Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Nicholas J. Welham"'
Publikováno v:
Mongolian Journal of Chemistry, Vol 19, Iss 45, Pp 44-48 (2018)
The lithium (Li) bearing minerals lepidolite and spodumene were mixed with different mass ratios of Na2SO4 and mechanically activated by milling in a planetary ball mill for 5 h. The milled samples were studied using thermogravimetry under an air atm
Externí odkaz:
https://doaj.org/article/5380bf76232f4809b4103c146af02bc2
Publikováno v:
Mongolian Journal of Chemistry, Vol 19, Iss 45, Pp 1-4 (2018)
A Mongolian chalcopyrite flotation concentrate was leached using sodium hypochlorite adjusted to different pH using hydrochloric acid. It was found that using a starting pH of below 5.0 resulted in more efficient leaching. The extent of chalcopyrite
Externí odkaz:
https://doaj.org/article/877777f02c034d5cb46a3115e9fdfd54
Publikováno v:
Mineral Processing and Extractive Metallurgy. 130:354-361
Mixtures of lepidolite ore and sodium sulfate (Na2SO4) at mass ratios of 1:0.5 and 1:1 were prepared and milled using zirconia media in a planetary ball mill for 5 h. The 5 h milled samples were he...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e48fc40dbd6ebd227f052a5b9872ffc3
https://doi.org/10.1080/25726641.2019.1649112
https://doi.org/10.1080/25726641.2019.1649112
Publikováno v:
Mongolian Journal of Chemistry, Vol 19, Iss 45, Pp 1-4 (2018)
A Mongolian chalcopyrite flotation concentrate was leached using sodium hypochlorite adjusted to different pH using hydrochloric acid. It was found that using a starting pH of below 5.0 resulted in more efficient leaching. The extent of chalcopyrite
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::798a0abb44083bddd9e19c8372fa67be
https://www.mongoliajol.info/index.php/MJC/article/view/1082
https://www.mongoliajol.info/index.php/MJC/article/view/1082
Publikováno v:
Mongolian Journal of Chemistry, Vol 19, Iss 45, Pp 44-48 (2018)
The lithium (Li) bearing minerals lepidolite and spodumene were mixed with different mass ratios of Na2SO4 and mechanically activated by milling in a planetary ball mill for 5 h. The milled samples were studied using thermogravimetry under an air atm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d68aff4f59cd0a6856fc687ee93541e
https://www.mongoliajol.info/index.php/MJC/article/view/1090
https://www.mongoliajol.info/index.php/MJC/article/view/1090
Autor:
Nicholas J. Welham, N. Setoudeh
Publikováno v:
Journal of Materials Science. 52:6388-6400
Stoichiometric mixtures of ZnS + Al and ZnS + Mg were milled for different times in a planetary ball mill. The XRD traces of the as-milled samples showed the presence of zinc, MgZn2, and MgS after 30-min milling in the ZnS–Mg system. The traces of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3e77cc254ebb182bdaabd97f8b4ee97
https://doi.org/10.1007/s10853-017-0873-4
https://doi.org/10.1007/s10853-017-0873-4
Publikováno v:
Minerals Engineering. 155:106455
Mixtures of spodumene + Na2SO4 with a mass ratio of 1:0.5 were prepared and milled using either zirconia or metallic media in a planetary ball mill for 5 h. The milled samples were heated in a furnace at temperatures ranging from 800 °C to 1000 °C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::400a86bbf5e927857a2c7a6f912ee709
https://doi.org/10.1016/j.mineng.2020.106455
https://doi.org/10.1016/j.mineng.2020.106455
Publikováno v:
Minerals Engineering. 151:106294
Mixtures of a petalite flotation concentrate and sodium sulphate (Na2SO4) with mass ratios of 1:0.5 and 1:1 were prepared and milled for 5 h using zirconia media in a planetary ball mill. The milled mixtures were heated at 800–1000 °C for 1 h in a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f020cc39bc89e0c3ecfff57f32c0b70
https://doi.org/10.1016/j.mineng.2020.106294
https://doi.org/10.1016/j.mineng.2020.106294
Autor:
Andrew N. Jones, Nicholas J. Welham
Publikováno v:
Hydrometallurgy. 103:173-179
Synthetic mixed nickel–cobalt hydroxide precipitates (MHP) were produced containing varying levels of Ni, Co, Mn, Mg, Al, Fe, Cr, Cu, Zn and Si to understand and characterize the ageing processes and subsequent nickel and cobalt leach recovery. Pre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5c9ffaa9aad65731b976e27acd89934
https://doi.org/10.1016/j.hydromet.2010.03.017
https://doi.org/10.1016/j.hydromet.2010.03.017
Publikováno v:
Materials Science Forum. :2743-2748
Two types of titanium oxide were used, rutile (>99.9% TiO2) and anatase (>99% TiO2). Both samples were mixed with graphite in accordance with the required stoichiometry, and then milled in a tumbling mill for 50 hours in an argon atmosphere to ensure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ac03bb58ea6a81ef9dba148fa449f68
https://doi.org/10.4028/www.scientific.net/msf.539-543.2743
https://doi.org/10.4028/www.scientific.net/msf.539-543.2743