Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Eder Domingos de Oliveira"'
Autor:
Gustavo Matheus de Almeida, Josemar Pereira da Silva, Eder Domingos de Oliveira, Márcio Ribeiro Vianna Neto
Publikováno v:
The Journal of Engineering and Exact Sciences. 6:0655-0665
Os mapas de curvas residuais são muito úteis para interpretar o desempenho da destilação azeotrópica de sistemas homogêneos. Esses mapas são obtidos através de um sistema de equações diferenciais, comumente resolvido em duas etapas, a saber
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::093234e8ae18c46602f14ac85e6eeb97
https://doi.org/10.18540/jcecvl6iss5pp0655-0665
https://doi.org/10.18540/jcecvl6iss5pp0655-0665
Publikováno v:
Mining, Metallurgy & Exploration. 37:519-535
The objective of this work was to assess the influence of parameters such as residence time, solid content, and temperature in a process route towards purified rare earth liquor which could be adequate to produce marketable rare earth products. The s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f11d2978f45c4aad54bc0e372ae5fdf
https://doi.org/10.1007/s42461-020-00179-9
https://doi.org/10.1007/s42461-020-00179-9
Publikováno v:
Mining, Metallurgy & Exploration. 37:65-78
The objective of this study is to assess the impact of different reagents, such as limestone, lime, magnesium oxide, and sodium hydroxide, in experiments carried out in the single purification step and in two consecutive purification steps by raising
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17a20da45c1ce8d2596b698376f78a8d
https://doi.org/10.1007/s42461-019-00139-y
https://doi.org/10.1007/s42461-019-00139-y
Autor:
Carlos Antonio Morais, Ruberlan Gomes da Silva, Leandro Augusto Viana Teixeira, Eder Domingos de Oliveira
Publikováno v:
Mining, Metallurgy & Exploration. 36:967-977
The purity of rare earth products depends on the ability of the reagents used to selectively promote the precipitation of the rare earth elements (REE) from impurities present in sulfuric liquors. The present study aims at investigating the condition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c24c477646da28bcbf8f2382b4424e2c
https://doi.org/10.1007/s42461-019-0090-6
https://doi.org/10.1007/s42461-019-0090-6
Publikováno v:
Minerals Engineering. 134:402-416
The conventional hydrometallurgical process routes for the recovery of rare earth elements (REEs) from ores employs sulfuric acid. After being leached, the rare earth sulfate liquor presents impurities that need to be removed before they can be used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0a50fa7273a63e85a90add60147aa35
https://doi.org/10.1016/j.mineng.2019.02.028
https://doi.org/10.1016/j.mineng.2019.02.028
Autor:
Eder Domingos de Oliveira, Carlos Morais, Leandro Augusto Viana Teixeira, Ruberlan Gomes da Silva
Publikováno v:
Minerals Engineering. 127:238-246
In order to obtain a marketable rare earth product, purity requirements need to be met. More specifically, purification needs to be undertaken before precipitation. This addresses the technical feasibility of the use of different reagents such as lim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99d9f932ff24e18264ddf64e3279c75e
https://doi.org/10.1016/j.mineng.2018.08.007
https://doi.org/10.1016/j.mineng.2018.08.007
Autor:
Eder Domingos de Oliveira, Carlos Morais, Ruberlan Gomes Silva, Leandro Augusto Viana Teixeira
Publikováno v:
Tecnologia em Metalurgia Materiais e Mineração. 15:399-408
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0512c292c87757e66c52bc9c9db0ab05
https://doi.org/10.4322/2176-1523.20181470
https://doi.org/10.4322/2176-1523.20181470
Autor:
Daniel M Saturnino, Eder Domingos de Oliveira, Ruberlan Gomes da Silva, Marcelo Martins Seckler, Sônia Denise Ferreira Rocha
Publikováno v:
Journal of Materials Research and Technology, Vol 6, Iss 1, Pp 57-64 (2017)
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Chemical fertilizers, such as potassium chloride, ammonium nitrate and other chemical products like sodium hydroxide and soda ash are produced from electrolyte solutions or brines with a high content of soluble salts. Some of these products are manuf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12a565f19e9332112969cf6475779b98
https://doi.org/10.1016/j.jmrt.2016.05.006
https://doi.org/10.1016/j.jmrt.2016.05.006
Publikováno v:
Minerals Engineering. 139:105865
One of the worlds most abundant of all the rare earth elements (REE) is cerium. It represents about 50 wt% of total REE content in the main rare earth minerals used industrially (monazite and bastnaesite). However, cerium is not a valuable product if
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3b0230dae1c8675f0a18927ae277450
https://doi.org/10.1016/j.mineng.2019.105865
https://doi.org/10.1016/j.mineng.2019.105865
Publikováno v:
Chemical Engineering & Technology. 33:1850-1858
This work presents a mathematical model for the vinyl acetate and n-butyl acrylate emulsion copolymerization process in batch reactors. The model is able to explain the effects of simultaneous changes in emulsifier concentration, initiator concentrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c07f8882ad1560ce8b269429edd31d04
https://doi.org/10.1002/ceat.201000250
https://doi.org/10.1002/ceat.201000250