摘要
高硫煤矸石因含有可燃硫物质常发生自然,造成很多环境问题。试验利用草分枝杆菌(Mycobacterium phlei)为生物浮选药剂,采用响应曲面法(RSM)探索其生物浮选规律,最终采用一次粗选二次精选工艺流程,获得的硫精矿产率为8.4%,回收率为84.1%,硫品位为33.64%,该精矿为合格硫精矿,获得的尾矿硫含量降为0.58%,低于1%的标准,可直接堆存或另觅途径加工利用。该方法绿色环保,实现了高硫煤矸石的资源化利用。
As the serious environmental pollution problem caused by the flammability of high-sulfur coal gangue, the experiments were carried out to recover pyrite with biological flotation agent （Mycobacterium phlei）. And the biological flotation effect was evaluated by response surface method （RSM）. The research results showed when the biological process of one roughing and two cleanings for the separating flotation of pyrite, the qualified concentrate with the productivity of 8.4%, the recovery of 84.1% and the grade of 33.64% was obtained. The grade of flotation tailings was 0.58% under the standard of 1%, which could be direct dumped or recycled. This environmental friendly method was showed that high-sulfur coal gangue resource utilization was feasible.
作者
程蓉
廖祥文
舒荣波
徐明
冀成庆
Cheng Rong;Liao Xiangwen;Shu Rongbo;Xu Ming;Ji Chengqing(Institute of Multipurpose Utilization of Mineral Resources,Chinese Academy of Geological Sciences,Research Center of Multipurpose Utilization of Metal Mineral Resources of China Geological Survey,Chengdu,Sichuan,Chin)
出处
《矿产综合利用》
CAS
北大核心
2018年第4期104-108,共5页
Multipurpose Utilization of Mineral Resources
基金
四川省科技支撑计划项目(2015JY0025)
关键词
高硫煤矸石
草分枝杆菌
生物浮选
黄铁矿
High-sulfur coal gangue
Mycobacterium phlei
Biological flotation
Pyrite
