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Adsorption: an interesting hydrometallurgical option to remove ions from water mines
(2017)
Undoubtedly, one of the most promissing hydrometallurgical alternatives for removal of ionic
pollutants from acidic aqueous solutions are adsorption methods due to their simplicity of use and
availability of many different ...
Reagent-free flow-injection amperometric sensor for quantification and speciation of iron for bio-hydrometallurgical applications
(Elsevier Science Sa, 2015-12)
Iron ions are monitored in processes such as bio-leaching, bio-oxidation, ferric leaching, passivation control, and others. The role of iron in different hydrometallurgy processes is very important because it affects ...
X-Ray fluorescence analytical methodology for the determination of Nb, Ta, Fe and Mn extracted in hydrometallurgic processes
(Plapiqui, 2004-01)
Analytical methodologies were developed for the quantification of niobium, tantalum, iron and manganese in samples of minerals and solid residues coming from ore pressure leaching, using different acids. The adopted ...
Lead adsorption from aqueous solution using manganese oxides recovered from spent alkaline batteries
(Widener University School of Civil Engineering, 2020-05-01)
Lead is a highly toxic element and can cause serious illnesses, as a consequence of this, stringent limits have been set for this element, especially regarding drinking water. In this paper, the potential of manganese ...
Comparative study of alternative methods for the simultaneous determination of fe+3 and fe+2 in leaching solutions and in acid mine drainages
(PERGAMON-ELSEVIER SCIENCE LTD, 2005)
In leaching solutions coming from the hydrometallurgical processing of copper sulphides, it is necessary to determine the concentrations of Fe-total,Fe- Fe+2 and Fe+3. It is known that the 5-sulfosalicylic acid (SSA) forms ...
Comparative study of alternative methods for the simultaneous determination of Fe+3 and Fe+2 in leaching solutions and in acid mine drainages
(PERGAMON-ELSEVIER SCIENCE LTD, 2005-09)
In leaching solutions coming from the hydrometallurgical processing of copper sulphides, it is necessary to determine the concentrations of Fe-total,Fe- Fe+2 and Fe+3. It is known that the 5-sulfosalicylic acid (SSA) forms ...
Análise da caracterização de catalisadores do tipo TWC visando recuperação de Pt, Rh e Pd
(Universidade Federal de São Paulo, 2022-12-13)
Os catalisadores automotivos compõem uma grande fração no mercado mundial de catalisadores químicos. Seu desenvolvimento está intrinsicamente vinculado a necessidade de se atender à legislação ambiental corrente, que ...
Desenvolvimento de Processos Hidrometalúrgicos para a Reciclagem de Metais de Baterias de Ni-MH de Telefones Celulares
(Universidade Federal do Espírito SantoBRMestrado em QuímicaPrograma de Pós-Graduação em QuímicaUFES, 2012-08-01)
Neste trabalho, um método hidrometalúrgico para a recuperação dos metais terras raras, cobalto, níquel, ferro e manganês dos eletrodos negativos exauridos das baterias de telefone celular é desenvolvido. Os compostos das ...
Reciclagem de sucata de jóias para a recuperação hidrometalúrgica de ouro e prata
(Universidade Federal de Minas GeraisUFMG, 2009-03-05)
A great amount of scrap metal wastes away in the manufacturing of gold jewelry, which due the lack of knowledge of precious metals recovery used in its manufacturing. A part of this scrap material is considered as a ...