Recycling of CdTe photovoltaic waste

Goozner, Robert E; Long, Mark O

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Title: Recycling of CdTe photovoltaic waste

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Abstract

A method for extracting and reclaiming metals from scrap CdTe photovoltaic cells and manufacturing waste by leaching the metals in dilute nitric acid, leaching the waste with a leaching solution comprising nitric acid and water, skimming any plastic material from the top of the leaching solution, separating the glass substrate from the liquid leachate, adding a calcium containing base to the leachate to precipitate Cd and Te, separating the precipitated Cd and Te from the leachate, and recovering the calcium-containing base.

Inventors:

Goozner, Robert E ^[1]; Long, Mark O ^[1]; Drinkard, Jr., William F. ^[2]

Charlotte, NC
(Charlotte, NC)

Issue Date:: 1999-04-27

Research Org.:: Drinkard Metalox, Inc., Charlotte, NC (US)

OSTI Identifier:: 872262

Patent Number(s):: 5897685

Application Number:: 08/855873

Assignee:: Drinkard Metalox, Inc. (Charlotte, NC)

Patent Classifications (CPCs):: C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

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C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
C22B17/04 - {by wet processes}
C22B3/065 - {Nitric acids or salts thereof}
C22B7/007 - {by acid leaching}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
H01L31/0322 - {comprising only AIBIIICVI chalcopyrite compounds, e.g. Cu In Se2, Cu Ga Se2, Cu In Ga Se2}

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
Y02E10/541 - CuInSe2 material PV cells

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
Y02P10/134 - by CO2 avoidance
Y02P10/20 - Process efficiency
Y02P10/32 - the energy source being renewable
Y02P70/50 - Manufacturing or production processes characterised by the final manufactured product

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
Y02W30/82 - Recycling of waste of electrical or electronic equipment [WEEE]

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DOE Contract Number:: FG02-95ER81951

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: recycling; cdte; photovoltaic; waste; method; extracting; reclaiming; metals; scrap; cells; manufacturing; leaching; dilute; nitric; acid; solution; comprising; water; skimming; plastic; material; top; separating; glass; substrate; liquid; leachate; adding; calcium; containing; base; precipitate; cd; precipitated; recovering; calcium-containing; plastic material; cdte photovoltaic; photovoltaic cells; nitric acid; solution comprising; glass substrate; photovoltaic cell; leaching solution; scrap cdte; reclaiming metals; comprising nitric; containing base; photovoltaic waste; dilute nitric; manufacturing waste; /75/

Citation Formats


                    Goozner, Robert E, Long, Mark O, and Drinkard, Jr., William F. Recycling of CdTe photovoltaic waste.  United States: N. p., 1999. 
        Web.

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                    Goozner, Robert E, Long, Mark O, & Drinkard, Jr., William F. Recycling of CdTe photovoltaic waste.  United States.

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                    Goozner, Robert E, Long, Mark O, and Drinkard, Jr., William F. Tue .  
        "Recycling of CdTe photovoltaic waste".  United States.  https://www.osti.gov/servlets/purl/872262.

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@article{osti_872262,

  title        = {Recycling of CdTe photovoltaic waste},

  author       = {Goozner, Robert E and Long, Mark O and Drinkard, Jr., William F.},

  abstractNote = {A method for extracting and reclaiming metals from scrap CdTe photovoltaic cells and manufacturing waste by leaching the metals in dilute nitric acid, leaching the waste with a leaching solution comprising nitric acid and water, skimming any plastic material from the top of the leaching solution, separating the glass substrate from the liquid leachate, adding a calcium containing base to the leachate to precipitate Cd and Te, separating the precipitated Cd and Te from the leachate, and recovering the calcium-containing base.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1999},

  month        = {4}

}

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Recycling of CdTe photovoltaic waste

Patent Goozner, Robert E [Charlotte, NC]; Long, Mark O [Charlotte, NC]; Drinkard, Jr., William F. (Charlotte, NC)

A method for extracting and reclaiming metals from scrap CdTe photovoltaic cells and manufacturing waste by leaching the waste with a leaching solution comprising nitric acid and water, skimming any plastic material from the top of the leaching solution, separating the glass substrate from the liquid leachate and electrolyzing the leachate to separate Cd from Te, wherein the Te is deposits onto a cathode while the Cd remains in solution.
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