Evaluation of Copper Leaching for Subsequent Recovery from the Waste Dumps of the Linares Mining District and Their Use for Construction Materials

The development of the population’s well-being involves use different raw materials. However, metallic elements such as copper are currently scarce due to their intensive in sectors. Therefore, new sources materials that provide these elements, lower cost, and waste for extraction must be sought. For this reason, research, dumps mining district Linares (Spain) studied evaluate existence recoverable by hydrometallurgical techniques. material from dump selected potentially viable is leached with sulfuric acid solutions (0.25, 0.5, 1, 2 mol) at times, obtaining concentrations usable subsequent processes. In addition, order develop an environmental hydrometallurgy, leach characterized, bituminous mixtures made it. results present investigation showed it was possible recover 80% 1 mol acid. At same time, leaching process found suitable aggregate mixtures. were conformed, obtained optimum percentage emulsion 6.95% proposed granulometry. This percentage, which corresponds a residual bitumen 4.17%, particle loss test 14% 18% after immersion. stability values Marshall above-mentioned 8.99 KN. fact demonstrates quality mixture Consequently, can affirmed investigation, significant has been extracted processing used mixtures, there being closed cycle no produced.