Flotation process for the enrichment of bauxites

Details Flotation process for the enrichment of bauxites Flotation process for the enrichment of bauxites

1974-11-26

1976-11-09

Halper, Robert

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Selective differentiation

209166, B03B 104

Patent

active

039909654

ABSTRACT:
An improved process for the enrichment of bauxites with unfavorable textures and low qualities via flotation and carried out after selective agglomeration. According to the process of the invention a water-soluble prepolymer of low chain length is added to the slurry as flocculating agent, thereafter the polymerization is started again by heating the slurry and/or adjusting its pH and/or adding a catalyst thus converting the polymer chain fragments adhered onto the gangue with high surface activity into a cross-linked resin, and finally the slurry is subjected to flotation in the presence of a conventional flotation aid.

REFERENCES:
patent: 2238662 (1941-04-01), Shepard
patent: 2341046 (1944-02-01), Kirby
patent: 2387856 (1945-10-01), Pickens
patent: 3017028 (1962-01-01), Schoeld
patent: 3194758C (1965-07-01), Lissant
patent: 3425548 (1969-02-01), Fenske
patent: 3430765 (1969-03-01), Allen
patent: 3509021 (1970-04-01), Woodward
patent: 3539003 (1970-11-01), Cundy
patent: 3572504 (1971-03-01), DeCuypel
patent: 3844412 (1974-10-01), Dominique

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