摘要
攀钢集团矿业公司采用“强磁+浮选”工艺解决了钛回收技术难题,但是对于-38μm粒级的钛铁矿回收率极低。为有效利用钛矿资源,进一步提高钛铁矿的回收率,探索了新型ZQS高梯度磁选机对超细粒级(-38μm)钛铁矿的回收效果,并对磁选精矿进行浮钛条件试验和全流程试验。结果表明:当新型ZQS高梯度磁选机在给矿TiO2品位11.47%,-38μm含量为88.89%时,经1次磁选得到的钛精矿TiO2品位可达到20.19%,TiO2回收率83.56%,其中-38μm的粒级回收率达到84.05%;磁选精矿脱硫后再进行1粗4精钛浮选试验,最终得到TiO2品位46.80%,浮选作业回收率61.53%,对原矿回收率51.41%的钛精矿。新型ZQS高梯度磁选机回收细粒级钛铁矿非常有效,特别是对-38μm超细粒级钛铁矿,磁选钛精矿TiO2品位和回收率均较高,为后续浮选提供了良好的给矿条件。
Panzhihua Group Mining Company adopt the“high gradient magnetic separation+flotation”to solve the technology issue of titanium recovery,the recovery of ilmenite below 38μm was extremely low.In order to effectively utilize ilmenite resources and further increase the recovery rate of ilmenite,the effect of new ZQS high gradient magnetic separator on the recovery of ultrafine grade(-38μm)ilmenite was explored,the flotation condition test and full process test of titanium were also carried out.The results showed that with feeding grade of TiO2 is 11.47%,-38μm fraction for 88.89%,via one stage magnetic separation conducted by new-type ZQS high gradient magnetic separator,magnetic concentrate with TiO2 grade of 20.19%,83.56%recovery was obtained,of which-38μm fraction grain recovery is 84.05%.The magnetic separation concentrate was subjected to flotation test.Ilmenite concentrate with TiO2 grade of 46.80%,and 61.53%flotation recovery was obtained,recovery to run-of-mine ore is 51.41%.ZQS high gradient magnetic separator is very effective in recovering finegrained ilmenite,especially for-38μm ultrafine-grained,which has high grade as well as high recovery in the concentrate.
作者
王丰雨
杨招君
罗荣飞
谭世国
袁祥奕
Wang Fengyu;Yang Zhaojun;Luo Rongfei;Tan Shiguo;Yuan Xiangyi(Guangdong Institute of Resources Comprehensive Utilization,Guangzhou 510651,China;State Key Laboratory of Separation and Comprehensive Utilization of Rare Metal,Guangzhou 510651,China;Guangzhou Yueyouyan Mineral Resources Technology Co.Ltd.,Guangzhou 510651,China;The Mining Co.Ltd.of Panzhihua Iron & Steel Group,Panzhihua 617000,China)
出处
《金属矿山》
CAS
北大核心
2019年第8期93-97,共5页
Metal Mine
