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Hydrometallurgical recycling process for mobile phone printed circuit boards using ozone

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27740%2F21%3A10247458" target="_blank" >RIV/61989100:27740/21:10247458 - isvavai.cz</a>

  • Alternative codes found

    RIV/61989100:27230/21:10247458 RIV/61989100:27360/21:10247458 RIV/61989100:27640/21:10247458

  • Result on the web

    <a href="https://www.mdpi.com/2075-4701/11/5/820/htm" target="_blank" >https://www.mdpi.com/2075-4701/11/5/820/htm</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.3390/met11050820" target="_blank" >10.3390/met11050820</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Hydrometallurgical recycling process for mobile phone printed circuit boards using ozone

  • Original language description

    Printed circuit boards (PCBs) can be an important source of non-ferrous metals (Al, Sn, Zn, and Ni) and precious metals (Au, Ag, Cu, and Pd). With the continuous increase in demand for metals due to the depletion of ores, recycling of this waste is becoming an attractive alternative. The printed circuits also contain hazardous metals, such as Pb, Hg, As, and Cd. Due to the huge increase in the amount of e-waste, the processing of printed circuit boards for metal recovery and proper handling of hazardous substances has a positive effect on the environment. Pyrometallurgical and hydrometallurgical methods are used for the treatment of this waste. Various oxidizing agents are used in the hydrometallurgical processes, including ozone. PCBs from mobile phones were assessed for the recovery of Cu, Sn, and precious metals. The ground and sieved materials were leached in nitric acid, hydrochloric acid, and sulfuric acid at various process parameters, such as leaching time, leaching agent, and temperature. It was found that the best result was obtained using hydrochloric acid with the addition of ozone at 353 K for a period of 4 h to obtain 68.45 g/dm3 of copper. Preliminary results of electrolysis and cementation are also presented. (C) 2021 by the authors. Licensee MDPI, Basel, Switzerland.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20500 - Materials engineering

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Metals

  • ISSN

    2075-4701

  • e-ISSN

    2075-4701

  • Volume of the periodical

    11

  • Issue of the periodical within the volume

    5

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    10

  • Pages from-to

    820

  • UT code for WoS article

    000662584600001

  • EID of the result in the Scopus database

    2-s2.0-85105880338