Procedure for classifying a crystal mixture or concentrating roc

Details Procedure for classifying a crystal mixture or concentrating roc Procedure for classifying a crystal mixture or concentrating roc

1985-03-18

1986-11-25

Goldberg, Howard N.

Solid material comminution or disintegration

Processes

241 14, 241 19, 241 23, 241 24, B02C 1900

Patent

active

046244166

ABSTRACT:
A process for classifying a crystal mixture or for concentrating rocks or mixed crystals in particle form by capturing the particles in a gas flow for the purpose of separating particles of different size and weight by means of natural or artificial gravity is disclosed. The particles are heated to a temperature so high that a difference sufficient for separation is obtained in volume or weight between different particles. For spodumene, quartz and feldspar this temperature is about 1000.degree. C.

REFERENCES:
patent: 3202502 (1965-08-01), Lean et al.
patent: 3397844 (1968-08-01), Whaley et al.
patent: 3402895 (1968-09-01), Willmann
patent: 3797757 (1974-03-01), Marshall
patent: 3865541 (1975-02-01), Wilson et al.
patent: 4253940 (1981-03-01), Price

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