Process for producing niobium metal of an ultrahigh purity

Details Process for producing niobium metal of an ultrahigh purity Process for producing niobium metal of an ultrahigh purity

1986-06-03

1988-01-19

Thexton, Matthew A.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 844, C22B 905

Patent

active

047203005

ABSTRACT:
A process for producing niobium metal of an ultrahigh purity, which comprises iodizing niobium metal or niobium chloride containing at least tantalum as an impurity, thermally reducing the iodized product, and then thermally decomposing the reduced product.

REFERENCES:
patent: 2766112 (1956-10-01), Schafer
patent: 2934426 (1960-04-01), Mayer
patent: 2941867 (1960-06-01), Maurer
patent: 3020128 (1962-02-01), Adcock et al.
patent: 3230077 (1966-01-01), Hiller
patent: 3269830 (1966-08-01), Sutherland
patent: 3539335 (1970-11-01), Svanstrom
patent: 3738824 (1973-06-01), Davis et al.

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