NL7204177A - - Google Patents
Info
- Publication number
- NL7204177A NL7204177A NL7204177A NL7204177A NL7204177A NL 7204177 A NL7204177 A NL 7204177A NL 7204177 A NL7204177 A NL 7204177A NL 7204177 A NL7204177 A NL 7204177A NL 7204177 A NL7204177 A NL 7204177A
- Authority
- NL
- Netherlands
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
- C22B34/20—Obtaining niobium, tantalum or vanadium
- C22B34/24—Obtaining niobium or tantalum
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G33/00—Compounds of niobium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G35/00—Compounds of tantalum
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12870671A | 1971-03-29 | 1971-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7204177A true NL7204177A (cg-RX-API-DMAC7.html) | 1972-10-03 |
Family
ID=22436583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7204177A NL7204177A (cg-RX-API-DMAC7.html) | 1971-03-29 | 1972-03-28 |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US3712939A (cg-RX-API-DMAC7.html) |
| AT (1) | AT315521B (cg-RX-API-DMAC7.html) |
| AU (1) | AU469419B2 (cg-RX-API-DMAC7.html) |
| BE (1) | BE781343A (cg-RX-API-DMAC7.html) |
| CA (1) | CA966668A (cg-RX-API-DMAC7.html) |
| DE (1) | DE2214817B2 (cg-RX-API-DMAC7.html) |
| FR (1) | FR2132127B1 (cg-RX-API-DMAC7.html) |
| GB (1) | GB1363953A (cg-RX-API-DMAC7.html) |
| IT (1) | IT952432B (cg-RX-API-DMAC7.html) |
| LU (1) | LU65058A1 (cg-RX-API-DMAC7.html) |
| NL (1) | NL7204177A (cg-RX-API-DMAC7.html) |
| NO (1) | NO129054B (cg-RX-API-DMAC7.html) |
| SE (1) | SE436499B (cg-RX-API-DMAC7.html) |
| ZA (1) | ZA722091B (cg-RX-API-DMAC7.html) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK449074A (da) * | 1974-08-22 | 1976-02-23 | Atomenergikommissionen | Fremgangsmade til udvinding af tantal og/eller niob i fri eller bunden form fra tantal- og niobholdige oplosninger |
| US4164417A (en) * | 1978-04-28 | 1979-08-14 | Kawecki Berylco Industries, Inc. | Process for recovery of niobium values for use in preparing niobium alloy products |
| CA1144376A (fr) * | 1980-06-02 | 1983-04-12 | Gilles Legault | Procede de lixiviation d'un minerai de niobium et ou de tantale |
| JPS62241824A (ja) * | 1986-04-10 | 1987-10-22 | Sumitomo Chem Co Ltd | タンタルとニオブの分離精製方法 |
| BR8703766A (pt) * | 1987-07-20 | 1989-01-31 | Mamore Mineracao E Metalurgica | Processo para a abertura de minerios |
| FR2636939B1 (fr) * | 1988-09-06 | 1991-08-30 | Inst Nat Rech Chimique | Procede perfectionne d'obtention de composes de ta et (ou) nb exempts d'impuretes a partir de materiaux contenant ces metaux |
| US5023059A (en) * | 1988-11-02 | 1991-06-11 | Bielecki Edwin J | Recovery of metal values and hydrofluoric acid from tantalum and columbium waste sludge |
| DE4021207A1 (de) * | 1990-07-03 | 1992-01-16 | Starck Hermann C Fa | Verfahren zur gewinnung und trennung von tantal und niob |
| DE4207145C1 (en) * | 1992-03-06 | 1993-04-29 | H.C. Starck Gmbh & Co Kg, 3380 Goslar, De | Hydro:methallurgical process for recovery of tantalum and niobium - by digesting material e.g. columbite ore with hydrofluoric acid followed by solvent extn. of formed fluoro:complexes |
| US5437848A (en) * | 1992-07-10 | 1995-08-01 | Cabot Corporation | Recovery of metal values from process residues |
| US5620936A (en) * | 1993-12-14 | 1997-04-15 | E. I. Dupont De Nemours And Company | Recovery of spent catalyst |
| WO1995016635A1 (en) * | 1993-12-14 | 1995-06-22 | E.I. Du Pont De Nemours And Company | Recovery of spent catalyst |
| US6338832B1 (en) * | 1995-10-12 | 2002-01-15 | Cabot Corporation | Process for producing niobium and tantalum compounds |
| US5635146A (en) * | 1995-11-30 | 1997-06-03 | Osram Sylvania Inc. | Method for the dissolution and purification of tantalum pentoxide |
| JP4375630B2 (ja) * | 1996-03-26 | 2009-12-02 | キャボット コーポレイション | 不溶性フッ化物を含有するＴａ―Ｎｂ―鉱石材料から金属有価物を可溶化する方法 |
| US6843970B1 (en) | 1996-03-26 | 2005-01-18 | Cabot Corporation | Process for recovering metal values by dissolving them in a sulfuric acid solution containing a carbon source and a reducing agent |
| US7282187B1 (en) * | 1996-03-26 | 2007-10-16 | Caboi Corporation | Recovery of metal values |
| US6010676A (en) * | 1997-09-12 | 2000-01-04 | Osram Sylvania Inc. | Method for making a highly pure tantalum compound |
| RU2149912C1 (ru) * | 1999-12-27 | 2000-05-27 | Закрытое акционерное общество "Росредмет" | Способ получения окислов тугоплавких металлов из лопаритового концентрата |
| US6383459B1 (en) | 2000-08-31 | 2002-05-07 | Osram Sylvania Inc. | Method for purifying a tantalum compound using a fluoride compound and sulfuric acid |
| RU2211871C1 (ru) * | 2001-11-29 | 2003-09-10 | Закрытое акционерное общество "Росредмет" | Способ переработки лопаритового концентрата |
| WO2003046234A1 (fr) * | 2001-11-29 | 2003-06-05 | Viktor Borisovich Petrov | Procede de transformation d'un concentre de loparite |
| US7182925B2 (en) * | 2003-04-24 | 2007-02-27 | Osram Sylvania Inc. | Tantalum concentrates dissolution and purification method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2950966A (en) * | 1958-06-20 | 1960-08-30 | Nat Distillers Chem Corp | Recovery of tantalum values |
| US2953453A (en) * | 1958-06-20 | 1960-09-20 | Nat Distillers Chem Corp | Recovery of columbium values |
-
1971
- 1971-03-29 US US00128706A patent/US3712939A/en not_active Expired - Lifetime
-
1972
- 1972-01-04 SE SE7204034A patent/SE436499B/xx unknown
- 1972-02-01 CA CA133,629A patent/CA966668A/en not_active Expired
- 1972-03-25 DE DE19722214817 patent/DE2214817B2/de not_active Ceased
- 1972-03-28 GB GB1437072A patent/GB1363953A/en not_active Expired
- 1972-03-28 LU LU65058D patent/LU65058A1/xx unknown
- 1972-03-28 AU AU40473/72A patent/AU469419B2/en not_active Expired
- 1972-03-28 FR FR7210835A patent/FR2132127B1/fr not_active Expired
- 1972-03-28 ZA ZA722091A patent/ZA722091B/xx unknown
- 1972-03-28 NL NL7204177A patent/NL7204177A/xx unknown
- 1972-03-28 IT IT49297/72A patent/IT952432B/it active
- 1972-03-28 NO NO01079/72A patent/NO129054B/no unknown
- 1972-03-28 BE BE781343A patent/BE781343A/xx not_active IP Right Cessation
- 1972-03-28 AT AT268472A patent/AT315521B/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CA966668A (en) | 1975-04-29 |
| IT952432B (it) | 1973-07-20 |
| GB1363953A (en) | 1974-08-21 |
| US3712939A (en) | 1973-01-23 |
| ZA722091B (en) | 1972-12-27 |
| NO129054B (cg-RX-API-DMAC7.html) | 1974-02-18 |
| FR2132127B1 (cg-RX-API-DMAC7.html) | 1974-08-02 |
| AT315521B (de) | 1974-05-27 |
| AU469419B2 (en) | 1973-10-04 |
| AU4047372A (en) | 1973-10-04 |
| FR2132127A1 (cg-RX-API-DMAC7.html) | 1972-11-17 |
| SE436499B (sv) | 1984-12-17 |
| BE781343A (fr) | 1972-09-28 |
| DE2214817A1 (de) | 1972-10-12 |
| DE2214817B2 (de) | 1976-05-13 |
| LU65058A1 (cg-RX-API-DMAC7.html) | 1972-12-07 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BN | A decision not to publish the application has become irrevocable |