Process for the recovery of tungsten in a pure form from tungste

Details Process for the recovery of tungsten in a pure form from tungste Process for the recovery of tungsten in a pure form from tungste

1985-04-17

1986-12-16

Carter, H. T.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

423 53, 423 58, 423 61, C01G 4100

Patent

active

046295038

ABSTRACT:
The present invention relates to a simple process for the recovery of pure tungsten at a high yield from cemented tungsten carbide or tungsten alloys scrap. According to the invention the process consists of a series of steps characterized by certain critical parameters.
The steps involved in the process are:

REFERENCES:
patent: 1293404 (1919-02-01), Giles et al.
patent: 1614149 (1927-01-01), Pacz
patent: 3887680 (1975-06-01), MacInnis et al.

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