Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group vib metal
Patent
1994-12-22
1995-11-28
Bos, Steven
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group vib metal
423593, C01G 4100, C01G 300
Patent
active
054705495
ABSTRACT:
A method for making a tungsten-copper composite oxide wherein an amount of an ammonium tungstate and an amount of an oxide or hydroxide of copper are combined without milling to form a mixture. The unmilled mixture is then dehydrated and fired at a temperature and for a time sufficient to form the tungsten-copper composite oxide.
REFERENCES:
V. V. Skorokhod et al., Reaction in the Cu-W-O System, Journal of Inorganic Materials of the Russian Academy of Sciences, vol. 20, No. 3, pp. 458-460 (1984), Mar.
A. K. Basu, F. R. Sale, Copper-tungsten Composite Powders by the Hydrogen Reduction of Copper Tungstate, Journal of Materials Science, 13 (1978) pp. 2703-2711, No Month.
Q. Chongliang et al., A Study on Fine Grain W-Cu Electrode Materials with High Homogeneity, Proceedings of the 13th International Plansee Seminar, Metallwerk Plansee, vol. 1, pp. 461-470(1993), No Month.
V. V. Skorokhod et al., Theory and Technology of Sintering, Thermal, and Chemicothermal Treatment Processes, Poroshkovaya Metallurgiya, No. 9 (249), pp. 9-13 (1983), Sep.
Dorfman Leonid P.
Houck David L.
Kopatz Nelson E.
Scheithauer Michael J.
Bos Steven
Clark Robert F.
Osram Sylvania Inc.
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