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:
-
- Salt Lake City, UT
- Issue Date:
- Research Org.:
- Univ. of Utah, Salt Lake City, UT (United States)
- OSTI Identifier:
- 874213
- Patent Number(s):
- 6341697
- Assignee:
- University of Utah Research Foundation (Salt Lake City, UT)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS B03D - FLOTATION
- 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 = {Tue Jan 01 00:00:00 EST 2002},
month = {Tue Jan 01 00:00:00 EST 2002}
}
Works referenced in this record:
Utilisation of hydroxamates in minerals froth flotation
journal, January 1996
- Assis, S. M.; Montenegro, L. C. M.; Peres, A. E. C.
- Minerals Engineering, Vol. 9, Issue 1