Intermetallic compounds and metal purification

Details Intermetallic compounds and metal purification Intermetallic compounds and metal purification

1974-05-30

1978-04-04

Padgett, Benjamin R.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

423250, C22C 4300

Patent

active

040825477

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.

REFERENCES:
erdmann, Bernhard; "Preparation... Reduction" Oct. 1971 as Abstracted in Nuclear Science Abstracts, vol. 26, No. 23287.
V. I. Kutaitsev et al., "Phase... IB" Soviet Atomic Energy, vol. 23, pp. 1279-1287, 1967.
Bronger, W. "Preparation... Metals," J. Less-Common Metals, vol. 12 (1967), pp. 63-68.
Dwight, A. E. et al., "Some AB.sub.3 ... Metals," Acta Cryst., 14:75-6 (1961) as abstracted in Nuclear Science Abstracts 15:11627.
Elliott, R. P. Constitution of Binary Alloys, First Supplement McGraw-Hill Book Co., New York, 1965, pp. 751-753.
Shunk, F. A. Constitution of Binary Alloys, Second Supplement McGraw-Hill Book Co., New York, 1969, p. 622.
Cotton, F. A. et al., Advanced Inorganic Chemistry, Interscience Publishers, New York, 1972, pp. 1079-1081.

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