Gte Products Corporation

Osram Sylvania Inc.

Thomas R Pinkowski

James N Christini

Geoffrey L Harris

Mary E Shaffer

Edward R Kimmel

David C Sheppeck

Jeffrey A Eckert

A method is provided for producing molybdenum metal powders having consistently high tap densities. The method involves doping an ammonium molybdate solution with a soluble potassium compound, forming an ammonium dimolybdate precipitate and reducing the precipitate to form a metal powder.

Method for increasing tap density of molybdenum powder

Tungsten carbide is produced by mixing tungsten oxide or ammonium paratungstate with carbon to form a mixture which is substantially reduced in a non-reducing atmosphere in the presence of sufficient carbon to produce a carbon content in the resulting mixture of less than seven percent by weight, and adding sufficient carbon to the resulting reduced mixture to increase the carbon content to at least the stoichiometric amount needed to form monotungsten carbide prior to carburization of the mixture to monotungsten carbide.

Method of producing monotungsten carbide powder

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Sayre, PA, United States of America

Thomas R Pinkowski