FR2044359A5 - Treatment of ash from roastings of iron - pyrites - Google Patents
Treatment of ash from roastings of iron - pyritesInfo
- Publication number
- FR2044359A5 FR2044359A5 FR6916066A FR6916066A FR2044359A5 FR 2044359 A5 FR2044359 A5 FR 2044359A5 FR 6916066 A FR6916066 A FR 6916066A FR 6916066 A FR6916066 A FR 6916066A FR 2044359 A5 FR2044359 A5 FR 2044359A5
- Authority
- FR
- France
- Prior art keywords
- ash
- pyrites
- roastings
- iron
- treatment
- 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
-
- 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
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)
- Processing Of Solid Wastes (AREA)
Abstract
The ash is fed directly from the roasting chamber to separators which separate out the ash and feed it to fluidised beds where the magnetite in the ash is oxidised to hematite. The bed is maintained at the optimum temp. by heat exchangers. The treated ash is further cooled by a second fluidised bed which is located in the overflow and is then removed from the apparatus by a two valve chamber. The process is economical and the ash so obtained is suitable for further metal recovery treatments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6916066A FR2044359A5 (en) | 1969-05-19 | 1969-05-19 | Treatment of ash from roastings of iron - pyrites |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6916066A FR2044359A5 (en) | 1969-05-19 | 1969-05-19 | Treatment of ash from roastings of iron - pyrites |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2044359A5 true FR2044359A5 (en) | 1971-02-19 |
Family
ID=9034217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR6916066A Expired FR2044359A5 (en) | 1969-05-19 | 1969-05-19 | Treatment of ash from roastings of iron - pyrites |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2044359A5 (en) |
-
1969
- 1969-05-19 FR FR6916066A patent/FR2044359A5/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TP | Transmission of property | ||
| ST | Notification of lapse |