【汉中】“吃”进废渣吐出“宝”

Core Viewpoint - The Hanzhong Zinc Industry's "6+N" waste slag indium resource comprehensive utilization demonstration project is set to transform waste into valuable metals, specifically indium, through a series of advanced processes, contributing to the circular economy and green development goals in the region [1][3][5]. Group 1: Project Overview - The "6+N" project is currently under construction in Mian County and is expected to be completed by June 30, 2025, with an annual production capacity of 30 tons of refined indium [2][3]. - The project involves six key processes: indium enrichment, leaching, extraction, back-extraction, electrolysis, and smelting, aimed at maximizing the recovery of indium from zinc smelting waste [3][4]. Group 2: Strategic Importance - Indium is a scarce metal with excellent conductivity, corrosion resistance, and ductility, widely used in aerospace, electronics, and renewable energy sectors, highlighting its strategic value [3]. - The project aligns with the goals set by the Shaanxi Provincial Party Committee to achieve breakthroughs in green and low-carbon development, contributing to the establishment of a modern industrial system in Hanzhong [4]. Group 3: Economic Impact - The project is expected to enhance the comprehensive recovery capacity of indium metal and support the development of a billion-level modern materials industry cluster in Hanzhong [5]. - It aims to promote the transformation of the non-ferrous metallurgy industry in Mian County towards high-end, intelligent, and green development [5].