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Title: Selective flotation of phosphate minerals with hydroxamate collectors

Abstract

A method is disclosed for separating phosphate minerals from a mineral mixture, particularly from high-dolomite containing phosphate ores. The method involves conditioning the mineral mixture by contacting in an aqueous in environment with a collector in an amount sufficient for promoting flotation of phosphate minerals. The collector is a hydroxamate compound of the formula; ##STR1## wherein R is generally hydrophobic and chosen such that the collector has solubility or dispersion properties it can be distributed in the mineral mixture, typically an alkyl, aryl, or alkylaryl group having 6 to 18 carbon atoms. M is a cation, typically hydrogen, an alkali metal or an alkaline earth metal. Preferably, the collector also comprises an alcohol of the formula, R'--OH wherein R' is generally hydrophobic and chosen such that the collector has solubility or dispersion properties so that it can be distributed in the mineral mixture, typically an alkyl, aryl, or alkylaryl group having 6 to 18 carbon atoms.

Inventors:
 [1];  [1];  [1]
  1. Salt Lake City, UT
Publication Date:
Research Org.:
Univ. of Utah, Salt Lake City, UT (United States)
OSTI Identifier:
874213
Patent Number(s):
US 6341697
Assignee:
University of Utah Research Foundation (Salt Lake City, UT)
DOE Contract Number:  
FG03-93ER14315
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
selective; flotation; phosphate; minerals; hydroxamate; collectors; method; disclosed; separating; mineral; mixture; high-dolomite; containing; ores; involves; conditioning; contacting; aqueous; environment; collector; amount; sufficient; promoting; compound; formula; str1; hydrophobic; chosen; solubility; dispersion; properties; distributed; typically; alkyl; aryl; alkylaryl; 18; carbon; atoms; cation; hydrogen; alkali; metal; alkaline; earth; alcohol; r-oh; alkali metal; alkaline earth; earth metal; /209/252/

Citation Formats

Miller, Jan D, Wang, Xuming, and Li, Minhua. Selective flotation of phosphate minerals with hydroxamate collectors. United States: N. p., 2002. Web.
Miller, Jan D, Wang, Xuming, & Li, Minhua. Selective flotation of phosphate minerals with hydroxamate collectors. United States.
Miller, Jan D, Wang, Xuming, and Li, Minhua. Tue . "Selective flotation of phosphate minerals with hydroxamate collectors". United States. https://www.osti.gov/servlets/purl/874213.
@article{osti_874213,
title = {Selective flotation of phosphate minerals with hydroxamate collectors},
author = {Miller, Jan D and Wang, Xuming and Li, Minhua},
abstractNote = {A method is disclosed for separating phosphate minerals from a mineral mixture, particularly from high-dolomite containing phosphate ores. The method involves conditioning the mineral mixture by contacting in an aqueous in environment with a collector in an amount sufficient for promoting flotation of phosphate minerals. The collector is a hydroxamate compound of the formula; ##STR1## wherein R is generally hydrophobic and chosen such that the collector has solubility or dispersion properties it can be distributed in the mineral mixture, typically an alkyl, aryl, or alkylaryl group having 6 to 18 carbon atoms. M is a cation, typically hydrogen, an alkali metal or an alkaline earth metal. Preferably, the collector also comprises an alcohol of the formula, R'--OH wherein R' is generally hydrophobic and chosen such that the collector has solubility or dispersion properties so that it can be distributed in the mineral mixture, typically an alkyl, aryl, or alkylaryl group having 6 to 18 carbon atoms.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

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