摘要
采用国际先进的MLA检测技术,结合传统工艺矿物学研究表明,某夕卡岩型钨钼伴生矿虽品位低,但综合回收价值较高。矿石中钨主要以含钼白钨矿矿物形式存在,以类质同象进入白钨矿晶格的钼占原矿总钼的16.89%。钼主要以辉钼矿矿物形式存在。当磨矿细度-0.074 mm占62%左右时,白钨矿单体解离近90%,而辉钼矿解离不到80%。钨、钼与本矿石中约占矿物总量三分之二的钙铁榴石、透辉石、透闪石等电磁性脉石连生关系不密切,分布于其中的钨、钼金属量分别仅2.8%、5.8%。因而可采用强磁选预先丢废而达到简化钨、钼精选。
The researches on a skarn tungsten-molybdenum ore by the internationally advanced MLA testing technology and traditional process mineralogy show that the grade of W and Mo is low with high comprehensive recycling value. The tungsten mainly occurs in the form of scheelite while the molybdenum principally exists as molybdenite, and the molybdenum as isomorphous addition existing in the lattice of scheelite accounts for 16.89 % of the total molybdenum. The liberation degree of scheelite is close to 90 % while that of molybdenite is less than 80 % at the grinding fineness 62 % -0.074 mm. The tungsten and molybdenum contained in the magnetic gangue minerals accounts for 2.8 % and 5.8 % respectively. Considering that the magnetic gangue minerals including andradite tremolite, diopside, etc account for about two-thirds of the total and are not closely intergrown with scheelite or molybdenite, pre-discarding these magnetic gangue minerals by high intensity magnetic separation is available so as to simplify the cleaning process of tungsten as well as molybdenum.
出处
《中国钨业》
CAS
2013年第5期20-22,共3页
China Tungsten Industry
关键词
夕卡岩
钨钼伴生矿
工艺矿物学
skarn
tungsten-molybdenum ore
process mineralogy
