针对某含碳金矿进行了深入的工艺矿物学分析，揭示了影响选矿效率的关键因素。通过选矿试验，成功降低了磨矿细度，并选择了一种高效的碳抑制剂，有效解决了有机碳对金浮选过程的干扰问题。在原矿金品位 1.84 g / t的条件下，通过实验室全流程闭路试验，获得了金精矿金品位 37.81 g / t、金回收率 91.20 %的优异指标。基于小型试验结果，进一步进行了工业试验，对磨矿细度、药剂制度等工艺参数进行了优化。试验结果表明：生产指标显著提升，金精矿金加权平均品位从 24.31 g / t提高至 40.25 g / t，金加权平均回收率从 88.02 %提高至 91.42 %。此外，磨矿细度的降低显著减少了生产成本。

An in⁃depth process mineralogical analysis of a carbonaceous gold ore was conducted, identifying keyfactors affecting beneficiation efficiency. With the beneficiation tests, the grinding fineness was successfully reduced,and an efficient carbon inhibitor was selected, effectively mitigating the interference of organic carbon in thegold flotation process. Under the condition of a raw ore gold grade of 1.84 g / t , the whole⁃process closed⁃circuit testachieved outstanding indices with a gold concentrate grade of 37.81 g / t and a gold recovery rate of 91.20 %. Based onthe small ⁃scale test results, industrial ⁃scale trials were conducted to optimize process parameters, including grindingfineness and reagent regime. The test results demonstrated significant improvements in production indices, with theweighted average gold grade in the concentrate increasing from 24.31 g / t to 40.25 g / t and the weighted averagegold recovery rate rising from 88.02 % to 91.42 %. Moreover, the reduction in grinding fineness substantially loweredproduction costs.