CA969347A - Method of recovering a rare earth phosphor - Google Patents

Method of recovering a rare earth phosphor

Info

Publication number
CA969347A
CA969347A CA115,070A CA115070A CA969347A CA 969347 A CA969347 A CA 969347A CA 115070 A CA115070 A CA 115070A CA 969347 A CA969347 A CA 969347A
Authority
CA
Canada
Prior art keywords
recovering
rare earth
earth phosphor
phosphor
rare
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
Application number
CA115,070A
Other versions
CA115070S (en
Inventor
Dirk Barneveld
Johannes A.M. Dikhoff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of CA969347A publication Critical patent/CA969347A/en
Expired legal-status Critical Current

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, e.g. electroluminescent, chemiluminescent materials
    • 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
    • C01F17/288—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)
CA115,070A 1970-06-13 1971-06-08 Method of recovering a rare earth phosphor Expired CA969347A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7008684A NL7008684A (en) 1970-06-13 1970-06-13

Publications (1)

Publication Number Publication Date
CA969347A true CA969347A (en) 1975-06-17

Family

ID=19810319

Family Applications (1)

Application Number Title Priority Date Filing Date
CA115,070A Expired CA969347A (en) 1970-06-13 1971-06-08 Method of recovering a rare earth phosphor

Country Status (7)

Country Link
JP (1) JPS524513B1 (en)
BE (1) BE768449A (en)
CA (1) CA969347A (en)
DE (1) DE2126892C3 (en)
FR (1) FR2095235B1 (en)
GB (1) GB1333329A (en)
NL (1) NL7008684A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2448498C3 (en) * 1974-10-11 1981-11-12 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Process for the recovery of a rare earth oxide phosphor
US9234128B2 (en) * 2012-08-27 2016-01-12 General Electric Company Chemical bleaching for improved performance of recycled lamp phosphors

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3523904A (en) * 1967-08-28 1970-08-11 Motorola Inc Process for reclaiming contaminated phosphors

Also Published As

Publication number Publication date
NL7008684A (en) 1971-12-15
JPS524513B1 (en) 1977-02-04
GB1333329A (en) 1973-10-10
FR2095235B1 (en) 1976-03-19
DE2126892C3 (en) 1979-01-04
BE768449A (en) 1971-12-13
DE2126892B2 (en) 1978-05-03
FR2095235A1 (en) 1972-02-11
DE2126892A1 (en) 1971-12-16

Similar Documents

Publication Publication Date Title
CA953903A (en) Method of recovering a rare earth phosphor
CA960871A (en) Metal recovery method
CA940448A (en) Method for insulating a well
CA969347A (en) Method of recovering a rare earth phosphor
CA956450A (en) Method of manufacturing a luminescent oxysulphide
CA971345A (en) Method of forming a spacer-expander
CA930153A (en) Method for preparing a rare earth phosphor
AU466752B2 (en) Method of recovering a rare earth phospher
AU2983171A (en) Method of recovering a rare earth phospher
CA948986A (en) Method for sealing earth formations
AU2824171A (en) Gas recovery method
CA956781A (en) Preparation of rare earth metal phosphates
CA996945A (en) Bisorganoalkaline earth compounds and a method of preparing same from bisorganomercurials
SU604905A1 (en) Method of enlarging borehole
CA916397A (en) Method for the recovery of rare earth oxides
CA867662A (en) Process for recovering rare earth metal values
CA824132A (en) Method of producing rare earth oxyfluoride
CA838019A (en) Method of producing luminescent alkaline earth halophosphates
CA928508A (en) Rare earth intermetallic compounds produced by a reduction-fusion process
CA850002A (en) Method of preparing phosphors
CA852121A (en) Method of preparing phosphors
CA931384A (en) Rare earth intermetallic compounds by reduction-diffusion process
CA834061A (en) Method of preparing an alkaline earth halophosphate
CA831485A (en) Method of making crystals of rare earth chalcogenides
CA831950A (en) Recovery of spent etchants