GB350625A - Process and apparatus for the reduction of pyritic ores - Google Patents
Process and apparatus for the reduction of pyritic oresInfo
- Publication number
- GB350625A GB350625A GB1024530A GB1024530A GB350625A GB 350625 A GB350625 A GB 350625A GB 1024530 A GB1024530 A GB 1024530A GB 1024530 A GB1024530 A GB 1024530A GB 350625 A GB350625 A GB 350625A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphur
- furnace
- arsenic
- pyritic
- smelting
- 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
- C22B30/00—Obtaining antimony, arsenic or bismuth
- C22B30/04—Obtaining arsenic
-
- 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
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/0028—Smelting or converting
- C22B15/003—Bath smelting or converting
- C22B15/0032—Bath smelting or converting in shaft furnaces, e.g. blast furnaces
-
- 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
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/0028—Smelting or converting
- C22B15/0052—Reduction smelting or converting
-
- 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Sulphur, and if present arsenic, are recovered from pyritic ores by smelting the ore in a blast furnace with fluxes and solid-reducing means in such proportion that a pyritic or a partial pyritic smelting takes place in the lower part of the furnace while higher up the reducing means is completely or substantially consumed by sulphur dioxide with or without arsenious oxide and oxygen to give elementary sulphur with or without arsenic which is condensed outside the furnace. The arsenic is obtained as a sulphur arsenic combination. The air at the tuyeres may be mixed with sulphur dioxide produced at the roasting of the matte obtained in the furnace and of any ore too fine for smelting directly. The gases leaving the furnace consist of nitrogen, carbondioxide, sulphur with or without arsenic, and small quantities of hydrogen sulphide, sulphur dioxides, and carbonyl sulphide.ALSO:Sulphur and if present copper and arsenic are recovered from pyritic ores by smelting the ore in a blast furnace with fluxes and solid reducing means in such proportion that a pyritic or a partial pyritic smelting takes place in the lower part of the furnace while higher up the reducing means is completely or substantially consumed by sulphur dioxide with or without arsenious oxide and oxygen to give elementary sulphur with or without arsenic which are condensed on leaving the furnace. In the lower part of the furnace the greater part of the iron as well as the sulphur is oxidized and forms a slag with the fluxes. Sulphur not burnt in this part combines with any copper present and unoxidized iron to give a matte. The gases leaving the furnace consist of nitrogen, carbon dioxide, sulphur with or without arsenic, and small quantities of hydrogen sulphide, sulphur dioxide, and carbonyl sulphide and are led to a condenser to recover the sulphur and arsenic when present as a sulphur-arsenic combination. Dust is removed in a Cottrell apparatus. The air at the tuyeres may be mixed with sulphur-dioxide produced at the roasting of the matte obtained in the furnace and of any ore too fine for smelting directly.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1024530A GB350625A (en) | 1930-03-31 | 1930-03-31 | Process and apparatus for the reduction of pyritic ores |
| CY2131A CY21A (en) | 1930-03-31 | 1931-11-02 | Process and apparatus for the reduction of pyritic ores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1024530A GB350625A (en) | 1930-03-31 | 1930-03-31 | Process and apparatus for the reduction of pyritic ores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB350625A true GB350625A (en) | 1931-06-18 |
Family
ID=9964295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1024530A Expired GB350625A (en) | 1930-03-31 | 1930-03-31 | Process and apparatus for the reduction of pyritic ores |
Country Status (2)
| Country | Link |
|---|---|
| CY (1) | CY21A (en) |
| GB (1) | GB350625A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3948639A (en) * | 1972-10-26 | 1976-04-06 | Outokumpu Oy | Process and device for flash smelting sulphide ores and concentrates |
-
1930
- 1930-03-31 GB GB1024530A patent/GB350625A/en not_active Expired
-
1931
- 1931-11-02 CY CY2131A patent/CY21A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3948639A (en) * | 1972-10-26 | 1976-04-06 | Outokumpu Oy | Process and device for flash smelting sulphide ores and concentrates |
Also Published As
| Publication number | Publication date |
|---|---|
| CY21A (en) | 1931-11-02 |
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