Generating a flotation reagent scheme for a complex base-metal sulphide ore using reagents that are commonly found in mineral processing can be a challenging, complex process. Ensuring that optimum operating conditions including particle size, pH, types of reagents, and dosages of reagents are found is critical in establishing a foundation for future research. A modified xanthate reagent scheme was chosen using potassium amyl xanthate (PAX) as the collector, methyl isobutyl carbinol (MIBC) as the frother, copper sulphate as activator, carboxy methyl cellulose (CMC) and zinc sulphate as depressants. The operating conditions that generated the highest recoveries and grades for copper and zinc were found using a grinding time of 3 min and a slightly acidic medium of pH 6 achieving maximum recoveries of 84.0% and 83.8% for chalcopyrite and sphalerite, and grades of 3.9 and 21.0, respectively. These results allow for comparisons to industrial results with ore of a similar composition while simultaneously providing a baseline in which to evaluate the results of future, innovative research.

中文翻译：

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使用改进的黄原酸盐试剂方案建立复杂贱金属硫化矿的优化浮选方案


使用矿物加工中常见的试剂为复杂的贱金属硫化物矿石制定浮选试剂方案可能是一个具有挑战性的复杂过程。确保找到最佳操作条件（包括粒径、pH、试剂类型和试剂剂量）对于为未来研究奠定基础至关重要。选择改进的黄原酸盐试剂方案，使用戊基黄原酸钾（PAX）作为捕收剂，甲基异丁基甲醇（MIBC）作为起泡剂，硫酸铜作为活化剂，羧甲基纤维素（CMC）和硫酸锌作为抑制剂。发现铜和锌产生最高回收率和品位的操作条件是使用 3 分钟研磨时间和 pH 6 的弱酸性介质，黄铜矿和闪锌矿的最大回收率分别为 84.0% 和 83.8%，品位分别为 3.9 和 3.9。分别为21.0。这些结果可以与具有相似成分的矿石的工业结果进行比较，同时提供评估未来创新研究结果的基线。