Tri-carboxylated and tetra-carboxylated fatty acid aspartates as

Details Tri-carboxylated and tetra-carboxylated fatty acid aspartates as Tri-carboxylated and tetra-carboxylated fatty acid aspartates as

1975-06-06

1977-08-23

Halper, Robert

Classifying, separating, and assorting solids

Fluid suspension

Liquid

B03D 102

Patent

active

040439020

ABSTRACT:
A process for beneficiating non-sulfide minerals such as celestite, barite, scheelite, fluorite, calcite, magnesite, gypsum, anhydrite, cassiterite, apatite and the like comprising froth floating a pulp conditioned with gangue depressant, where necessary, and using salts of tri- and tetra- carboxyl containing fatty alkyl substituted aspartic acids, aspartic mono-esters, and aspartic di-esters.

REFERENCES:
patent: 1952907 (1934-03-01), Christinann
patent: 2414199 (1947-01-01), Butzeit
patent: 2740522 (1956-04-01), Aimone
patent: 3469693 (1969-09-01), Arbiter
patent: 3572504 (1971-03-01), DeCuyper
patent: 3779380 (1973-12-01), Bishop
patent: 3830366 (1974-08-01), Day

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