某含铬海滨砂矿选矿试验研究  

Experimental Research on Beneficiation Technology of Chrome-Bearing Beach Placer

作　　者：廖乾[1] 张胜广[1] 张建文[1] 马崇振[1] 梁汉[1] LIAO Qian;ZHANG Shengguang;ZHANG Jianwen;MA Chongzhen;LIANG Han(Changsha Research Institute of Mining and Metallurgy Co.,Ltd.,Changsha 410012,Hunan,China)

机构地区：[1]长沙矿冶研究院有限责任公司,湖南长沙410012

出　　处：《矿冶工程》2025年第1期57-60,共4页Mining and Metallurgical Engineering

基　　金：中国五矿科技专项计划(2022ZXB01)。

摘　　要：对TiO_(2)品位3.33%、Cr_(2)O_(3)品位0.36%的某海滨砂矿进行了选矿试验研究。采用重选-弱磁选-中强磁选预处理和焙烧-干式磁选再处理成套选矿技术,可获得TiO_(2)品位47.72%、Cr_(2)O_(3)品位0.071%、TiO_(2)回收率64.76%的钛精矿产品,实现了提钛降铬、生产合格钛精矿的目标。A complete set of mineral processing technology was proposed for beneficiation tests of a beach placer with TiO_(2) grade of 3.33%and Cr_(2)O_(3) content of 0.36%.After a pre-concentration comprised of a gravity separation,a low intensity magnetic separation and a medium intensity magnetic separation,the rough concentrate was processed by roasting followed by dry magnetic separation,producing a titanium concentrate with TiO_(2) grade of 47.72%,Cr_(2)O_(3) grade of 0.071%and TiO_(2) recovery of 64.76%.It is concluded that the goal to prepare qualified titanium concentrate by extracting titanium and reducing chromium can therewith be achieved.

关 键 词：海滨砂矿 钛铁矿 铬铁矿 选矿 重选 磁选 焙烧 钛精矿 

分 类 号：TD92[矿业工程—选矿]