Intermetallic compounds and metal purification

Details Intermetallic compounds and metal purification Intermetallic compounds and metal purification

1972-06-23

1976-11-30

Schafer, Richard E.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 63, 75 66, 75 67A, 75 84, C22B 6002, C22B 700, C22B 2620

Patent

active

039947181

ABSTRACT:
By thoroughly mixing a compound of a base metal with a metal of the eighth subgroup of the Periodic Table, heating the resultant to a temperature in excess of 800.degree. C at which it is subjected to a stream of hydrogen and treating thus-obtained intermetallic compound at a still higher temperature and under a high vacuum, a base metal having a purity of at least 98 percent results. When the base metal is an actinide, an alloy or a mixture of alloy and intermetallic compound may be obtained in lieu of the indicated intermetallic compound.

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patent: 3625779 (1971-12-01), Cech
patent: 3748193 (1973-07-01), Cech
Bronger, W. Journal of Less-Common Metals, vol. 12, No. 1, Jan. 1961, pp. 63-68.
Schulz, Von H. Zeitschrift fur Anorg. und Allge. Chem. vol. 357, pp. 299-313, Apr. 1968.
Shunk, F. A. Constitution of Binary Alloys, Second Supp., McGraw-Hill, N.Y. 1969, pp. 37-39.

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