中南大学学报（自然科学版）2016，Vol.47Issue(11)：3621-3626,6.DOI:10.11817/j.issn.1672-7207.2016.11.001
强搅拌调浆对硫化镍矿浮选的作用
Effect of high intensity conditioning on flotation of nickel sulfide mineral
摘要
Abstract
The effect of high intensity conditioning before flotation on hydrophobic flocculation of sulfide minerals and its relationship with flotation of low-grade copper-nickel sulfide ore were investigated through microscopic image analysis and the flotation experiments of monomineral and actual ore. The relation curve of agitation time and flocculation size was obtained by image analysis software. The results show that the turbulence flow conditions generated by high intensity conditioning makes mineral particles collide and form hydrophobic flocculation, which leads to the increase of the surface wettability and better floatability. The flocculation sizes increase with the agitation time at the agitation speed of 1 000 r/min. High intensity conditioning before flotation improves the flotation rate of the single mineral pyrrhotite and copper-nickel sulfide minerals in low-grade copper-nickel sulfide ore. Hydrophobic flocculation of sulphide minerals is the main reason that high intensity conditioning improves the flotation recovery of low-grade sulfide ore.关键词
强搅拌调浆/硫化矿物/疏水聚团/浮选Key words
high intensity conditioning/sulfide minerals/hydrophobic flocculation/flotation分类
矿业与冶金引用本文复制引用
冯程,卢毅屏,冯其明,石晴..强搅拌调浆对硫化镍矿浮选的作用[J].中南大学学报（自然科学版）,2016,47(11):3621-3626,6.基金项目
国家重点基础研究发展计划(973计划)项目(2014CB643402)(Project(2014CB643402) supported by the National Basic Research Development Program (973 Program) of China) （973计划）
