Method for extracting metals from aqueous waste streams for long term storage

Chaiko, David J

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Title: Method for extracting metals from aqueous waste streams for long term storage

Abstract

A liquid--liquid extraction method for removing metals and hydrous metal colloids from waste streams is provided wherein said waste streams are contacted with a solvent system containing a water-in-oil microemulsion wherein the inverted micelles contain the extracted metal. A silicon alkoxide, either alone or in combination with other metal alkoxide compounds is added to the water-in-oil microemulsion, thereby allowing encapsulation of the extracted metal within a silicon oxide network. Lastly, the now-encapsulated metal is precipitated from the water-in-oil microemulsion phase to yield aggregates of metal-silicate particles having average individual particle sizes of approximately 40 nanometers.

Inventors:

Chaiko, David J ^[1]

Woodridge, IL

Issue Date:: Sun Jan 01 00:00:00 EST 1995

Research Org.:: Argonne National Laboratory (ANL), Argonne, IL (United States)

OSTI Identifier:: 869771

Patent Number(s):: 5395532

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01F - COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

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C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01F - COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
C01F17/17 - involving a liquid-liquid extraction

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C01G56/001 - {Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange}

C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F1/26 - by extraction

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07F - ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
C07F5/003 - {without C-Metal linkages}

G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
G21C19/46 - Aqueous processes {, e.g. by using organic extraction means, including the regeneration of these means}

G - PHYSICS G21 - NUCLEAR PHYSICS G21F - PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT
G21F9/125 - {by solvent extraction}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y02E30/30 - Nuclear fission reactors

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02W - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
Y02W30/50 - Reuse, recycling or recovery technologies

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DOE Contract Number:: W-31109-ENG-38

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; extracting; metals; aqueous; waste; streams; term; storage; liquid-liquid; extraction; removing; hydrous; metal; colloids; provided; contacted; solvent; containing; water-in-oil; microemulsion; inverted; micelles; contain; extracted; silicon; alkoxide; combination; compounds; added; allowing; encapsulation; oxide; network; lastly; now-encapsulated; precipitated; phase; yield; aggregates; metal-silicate; particles; average; individual; particle; sizes; approximately; 40; nanometers; removing metals; removing metal; term storage; extracting metal; individual particle; metal alkoxide; waste stream; particle size; silicon oxide; waste streams; hydrous metal; particle sizes; aqueous waste; moving metal; alkoxide compound; oxide compounds; extraction method; liquid extract; metal colloids; extracting metals; emulsion phase; liquid extraction; alkoxide compounds; /210/

Citation Formats


                    Chaiko, David J. Method for extracting metals from aqueous waste streams for long term storage.  United States: N. p., 1995. 
        Web.

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                    Chaiko, David J. Method for extracting metals from aqueous waste streams for long term storage.  United States.

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                    Chaiko, David J. Sun .  
        "Method for extracting metals from aqueous waste streams for long term storage".  United States.  https://www.osti.gov/servlets/purl/869771.

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@article{osti_869771,

  title        = {Method for extracting metals from aqueous waste streams for long term storage},

  author       = {Chaiko, David J},

  abstractNote = {A liquid--liquid extraction method for removing metals and hydrous metal colloids from waste streams is provided wherein said waste streams are contacted with a solvent system containing a water-in-oil microemulsion wherein the inverted micelles contain the extracted metal. A silicon alkoxide, either alone or in combination with other metal alkoxide compounds is added to the water-in-oil microemulsion, thereby allowing encapsulation of the extracted metal within a silicon oxide network. Lastly, the now-encapsulated metal is precipitated from the water-in-oil microemulsion phase to yield aggregates of metal-silicate particles having average individual particle sizes of approximately 40 nanometers.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Sun Jan 01 00:00:00 EST 1995},

  month        = {Sun Jan 01 00:00:00 EST 1995}

}

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Works referenced in this record:

Partitioning of Polymeric Plutonium(IV) in Winsor II Microemulsion Systems
journal, September 1992

Chaiko, D. J.
Separation Science and Technology, Vol. 27, Issue 11
https://doi.org/10.1080/01496399208019432

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Title: Method for extracting metals from aqueous waste streams for long term storage

Abstract

Citation Formats

Partitioning of Polymeric Plutonium(IV) in Winsor II Microemulsion Systems journal, September 1992

Partitioning of Polymeric Plutonium(IV) in Winsor II Microemulsion Systems
journal, September 1992