Process for the preparation of pure alloys based on rare earths and transition metals by metallothermy
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United States of America Patent
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Aug 30, 1988
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N/A
app pub date -
Nov 24, 1987
filing date -
Nov 27, 1986
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Expired
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Abstract
An industrial process for the obtaining, preferably without casting, of its of high-purity master alloy based on at least one rare earth and at least one transition metal by metallothermic reduction of a compound of said rare earth by means of a reducing agent such as alkali or alkaline earth metals, characterized in that the transition metal is introduced into the starting reaction mixture, at least in part in the form of a compound which can be reduced by the reducing agent used.
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