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Used stone crushing unit for sale

It is accordingly a principal object of the present invention to provide a method of mineral dressing and mineral dressing centrifuge by means of which mineral metal values may be effectively beneficiated.Another object of this invention is the provision of a method of mineral dressing and a mineral dressing centrifuge by means of which near-colloidal size gold particles can be effectively recovered from particulate mineral mixtures containing same in an economic and facile manner.These and other objects of the invention and the manner in which they can be attained will become apparent from the description of the accompanying drawings,used ball mills in which:FIG. 1 is a vertical sectional view through a preferred emb

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