2013年6月27日星期四

REDUCTIOIN OF TUNGSTEN OXIDES BY CARBON OR CARBON-CONTAIMNG COMPOIJNDS - 7

Carbothermal reduction of tungsten oxides with carbon monoxide, or gas mixtures of CO/CO2, CO/H2, CH4/H2, C2H4/H2, and C2H4/H2, as well as by reaction between metal oxide vapor and solid carbon have recently attracted attention for produci.ng high surface area tungsten carbides (up to 100m2/g), for use as catalyst, and for nanophase WC/Co composite powders.

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