Process for producing a metalliferous concentrate from a particu

Classifying – separating – and assorting solids – Precedent preparation of items or materials to facilitate... – Sorting special items or sorting by methods and apparatus...

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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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