Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Ramiro Conceição Nascimento"'
Autor:
Maria Cristina Yukiko Nakayama, Estefano Aparecido Vieira, Ramiro Conceição Nascimento, Adonias Ribeiro Franco Júnior, Jaime Alberto Sanchez Caceres
Publikováno v:
Materials Research, Vol 27 (2024)
The reduction of cobalt oxide (Co3O4) powders was studied using hydrogen plasma (HP) and hydrogen gas at low temperatures. The reduction experiments were performed in a pulsed plasma reactor at 540 V, 532 Pa, under atmospheres of 100% hydrogen at a f
Externí odkaz:
https://doaj.org/article/2bd03e6591d046978a6336fb8412ee9e
Autor:
Iraldo Sá Silveira, Estéfano Aparecido Vieira, Ramiro Conceição Nascimento, Adonias Ribeiro Franco Júnior, Jaime Alberto Sanchez Caceres
Publikováno v:
Materials Research, Vol 27 (2024)
The reduction kinetics of hematite (Fe2O3) powders was studied using nonequilibrium hydrogen plasma as reducing agent. Reduction experiments were performed in a DC pulsed plasma reactor, hydrogen flow-rate of 300 cm3/min, at pressure of 400 Pa, reduc
Externí odkaz:
https://doaj.org/article/568cc5d99c0745a2bbd5d7b9fbc3e648
Autor:
Tiago Bristt Gonoring, Adonias Ribeiro Franco, Jr., Estéfano Aparecido Vieira, Ramiro Conceição Nascimento
Publikováno v:
Journal of Materials Research and Technology, Vol 20, Iss , Pp 2173-2187 (2022)
This study deals with the reduction of hematite fines by cold hydrogen plasma in the temperature range of 360–450 °C. It aims to examine the rate-controlling processes of fine hematite reduction by hydrogen plasma. The gaseous reduction was also p
Externí odkaz:
https://doaj.org/article/d5fc6c8fbc194909b56e23abaa2fab5e
Autor:
Iraldo de Sá Silveira, Estéfano Aparecido Vieira, Ramiro Conceição Nascimento, Adonias Ribeiro Franco Júnior
Publikováno v:
Tecnologia em Metalurgia, Materiais e Mineração, Vol 11, Iss 4, Pp 346-354 (2014)
The goal of this work was to study the reduction kinetics of hematite powders (Fe2O3) using cold hydrogen plasma as reducing agent. Reduction experiments were carried out in a DC pulsed plasma reactor, under hydrogen flow-rates of 300 cm3/min, at p
Externí odkaz:
https://doaj.org/article/82652c89d89c4c1386d584789b707697
Publikováno v:
Mining, Metallurgy & Exploration. 37:1653-1665
Mixed hydroxide precipitate (MHP) is a nickel intermediate product that has economical benefits to downstream leaching of lateritic marginal ores. Usually, this product is subsequently processed and refined to produce nickel by hydrometallurgy, but a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b77941f4272e8714cba7a417ce096ace
https://doi.org/10.1007/s42461-020-00235-4
https://doi.org/10.1007/s42461-020-00235-4
Autor:
Ramiro Conceição Nascimento, Edemir Carlos Camargo de Menezes, Maria Cristina Yukiko Nakayama, Adonias Ribeiro Franco Júnior, Estéfano Aparecido Vieira
Publikováno v:
ABM Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78ddddd060e5e72899397c81fa59334a
https://doi.org/10.5151/1516-392x-27079
https://doi.org/10.5151/1516-392x-27079
Publikováno v:
Anais do Congresso Anual da ABM.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5da71cedd005b179ec65f7cf09e9cea8
https://doi.org/10.5151/1516-392x-30183
https://doi.org/10.5151/1516-392x-30183
Publikováno v:
Anais dos Seminários de Redução, Minério de Ferro e Aglomeração.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a269a9c33fe477f78900dff563b3db16
https://doi.org/10.5151/2594-357x-30120
https://doi.org/10.5151/2594-357x-30120
Autor:
Iraldo de Sá Silveira, Estéfano Aparecida Vieira, Adonias Ribeiro Franco Júnior, Ramiro Conceição Nascimento
Publikováno v:
Tecnologia em Metalurgia Materiais e Mineração. 11:346-354
The goal of this work was to study the reduction kinetics of hematite powders (Fe2 O3 ) using cold hydrogen plasma as reducing agent. Reduction experiments were carried out in a DC pulsed plasma reactor, under hydrogen flow-rates of 300 cm3 /min, at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d15f85c8fdbeca4ae77e9e48f4e20b0
https://doi.org/10.4322/tmm.2014.050
https://doi.org/10.4322/tmm.2014.050
Autor:
José Roberto de Oliveira, Sayd Farage David, Ramiro Conceição Nascimento, Heitor Cristo Clem de Oliveira, Felipe Nylo de Aguiar
Publikováno v:
Tecnologia em Metalurgia Materiais e Mineração. 9:242-249
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e8d5e5c88aadb225af872d964884888
https://doi.org/10.4322/tmm.2012.034
https://doi.org/10.4322/tmm.2012.034