ATE20542T1 - Verfahren zur wiedergewinnung von wolfram. - Google Patents
Verfahren zur wiedergewinnung von wolfram.Info
- Publication number
- ATE20542T1 ATE20542T1 AT83304822T AT83304822T ATE20542T1 AT E20542 T1 ATE20542 T1 AT E20542T1 AT 83304822 T AT83304822 T AT 83304822T AT 83304822 T AT83304822 T AT 83304822T AT E20542 T1 ATE20542 T1 AT E20542T1
- Authority
- AT
- Austria
- Prior art keywords
- tungsten
- moles
- per mole
- hydrogen peroxide
- solution
- 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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
- C22B7/007—Wet processes by acid leaching
-
- 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
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Carbon And Carbon Compounds (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8225261 | 1982-09-04 | ||
EP19830304822 EP0106456B1 (de) | 1982-09-04 | 1983-08-22 | Verfahren zur Wiedergewinnung von Wolfram |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE20542T1 true ATE20542T1 (de) | 1986-07-15 |
Family
ID=10532699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT83304822T ATE20542T1 (de) | 1982-09-04 | 1983-08-22 | Verfahren zur wiedergewinnung von wolfram. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4533527A (de) |
EP (1) | EP0106456B1 (de) |
JP (1) | JPS5967329A (de) |
AT (1) | ATE20542T1 (de) |
DE (1) | DE3364269D1 (de) |
IL (1) | IL69542A (de) |
ZA (1) | ZA836378B (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0610091B2 (ja) * | 1984-05-25 | 1994-02-09 | 株式会社日立製作所 | ヘテロポリ酸及びそれを乾固させて得られる膜を有するエレクトロクロミック表示素子 |
DE3662916D1 (en) * | 1985-03-04 | 1989-05-24 | Toshiba Kk | Methods for preparing high-purity molybdenum or tungsten powder and high-purity oxides powder of the same |
GB8508334D0 (en) * | 1985-03-29 | 1985-05-09 | Interox Chemicals Ltd | Tungsten recovery |
GB8508335D0 (en) * | 1985-03-29 | 1985-05-09 | Interox Chemicals Ltd | Tungsten recovery |
US5061599A (en) * | 1986-06-11 | 1991-10-29 | Hitachi, Ltd. | Radiation sensitive materials |
AU587905B2 (en) * | 1986-06-25 | 1989-08-31 | University Of Melbourne, The | Reduction of acid consumers in tungsten ore treatment |
JPH0738042B2 (ja) * | 1986-09-08 | 1995-04-26 | 株式会社日立製作所 | 微小光学部品材料 |
IL121475A0 (en) * | 1997-08-05 | 1998-02-08 | Kopylov Nely | Method of disintegrating sintered carbide without coating and refining of recovered carbide powder |
US6395241B1 (en) | 2000-11-03 | 2002-05-28 | Om Group, Inc. | Process for recovering the carbide metal from metal carbide scrap |
BR112012009805A2 (pt) * | 2009-10-26 | 2016-11-22 | Minpro Aktiebolag | reciclagem de carbetos de tungstênio |
CN115282272A (zh) * | 2022-07-18 | 2022-11-04 | 东北林业大学 | 一种基于纳米碳化钨的多酸纳米粒子及其制备方法和应用 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2485175A (en) * | 1945-06-07 | 1949-10-18 | Trapp George Joseph | Method of recovering hard metal carbides from sintered masses |
US2704240A (en) * | 1951-10-23 | 1955-03-15 | American Brake Shoe Co | Process of preparing tungstic oxide from sintered masses containing tungsten carbide |
US3438730A (en) * | 1966-11-14 | 1969-04-15 | Warren M Shwayder | Method of disintegrating sintered hard carbide masses |
BE786723A (de) * | 1971-08-05 | 1973-01-26 | Cipel | |
JPS5410273B2 (de) * | 1973-06-28 | 1979-05-02 | ||
JPS5423643A (en) * | 1977-07-22 | 1979-02-22 | Aikawa Tekko | Doctor blade stablizing apparatus |
US4406866A (en) * | 1982-09-20 | 1983-09-27 | Gte Products Corporation | Recovery of refractory metal values from scrap cemented carbide |
-
1983
- 1983-08-17 US US06/523,956 patent/US4533527A/en not_active Expired - Fee Related
- 1983-08-22 DE DE8383304822T patent/DE3364269D1/de not_active Expired
- 1983-08-22 EP EP19830304822 patent/EP0106456B1/de not_active Expired
- 1983-08-22 IL IL6954283A patent/IL69542A/xx not_active IP Right Cessation
- 1983-08-22 AT AT83304822T patent/ATE20542T1/de not_active IP Right Cessation
- 1983-08-29 ZA ZA836378A patent/ZA836378B/xx unknown
- 1983-09-05 JP JP58163094A patent/JPS5967329A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US4533527A (en) | 1985-08-06 |
IL69542A (en) | 1987-01-30 |
JPS5967329A (ja) | 1984-04-17 |
EP0106456A1 (de) | 1984-04-25 |
EP0106456B1 (de) | 1986-06-25 |
ZA836378B (en) | 1984-04-25 |
DE3364269D1 (en) | 1986-07-31 |
IL69542A0 (en) | 1983-11-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE20542T1 (de) | Verfahren zur wiedergewinnung von wolfram. | |
JPS53102279A (en) | Electrode body | |
KR840006192A (ko) | 옥살산 디에스테르의 제조방법 | |
GB1417730A (en) | Recovery of molybdenum from spent catalyst | |
ES438644A1 (es) | Un procedimiento para mejorar la calidad de material solido. | |
ES8401004A1 (es) | Procedimiento para la obtencion de trimetilolpropano. | |
ATE43629T1 (de) | Verfahren zur extraktion von hopfeninhaltsstoffen. | |
ES8503401A1 (es) | Procedimiento para la lixiviacion en monton | |
ES451621A1 (es) | Procedimiento para disociar poliuretanos celulares y no ce- lulares. | |
KR840004169A (ko) | 프로인슐린 전구물질 유사체로부터 인슐린을 제조하는 방법 | |
DE3782319D1 (de) | Verfahren zur herstellung von hochreinem zirkonoxid aus kieselsaeurearmen zirkoniumeisenhaltigen stoffen. | |
ATE25662T1 (de) | Verfahren zur reinigung von benzoesaeure. | |
KR910007807A (ko) | 옥소합성(oxo synthesis)후 증류 잔존물로 부터의 로듐 회수 공법 | |
JPS5226400A (en) | Process for recovering valuable metals from metallic scraps as simple carbide or as solid solution | |
SE7410168L (de) | ||
IE813088L (en) | Preparation of chlorinated phenoxyalkanoic acids. | |
FR2435282A1 (fr) | Procede d'extraction par lavage de gaz acides a partir de melanges gazeux a l'aide d'hexamethylenediamine | |
GB1514807A (en) | Process for preparing sulphur dioxide | |
JPS5614424A (en) | Recovering method for platinum group element from platinum type catalyst | |
JPS56104878A (en) | Manufacture of alphaaepoxide having ccatom numbers of 11124 | |
SU514011A1 (ru) | Стимул тор растворени гипсовоуглеводородных отложений | |
GB1143797A (de) | ||
GB1449314A (en) | Production of piperitenone | |
ES415060A1 (es) | Un procedimiento para extraer fluoruro de hidrogeno de un gas que lo contiene. | |
IE36829B1 (en) | Process for the preparation of penicillamine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification | ||
REN | Ceased due to non-payment of the annual fee |