B - Operations – Transporting – 03 – D
Patent
B - Operations, Transporting
03
D
361/2
B03D 1/02 (2006.01)
Patent
CA 1164110
ABSTRACT Condensation products of a fatty acid or fatty acid ester and a hydroxyalkylated polyalkylenepolyamine are useful as conditioners to improve the recovery of clean coal in a froth flotation process. The presence of these condensation products in the flotation medium is particu- larly effective to enhance the recovery of oxidized bitu- minous coal. 28,127-F
391082
Smart & Biggar
The Dow Chemical Company
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