Method for reducing impurities in misch metal and alloys

Details Method for reducing impurities in misch metal and alloys Method for reducing impurities in misch metal and alloys

1997-07-08

1999-10-26

Andrews, Melvyn

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

420416, 420590, 429 49, C22B 5900

Patent

active

059720743

ABSTRACT:
A method for reducing Carbon contained in hydrogen storage alloys recovered from negative electrodes of nickel/hydrogen storage alloy secondary batteries of misch metal and alloys thereof as raw materials of hydrogen storage alloys for negative electrodes of nickel/hydrogen secondary batteries by adding titanium or zirconium or oxides of these elements, and melting in an inert gas atmosphere or in vacuum.

REFERENCES:
patent: 1023208 (1912-04-01), Lesmuller
patent: 5174811 (1992-12-01), Schmidt et al.

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