BR9402501A - Process for the alkaline-oxidizing disintegration of chromium ore - Google Patents
Process for the alkaline-oxidizing disintegration of chromium oreInfo
- Publication number
- BR9402501A BR9402501A BR9402501A BR9402501A BR9402501A BR 9402501 A BR9402501 A BR 9402501A BR 9402501 A BR9402501 A BR 9402501A BR 9402501 A BR9402501 A BR 9402501A BR 9402501 A BR9402501 A BR 9402501A
- Authority
- BR
- Brazil
- Prior art keywords
- disintegration
- oxidizing
- alkaline
- chromium ore
- ore
- Prior art date
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
- C22B34/00—Obtaining refractory metals
- C22B34/30—Obtaining chromium, molybdenum or tungsten
- C22B34/32—Obtaining chromium
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)
- Inorganic Compounds Of Heavy Metals (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Catalysts (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4320707 | 1993-06-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9402501A true BR9402501A (en) | 1995-01-24 |
Family
ID=6490938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9402501A BR9402501A (en) | 1993-06-23 | 1994-06-22 | Process for the alkaline-oxidizing disintegration of chromium ore |
Country Status (5)
Country | Link |
---|---|
BR (1) | BR9402501A (en) |
DE (1) | DE4417556A1 (en) |
GB (1) | GB2279647B (en) |
IT (1) | IT1270254B (en) |
ZA (1) | ZA944461B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110776011B (en) * | 2019-12-20 | 2021-08-17 | 成都铬科高化工技术有限责任公司 | Method for preparing sodium chromate by low-nitrogen roasting and clinker continuous leaching of chromite |
CN112661186A (en) * | 2020-12-25 | 2021-04-16 | 四川省绵阳市华意达化工有限公司 | Method for bottom blowing oxygen-enriched low-alkali roasting of chromite |
-
1994
- 1994-05-19 DE DE4417556A patent/DE4417556A1/en not_active Withdrawn
- 1994-06-20 IT ITMI941285A patent/IT1270254B/en active IP Right Grant
- 1994-06-22 BR BR9402501A patent/BR9402501A/en not_active Application Discontinuation
- 1994-06-22 GB GB9412491A patent/GB2279647B/en not_active Expired - Fee Related
- 1994-06-22 ZA ZA944461A patent/ZA944461B/en unknown
Also Published As
Publication number | Publication date |
---|---|
ZA944461B (en) | 1995-02-14 |
IT1270254B (en) | 1997-04-29 |
GB2279647A (en) | 1995-01-11 |
ITMI941285A0 (en) | 1994-06-20 |
GB2279647B (en) | 1996-01-10 |
DE4417556A1 (en) | 1995-01-05 |
ITMI941285A1 (en) | 1995-12-20 |
GB9412491D0 (en) | 1994-08-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FF | Decision: intention to grant | ||
HO | Change of classification |
Free format text: ALTERADO DA INT. CL 5 C01G 37/14 |
|
FA11 | Dismissal: dismissal - article 38, par. 2 of industrial property law |