关键词: 多金属硫化矿, 尼尔森选矿机, 粗颗粒金, 重选

Abstract: According to the characteristics of a polymetallic sulfide ore,Applicating nelson beneficiation equipment conducted a coarse gold pre-recovery technology test，and the whole process comparative test，whether the nelson beneficiation operation.The results showe that，the total recovery of gold  at 84.32%,based on nelson beneficiation technology of the whole process，nelson beneficiation technology 2.24% higher than those without，the recovery rate of gold concent at 28.19%，significantly decline 24.27% in Mixture of lead and zinc concentrates's gold recovery，to improve and create the conditions for final gold recovery.Use the nelson beneficiation operation，almost no effect to grade and recovery targets（except gold concent index）of copper concentrate，lead and zinc concentrate mixture，sulfur concentrate.