DE3572154D1 - Process for the preparation of ultrapure active metal fluorides - Google Patents

Process for the preparation of ultrapure active metal fluorides

Info

Publication number
DE3572154D1
DE3572154D1 DE8585905141T DE3572154T DE3572154D1 DE 3572154 D1 DE3572154 D1 DE 3572154D1 DE 8585905141 T DE8585905141 T DE 8585905141T DE 3572154 T DE3572154 T DE 3572154T DE 3572154 D1 DE3572154 D1 DE 3572154D1
Authority
DE
Germany
Prior art keywords
preparation
active metal
metal fluorides
ultrapure
ultrapure active
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
DE8585905141T
Other languages
German (de)
English (en)
Inventor
Ricardo Pastor
Luisa Gorre
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.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Application granted granted Critical
Publication of DE3572154D1 publication Critical patent/DE3572154D1/de
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G27/00—Compounds of hafnium
    • C01G27/04—Halides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B9/00—General methods of preparing halides
    • C01B9/08—Fluorides
    • 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
    • C01F15/00—Compounds of thorium
    • 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
    • C01F17/253—Halides
    • C01F17/265—Fluorides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • C01G25/04—Halides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
    • C01P2002/88—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by thermal analysis data, e.g. TGA, DTA, DSC

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
DE8585905141T 1984-12-27 1985-09-26 Process for the preparation of ultrapure active metal fluorides Expired DE3572154D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/686,774 US4752454A (en) 1984-12-27 1984-12-27 Process for the preparation of ultrapure active metal fluorides
PCT/US1985/001834 WO1986004048A1 (en) 1984-12-27 1985-09-26 Process for the preparation of ultrapure active metal fluorides

Publications (1)

Publication Number Publication Date
DE3572154D1 true DE3572154D1 (en) 1989-09-14

Family

ID=24757696

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585905141T Expired DE3572154D1 (en) 1984-12-27 1985-09-26 Process for the preparation of ultrapure active metal fluorides

Country Status (5)

Country Link
US (1) US4752454A (enExample)
EP (1) EP0205454B1 (enExample)
JP (1) JPS62501286A (enExample)
DE (1) DE3572154D1 (enExample)
WO (1) WO1986004048A1 (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986004049A1 (en) * 1984-12-27 1986-07-17 Hughes Aircraft Company Process for the preparation of ultrapure heavy metal fluorides
US5069701A (en) * 1987-07-13 1991-12-03 Hughes Aircraft Company Preparation of fluoride glass by chemical vapor deposition
DE58903259D1 (de) * 1988-05-20 1993-02-25 Siemens Ag Verfahren zur herstellung einer optischen faser hoher festigkeit.
US5200098A (en) * 1988-10-12 1993-04-06 Union Oil Company Of California Cerium-containing lubricating compositions
US5091168A (en) * 1990-08-15 1992-02-25 E. I. Du Pont De Nemours And Company Preparation of anhydrous niobium and tantalum pentafluorides
US5756369A (en) * 1996-07-11 1998-05-26 Lsi Logic Corporation Rapid thermal processing using a narrowband infrared source and feedback
CA2430608C (en) * 2002-06-03 2012-01-10 Praxair Technology, Inc. Carbon dioxide laser resonator gas
US20060115980A1 (en) * 2004-11-30 2006-06-01 Taiwan Semiconductor Manufacturing Company, Ltd. Method for decreasing a dielectric constant of a low-k film
US20110101273A1 (en) * 2005-09-16 2011-05-05 Robert Rewick Process and Composition for Making Rare Earth Doped Particles and Methods of Using Them
EP2058045A3 (en) * 2007-11-02 2011-02-02 Yoosung Co., Ltd. Separation, purification and recovery method of SF6, HFCs and PFCs
US20110061587A1 (en) * 2008-05-16 2011-03-17 Sumito Ishizu Method of producing pretreated metal fluorides and fluoride crystals
US12103860B2 (en) * 2017-02-03 2024-10-01 The South African Nuclear Energy Corporation Soc Limited Preparation process for rare earth metal fluorides

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR496258A (fr) * 1919-02-26 1919-10-31 William Heap Perfectionnements apportés à la fabrication de chlorures métalliques
US2397929A (en) * 1942-12-30 1946-04-09 Rca Corp Reduction in reflection from glass
US2893825A (en) * 1951-04-11 1959-07-07 John G Malm Separation of protactinium from contaminants
US2972513A (en) * 1956-01-13 1961-02-21 Atomenergi Ab Process for the production of anhydrous fluorides
US2991149A (en) * 1957-10-04 1961-07-04 Dow Chemical Co Method of dehydrating hydrates of thorium fluoride
DE1244143B (de) * 1964-11-21 1967-07-13 Kernforschungsanlage Juelich D Verfahren zur Aufbereitung uranhaltiger Kernbrennstoffe
US3460918A (en) * 1968-01-12 1969-08-12 Atomic Energy Commission Method of chlorinating metals with carbon tetrachloride and carbon dioxide
US3748095A (en) * 1968-06-17 1973-07-24 Mc Donnell Douglas Corp Production of high purity rare earth sulfides
US4013796A (en) * 1973-08-27 1977-03-22 The Harshaw Chemical Company Hot-pressed ionic fluoride optical bodies free of absorption bands and method of making them
US4341873A (en) * 1980-03-19 1982-07-27 Hughes Aircraft Company Fluorozirconate, glass and the process for making the same
US4519986A (en) * 1982-01-28 1985-05-28 Hughes Aircraft Company Process for preparation of ultrapure thorium fluoride

Also Published As

Publication number Publication date
JPS62501286A (ja) 1987-05-21
EP0205454B1 (en) 1989-08-09
US4752454A (en) 1988-06-21
WO1986004048A1 (en) 1986-07-17
JPH022808B2 (enExample) 1990-01-19
EP0205454A1 (en) 1986-12-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee