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Preliminary Study of the Effect of Stirring Rate, Temperature and Oxygen Pressure on the Leach Rate of Copper Powder, Generated by Grinding of Printed Circuit Boards of Computer

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Characterization of Minerals, Metals, and Materials 2017

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

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Abstract

For this study, a sample of 5 g of copper powders obtained by grinding printed circuit boards of computers fixe to 50 mesh (270 μm) according Tyler® series was used. This sample was wholly characterized by XRD, SEM–EDS and AAS. The leaching medium used was \( {\text{O}}_{ 2}{-}{{{\text{S}}_{ 2} {\text{O}}_{ 3}}^{{ 2{-}}}} \). From the evaluated variables it was obtained an apparent order of the reaction of n = 2.34 s−1, whereas according the effect of partial oxygen pressure it was obtained an apparent order of reaction of n = 0.9516 and the activation energy of system was of 6.5 kJ mol−1, the results so achieved suggest a transport control to the solid–liquid interface. Under certain work conditions such as: \( {{\text{S}_{2}\text{O}_{3}}^{2-}}= 0.5\,\text{M} \), 500 mL, 750 min−1, P/PO2 = 1 atm, 338 K, 5 g of sample and 9000 s of reaction time, it is possible get up to 97.35% of leached copper.

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Authors and Affiliations

  1. Área Académica de Ciencias de la Tierra y Materiales, Universidad Autónoma del Estado de Hidalgo, Carr. Pachuca-Tulancingo Km 4.5, 42184, Mineral de La Reforma, Hidalgo, Mexico

    M. A. Mesinas Romero, I. Rivera Landero, M. I. Reyes Valderrama, E. Salinas Rodríguez, J. Hernández Ávila & E. Cerecedo Sáenz

  2. Instituto Politécnico Nacional, Escuela Superior de Ingeniería Química e Industrias Extractivas, Avenida Instituto Politécnico Nacional s/n, 07738, Gustavo A. Madero, Lindavista, Mexico

    E. G. Palacios Beas

Authors
  1. M. A. Mesinas Romero
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  2. I. Rivera Landero
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  3. M. I. Reyes Valderrama
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  4. E. Salinas Rodríguez
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  5. J. Hernández Ávila
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  6. E. Cerecedo Sáenz
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  7. E. G. Palacios Beas
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Corresponding author

Correspondence to M. A. Mesinas Romero .

Editor information

Editors and Affiliations

  1. Al Isra University , Amman, Jordan

    Shadia Ikhmayies

  2. Michigan Technological University, Houghton, Michigan, USA

    Bowen Li

  3. Los Alamos National Laboratory, Los Alamos, New Mexico, USA

    John S. Carpenter

  4. Canmet Materials , Hamilton, Ontario, Canada

    JIan Li

  5. Michigan Technological University, Houghton, Michigan, USA

    Jiann-Yang Hwang

  6. Military Institute of Engineering, IME, Rio De Janeiro, Brazil

    Sergio Neves Monteiro

  7. Poltecnico di Torino , Turin, Italy

    Donato Firrao

  8. ArcelorMittal Global R&D, East Chicago, Indiana, USA

    Mingming Zhang

  9. Central South University , Changsha, China

    Zhiwei Peng

  10. University of New South Wales , Canberra, Australia

    Juan P. Escobedo-Diaz

  11. Chongqing University , Chongqing, China

    Chenguang Bai

  12. Middle East Technical University , Ankara, Turkey

    Yunus Eren Kalay

  13. Naval Research Laboratory , Washington, District of Columbia, USA

    Ramasis Goswami

  14. Korea Railroad Research Institute, Uiwang, Korea (Republic of)

    Jeongguk Kim

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© 2017 The Minerals, Metals & Materials Society

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Mesinas Romero, M.A. et al. (2017). Preliminary Study of the Effect of Stirring Rate, Temperature and Oxygen Pressure on the Leach Rate of Copper Powder, Generated by Grinding of Printed Circuit Boards of Computer. In: Ikhmayies, S., et al. Characterization of Minerals, Metals, and Materials 2017. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-51382-9_77

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