Method of producing tungsten carbide
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
N/A
app pub date -
Sep 5, 2006
filing date -
Dec 20, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention relates to a method of producing tungsten carbide by gas phase direct carburization of a tungsten-oxide containing starting material, wherein the starting material is reacted with a reaction gas at an increased temperature. The starting material is first heated to a first temperature greater than or equal to 600.degree. C., before reacting with a reaction gas while increasing the temperature to a second temperature that does not exceed 850.degree. C., wherein the reaction gas is selected from the group consisting of CO and a COH.sub.2 gas mixture comprising up to 20% by volume H.sub.2.
First Claim
Other Claims data not available