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首页> 外文会议>International Copper Hydrometallurgy Workshop >CONTROL OF IMPURITIES FOR COPPER ACID LEACHING SOLUTIONS. PART II: HOW TO PRODUCE SODIUM SULPHATE FROM HYDRATED DOUBLE SULPHATE ALUMINIUMPOTASSIUM SALT AND THE IMPACT IN THE HEAP LEACHING COPPER RECOVERY PROCESS
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CONTROL OF IMPURITIES FOR COPPER ACID LEACHING SOLUTIONS. PART II: HOW TO PRODUCE SODIUM SULPHATE FROM HYDRATED DOUBLE SULPHATE ALUMINIUMPOTASSIUM SALT AND THE IMPACT IN THE HEAP LEACHING COPPER RECOVERY PROCESS

机译：控制铜酸浸出液的杂质。第二部分：如何从水合双硫酸铝盐和堆浸出铜回收过程中产生硫酸钠

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SKM has a line of research for control of impurities in acid copper leaching solutions since two years ago. This line of research has been developed and several articles have been published. It is a second layer of information generated in order to solve the problem of Aluminium high concentration inside the Copper leaching solution (both, inorganic and bioleaching). On a first attempt a KCl salting out process was developed by Rivera et al. [1], but KCl has a high commercial price and the process, nevertheless technically feasible, could not be economically supported. The idea then was to find out another process in order to recover potassium and get it back in an infinite cicle once and again into the process. This paper is the second of a serie of three. On the first part it was shown the solubility of Al2K2(SO4)4*24H2O [2]. On this part, it is shown how NaCl is totally necessary in order to have a middle step with production of Na2SO4 and liberation of Cl- anion for later recovery of KCl. A third paper will finally show how KCl can be finally recovered, solving the problem of expensive supply, and the original problem, high aluminium concentration in copper leaching solutions.
机译：SKM自两年以前以来，有一系列酸性铜浸出解决方案中杂质的研究。这项研究线已经开发出来，几篇文章已发表。它是产生的第二层信息，以便解决铜浸出溶液内铝高浓度（两者，无机和生物浸出）的问题。在第一次尝试中，Rivera等人开发了KCL腌制过程。 [1]，但KCL具有高商业价格和过程，而且技术上可行，无法经济支持。然后，这个想法是找出另一个过程，以便恢复钾，并再次将其恢复在无限的内部。本文是三个三个的第二个。在第一部分上，它显示了Al 2K2（SO 4）4 * 24H2O [2]的溶解度。在这部分，显示NaCl是如何完全必要的，以便在培养Na 2 SO 4的中间步骤和用于后来恢复KCl的Cl-阴离子。第三篇纸将最终显示如何最终恢复KCL，解决昂贵的供应问题，以及铜浸出溶液中的原始问题，高铝浓度。

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