Czasopismo | RUDY I METALE NIEŻELAZNE | Rocznik 2012 - zeszyt 1

A NEW TECHNOLOGY TO RECOVER COPPER AND OTHER METALS FROM BY-PRODUCT AND WASTEWATERS OF COPPER INDUSTRY

nr katalogowy: 65541

The aim of the project was to develop in situ manufacturing technology to recover copper and other metals from by‐product and wastewaters of copper industry. The potential environment and raw material is the wastewater which is a by‐product of the copper ore flotation process and byproducts of the copper electrorefining process. The accumulation of waste is growing engineering and potentially ecological problems. Chemical analysis of the waste showed that a series of metals such as: Cd, Hg, Pb, Cu, Ag, Co, Ni, Hf, Nb, Os, Re, Rh, Sc, Th, V, W, Zn, Zr etc. are contained in solid and liquid frac‐tion. Due to the complex matrix of the wastewater and relatively low concentrations of the metals currently there are no economically viable technologies available to recycle the metals into the market products. The development of nanotech‐nologies and its commercial applications create the opportunity to exploit the copper wastewater to undertake a manufac‐turing of nanopowders/nanoflakes which are currently commercially used. In the present paper we refer the studies con‐cerning recovery of copper and other metals based on classical pulse electrolysis with application of ultramicroelectrodes and arrays of ultramicroelectrodes. Depending on the kind of applied pulse electrolysis, nanopowders or nanofoil/flakes can be obtained. The potentiostatic pulse electrolysis enables commercial manufacturing of copper and silver nanopow‐ders of chemical purity up to 99.999 %. Depending on the size of the cathode, its material and type metal, the conditions of the electrolysis e.g. temperature, the powders or nanopowders of different shapes, structures and dimensions are ob‐tained. The purity of obtained powders is ranging from 99 %+ to 99.999 %+. The mechanism and kinetics of electrocrystal‐lization process were also examined using electrochemical methods. The application of galvanostatic pulse electrolysis al‐lowed ob[...]

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e-Publikacja (format pdf) - nr 65541 "A NEW TECHNOLOGY TO RECOV..." licencja: Osobista Produkt cyfrowy	10.00 zł

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RUDY I METALE NIEŻELAZNE - e-zeszyt (pdf) 2012-1 licencja: Osobista Produkt cyfrowy	32.00 zł
RUDY I METALE NIEŻELAZNE - e-zeszyt (pdf) 2012-10 licencja: Osobista Produkt cyfrowy	32.00 zł
RUDY I METALE NIEŻELAZNE - e-zeszyt (pdf) 2012-11 licencja: Osobista Produkt cyfrowy	32.00 zł
RUDY I METALE NIEŻELAZNE - e-zeszyt (pdf) 2012-12 licencja: Osobista Produkt cyfrowy	32.00 zł

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2012-1

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