Preparation of Standard Materials for Composition Analysis of Stone Coal Vanadium Ore by TIAN Zong-ping, PENG Jun, WANG Gan-zhen, YI Xiao-ming, CAO Jian, QIN Yi

“…METHODS Ore samples, roof and floor rocks and artificially stripped high-grade samples were collected from four large stone coal vanadium districts, including Xiaoyuanchong vanadium mine in Chongyang County, Hubei Province, the Niuguuping in Zhijiang County, Hunan Province, the Yantouzhai in Guzhang County, Hunan Province, and the Heichong in Fenghuang County, Hunan Province. The samples were subjected to jaw-type primary crushing, roller crushing, coarse-grain sieving and mixing, ore blending and mixing, disc fine grinding, fine-grain sieving, and inactivation. …”
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