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博文

目前显示的是标签为“Zeta Potential”的博文

Surface Activity Interactions in Aqueous Solution of Anionic Surfactants with a Water Treatment Protein from Moringa oleifera Seeds

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53962#.VN2neyzQrzE Author(s)   Habauka M. Kwaambwa 1* , Raymond Maikokera 2 , Fiona M. Nermark 3   Affiliation(s) 1 Polytechnic of Namibia, School of Health and Applied Sciences, Windhoek, Namibia . 2 Varichem Pharmaceuticals, Harare, Zimbabwe . 3 Botswana College of Agriculture, Gaborone, Botswana . ABSTRACT The interaction of anionic surfactants sodium dodecylbenzenesulphonate (SDBS) and sodium bis (2-ethyl-1-hexylsulfosuccinate) (AOT) with the water treatment protein extracted from Moringa oleifera seeds has been investigated by surface tension measurements. The results were compared with previously reported studies using surface tension and zeta potential measurements of the same protein with an anionic surfactant sodium dodecylsulphate. There is a strong electrostatic interaction between the protein and the surfactants characterized by a loca...

Biodegradable Quaternary Ammonium Salts for Processing Iron Ores

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=47888#.VEdE-lfHRK0 Author(s) Xiaoqing Weng , Anh V. Nguyen , Guangjun Mei , Yongfu Yu Affiliation(s) School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, China . School of Chemical Engineering, The University of Queensland, Brisbane, Australia . School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, China . School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, China . ABSTRACT Two biodegradable quaternary ammonium salts were synthesized and used as cationic collectors in processing iron ores by froth flotation. The flotation...