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DYNA

versão impressa ISSN 0012-7353versão On-line ISSN 2346-2183

Resumo

BALLESTEROS, Clara; ACELAS, Mauricio; OVIEDO, Jenny A.  e  QUINTERO, Gilberto. Design of a scheelite production pilot plant for the treatment of spent electroless nickel plating solutions in Field Service Solution S.A.S.: an alternative source for tungsten recycling. Dyna rev.fac.nac.minas [online]. 2021, vol.88, n.218, pp.81-87.  Epub 18-Mar-2022. ISSN 0012-7353.  https://doi.org/10.15446/dyna.v88n218.89035.

In this contribution, the design considerations to assemble a pilot-plant for tungsten recovery and further conversion into synthetic scheelite as raw material, as an eco-friendly improvement for the current electroless nickel process in Field Service Solution (FES) S. A. S., are presented. This low-cost methodology scale-up aims to provide an alternative treatment for spent electroless nickel solutions (Ni-P-W) as a secondary tungsten source. The plant is projected to treat up to 750 L of industrial waste per week, achieving a maximum scheelite production of 9.1 kg per week. This prototype serves as a model of eco-sustainability in the nickel-plating industry by controlling the disposal of heavy metals and by facilitating the production of other tungsten derivatives and their feasible reuse in the process.

Palavras-chave : tungsten recycling; spent solutions; electroless nickel; scheelite.

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