Alkyl-substituted phenyl ether amine collectors in flotation
AssigneeThe Dow Chemical Company
InventorsRobert E. Hefner, Jr., Donald A. Tomalia
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Abstract
In the beneficiation of phosphate ore by flotation of siliceous material, the use of an alkyl-substituted phenyl ether amine or a hydroxyalkylated derivative thereof as a collector affords improved separation of phosphate from the siliceous matter.
Claims9
In a process for beneficiating a siliceous mineral ore by froth flotation with a collector system for the flotation of siliceous matter, the improvement wherein the collector system comprises an effective amount of a compound represented by the formula I ##STR7## or an acid-neutralized derivative of this compound, wherein R' is an aliphatic radical having 2 to 22 carbon atoms;
- R" is hydrogen or an aliphatic radical having 2 to 22 carbon atoms;
- each R is independently hydrogen, a C.sub.1 -C.sub.4 hydroxyalkyl or C.sub.1 -C.sub.4 alkyl;
- Q is ##STR8## wherein M at each occurrence is independently hydrogen, methyl or ethyl, with the proviso that Q at each occurrence contains no more than 4 carbon atoms;
- T is hydrogen or methyl;
- w is 2 or 3, and v, x, y and z are each independently 0 or 1.
Dependencies are inferred from the claim text.