Classifying – separating – and assorting solids – Precedent preparation of items or materials to facilitate... – Selective differentiation
Patent
1977-12-01
1980-09-30
Halper, Robert
Classifying, separating, and assorting solids
Precedent preparation of items or materials to facilitate...
Selective differentiation
201 8, 209 39, 209214, B03B 104, B03C 100
Patent
active
042254256
ABSTRACT:
A method for separating a metallic mineral from an ore containing same. An aqueous dispersed slurry of the ore is formed, and the slurry is mixed with a system of transiently suspended ferrimagnetic particles of predominantly colloidal size. The particles are further characterized by an isoelectric point in relation to the slurried mineral sought to be separated, such that the particles spontaneously co-flocculate with the mineral to seed same. The resultant seeded slurry is passed through a porous ferromagnetic matrix in the presence of a magnetic field, which separates the seeded mineral at the matrix.
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Phys. Rev. Elmore, 309, 310, 1938.
Journal of Applied Physics, Suppl., vol. 32, No. 3, Mar. '61, 2355, 2365.
Nott Alan J.
Price William M.
Anglo-American Clays Corporation
Halper Robert
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