Crosslinked starches as depressants in mineral ore flotation

Details Crosslinked starches as depressants in mineral ore flotation Crosslinked starches as depressants in mineral ore flotation

1980-12-05

1982-07-13

Halper, Robert

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209 5, 210731, B03D 106

Patent

active

043393314

ABSTRACT:
Conventional starches are chemically crosslinked for use as selective depressants in the flotation of non-sulfide mineral ores. The process employing these crosslinked starches requires lower reagent dosages, exhibits improved selectivity and recovery and exerts a lower load on existing waste treatment facilities. The crosslinking agents employed are bifunctional and are used in sufficient quantities to result in 500 to 10,000 anhydroglucose units per crosslink.

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Flory, Principles of Polymer Therm., Cornell Univ. Press, 1953, pp. 32, 47, 358.

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