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Evaluation of saponins as acid mist suppressants in zinc electrowinning
(ELSEVIER SCIENCE BV, 2004)
Generation of acid mist is a major concern in zinc electrowinning (EW) due to its detrimental effects on worker's health, the environment and plant infrastructure. One of the effective methods for acid mist control is to ...
Effect of organic impurities on the morphology and crystallographic texture of zinc electrodeposits
(Elsevier Science, 2017-05)
This work describes the effect of some organic impurities on the quality of zinc deposits and on the efficiency of the electrowinning process. The presence of some organics (i.e., flotation collectors, flocculant and ...
A novel device for testing the mechanical behavior of metal electrodeposits during cathode stripping
(Elsevier Science, 2017-05)
The effect of the morphology and the crystallographic texture on the mechanical behavior of zinc electrodeposits is described. The mechanical behavior was assessed with a customized bending device and correlated to the ...
Estudo experimental para uso de sistema híbrido de energia renovável com células fotovoltaicas orgânicas em processo de eletrorrecuperação de zinco
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA MECÂNICAPrograma de Pós-Graduação em Engenharia MecanicaUFMG, 2021-04-01)
This work evaluated the use of a customized hybrid renewable energy system (HRES) with organic photovoltaic (OPV) cells for producing a high-purity metal by electrowinning. This process usually represents the most energy ...
Desenvolvimento de reator eletroquímico de leito particulado para processo hidrometalúrgico de produção de cobre
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Engenharia Química - PPGEQ, 2014-08-22)
Typical hydrometallurgical processes for metal production such as zinc, copper, nickel and cobalt, among others, are carried out in huge electrochemical tankhouses since only low current densities can be applied in order ...
Efeito da densidade de corrente, simulada a partir da variabilidade da irradiância solar, sobre a eficiência da eletrorrecuperação de zinco e qualidade do produto
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA METALÚRGICAPrograma de Pós-Graduação em Engenharia Metalúrgica, Materiais e de MinasUFMG, 2022-04-12)
The present work evaluates the effects of current density at fixed or highly-variable intensities on the energy efficiency of the zinc electrowinning process and quality of the final product. Considering the uncertainties ...
Melhorias na cementação seletiva de Cd e Ni/Co a partir do eletrólito industrial de zinco
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA METALÚRGICAPrograma de Pós-Graduação em Engenharia Metalúrgica, Materiais e de MinasUFMG, 2020-10-30)
The selective removal of cadmium, cobalt and nickel from electrolyte prepared on a laboratory scale and industrial zinc sulfate electrolyte (150-160g.L-1) was investigated. The selective removal of cadmium (from 640-740mg.L-1 ...
Recovery of copper, zinc, gold and silver from polymetallic ores in oxidative ammonia leaching solutionRecuperación de cobre, zinc, oro y plata desde minerales polimetálicos por lixiviación en solución oxidante amoniacal
(Universidad Nacional Mayor de San Marcos, Facultad de Ingeniería Geológica, Minera, Metalúrgica y Geográfica, 2023)
Recuperação de zinco presente em efluentes industriais produzidos pela Votorantim Metais unidade Três Marias utilizando-se a técnica de extração líquido-líquido
(Universidade Federal de Minas GeraisUFMG, 2006-04-07)
The adequate treatment of industrial effluents and residues is imperative in order to avoid the contamination of environment. Such materials may pollute soil and rivers if discharged without treatment of even if they are ...