DE69119028D1 - Verfahren zum Herstellen von Chrom hoher Reinheit - Google Patents
Verfahren zum Herstellen von Chrom hoher ReinheitInfo
- Publication number
- DE69119028D1 DE69119028D1 DE69119028T DE69119028T DE69119028D1 DE 69119028 D1 DE69119028 D1 DE 69119028D1 DE 69119028 T DE69119028 T DE 69119028T DE 69119028 T DE69119028 T DE 69119028T DE 69119028 D1 DE69119028 D1 DE 69119028D1
- Authority
- DE
- Germany
- Prior art keywords
- metallic chromium
- chromium
- mixture
- heated
- crude metallic
- 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 - Fee Related
Links
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title abstract 8
- 229910052804 chromium Inorganic materials 0.000 title abstract 8
- 239000011651 chromium Substances 0.000 title abstract 8
- 239000000203 mixture Substances 0.000 abstract 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 3
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 abstract 3
- 238000007872 degassing Methods 0.000 abstract 3
- 239000012535 impurity Substances 0.000 abstract 3
- 239000011261 inert gas Substances 0.000 abstract 3
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 3
- 229910003470 tongbaite Inorganic materials 0.000 abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 239000000843 powder Substances 0.000 abstract 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- 150000007522 mineralic acids Chemical class 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 150000007524 organic acids Chemical class 0.000 abstract 1
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)
- Carbon And Carbon Compounds (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28356390A JPH04160124A (ja) | 1990-10-23 | 1990-10-23 | 高純度金属クロムの製造方法 |
JP1036391A JPH04235229A (ja) | 1991-01-07 | 1991-01-07 | 高純度金属クロムの製造方法 |
JP1036491A JPH07116532B2 (ja) | 1991-01-07 | 1991-01-07 | 高純度金属クロムの製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69119028D1 true DE69119028D1 (de) | 1996-05-30 |
DE69119028T2 DE69119028T2 (de) | 1996-12-19 |
Family
ID=27278939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69119028T Expired - Fee Related DE69119028T2 (de) | 1990-10-23 | 1991-10-10 | Verfahren zum Herstellen von Chrom hoher Reinheit |
Country Status (4)
Country | Link |
---|---|
US (1) | US5259866A (de) |
EP (1) | EP0482808B1 (de) |
AT (1) | ATE137273T1 (de) |
DE (1) | DE69119028T2 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5391215A (en) * | 1992-08-03 | 1995-02-21 | Japan Metals & Chemicals Co., Ltd. | Method for producing high-purity metallic chromium |
US5866067A (en) * | 1997-03-24 | 1999-02-02 | Sony Corporation And Materials Research Corporation | High purity chromium metal by casting with controlled oxygen content |
US20090162273A1 (en) * | 2007-12-21 | 2009-06-25 | Howmedica Osteonics Corp. | Chromium oxide powder having a reduced level of hexavalent chromium and a method of making the powder |
US10041146B2 (en) | 2014-11-05 | 2018-08-07 | Companhia Brasileira de Metalurgia e Mineraçäo | Processes for producing low nitrogen metallic chromium and chromium-containing alloys and the resulting products |
US9771634B2 (en) | 2014-11-05 | 2017-09-26 | Companhia Brasileira De Metalurgia E Mineração | Processes for producing low nitrogen essentially nitride-free chromium and chromium plus niobium-containing nickel-based alloys and the resulting chromium and nickel-based alloys |
TWI607968B (zh) * | 2016-09-23 | 2017-12-11 | 國家中山科學研究院 | 一種碳化物原料合成之製備方法 |
CN111500878A (zh) * | 2020-04-30 | 2020-08-07 | 渤海大学 | 一种利用碳化铬制备金属铬的方法 |
CN111922350B (zh) * | 2020-09-22 | 2021-01-01 | 西安斯瑞先进铜合金科技有限公司 | 一种低盐酸不溶物金属铬粉的制备方法 |
CN111922351B (zh) * | 2020-09-23 | 2021-01-01 | 西安斯瑞先进铜合金科技有限公司 | 一种高纯低氧金属铬粉的制备方法 |
CN115323217A (zh) * | 2022-08-23 | 2022-11-11 | 陕西斯瑞新材料股份有限公司 | 一种低成本CuCr25触头材料的制备方法 |
CN116640937B (zh) * | 2023-05-31 | 2024-05-28 | 湖北旌冶科技有限公司 | 一种高质量金属铬的冶炼方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2242759A (en) * | 1938-03-02 | 1941-05-20 | Walter H Duisberg | Reduction of difficultly reducible oxides |
US2833645A (en) * | 1955-08-19 | 1958-05-06 | Union Carbide Corp | Reduction of chromium oxides |
US2890952A (en) * | 1955-11-04 | 1959-06-16 | Lummus Co | Method of refining metals |
US2939784A (en) * | 1958-09-26 | 1960-06-07 | Union Carbide Corp | Process for elimination of sulfur from metals |
US2995439A (en) * | 1959-02-02 | 1961-08-08 | Union Carbide Corp | Preparation of high purity chromium and other metals |
US3271139A (en) * | 1962-04-10 | 1966-09-06 | Union Carbide Corp | Process for the production of low sulfur ferrochromium |
US3158464A (en) * | 1963-05-23 | 1964-11-24 | Union Carbide Corp | Ferrochromium production |
DE1254363B (de) * | 1964-12-10 | 1967-11-16 | Elektrometallurgie M B H Ges | Verfahren zur Reduktion von oxydischen Rohstoffen |
WO1989001532A1 (en) * | 1987-08-13 | 1989-02-23 | Nkk Corporation | Process for melt reduction of cr starting material and melt reduction furnace |
JPH0283563A (ja) * | 1988-09-21 | 1990-03-23 | Seiko Epson Corp | 現像装置 |
JPH0310364A (ja) * | 1989-06-07 | 1991-01-17 | Nec Eng Ltd | マルチcpu回路 |
JPH0310363A (ja) * | 1989-06-08 | 1991-01-17 | Nippon Steel Corp | 並列計算機における待ち時間設定方法 |
US5133947A (en) * | 1990-03-02 | 1992-07-28 | Occidental Chemical Corporation | Hydrous trivalent chromium oxide/carbon particles and method of making the same |
-
1991
- 1991-06-24 US US07/719,625 patent/US5259866A/en not_active Expired - Fee Related
- 1991-10-10 EP EP91309433A patent/EP0482808B1/de not_active Expired - Lifetime
- 1991-10-10 AT AT91309433T patent/ATE137273T1/de not_active IP Right Cessation
- 1991-10-10 DE DE69119028T patent/DE69119028T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0482808B1 (de) | 1996-04-24 |
ATE137273T1 (de) | 1996-05-15 |
DE69119028T2 (de) | 1996-12-19 |
EP0482808A1 (de) | 1992-04-29 |
US5259866A (en) | 1993-11-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |