Inventor

KIM TAI K

27 patents

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KIM TAI K

GTE PROD CORP

Process for purifying molybdenum trioxide

Separating molybdenum values from an aqueous solution containing tungsten by solvent extraction

Method for removing molybdenum from tungstate solutions by solvent extraction

Process for extracting ferric iron from an aqueous solution

Method for removing magnesium and calcium from sodium sulfate solutions

Process for recovering scandium from waste material

Purification of molybdenum

Method of producing crystalline ammonium metatungstate

Method of producing crystalline ammonium metatungstate

Process for purifying molybdenum trioxide

Method of producing crystalline ammonium metatungstate

Method of producing crystalline ammonium metatungstate

Electrolytic method for producing ammonium paratungstate from cemented tungsten carbide

Process for separating molybdenum values from tungsten values

Method of making pure cobalt metal powder substantially free of divalent cationic impurities

Method of producing crystalline ammonium metatungstate

Process for recovering tungsten values from alkali solutions

Recovery of tungsten values from alkali tungstate solutions by solvent extraction

Recovery of tungsten values from alkali tungstate solutions by solvent extraction

Recovery of tungsten values from alkali tungstate solutions by solvent extraction

Rotary calciner feed spiral

Calciner with tapered reverse feed spiral

Removal of ammonia from sodium tungstate solutions

Method for removing organic and tungsten from sodium sulfate solution

Process for extracting tungsten from alkali metal tungstate solutions

GTE SYLVANIA INC

Preparation of heteropoly acids of tungsten and molybdenum

Process for extracting tungsten from alkali metal tungstate solutions