Method for recovering tungsten

Details Method for recovering tungsten Method for recovering tungsten

2011-08-09

2011-08-09

Mayes, Melvin C (Department: 1732)

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

C423S053000

Reexamination Certificate

active

07993614

ABSTRACT:
A method for recovering tungsten from a reaction mixture obtained by reacting an organic compound with hydrogen peroxide in the presence of a tungsten catalyst comprising blowing a gas into the reaction mixture to precipitate tungstic acid (WO3.H2O) and separating tungstic acid precipitated.

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Extended EP Search Report issued Oct. 25, 2010 from the EP Patent Office in counterpart EP Application No. 06 79 8349.4.
English translation of CN Office Action issued Sep. 9, 2010 in counterpart CN Application No. 200680034562.1.

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