Process for extracting precious metals from volcanic ore

Details Process for extracting precious metals from volcanic ore Process for extracting precious metals from volcanic ore

1995-06-23

1996-07-16

Wyszomierski, George

Specialized metallurgical processes, compositions for use therei

Processes

Producing or purifying free metal powder or producing or...

75369, 75421, 75423, 75428, B22F 904

Patent

active

055362940

ABSTRACT:
A process for extracting precious metal from volcanic ore includes the steps of crushing the ore, heating the ore in a hydrogen atmosphere to soften oxide mineral encapsulating the precious metal, cooling the ore, grinding the ore, and processing the ore to extract precious metal.

REFERENCES:
patent: 3150960 (1964-09-01), Hunter
patent: 5185030 (1993-02-01), Miller et al.
patent: 5439503 (1995-08-01), Burr
Rosenbaum, D. B., "Preparation of High Purity Rhenium", Journal of the Electrochemical Society, vol. 103, No. 9, Sep. 1956, pp. 518-521.

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