Production of titanium slag

Details Production of titanium slag Production of titanium slag

1998-08-06

1999-12-07

Mai, Ngoclan

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

75613, 75435, 75503, 75 1035, 75 1049, 423 83, C22B 900

Patent

active

059976063

ABSTRACT:
A process for producing titanium slag which is low in radioactivity wherein molten titanium slag, produced by smelting ilmenite in the presence of a reductant in a DC electric arc furnace, is separated from molten iron, boron in an amount which is less than 2.5% equivalent B.sub.2 O.sub.3 of the slag is blended with the molten slag which thereafter is allowed to cool to form a glassy phase which contains the bulk of the radioactive elements of the slag before being crushed to particles below about 1 mm, whereafter the radioactive elements are leached to leave a titanium slag product which is low in radioactivity.

REFERENCES:
patent: 3829309 (1974-08-01), Gomes et al.
patent: 5578109 (1996-11-01), Harris et al.
patent: 5730774 (1998-03-01), Hollitt et al.
patent: 5853452 (1998-12-01), Warner
patent: 5900040 (1999-05-01), Harris et al.

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