Classifying – separating – and assorting solids – Precedent preparation of items or materials to facilitate... – Selective differentiation
Patent
1984-03-26
1985-10-08
Nozick, Bernard
Classifying, separating, and assorting solids
Precedent preparation of items or materials to facilitate...
Selective differentiation
209 8, 209214, B03B 100
Patent
active
045458960
ABSTRACT:
The present invention provides a process for separating a concentrate containing two or more minerals having substantially similar paramagnetic properties by treating the minerals particles with a dispersing agent so as to maintain the particles adequately dispersed during a subsequent magnetic separation step. Thus, in one embodiment of the present invention a method is provided for separating sulfide concentrate into at least two fractions. The process comprises obtaining a slurry of the sulfide minerals particles, adding a dispersing agent to the slurry so as to maintain the particles in the slurry dispersed during a subsequent magnetic separation step and thereafter passing the so dispersed particle slurry to a high gradient magnetic field whereby the more magnetic particles are retained within the field and the less magnetic particles pass therethrough thereby affecting separation.
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Dvorak Joseph J.
Exxon Research and Engineering Co.
Nozick Bernard
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