leaching of cadmium tellurium and copper from

leaching of cadmium tellurium and copper from

  • Leaching of Cadmium, Tellurium and Copper from Cadmium ...

    A relatively dilute solution of sulfuric acid and hydrogen peroxide was found to be most effective for leaching cadmium and tellurium from broken pieces of CdTe PV modules.

  • LEACHING OF CADMIUM, TELLURIUM AND COPPER FROM

    osti.gov technical report: leaching of cadmium, tellurium and copper from cadmium telluride photovoltaic modules.

  • Cited by: 2
  • Extraction and separation of Cd and Te from cadmium ...

    The extraction and separation of cadmium, tellurium, and copper from CdTe PV module scrap was investigated. Several leaching technologies were assessed and the extraction of CdTe from samples of PV modules was optimized for maximum efficiency and minimum cost.

  • Cited by: 68
  • Assessing metal leaching from PV modules dumped in ...

    2019-12-04  In CdtE modules, copper, tellurium and cadmium had the largest concentration of metals. “Cd [cadmium] and Cu [copper] have been shown to be highly toxic for aquatic organisms,” states the ...

  • Leaching of cadmium and tellurium from cadmium telluride ...

    2017-08-15  Leaching of cadmium and tellurium from cadmium telluride (CdTe) thin-film solar panels under simulated landfill conditions. Ramos-Ruiz A(1), Wilkening JV(1), Field JA(1), Sierra-Alvarez R(2). Author information: (1)Department of Chemical and Environmental Engineering, The University of Arizona, P. O. Box 210011, Tucson, AZ, 85721-0011, USA. (2)Department of Chemical and

  • Cited by: 24
  • (PDF) Hydrometallurgical Recovery of Tellurium

    Testwork has been done to optimize the leaching of pure tellurium and optimized conditions applied to cadmium telluride and flotation concentrate from a gold telluride (calaverite) bearing ore ...

  • An environmental-friendly process for recovery of ...

    The alkaline leaching of copper tellurides is a typical solid-liquid reaction, and the Te selective dissolution process can be described as follows: Te existing on the surface of the copper telluride particles reacts with NaOH in the presence of H 2 O 2, leaving copper oxide residue behind to form a residue layer, in the meantime, the generated Na 2 TeO 3 transfers toward the bulk solution.

  • Cited by: 1
  • Leaching of cadmium and tellurium from cadmium telluride ...

    2017-08-15  Leaching of cadmium and tellurium from cadmium telluride (CdTe) thin-film solar panels under simulated landfill conditions. Ramos-Ruiz A(1), Wilkening JV(1), Field JA(1), Sierra-Alvarez R(2). Author information: (1)Department of Chemical and Environmental Engineering, The University of Arizona, P. O. Box 210011, Tucson, AZ, 85721-0011, USA. (2)Department of Chemical and

  • Leaching of cadmium and tellurium from cadmium telluride ...

    A crushed non-encapsulated CdTe thin-film solar cell was subjected to two standardized batch leaching tests (i.e., Toxicity Characteristic Leaching Procedure (TCLP) and California Waste Extraction Test (WET)) and to a continuous-flow column test to assess cadmium (Cd) and tellurium (Te) dissolution under conditions simulating the acidic- and the methanogenic phases of municipal solid waste ...

  • Toxicity of cadmium telluride, copper indium diselenide ...

    2000-01-18  Adriana Ramos-Ruiz, Jean V. Wilkening, James A. Field, Reyes Sierra-Alvarez, Leaching of cadmium and tellurium from cadmium telluride (CdTe) thin-film solar panels under simulated landfill conditions, Journal of Hazardous Materials, 10.1016/j.jhazmat.2017.04.052, 336, (57-64), (2017).

  • A green strategy toward extraction of cadmium(II) during ...

    This paper presents an eco-friendly method for recovery of cadmium by solvent extraction and stabilization of arsenic through one-pool treatment on ar

  • An environmental-friendly process for recovery of ...

    In the alkaline leaching process of copper telluride, Te is anticipated to be oxidized to soluble Te(IV) species of Na 2 TeO 3 in the presence of H 2 O 2, and Cu remains in the solid phase mainly in the forms of CuO, Cu 2 O, and possibly of Cu(OH) 2, achieving one-step separation of tellurium and copper. The main reaction expected occurring ...

  • optimization tellurium recovery

    Recovering Cadmium Tellurium from Scrap. Optimization of this cementation step probably could improve the selectivity. With proper control of the pH and the reduction potential, coprecipitation of the cadmium likely could be avoided. The resulting solution contained high levels of cadmium and iron chlorides free of tellurium. Get Price. Optimization of Tellurium and Antimony Extraction from ...

  • RECYCLING OF CdTe PHOTOVOLTAIC MODULES: RECOVERY OF ...

    effective in totally leaching cadmium and tellurium out of the Limestone matrix. We used ion exchange columns in series to separate copper and tellurium from cadmium in solution. Subsequently, we recovered Cd and Te from the corresponding solutions with electrowinning and reactive precipitation respectively. Electrowinning produced cadmium sheets of 99.5% wt purity in sizes of 2 by 4 cm and

  • Cadmium telluride - Wikipedia

    Cadmium telluride (CdTe) is a stable crystalline compound formed from cadmium and tellurium. It is mainly used as the semiconducting material in cadmium telluride photovoltaics and an infrared optical window. It is usually sandwiched with cadmium sulfide to form a p–n junction solar PV cell. Typically, CdTe PV cells use a n-i-p structure.

  • US20100189612A1 - System and method for separating ...

    US20100189612A1 US12/756,507 US75650710A US2010189612A1 US 20100189612 A1 US20100189612 A1 US 20100189612A1 US 75650710 A US75650710 A US 75650710A US 2010189612 A1 US2010189612 A

  • Rarer than rare earths, the trials and tribulations of ...

    2014-09-23  The principal source of tellurium is from anode sludges produced during the electrolytic refining of blister copper. It is a component of dusts from blast furnace refining of lead. Treatment of 500 tons of copper ore typically yields one pound (0.45 kg) of tellurium. Tellurium is produced mainly in the United States, Peru, Japan and Canada. For the year 2011 the USGS gave the following numbers ...

  • Hydrometallurgical Recycling of Photovoltaic Materials ...

    The cadmium and tellurium contained . in the various recycle-pregnant leach solutions must be separated at a point in order to allow for their reuse. The most robust process appeared . initially to be consisting of sulphur dioxide reduction, as it has been applied for decades in the treatment of copper slimes. Preliminary testwork in this area

  • Leaching of cadmium and tellurium from cadmium telluride ...

    A crushed non-encapsulated CdTe thin-film solar cell was subjected to two standardized batch leaching tests (i.e., Toxicity Characteristic Leaching Procedure (TCLP) and California Waste Extraction Test (WET)) and to a continuous-flow column test to assess cadmium (Cd) and tellurium (Te) dissolution under conditions simulating the acidic- and the methanogenic phases of municipal solid waste ...

  • Cadmium telluride (CdTe) and cadmium selenide (CdSe ...

    Cadmium telluride (CdTe) and cadmium selenide (CdSe) are increasingly being applied in photovoltaic solar cells and electronic components. A major concern is the public health and ecological risks associated with the potential release of toxic cadmium, tellurium, and/or selenium species. In this study, different tests were applied to investigate the leaching behavior of CdTe and CdSe in ...

  • Optimized Leaching Conditions for Selenium from Sar ...

    Optimized Leaching Conditions for Selenium from Sar-Cheshmeh Copper Anode Slimes Abdollahy, ... cadmium, cobalt and manganese. In the periodic table, selenium is located between sulphur and tellurium, therefore it shares characteristics of both elements. Selenium's proximity to tellurium results in important separation problems when these two element co-exist in solution. Both are readily ...

  • Acidic leaching of potentially toxic metals cadmium ...

    Acidic leaching of potentially toxic metals cadmium, cobalt, chromium, copper, nickel, lead, and zinc from two Zn smelting slag materials incubated in an acidic soil. Liu T(1), Li F(2), Jin Z(1), Yang Y(3). Author information: (1)Institute of Geochemistry, Chinese Academy of Sciences, 99 West Lincheng Road, Guiyang, Guizhou, 550002, China. (2)College of Environment, Zhejiang University of ...

  • 20092155-00-5-R Environmental risks of CdTe PV modules ...

    Results from the leaching test (batch test) conducted by the NGI indicated that leaching of tellurium and cadmium from crushed CdTe PV module materials does occur. Leaching of tellurium is significantly higher compared with cadmium, which is likely attributable to the relatively high pH of the leachate (pH 9.6). This pH is favorable to Te dissolution, due to the formation of soluble tellurium ...

  • US20100189612A1 - System and method for separating ...

    US20100189612A1 US12/756,507 US75650710A US2010189612A1 US 20100189612 A1 US20100189612 A1 US 20100189612A1 US 75650710 A US75650710 A US 75650710A US 2010189612 A1 US2010189612 A

  • CiteSeerX — RECYCLING OF CdTe PHOTOVOLTAIC MODULES ...

    Low concentration sulfuric acid solutions were effective in totally leaching cadmium and tellurium out of the Limestone matrix. We used ion exchange columns in series to separate copper and tellurium from cadmium in solution. Subsequently, we recovered Cd and Te from the corresponding solutions with electrowinning and reactive precipitation respectively. Electrowinning produced cadmium sheets of ...

  • Cadmium telluride - Wikipedia

    Cadmium telluride (CdTe) is a stable crystalline compound formed from cadmium and tellurium. It is mainly used as the semiconducting material in cadmium telluride photovoltaics and an infrared optical window. It is usually sandwiched with cadmium sulfide to form a p–n junction solar PV cell. Typically, CdTe PV cells use a n-i-p structure.

  • US20060275191A1 - System and method for separating ...

    US20060275191A1 US11/421,343 US42134306A US2006275191A1 US 20060275191 A1 US20060275191 A1 US 20060275191A1 US 42134306 A US42134306 A US 42134306A US 2006275191 A1 US2006275191 A

  • Tellurium – solar lights metalloid future - North of 60 ...

    Alaska copper deposit may be rich source of solar cell element . Share Tweet 0 Comments. Last updated 6/22/2020 at 11:06am. First Solar Inc. Cadmium telluride thin-film solar cells are providing a lower-cost alternative to conventional silicon-based solar panels. Extremely rare, yet a vital ingredient to emerging solar panel technologies, tellurium is the epitome of what it means to be a ...

  • Hydrometallurgical Recycling of Photovoltaic Materials ...

    of the leaching testwork, whereas the metal recovery testwork results are described in the following paper (part 2). INTRODUCTION. A new generation of low-cost solar . modules based on thin films of photoactive materials such as copper indium diselenide (CuInSe. 2. or “CIS”), cadmium telluride (CdTe), gallium arsenide (GaAs), etc. deposited on inexpensive substrates has increased the ...

  • Acidic leaching of potentially toxic metals cadmium ...

    Acidic leaching of potentially toxic metals cadmium, cobalt, chromium, copper, nickel, lead, and zinc from two Zn smelting slag materials incubated in an acidic soil. Liu T(1), Li F(2), Jin Z(1), Yang Y(3). Author information: (1)Institute of Geochemistry, Chinese Academy of Sciences, 99 West Lincheng Road, Guiyang, Guizhou, 550002, China. (2)College of Environment, Zhejiang University of ...

  • Cadmium telluride (CdTe) photovoltaics SolarFeeds ...

    2019-08-27  Cadmium telluride (CdTe) photovoltaics or also called Cadmium telluride solar cell is a kind of photovoltaic (PV) technology that can produce electricity from sunlight using a thin-film of compound cadmium telluride to absorb and convert sunlight into electricity. Solar photovoltaic technology that is based on cadmium is considered as a thin-film technology due to its active layers which are ...

  • US20060275191A1 - System and method for separating ...

    US20060275191A1 US11/421,343 US42134306A US2006275191A1 US 20060275191 A1 US20060275191 A1 US 20060275191A1 US 42134306 A US42134306 A US 42134306A US 2006275191 A1 US2006275191 A

  • CiteSeerX — RECYCLING OF CdTe PHOTOVOLTAIC MODULES ...

    Low concentration sulfuric acid solutions were effective in totally leaching cadmium and tellurium out of the Limestone matrix. We used ion exchange columns in series to separate copper and tellurium from cadmium in solution. Subsequently, we recovered Cd and Te from the corresponding solutions with electrowinning and reactive precipitation respectively. Electrowinning produced cadmium sheets of ...

  • Dissolution kinetics of tellurium from gold concentrate ...

    The cadmium telluride ... refining of blister copper, and the remainder as a by-product of bismuth and lead processing (Makuei and Senanayake, 2018). Due to heavy losses of tellurium during mineral processing and smelting, the current routes for tellurium production as a metallurgical by-product cannot meet the demand. Therefore, the direct recovery of tellurium from tellurium-bearing ores has ...

  • Long-term leaching of photovoltaic modules - IOPscience

    2017-07-05  In order to identify the leaching mechanisms as well as potential weak spots in the modules, we analyze not only leaching of toxic substances like cadmium (Cd), lead (Pb), and selenium (Se), but also other elements: silver (Ag), zinc (Zn), tellurium (Te), indium (In), gallium (Ga), aluminum (Al), molybdenum (Mo), nickel (Ni), and copper (Cu). To obtain module pieces with well-defined sizes

  • Selective chemical leaching of cadmium, copper manganese ...

    The selective chemical leaching of cadmium, copper, manganese and iron from various minerals has been examined in the laboratory experiment. And the selective leaching technique has been applied to marine sediments to elucidate the role of clay minerals as a scavenger chiefly for cadmium in the sea. The obtained results show that clay minerals assume some significant role for the removal of ...

  • Tellurium extraction from copper electrorefining slimes ...

    1999-08-17  The method comprises leaching the slimes in an autoclave at a temperature of from 100 to 200° C. to dissolve copper, tellurium and nickel, halting the leaching process and adding a reducing agent to reprecipitate excess of silver and/or selenium dissolved in the solution. Although the high temperature and oxygen pressure allows a higher extraction yield of tellurium, it has the major ...