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Effects of particle size and particle interactions on scheelite flotation ×÷Õß:Yin, WZ (Yin, Wan-zhong)[ 1 ] ; Wang, JZ (Wang, Ji-zhen)[ 1 ] TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA ¾í: 24 ÆÚ: 11 Ò³: 3682-3687 DOI: 10.1016/S1003-6326(14)63515-9 ³ö°æÄê: NOV 2014 ²é¿´ÆÚ¿¯ÐÅÏ¢ ÕªÒª Effects of size distribution (particle size and content of fine fraction (< 10 mu m)) on scheelite flotation were studied using flotation tests and theoretical calculations. The results show that particle size influences the scheelite recovery and the performance of combined reagents. The scheelite recovery is lowered by adding fine particles (< 10 mu m) into the pulp containing coarse particles. Extended DLVO (EDLVO) theory confirms that the fine fractions (< 10 mu m) could interface with the coarse fractions. The interaction energy and fluid forces are relative to the particle size, which might explain why the fine fractions influence the scheelite flotation. The highest recovery of scheelite using combined reagents as collector and optimum ratio of combined reagents were determined by scheelite particle size and reagent performance. However, the optimum adding order was only determined by reagent performance, which has nothing to do with particle size. ¹Ø¼ü´Ê ×÷Õ߹ؼü´Ê:scheelite; flotation; sodium oleate; benzohydroxamic acid; particle size; combined reagents KeyWords Plus:OCTYL-HYDROXAMATE; ADSORPTION; MINERALS ³ö°æÉÌ ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS Àà±ð / ·ÖÀà Ñо¿·½Ïò:Metallurgy & Metallurgical Engineering Web of Science Àà±ð:Metallurgy & Metallurgical Engineering ÎÄÏ×ÐÅÏ¢ ÎÄÏ×ÀàÐÍ:Article ÓïÖÖ:English Èë²ØºÅ: WOS:000346403000033 ISSN: 1003-6326 eISSN: 2210-3384 ÆÚ¿¯ÐÅÏ¢ Impact Factor (Ó°ÏìÒò×Ó): Journal Citation Reports® ÆäËûÐÅÏ¢ IDS ºÅ: AW6UF Web of Science ºËÐĺϼ¯ÖÐµÄ "ÒýÓõIJο¼ÎÄÏ×": 18 Web of Science ºËÐĺϼ¯ÖÐµÄ "±»ÒýƵ´Î": 0 |
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