Process for the preparation of ultrapure active metal fluorides

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United States of America Patent

PATENT NO 4752454
SERIAL NO

06686774

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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This invention provides a method for the preparation of ultrapure active metal fluorides of increased purity from their metal oxides by reacting an active metal with a predetermined amount of HF(aq) to form a solid reaction product which is dried under controlled heating to form a hydrated fluoride. This hydrated active metal fluoride is then subjected to reactive atmosphere processing comprising hydrofluoric acid vapor in a CO.sub.2 reactive carrier gas and a selected fluoride compound in the gas phase for a predetermined period of time to further increase anion purity.

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Patent Owner(s)

Patent OwnerAddress
HUGHES ELECTRONICS CORPORATIONP O BOX 956 200 N SEPULVEDA BLVD EL SEGUNDO CA 90245

International Classification(s)

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  • 1984 Application Filing Year
  • C01G Class
  • 127 Applications Filed
  • 0 Patents Issued To-Date
  • 0 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances19840255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gorre, Luisa E Oxnard, CA 15 150
Pastor, Ricardo C Manhattan Beach, CA 35 369

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  • 9 Citation Count
  • C01G Class
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  • 37 Age
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