Process for producing a metalliferous concentrate from a particu

Details Process for producing a metalliferous concentrate from a particu Process for producing a metalliferous concentrate from a particu

1983-07-20

1985-04-23

Hart, Charles

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Sorting special items or sorting by methods and apparatus...

209 12, 209 38, 209 39, 209 40, 2091272, B03B 100

Patent

active

045128790

ABSTRACT:
A concentrate containing precious metals is produced from a particulate feed material containing particles of various sizes by a size fractionation step, a gravity separation step performed on each size fraction separately, a magnetic separation step and a second gravity separation step. The process is especially intended for separating gold and other metals from so-called "black sand" placer deposits.

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