%0 Journal Article
%T EFFECT OF FINE GRINDING ACTIVATION ON LEACHING BEHAVIOUR OF SCHEELITE CONCENTRATE
%A LI Ximing CHEN Jiayong Institute of Chemical Metallurgy
%A Academia Sinica
%A Beijing
%A ChinaR.KAMMEL Institut Für Metallurgie
%A Technische Universitt Berlin
%A Germany Research Assistant
%A Institute of Chemical Metallurgy
%A Academia Sinica
%A Beijing
%A China
%J 金属学报(英文版)
%D 1992
%I 
%X The influence of mechanical activation on the leaching behaviour of scheelite was studied by means of fine grinding in an attritor and subsequently HCl leaching in presence of PO_4~(3-). Results showed that after fine grinding in the attritor,the reaction rate of scheelite with HCl-Na_3PO_4 solution was remarkably increased,the extraction of W increased from about 8 to 99%.The IR spectra and X-ray diffraction analysis indicated that in addition to an enlargement of surface area the fine grinding action had made also changes of fine struc- ture and reactivity of solid surface,hence the leaching process of scheelite can be carried out under mild leaching conditions.
%K scheelite
%K fine grinding
%K acid leaching
%K mechanical activation<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=B8EF24EA8E2419C1A8457F54E4578E77&yid=F53A2717BDB04D52&vid=94C357A881DFC066&iid=9CF7A0430CBB2DFD&sid=D59111839E7C8BDF&eid=0B4F496D54044D86&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=6