公开(公告)号：EP2147128B1

公开(公告)日：2013-08-28

申请号：EP08757059.4

申请日：2008-05-21

申请人： Votorantim Metais Zinco S.A.

发明人： SOUZA, Adelson Dias de

IPC分类号： C22B58/00 ,  C22C28/00

CPC分类号： C22B58/00 ,  C22B3/0068 ,  C22B3/44 ,  C22B13/04 ,  C22B19/22 ,  C22B19/26 ,  C22C28/00 ,  Y02P10/234 ,  Y10T428/12

公开(公告)号：EP3691081A1

公开(公告)日：2020-08-05

申请号：EP18858866.9

申请日：2018-08-16

申请人： Votorantim Metais Zinco S.A. ,  Universidade Federal De Minas Gerais - UFMG

发明人： MOREIRA GOMES, Rodrigo Alberto ,  GOMES LACERDA, Flávio Augusto ,  CARDOSO FILHO, Braz De Jesus ,  PEREIRA PORTO, Matheus ,  LEITE SILVA MONTEIRO, Juliana Karla

IPC分类号： H02J7/35 ,  H02J3/38 ,  H02J1/12 ,  H02M3/335 ,  C25B9/04

摘要： The present invention refers to a hybrid system for generating electric power used in an electrolysis process for obtaining metals, according to which the integration of two or more sources of electric current occurs, one of which being the grid (SIN) and the others being distributed generation sources, connected to the load supply node, with control of the total direct current to be injected in the load of the process.
The renewable or non-renewable distributed generation sources may be: solar photovoltaic, concentrating solar, wind, fossil fuel generator, diesel generator, steam turbines, combined cycle plants etc.
The power generation system may be used in an electrolysis process for obtaining metals such as zinc, copper, aluminum or nickel.

公开(公告)号：EP2147128A1

公开(公告)日：2010-01-27

申请号：EP08757059.4

申请日：2008-05-21

申请人： Votorantim Metais Zinco S.A.

发明人： SOUZA, Adelson Dias de

IPC分类号： C22B58/00

CPC分类号： C22B58/00 ,  C22B3/0068 ,  C22B3/44 ,  C22B13/04 ,  C22B19/22 ,  C22B19/26 ,  C22C28/00 ,  Y02P10/234 ,  Y10T428/12

摘要： This invention is intended to provide an innovative process to produce pure metallic indium with the use of sulphured concentrates of zinc and lead as sources of the metal. The process begins with the zinc oxide produced by Waelz process from the neutral leaching residues of the zinc oxide calcinate. But the overflow (or supernatant) of the mild leaching of neutral underflow (or residue) of neutral leaching of zinc calcinate also contains indium in lower proportion and may or may not be part of the global process of indium recovery. The new technology is characterized by comprising the following stages: a) Production of indium pre-eoncentrate; b) Production of indium cement: comprised, in turn, of at least a mild leaching and at least one strong leaching of the indium cement product obtained in the reducing leaching; c) Production of indium solution; d) Extraction of indium by organic solvent; e) Cementation of indium; f) Fusion, purification, and ingoting of the metal; g) Electrolysis of indium to obtain a product with high purity more than 99.995%.