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首页> 外文会议>32nd Annual Hydrometallurgy Meeting and International Conference on the Practice and Theory of Chloride/Metal Interaction, Vol.2, Oct 19-23, 2002, Montreal, Quebec, Canada >Intec Base Metal Processes Realising the Potential of Chloride Hydrometallurgy
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Intec Base Metal Processes Realising the Potential of Chloride Hydrometallurgy

机译：Intec贱金属工艺实现了氯化物湿法冶金的潜力

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摘要

The application of chloride hydrometallurgy to the treatment of base metal sulphide concentrates and its inherent advantages has been well documented for over a century. The chloride/bromide based Intec Copper Process and Intec Zinc Process offer a unique approach to such treatment, central to which is the ability to generate the powerful oxidant, BrCl_2~- at the anode. The benefits of this approach are evident in all process stages and are wide ranging, to offer superior, low cost and sustainable production of high purity metal. In the leaching stage, high metal extractions that include precious metals are achieved under the mild conditions of 85℃ and atmospheric pressure in the one circuit. Oxygen input through air injection and minimal sulphur oxidation to sulphate combine to result in the lowest energy consumption during leaching when compared to equivalent hydrometallurgical processes. In the purification of the pregnant liquor solution, the Intec Processes use low cost cementation and precipitation through alkali addition. In comparison, all other hydrometallurgical processes use solvent extraction, which is burdened by onerous costs and complicated operations. In the electrowinning stage, the Intec Processes benefit from their ability to generate soluble BrCl_2~- at the anode rather than oxygen.
机译：氯化湿法冶金在贱金属硫化物精矿的处理中的应用及其固有优势已有一个多世纪的历史了。基于氯化物/溴化物的Intec铜工艺和Intec锌工艺为这种处理提供了一种独特的方法，其核心是在阳极处产生强氧化剂BrCl_2〜-的能力。这种方法的优势在所有工艺阶段均显而易见，而且范围广泛，可提供优质，低成本和可持续的高纯度金属生产。在浸出阶段，在一个回路中，在85℃和大气压的温和条件下，可以实现包括贵金属在内的高金属提取。与同等的湿法冶金工艺相比，通过空气注入的氧气输入和最少的硫氧化生成硫酸盐相结合，可在浸出过程中实现最低的能耗。在母液溶液的纯化中，Intec工艺使用低成本的胶结和通过添加碱进行沉淀。相比之下，所有其他湿法冶金工艺都使用溶剂萃取，这要付出沉重的成本和复杂的操作。在电解沉积阶段，Intec工艺得益于其在阳极而非氧气中生成可溶性BrCl_2〜-的能力。

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