Method for removing metals from a cleaning solution

Title: Method for removing metals from a cleaning solution

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Abstract

A method for removing accumulated metals from a cleaning solution is provided. After removal of the metals, the cleaning solution can be discharged or recycled. The process manipulates the pH levels of the solution as a means of precipitating solids. Preferably a dual phase separation at two different pH levels is utilized.

Inventors:

Deacon, Lewis E ^[1]

Waverly, OH

Issue Date:: 2002-01-01

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

OSTI Identifier:: 874362

Patent Number(s):: 6375850

Assignee:: United States Enrichment Corp. (Bethesda, MD)

Patent Classifications (CPCs):: C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23G - CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS

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C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23G - CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
C23G1/36 - Regeneration of waste pickling liquors

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
C22B3/42 - by ion-exchange extraction

C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F1/5245 - {using basic salts, e.g. of aluminium and iron}

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
C22B3/165 - {with organic acids}

C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F9/00 - Multistage treatment of water, waste water, or sewage

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S210/912 - Heavy metal

C - CHEMISTRY C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
C02F2101/20 - Heavy metals or heavy metal compounds

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
C22B3/20 - Treatment or purification of solutions, e.g. obtained by leaching

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P10/20 - Process efficiency

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DOE Contract Number:: W-7405-ENG-48

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; removing; metals; cleaning; solution; accumulated; provided; removal; discharged; recycled; process; manipulates; ph; levels; means; precipitating; solids; dual; phase; separation; utilized; phase separation; removing metal; cleaning solution; /210/

Citation Formats


                    Deacon, Lewis E. Method for removing metals from a cleaning solution.  United States: N. p., 2002. 
        Web.

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                    Deacon, Lewis E. Method for removing metals from a cleaning solution.  United States.

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                    Deacon, Lewis E. Tue .  
        "Method for removing metals from a cleaning solution".  United States.  https://www.osti.gov/servlets/purl/874362.

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@article{osti_874362,

  title        = {Method for removing metals from a cleaning solution},

  author       = {Deacon, Lewis E},

  abstractNote = {A method for removing accumulated metals from a cleaning solution is provided. After removal of the metals, the cleaning solution can be discharged or recycled. The process manipulates the pH levels of the solution as a means of precipitating solids. Preferably a dual phase separation at two different pH levels is utilized.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2002},

  month        = {1}

}

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