PROCESSES FOR PREPARING A CATALYST

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United States of America Patent

APP PUB NO 20100009843A1
SERIAL NO

12563565

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Processes for purifying silicon tetrafluoride source gas by subjecting the source gas to one or more purification processes including: contacting the silicon tetrafluoride source gas with an ion exchange resin to remove acidic contaminants, contacting the silicon tetrafluoride source gas with a catalyst to remove carbon monoxide, by removal of carbon dioxide by use of an absorption liquid, and by removal of inert compounds by cryogenic distillation; catalysts suitable for removal of carbon monoxide from silicon tetrafluoride source gas and processes for producing such catalysts.

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Patent Owner(s)

Patent OwnerAddress
MEMC ELECTRONIC MATERIALS INCST PETERS MO 63376

International Classification(s)

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  • 2009 Application Filing Year
  • B01J Class
  • 2010 Applications Filed
  • 1152 Patents Issued To-Date
  • 57.32 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2009201020112012201320142015201620172018201920202021202220230255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ibrahim, Jameel Humble, US 18 154
Revankar, Vithal Seabrook, US 18 97

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  • B01J Class
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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges4029613443181553211601 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +020406080100120140160180200220240260280300320

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