Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 6 of 6 for “"Xanthate collectors"”.
-
Etude de la flottabilité de la malachite à l'aide de l'amylxanthate de potassium et d'un acide gras. (Cas d'étude: Flottation du minerai oxydé de Kamfundwa au Katanga en RDC)
… studying the floatability of malachite with xanthate and fatty acids collectors. It focuses from one side on aspects related to surface phenomena and collector attachment mechanisms and on other side on improvement of processing flowsheet at industrial scale. The first part of our results …
-
An electrochemical investigation on the mechanisms of interfacial interactions of a xanthate collector on PGM surfaces in the presence of ions
… in process water hinder the interaction between xanthate collectors and valuable minerals, hence, contributing to a decrease in flotation recoveries (Kirjavainen et al., 2002, Boujounoui et al., 2015). The findings in literature have been deduced without an understanding of the underlying …
-
An investigation into the floatability of platinum group arsenides and tellurides under varying collector and solution chemistries
… (PtAs2). This study has investigated the use of collectors with greater electron-donating properties such as trithiocarbonate and thiourea collectors under the assumption that these collectors would bond more readily with the sperrylite surface and induce floatability of this mineral to a greater …
-
The effect of microbial load and water recycling on the flotation performance of a PGM bearing ore
… in South Africa. In addition, the effects of xanthate collectors such as Sodium Ethyl Xanthate (SEX) and Sodium Isobutyl Xanthate (SIBX), widely employed in sulphide mineral beneficiation, on microbial growth were also considered. Results suggest that the presence of microbial cells and …
-
On the selective flotation of pentlandite from pyrrhotite in Sheba's Ridge ores
… and pyrrhotite to four different chain length xanthate collectors (SEX, SNPX, SIBX and PAX) and to different types of polysaccharide depressants (guar, CMC and starch). The effect of oxygen addition and pH modification were also studied. Laboratory batch flotation tests were then carried out …
-
An investigation into the flotation response of sperrylite (PtAs2) by comparative evaluation of crystal structure and bonding atoms
… This study sought to establish the reasons why xanthate collectors, which are used as the main collector used in industry in the flotation of PGM ores, appear not to promote the flotation of sperrylite. Also, novel collectors were suggested based on the donor-acceptor theory with the aim of …