Classifying – separating – and assorting solids – Precedent preparation of items or materials to facilitate... – Selective differentiation
Patent
1985-04-03
1987-09-01
Hruskoci, Peter
Classifying, separating, and assorting solids
Precedent preparation of items or materials to facilitate...
Selective differentiation
209 49, 209167, 210705, 210907, B03D 306
Patent
active
046907521
ABSTRACT:
A process for separating and recovering non-metallic minerals, particularly phosphate, from an ore containing non-uniform sized particles, including colloidal particles. The ore is slurried in an alkaline, aqueous solution with a dispersing agent. A flotation collector is added, and the mixture is contacted with a hydrophobic, high molecular weight, nonionic polymer to flocculate the fine particles and make them amenable to subsequent flotation. A second embodiment provides a process for the recovery of an upgraded non-metallic ore from ore slimes, such as phosphate slimes, utilizing a high molecular weight, polyacrylamide, anionic flocculating agent.
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"Dispersion-Flocculation Characteristics of Florida Phosphate Slimes", A. F. Colombo, Bureau of Mines, Minnesota, U.S.A.
Friend et al., "The Separation of Minerals from Mixtures by Selective Flocculation", Filtration & Separation, Jan.-Feb., 1972, pp. 25-28.
Hruskoci Peter
Resource Technology Associates
LandOfFree
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