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首页> 外文会议>International Conference on Industrial Engineering and Engineering Management >The Critical Influence of Pulp Oxygen Content on the Separation of Pentlandite from Pyrrhotite in Two Process Streams of the Clarabelle Mill of VALE INCO, Sudbury, Canada
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The Critical Influence of Pulp Oxygen Content on the Separation of Pentlandite from Pyrrhotite in Two Process Streams of the Clarabelle Mill of VALE INCO, Sudbury, Canada

机译：纸浆氧含量对萨尔河米尔·米尔·米勒，加拿大萨尔德·米尔·米尔博物馆的两次工艺流分离的临界对Pentlandite

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This paper focuses on the influence of pulp oxygen content on the separation of pentlandite and pyrrhotite contained in two different process streams in the Clarabelle Mill, operated by VALE INCO. The two process streams are (ⅰ) the scavenger cleaner feed, the product of regrinding the thickened, scavenged concentrate and the B cleaned tail produced from treating the non-magnetic fraction of the milled run of mine ore, and (ⅱ) the magnetic concentrate which is the magnetic fraction of the milled run of mine ore. In the Clarabelle Mill, sulphite (SO32-) and TETA (triethylenetetramine) are together used to selectively depress pyrrhotite from pentlandite. These depressants preferentially decompose collector and/or sulphur enriched species at the pyrrhotite surface, an apparently essential mechanism in pyrrhotite depression from the scavenger cleaner feed stream. Selectivity in depression may originate from differences in the electrochemical rest potential of pyrrhotite and pentlandite. As both minerals are susceptible to oxidation, aeration in conditioning and flotation plays a key role in selective flotation. Important differences in the flotation behavior of pentlandite and pyrrhotite from the magnetic concentrate and the scavenger cleaner streams are highlighted in this work and several diagnostic tools were applied to diagnose the origin for these differences.
机译：本文重点研究的上镍黄铁矿的分离纸浆的氧含量的影响，磁黄铁矿包含在两个不同过程中Clarabelle轧机，由INCO VALE操作流。两个处理流是（ⅰ）的清除剂清洁器进料，再研磨增稠，清除浓缩物和从处理矿的研磨的游程的非磁性级分中产生的乙清洗尾矿的产品，和（ⅱ）的磁浓缩物这是研磨运行的磁性部分的矿石。在Clarabelle轧机，亚硫酸盐（SO32-）和TETA（三亚乙基四胺）一起使用，以从镍黄铁矿选择性地压低磁黄铁矿。这些抑制剂优先分解收集器和/或硫的磁黄铁矿表面富集种类，在从清洁器清除剂进料流的磁黄铁矿抑郁一个显然是必要的机构。选择性抑郁症可能与磁黄铁矿和镍黄铁矿的电化学其余电位差起源。由于这两种矿物质易于氧化，曝气机和浮选起着选择性浮选了关键作用。从磁精矿镍黄铁矿和磁黄铁矿和净化剂清洁流的浮选行为的重要区别是强调了这项工作，一些诊断工具，分别适用于诊断这些差异的根源。

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