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Title: Purification of trona ores by conditioning with an oil-in-water emulsion

Abstract

The present invention is a trona concentrate and a process for floating gangue material from trona ore that comprises forming an emulsion, conditioning the trona ore at a high solids content in a saturated trona suspension, and then floating and removing the gangue material. The process for separating trona from gangue materials in trona ore can include emulsifying an oil in an aqueous solution to form an oil-in-water emulsion. A saturated trona suspension having a high solids content can also be formed having trona of a desired particle size. The undissolved trona in the saturated suspension can be conditioned by mixing the saturated suspension and the oil-in-water emulsion to form a conditioning solid suspension of trona and gangue material. A gas can be injected through the conditioning solid suspension to float the gangue material. Thus, the floated gangue material can be readily separated from the trona to form a purified trona concentrate without requirements of additional heat or other expensive processing steps.

Inventors:
 [1];  [1];  [1]
  1. Salt Lake City, UT
Issue Date:
Research Org.:
Univ. of Utah, Salt Lake City, UT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
986556
Patent Number(s):
7517509
Application Number:
11/094,326; TRN: US201018%%36
Assignee:
University of Utah Research Foundation (Salt Lake City, UT)
Patent Classifications (CPCs):
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01D - COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
DOE Contract Number:  
FG03-93ER14315
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; SODIUM CARBONATES; ORE PROCESSING; GANGUE; PARTICLE SIZE; PURIFICATION; TRONA; FLOTATION; EMULSIONS

Citation Formats

Miller, J D, Wang, Xuming, and Li, Minhua. Purification of trona ores by conditioning with an oil-in-water emulsion. United States: N. p., 2009. Web.
Miller, J D, Wang, Xuming, & Li, Minhua. Purification of trona ores by conditioning with an oil-in-water emulsion. United States.
Miller, J D, Wang, Xuming, and Li, Minhua. Tue . "Purification of trona ores by conditioning with an oil-in-water emulsion". United States. https://www.osti.gov/servlets/purl/986556.
@article{osti_986556,
title = {Purification of trona ores by conditioning with an oil-in-water emulsion},
author = {Miller, J D and Wang, Xuming and Li, Minhua},
abstractNote = {The present invention is a trona concentrate and a process for floating gangue material from trona ore that comprises forming an emulsion, conditioning the trona ore at a high solids content in a saturated trona suspension, and then floating and removing the gangue material. The process for separating trona from gangue materials in trona ore can include emulsifying an oil in an aqueous solution to form an oil-in-water emulsion. A saturated trona suspension having a high solids content can also be formed having trona of a desired particle size. The undissolved trona in the saturated suspension can be conditioned by mixing the saturated suspension and the oil-in-water emulsion to form a conditioning solid suspension of trona and gangue material. A gas can be injected through the conditioning solid suspension to float the gangue material. Thus, the floated gangue material can be readily separated from the trona to form a purified trona concentrate without requirements of additional heat or other expensive processing steps.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {4}
}

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