Recovery of rare earth elements by liquid-liquid extraction from fresh water to hypersaline solutions

Title: Recovery of rare earth elements by liquid-liquid extraction from fresh water to hypersaline solutions

Abstract

The disclosure describes a method of extraction for optimal recovery of rare earth elements (REE). This includes the optimization of a liquid-liquid extraction technique for economic extraction of REE from chemically complex brines. Through the use of a model, operating conditions are altered to increase separation efficiency. The technique achieves >98% recovery of all rare earth elements in one fraction, while using small volumes of sample and reagents. The method of the present invention recovers REE from previously unexploited waste streams, without need for development of new process equipment and while keeping a small footprint because of the volumes involved.

Inventors:: Noack, Clinton W.; Karamalidis, Athanasios K.; Dzombak, David A.

Issue Date:: 2019-09-24

Research Org.:: Carnegie Mellon Univ., Pittsburgh, PA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1576274

Patent Number(s):: 10,422,023

Application Number:: 15/138,117

Assignee:: Carnegie Mellon University (Pittsburgh, PA)

DOE Contract Number:: FE0004000

Resource Type:: Patent

Resource Relation:: Patent File Date: 2016 Apr 25

Country of Publication:: United States

Language:: English

Citation Formats


                    Noack, Clinton W., Karamalidis, Athanasios K., and Dzombak, David A. Recovery of rare earth elements by liquid-liquid extraction from fresh water to hypersaline solutions.  United States: N. p., 2019. 
        Web.

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                    Noack, Clinton W., Karamalidis, Athanasios K., & Dzombak, David A. Recovery of rare earth elements by liquid-liquid extraction from fresh water to hypersaline solutions.  United States.

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                    Noack, Clinton W., Karamalidis, Athanasios K., and Dzombak, David A. Tue .  
        "Recovery of rare earth elements by liquid-liquid extraction from fresh water to hypersaline solutions".  United States.  https://www.osti.gov/servlets/purl/1576274.

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@article{osti_1576274,

  title        = {Recovery of rare earth elements by liquid-liquid extraction from fresh water to hypersaline solutions},

  author       = {Noack, Clinton W. and Karamalidis, Athanasios K. and Dzombak, David A.},

  abstractNote = {The disclosure describes a method of extraction for optimal recovery of rare earth elements (REE). This includes the optimization of a liquid-liquid extraction technique for economic extraction of REE from chemically complex brines. Through the use of a model, operating conditions are altered to increase separation efficiency. The technique achieves >98% recovery of all rare earth elements in one fraction, while using small volumes of sample and reagents. The method of the present invention recovers REE from previously unexploited waste streams, without need for development of new process equipment and while keeping a small footprint because of the volumes involved.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2019},

  month        = {9}

}

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Works referenced in this record:

Solvent extraction of metal containing species
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Smart, Neil G.
US Patent Document 5,750,081
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Method of separating a trivalent actinide from a trivalent lanthanide and/or yttrium in aqueous solution
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Modolo, Giuseppe; Odoj, Reinhard
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Method for separating water soluble organics from a process stream by aqueous biphasic extraction
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Takahashi, Toshio; Nishizawa, Hiroaki; Ishii, Yukari
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Similar Records

Title: Recovery of rare earth elements by liquid-liquid extraction from fresh water to hypersaline solutions

Abstract

Citation Formats

Solvent extraction of metal containing species patent, May 1998

Method of separating a trivalent actinide from a trivalent lanthanide and/or yttrium in aqueous solution patent, November 2001

Method for separating water soluble organics from a process stream by aqueous biphasic extraction patent, September 1999

Method for cleaning solution used in nuclear fuel reprocessing patent, July 1983

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Method for extracting metal ions patent, October 1989

Solvent extraction of metal containing species
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Method of separating a trivalent actinide from a trivalent lanthanide and/or yttrium in aqueous solution
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Method for separating water soluble organics from a process stream by aqueous biphasic extraction
patent, September 1999

Method for cleaning solution used in nuclear fuel reprocessing
patent, July 1983

Extractant for rare earth metal and method for extracting the same
patent, November 1993

Method for extracting metal ions
patent, October 1989