GB990336A - Process and apparatus for the decomposition of ferrous sulphite monohydrate - Google Patents

Process and apparatus for the decomposition of ferrous sulphite monohydrate

Info

Publication number
GB990336A
GB990336A GB6241/63A GB624163A GB990336A GB 990336 A GB990336 A GB 990336A GB 6241/63 A GB6241/63 A GB 6241/63A GB 624163 A GB624163 A GB 624163A GB 990336 A GB990336 A GB 990336A
Authority
GB
United Kingdom
Prior art keywords
hearths
sulphur
supplied
gases
hearth
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
GB6241/63A
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz 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 Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Publication of GB990336A publication Critical patent/GB990336A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C01G49/04—Ferrous oxide (FeO)
    • 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
    • C01B17/507—Preparation of sulfur dioxide by reduction of sulfur compounds of iron sulfates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Abstract

<PICT:0990336/C1/1> Ferrous sulphate monohydrate is decomposed to the oxide in a multiple hearth furnace using sulphur as fuel, which is supplied in solid form to a plurality of hearths. The furnace consists of cylindrical casing 1, with hearths 4, of refractory material; a rotating rabble mechanism 2; and a surrounding of sheet iron 3. Some of the sulphur, e.g. 25%, may be supplied to drying hearth (16) with the ferrous sulphate, which is then conveyed transversely over each hearth by obliquely set rabble blades 9, so that it falls alternately through apertures 5 and 6, and finally out at 17 after cooling on the lower hearths. The rest of the sulphur is supplied to alternate, upper and middle hearths only, by means of hoppers 14, screw conveyers 15, and pipes 13, which project a short distance over the hearths, and may have flap valves to prevent gases escaping. Pipes such as 13 may also supply sulphur through the walls above apertures 6, where it mixes with the falling material. Gases from roasting (containing SO2) are drawn off at 11 to extract chamber 10, and may be conveyed to a sulphuric acid plant. These gases may be heated, e.g. from 650 DEG to 850 DEG C., and used to generate steam in a waste-heat boiler.
GB6241/63A 1962-09-24 1963-02-15 Process and apparatus for the decomposition of ferrous sulphite monohydrate Expired GB990336A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK47800A DE1154816B (en) 1962-09-24 1962-09-24 Process and device for the cleavage of iron sulfate monohydrate

Publications (1)

Publication Number Publication Date
GB990336A true GB990336A (en) 1965-04-28

Family

ID=7224705

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6241/63A Expired GB990336A (en) 1962-09-24 1963-02-15 Process and apparatus for the decomposition of ferrous sulphite monohydrate

Country Status (3)

Country Link
BE (1) BE628731A (en)
DE (1) DE1154816B (en)
GB (1) GB990336A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2383128A1 (en) * 1977-03-12 1978-10-06 Metallgesellschaft Ag PROCESS FOR THE THERMAL DISSOCIATION OF SALTS CONTAINING PRIMARILY IRON SULPHATE
EP0039866A2 (en) * 1980-05-13 1981-11-18 Bayer Ag Process for the dissociation of iron sulfate and sulfuric acid, and application of rubber scraps thereto

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043822A (en) * 1975-11-20 1977-08-23 Allied Chemical Corporation Treatment of water-soluble metal sulfate residues
DE2653765A1 (en) * 1976-11-26 1978-06-01 Bayer Ag PROCESS FOR THE PRODUCTION OF IRON OXIDE BLACK PIGMENTS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2383128A1 (en) * 1977-03-12 1978-10-06 Metallgesellschaft Ag PROCESS FOR THE THERMAL DISSOCIATION OF SALTS CONTAINING PRIMARILY IRON SULPHATE
EP0039866A2 (en) * 1980-05-13 1981-11-18 Bayer Ag Process for the dissociation of iron sulfate and sulfuric acid, and application of rubber scraps thereto
EP0039866A3 (en) * 1980-05-13 1982-04-07 Bayer Ag Process for the dissociation of iron sulfate and sulfuric acid, and application of rubber scraps thereto

Also Published As

Publication number Publication date
BE628731A (en) 1900-01-01
DE1154816B (en) 1963-09-26

Similar Documents

Publication Publication Date Title
GB990336A (en) Process and apparatus for the decomposition of ferrous sulphite monohydrate
ES368560A1 (en) Improvements in or relating to the production of sponge iron
GB928014A (en) Garbage destruction plant
GB1008938A (en) Process for roasting by fluidization, more particularly for magnetizing roasting
GB1349910A (en) Apparatus for processing heat-decomposable non-gaseous materials
GB974950A (en) Process for the manufacture of sulphuric dioxide
GB1026675A (en) Process and apparatus for the production of sodium tripolyphosphate of the low temperature form
US1832006A (en) Method of and apparatus for treating quicksilver ores
JPH01501244A (en) Kiln plant for making solid materials containing fuel useful
GB1045602A (en) Method of reducing fine iron ore in a fluidized-solids reactor
SU113690A2 (en) Stepwise countercurrent continuous iron-steam hydrogen production method
AT217065B (en) Process for the continuous reduction of metal oxides in a shaft furnace
ES363307A1 (en) Process for directly reducing materials containing iron oxide in a rotary kiln
GB863001A (en) A process for intensifying the roasting of ores in superposed hearth furnaces by recycling the combustion gases
GB857111A (en) Improvements relating to the recovery of sulphur values of acid sludge
GB443948A (en) Improvements relating to the treatment of flue dust
JPS5494158A (en) Drying method for granular material
GB1042233A (en) Process of refining iron
JPS5679187A (en) Gas reforming
GB796200A (en) Improvements in and apparatus for carrying out chemical or physical processes involving finely divided solids and gases
US456517A (en) Patrick marley
GB752262A (en) Thermal decomposition of sludges
JPS5444267A (en) Device for feeding hot air blast and treating exhaust gas in drier
GB1024200A (en) Method of burning unpurified shaft furnace top gas in slag tap furnaces
JPS5684699A (en) Sludge treatment system