HUP9801502A2 - Eljárás szennyezett wolfrám visszanyerésére - Google Patents
Eljárás szennyezett wolfrám visszanyeréséreInfo
- Publication number
- HUP9801502A2 HUP9801502A2 HU9801502A HUP9801502A HUP9801502A2 HU P9801502 A2 HUP9801502 A2 HU P9801502A2 HU 9801502 A HU9801502 A HU 9801502A HU P9801502 A HUP9801502 A HU P9801502A HU P9801502 A2 HUP9801502 A2 HU P9801502A2
- Authority
- HU
- Hungary
- Prior art keywords
- tungsten
- recovering
- atmosphere
- ancient
- pollutants
- Prior art date
Links
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 title abstract 5
- 229910052721 tungsten Inorganic materials 0.000 title abstract 5
- 239000010937 tungsten Substances 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 3
- 239000007789 gas Substances 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 239000008187 granular material Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 239000004575 stone Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C22B34/36—Obtaining tungsten
- C22B34/365—Obtaining tungsten from spent catalysts
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G41/00—Compounds of tungsten
- C01G41/02—Oxides; Hydroxides
-
- 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
- C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Az eljárás vőlfrám visszanyerésére szőlgál vőlfrám szerkezetianyagőkból, melyek őxidős szennyező anyagőkat tartalmazhatnak. Azeljárás szerint a visszanyerést kémiai gázfázistranszpőrt segítségévelvégzik, és a következő műveleti lépésekből áll: - a vőlfrám szerkezetianyagőt 0,1 mm-1 mm közepes szemcsenagyságúra aprítják; - agranűlátűmőt 1300 řC-1450 řC hőmérsékletre hevítik, védőgáz-atmőszférában; - a védőgázt főkőzatősan vízgőzzel vagy nedveslevegővel helyettesítik; végül - az őxidős vőlfrámőthidrőgénatmőszférában redűkálják, 900řC-1100 řC hőfőkőn. ŕ
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997128490 DE19728490A1 (de) | 1997-07-03 | 1997-07-03 | Verfahren zur Rückgewinnung von dotiertem Wolfram |
Publications (3)
Publication Number | Publication Date |
---|---|
HU9801502D0 HU9801502D0 (en) | 1998-09-28 |
HUP9801502A2 true HUP9801502A2 (hu) | 1999-07-28 |
HUP9801502A3 HUP9801502A3 (en) | 2002-02-28 |
Family
ID=7834571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HU9801502A HUP9801502A3 (en) | 1997-07-03 | 1998-07-02 | Method for recovering polluted tungsten |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0889006B1 (hu) |
AT (1) | ATE210080T1 (hu) |
DE (2) | DE19728490A1 (hu) |
HU (1) | HUP9801502A3 (hu) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1193318B1 (de) * | 2000-09-29 | 2004-03-03 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Verfahren zur Wiederverwertung von aus thoriertem Wolfram bestehenden Gegenständen |
CN106947865B (zh) * | 2016-05-25 | 2018-08-24 | 江西理工大学 | 一种废旧硬质合金高效节能氧化方法 |
CN113737027A (zh) * | 2021-08-19 | 2021-12-03 | 长沙矿冶研究院有限责任公司 | 一种从含钨渣料中回收有价金属的方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE372072C (de) * | 1920-10-24 | 1923-03-20 | Siemens & Halske Akt Ges | Verfahren zur Herstellung von Wolframbronzen |
US1800758A (en) * | 1926-12-31 | 1931-04-14 | Schwarzkopf Paul | Process for the production of chemically-pure tungsten trioxide |
FR1193521A (fr) * | 1957-03-25 | 1959-11-03 | Du Pont | Perfectionnements à l'extraction du tungstène de produits en renfermant |
JPS61291931A (ja) * | 1985-06-05 | 1986-12-22 | ウエスチングハウス エレクトリック コ−ポレ−ション | 不揮発性の汚染物からモリブデンまたはタングステンを分離する方法 |
US5125964A (en) * | 1990-09-10 | 1992-06-30 | General Electric Company | Fluidized bed process for preparing tungsten powder |
-
1997
- 1997-07-03 DE DE1997128490 patent/DE19728490A1/de not_active Withdrawn
-
1998
- 1998-05-14 EP EP19980108769 patent/EP0889006B1/de not_active Expired - Lifetime
- 1998-05-14 DE DE59802295T patent/DE59802295D1/de not_active Expired - Fee Related
- 1998-05-14 AT AT98108769T patent/ATE210080T1/de not_active IP Right Cessation
- 1998-07-02 HU HU9801502A patent/HUP9801502A3/hu unknown
Also Published As
Publication number | Publication date |
---|---|
EP0889006B1 (de) | 2001-12-05 |
HU9801502D0 (en) | 1998-09-28 |
EP0889006A1 (de) | 1999-01-07 |
ATE210080T1 (de) | 2001-12-15 |
HUP9801502A3 (en) | 2002-02-28 |
DE19728490A1 (de) | 1999-01-07 |
DE59802295D1 (de) | 2002-01-17 |
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