GB1242938A - Purification of iron pyrites cinders - Google Patents
Purification of iron pyrites cindersInfo
- Publication number
- GB1242938A GB1242938A GB3411569A GB3411569A GB1242938A GB 1242938 A GB1242938 A GB 1242938A GB 3411569 A GB3411569 A GB 3411569A GB 3411569 A GB3411569 A GB 3411569A GB 1242938 A GB1242938 A GB 1242938A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cinders
- minutes
- contact time
- haematite
- july
- 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
- C22B1/08—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
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)
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
1,242,938. Purifying roasted iron pyrites. MONTECATINI EDISON S.p.A. 7 July, 1969 [8 July, 1968], No. 34115/69. Heading C1A. Iron pyrites cinders (haematite) is freed from arsenic and non-ferrous metals by reducing the cinders, using air and a carbonaceous fuel, at 850-950‹ C. with a contact time of 30-90 minutes to effect a 10-50% reduction of haematite to magnetite; chlorinating the partially reduced cinders in a fluidized bed at 650-950‹ C. with a contact time of 30-120 minutes in an oxidizing atmosphere such that the oxygen content of the exhaust gases is at least 3% by volume; and then leaching the chlorinated product with a 0À2-2% by wt. aqueous solution of a mineral acid, e.g. HC1 and/or H 2 SO 4 using a liquid/solid weight ratio of at least 2 : 1 and a contact time of 15-30 minutes. The fluidized bed chlorination may be effected in 2 or more stages. If the iron content of the chlorinated cinders is low, they may be subjected to a magnetizing reduction and magnetic concentration before the acid leach. The purified cinders may be pelleted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT1868868 | 1968-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1242938A true GB1242938A (en) | 1971-08-18 |
Family
ID=11153168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3411569A Expired GB1242938A (en) | 1968-07-08 | 1969-07-07 | Purification of iron pyrites cinders |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5025414B1 (en) |
| BE (1) | BE735725A (en) |
| DE (1) | DE1934440C3 (en) |
| ES (1) | ES369240A1 (en) |
| FR (1) | FR2012482A1 (en) |
| GB (1) | GB1242938A (en) |
| NL (1) | NL6910302A (en) |
| SE (1) | SE352656B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1072690A1 (en) * | 1999-07-27 | 2001-01-31 | Anglo American Platinum Corporation Limited | Refining of precious-metal containing concentrates by chlorination |
| CN103088203A (en) * | 2013-03-01 | 2013-05-08 | 罗涛 | Method for producing fine iron powder by sulfate slag |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3003635C2 (en) * | 1980-02-01 | 1985-07-11 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Process and device for dearsenic materials containing arsenic |
| GB2125019A (en) * | 1982-08-10 | 1984-02-29 | Samim Soc Azionaria Minero Met | Process for dressing sulphide- containing ores |
-
1969
- 1969-07-04 SE SE951469A patent/SE352656B/xx unknown
- 1969-07-04 NL NL6910302A patent/NL6910302A/xx unknown
- 1969-07-07 FR FR6922939A patent/FR2012482A1/fr not_active Withdrawn
- 1969-07-07 BE BE735725D patent/BE735725A/xx unknown
- 1969-07-07 GB GB3411569A patent/GB1242938A/en not_active Expired
- 1969-07-07 ES ES369240A patent/ES369240A1/en not_active Expired
- 1969-07-07 DE DE19691934440 patent/DE1934440C3/en not_active Expired
- 1969-07-08 JP JP5405569A patent/JPS5025414B1/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1072690A1 (en) * | 1999-07-27 | 2001-01-31 | Anglo American Platinum Corporation Limited | Refining of precious-metal containing concentrates by chlorination |
| US6344067B1 (en) | 1999-07-27 | 2002-02-05 | Anglo American Platinum Corporation, Limited | Refining |
| CN103088203A (en) * | 2013-03-01 | 2013-05-08 | 罗涛 | Method for producing fine iron powder by sulfate slag |
| CN103088203B (en) * | 2013-03-01 | 2015-08-12 | 罗涛 | The method of Iron concentrate is produced with sulfate slag |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2012482A1 (en) | 1970-03-20 |
| DE1934440C3 (en) | 1979-11-29 |
| ES369240A1 (en) | 1971-05-16 |
| SE352656B (en) | 1973-01-08 |
| BE735725A (en) | 1970-01-07 |
| JPS5025414B1 (en) | 1975-08-23 |
| DE1934440A1 (en) | 1970-05-21 |
| NL6910302A (en) | 1970-01-12 |
| DE1934440B2 (en) | 1979-03-08 |
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