FR2095234B1 - - Google Patents
Info
- Publication number
- FR2095234B1 FR2095234B1 FR7121301A FR7121301A FR2095234B1 FR 2095234 B1 FR2095234 B1 FR 2095234B1 FR 7121301 A FR7121301 A FR 7121301A FR 7121301 A FR7121301 A FR 7121301A FR 2095234 B1 FR2095234 B1 FR 2095234B1
- Authority
- FR
- France
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent materials, e.g. electroluminescent or chemiluminescent
- C09K11/01—Recovery of luminescent materials
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/20—Compounds containing only rare earth metals as the metal element
- C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
- C01F17/218—Yttrium oxides or hydroxides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/20—Compounds containing only rare earth metals as the metal element
- C01F17/206—Compounds containing only rare earth metals as the metal element oxide or hydroxide being the only anion
- C01F17/224—Oxides or hydroxides of lanthanides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F17/00—Compounds of rare earth metals
- C01F17/20—Compounds containing only rare earth metals as the metal element
- C01F17/288—Sulfides
- C01F17/294—Oxysulfides
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Luminescent Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7008683A NL160228C (nl) | 1970-06-13 | 1970-06-13 | Werkwijze voor het terugwinnen van een luminescerend oxisulfide, vanadaat of oxide van ten minste yttrium en/of een element uit de lanthaanreeks. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2095234A1 FR2095234A1 (https=) | 1972-02-11 |
| FR2095234B1 true FR2095234B1 (https=) | 1975-01-17 |
Family
ID=19810318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7121301A Expired FR2095234B1 (https=) | 1970-06-13 | 1971-06-11 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3763050A (https=) |
| JP (1) | JPS543158B1 (https=) |
| BE (1) | BE768448A (https=) |
| CA (1) | CA953903A (https=) |
| FR (1) | FR2095234B1 (https=) |
| GB (1) | GB1287240A (https=) |
| NL (1) | NL160228C (https=) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3864273A (en) * | 1972-11-13 | 1975-02-04 | Gen Electric | Process for reclaiming rare-earth phosphors |
| US3954657A (en) * | 1973-05-14 | 1976-05-04 | Zenith Radio Corporation | Process for reclaiming rare earth oxysulfide phosphor material |
| US3941714A (en) * | 1974-12-23 | 1976-03-02 | Gte Sylvania Incorporated | Process for reclaiming rare earth oxysulfide phosphors |
| DE2720668C3 (de) * | 1977-05-07 | 1980-03-27 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Verfahren und Vorrichtung zum Isolieren eines Seltene-Erden-Oxysulfid-Leuchtstoffes aus dem Sediment der Schirmraumabflußkanäle |
| US4386056A (en) * | 1982-07-30 | 1983-05-31 | Westinghouse Electric Corp. | Recovery of yttrium and europium from contaminated solutions |
| US4432948A (en) * | 1982-07-30 | 1984-02-21 | U.S. Philips Corporation | Recovery of yttrium and europium from contaminated solutions |
| US4473488A (en) * | 1982-10-06 | 1984-09-25 | International Standard Electric Corporation | Process for reclaiming rare-earth metallic oxide and/or rare-earth metallic oxysulfide phosphors |
| FR2589850B1 (fr) * | 1985-11-08 | 1990-08-31 | Rhone Poulenc Spec Chim | Perfectionnement a un procede de production d'hydroxydes de terres rares par traitement de minerais contenant des phosphates de terres rares |
| JPH0739577B2 (ja) * | 1990-01-22 | 1995-05-01 | 化成オプトニクス株式会社 | 蛍光体の処理方法 |
| JPH075883B2 (ja) * | 1990-04-21 | 1995-01-25 | 日亜化学工業株式会社 | 蛍光体の再生方法 |
| US5362459A (en) * | 1993-05-17 | 1994-11-08 | Pure-Etch Co. | Neodymium recovery process |
| US8137645B2 (en) * | 2010-02-23 | 2012-03-20 | General Electric Company | Rare earth recovery from fluorescent material and associated method |
| US8282703B2 (en) | 2010-12-20 | 2012-10-09 | General Electric Company | Rare earth recovery from phosphor material and associated method |
| CN102766451A (zh) * | 2012-06-29 | 2012-11-07 | 彩虹集团电子股份有限公司 | 一种ccfl用三基色荧光粉回收粉的再生方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3348924A (en) * | 1964-05-28 | 1967-10-24 | Gen Telephone & Elect | Recovering excess vanadate phosphor removed from a cathodoluminescent screen |
| US3360674A (en) * | 1964-11-23 | 1967-12-26 | Sylvania Electric Prod | Europium and bismuth activated yttrium vanadate phosphor |
| US3368980A (en) * | 1964-12-24 | 1968-02-13 | Gen Telephone & Elect | Method of preparing yttrium oxide phosphors |
| US3474040A (en) * | 1965-06-18 | 1969-10-21 | Sylvania Electric Prod | Phosphor reclamation |
| US3523904A (en) * | 1967-08-28 | 1970-08-11 | Motorola Inc | Process for reclaiming contaminated phosphors |
| US3577351A (en) * | 1969-01-30 | 1971-05-04 | Sylvania Electric Prod | Method for the recovery of rare earth oxides |
| US3625659A (en) * | 1970-05-28 | 1971-12-07 | Sylvania Electric Prod | Phosphor reclamation from a slurry |
-
1970
- 1970-06-13 NL NL7008683A patent/NL160228C/xx active
-
1971
- 1971-06-08 CA CA115,072A patent/CA953903A/en not_active Expired
- 1971-06-10 JP JP4066271A patent/JPS543158B1/ja active Pending
- 1971-06-10 GB GB1990871A patent/GB1287240A/en not_active Expired
- 1971-06-11 BE BE768448A patent/BE768448A/xx not_active IP Right Cessation
- 1971-06-11 FR FR7121301A patent/FR2095234B1/fr not_active Expired
- 1971-06-11 US US3763050D patent/US3763050A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB1287240A (en) | 1972-08-31 |
| JPS543158B1 (https=) | 1979-02-19 |
| DE2126893B2 (de) | 1976-05-26 |
| DE2126893A1 (de) | 1971-12-16 |
| NL7008683A (https=) | 1971-12-15 |
| BE768448A (fr) | 1971-12-13 |
| CA953903A (en) | 1974-09-03 |
| FR2095234A1 (https=) | 1972-02-11 |
| US3763050A (en) | 1973-10-02 |
| NL160228C (nl) | 1979-10-15 |
| NL160228B (nl) | 1979-05-15 |