论文部分内容阅读
一、适于浸出的铜矿石产状类型并非所有铜矿石都适用于堆浸。在进行浸出处理前,必须了解各种类型铜矿石对堆浸的适应性。由于硫酸或硫酸-硫酸铁是铜矿物的主要实用浸出剂,含大量耗酸矿物(例如碳酸钙和(或)碳酸镁)的矿石有时会消耗大量的酸,使浸出处理不经济。此外,许多矿石中的铜通常赋存在黄铜矿中,由于此种矿物铜的溶解速度慢,所以又为堆浸增添了不利因素。
First, the type of copper ore suitable for leaching Not all copper ores are suitable for heap leaching. Before leaching, it is important to understand the suitability of various types of copper ore for heap leaching. Since sulfuric acid or sulfuric acid-ferric sulfate is the main practical leaching agent for copper minerals, ores containing large amounts of acid-consuming minerals, such as calcium carbonate and / or magnesium carbonate, sometimes consume large amounts of acid, rendering the leaching process uneconomical. In addition, the copper in many ores is usually found in chalcopyrite, which adds unfavorable factors to heap leaching due to its slow dissolution rate.