Classifying – separating – and assorting solids – Fluid suspension – Liquid
Patent
1982-02-11
1986-04-22
Nozick, Bernard
Classifying, separating, and assorting solids
Fluid suspension
Liquid
209167, 299 7, 210705, B03D 114
Patent
active
045840962
ABSTRACT:
The method of beneficiating phosphate tailings and debris waste material is disclosed for producing enriched phosphate ore and a sand product which is usable for glass, cement and the like or for land reclamation. The method includes treating the phosphate tailings and waste material with a cationic reagent and subjecting the tailings and waste material to a flotation process to overflow the sand product therefrom. The underflow phosphate ore is subjected to a conventional double flotation process to produce a high grade phosphate product. The sand product may either be directly pumped into an existing phosphate quarry for land reclamation or may be deregentized and treated with anionic reagents to remove remaining impurities providing a sand product suitable for glass, cement and the like.
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patent: 2868618 (1959-01-01), Oberg et al.
patent: 2914173 (1959-11-01), Le Baron
patent: 3259326 (1966-07-01), Duke et al.
patent: 3314537 (1967-04-01), Greene et al.
patent: 3388793 (1968-06-01), Dibble
patent: 4298229 (1981-11-01), D'Alli
Allen J. Warren
Nozick Bernard
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