GB1116519A - Process for roasting iron sulfide materials - Google Patents

Process for roasting iron sulfide materials

Info

Publication number
GB1116519A
GB1116519A GB4717265A GB4717265A GB1116519A GB 1116519 A GB1116519 A GB 1116519A GB 4717265 A GB4717265 A GB 4717265A GB 4717265 A GB4717265 A GB 4717265A GB 1116519 A GB1116519 A GB 1116519A
Authority
GB
United Kingdom
Prior art keywords
cinders
sulphides
roasted
shaft
roasting
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
GB4717265A
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.)
Boliden AB
Original Assignee
Boliden AB
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 Boliden AB filed Critical Boliden AB
Publication of GB1116519A publication Critical patent/GB1116519A/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
    • 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
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C01G49/08—Ferroso-ferric oxide (Fe3O4)
    • 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
    • C22B1/08—Chloridising roasting
    • 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
    • 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
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Abstract

In the process of roasting iron sulphides according to Specification 917,480 (wherein said sulphides are roasted in suspension under such conditions as to produce magnetite and sulphur vapour formed is converted wholly to SO2 after separation from the magnetite), hematitic or magnetitic iron oxide cinders or ores are added to the sulphides to be roasted up to a limit where the exothermic reaction ceases to be self-maintaining. Any arsenic, lead, and antimony contained in the hematitic or magnetitic iron oxide charge is driven off, and the roasted product is separated from it simultaneously with the sulphur. Dust-like cinders remaining in the roaster gases after separation of the major proportion of the cinders are separated and returned to the fluidized bed. Part of the oxygen for the roasting operation is supplied in a shaft above the bed, whereby the temperature can be held higher in the shaft than in the bed. The roasting operation may be effected in the shaft.
GB4717265A 1958-05-08 1965-11-08 Process for roasting iron sulfide materials Expired GB1116519A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE443658 1958-05-08
SE435859 1959-05-05
SE1343964 1964-11-06
CA931310 1965-05-21

Publications (1)

Publication Number Publication Date
GB1116519A true GB1116519A (en) 1968-06-06

Family

ID=38952187

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3479367A Expired GB1124909A (en) 1958-05-08 1965-11-08 Process for roasting iron sulfide materials
GB4717265A Expired GB1116519A (en) 1958-05-08 1965-11-08 Process for roasting iron sulfide materials

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3479367A Expired GB1124909A (en) 1958-05-08 1965-11-08 Process for roasting iron sulfide materials

Country Status (3)

Country Link
BE (1) BE671902A (en)
FI (1) FI43645C (en)
GB (2) GB1124909A (en)

Also Published As

Publication number Publication date
FI43645C (en) 1971-05-10
FI43645B (en) 1971-02-01
GB1124909A (en) 1968-08-21
BE671902A (en) 1966-03-01

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