (1) DE2224668A1 (en)
FR (1) FR2139172B1 (en)
GB (1) GB1395920A (en)
IT (1) IT955854B (en)
NL (1) NL7207112A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190909A (en) * 1986-05-02 1987-12-02 Boc Group Plc Treatment of waste material
US4853206A (en) * 1986-05-02 1989-08-01 The Boc Group Plc Treatment of waste material
GB2297923A (en) * 1995-02-15 1996-08-21 L Air Liquide Societe Anonmyne Arrangement of a retaining grille of an active material in a vessel, and a vessel so equipped
CN110935401A (en) * 2019-11-04 2020-03-31 刘榕副 Converging fluidized bed

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486058A1 (en) * 1980-07-01 1982-01-08 Ugine Kuhlmann NOVEL PROCESS FOR THE PREPARATION OF HIGH-PURITY ALUMINA FROM AMMONIUM ALUM
FR3037130B1 (en) * 2015-06-05 2017-06-16 Lepez Conseils Finance Innovations Lcfi CRACKING OVEN
DE102015110772A1 (en) 2015-07-03 2017-01-05 Outotec (Finland) Oy Method and plant for roasting dry ore particles in a fluidized bed

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190909A (en) * 1986-05-02 1987-12-02 Boc Group Plc Treatment of waste material
US4853206A (en) * 1986-05-02 1989-08-01 The Boc Group Plc Treatment of waste material
GB2190909B (en) * 1986-05-02 1990-05-02 Boc Group Plc Treatment of waste material
GB2297923A (en) * 1995-02-15 1996-08-21 L Air Liquide Societe Anonmyne Arrangement of a retaining grille of an active material in a vessel, and a vessel so equipped
GB2297923B (en) * 1995-02-15 1999-08-11 L Air Liquide Societe Anonmyne Arrangement of a retaining grille of an active material in a vessel, and a vessel so equipped
CN110935401A (en) * 2019-11-04 2020-03-31 刘榕副 Converging fluidized bed
CN110935401B (en) * 2019-11-04 2022-05-27 佛山市大千环保科技有限公司 Converging fluidized bed

Also Published As

Publication number Publication date
FR2139172B1 (en) 1973-07-13
DE2224668A1 (en) 1973-01-04
CH538655A (en) 1973-06-30
FR2139172A1 (en) 1973-01-05
BE783904A (en) 1972-09-18
IT955854B (en) 1973-09-29
JPS5140541B1 (en) 1976-11-04
NL7207112A (en) 1972-11-28

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Legal Events

Date Code Title Description
PS Patent sealed