GB857867A - Improvements in and relating to the roasting of arseniferous minerals, such as pyrites - Google Patents
Improvements in and relating to the roasting of arseniferous minerals, such as pyritesInfo
- Publication number
- GB857867A GB857867A GB38547/57A GB3854757A GB857867A GB 857867 A GB857867 A GB 857867A GB 38547/57 A GB38547/57 A GB 38547/57A GB 3854757 A GB3854757 A GB 3854757A GB 857867 A GB857867 A GB 857867A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roasting
- pyrites
- burnt material
- arseniferous
- minerals
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Compounds Of Iron (AREA)
Abstract
The arsenic content of iron pyrites is reduced by roasting the pyrites at 800 DEG C. or above in a bed fluidised by an oxygen-containing gas, which entrains the burnt material and removes it from the bed. The sulphur dioxide content of the roasting gas formed is maintained at at least 12%. Immediately the reaction products leave the furnace any reaction between the burnt material and the vaporized arseniferrous compounds, chiefly As2O3, is inhibited, either by physically separating the burnt material from the gases, or by rapidly cooling to below 300 DEG C., for example with water.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE857867X | 1956-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB857867A true GB857867A (en) | 1961-01-04 |
Family
ID=20362900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB38547/57A Expired GB857867A (en) | 1956-12-11 | 1957-12-11 | Improvements in and relating to the roasting of arseniferous minerals, such as pyrites |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB857867A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3386815A (en) * | 1964-11-06 | 1968-06-04 | Boliden Ab | Process for roasting iron sulfide materials |
-
1957
- 1957-12-11 GB GB38547/57A patent/GB857867A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3386815A (en) * | 1964-11-06 | 1968-06-04 | Boliden Ab | Process for roasting iron sulfide materials |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB992855A (en) | Working up iron pyrite | |
| GB1281284A (en) | A process for pyrometallurgically treating sulphidic iron ores or iron ore concentrates | |
| GB857867A (en) | Improvements in and relating to the roasting of arseniferous minerals, such as pyrites | |
| GB929063A (en) | Process for the production of a pigment from titanium oxide and zinc oxide | |
| GB463122A (en) | Recovery of sulphur | |
| GB902140A (en) | Improvements relating to the removal of sulphur from industrial gases | |
| GB980864A (en) | Improved process for the beneficiation of ores | |
| GB755344A (en) | A continuous process for the roasting of arsenopyrites ores | |
| GB758956A (en) | A continuous process for the production of sulphur, or sulphur and sulphur dioxide, from pyrites ores | |
| GB702281A (en) | Improvements in or relating to the manufacture of sulphur dioxide | |
| GB755259A (en) | A continuous process for the roasting of arsenopyrites ores | |
| GB708403A (en) | Apparatus for the production of gases containing sulphur dioxide by roasting | |
| GB879702A (en) | Process for cooling arsenic containing roasting gases | |
| GB755697A (en) | Process for roasting sulphide-bearing solids | |
| GB917480A (en) | Process for roasting finely divided iron sulphides | |
| GB857350A (en) | A process for the treatment of iron pyrites ores containing arsenic and lead | |
| GB930448A (en) | Process for the stagewise fluidized bed roasting of sulfidic iron minerals | |
| GB1010452A (en) | Process for hardening carbonaceous briquettes | |
| ES382629A1 (en) | Procedure to separate chlorine mixtures and sulfurous anhydride that, eventually, can carry air. (Machine-translation by Google Translate, not legally binding) | |
| GB997283A (en) | Method for obtaining high quality briquettes from iron-containing dusts | |
| ES286446A1 (en) | Fluidized bed procedure for the tissue of iron to magnetite pirate with simultaneous reduction of ferrous oxides to magnetite (Machine-translation by Google Translate, not legally binding) | |
| GB809995A (en) | An improved process for heat-treating pellets of finely divided mineral solids | |
| GB741249A (en) | Improvements in or relating to the smelting of zinc and lead-containing materials | |
| ES240087A3 (en) | A practical process for producing free sulfur dioxide gas, sulfur trioxide and sulfur gas from pirate (Machine-translation by Google Translate, not legally binding) | |
| GB811859A (en) | Improvements in the production of gases containing sulphur dioxide by stepwise roasting of iron sulphidic ores containing arsenic and/or antimony in fluidised layers with the recovery of roasting residues practically free from arsenic and antimony |