我国稀散金属开发利用取得一系列重大突破

Core Insights - China's breakthroughs in the efficient extraction of rare metals such as gallium, germanium, and indium are crucial for high-tech development [1][2] - The recovery rates of these metals from various mining processes have significantly improved, enhancing the overall production efficiency [1] Group 1: Extraction Technology Advancements - The comprehensive recovery rate of germanium from coal has increased from 55% to over 80% [1] - The average recovery rates of gallium, germanium, and indium during lead-zinc smelting processes have improved by approximately 10% [1] - The recovery rates of selenium, tellurium, and rhenium during copper smelting have risen to 97%, 90%, and 80% respectively [1] Group 2: Equipment and Product Development - China has developed five core pieces of equipment, including a temperature gradient condensation directional crystallizer, enabling stable mass production of 8N-grade high-purity gallium [1] - The first domestically produced planar high-purity germanium detector has been developed, filling a domestic gap [1] - Production lines for ultra-high-purity germanium and other high-end raw materials have been established, marking a transition from primary to high-end products [1] Group 3: Strategic Importance - Rare metals like gallium, germanium, and indium are essential for strategic emerging industries, future industries, and national defense, playing a critical role in enhancing supply chain resilience and security [2] - The advancements in extraction and production capabilities help mitigate reliance on foreign high-end materials and products [2] - The self-sufficiency rate for key strategic metal products has increased to over 70%, supporting sectors such as defense, new energy, 5G communications, and semiconductors [1]