在决定纯度的核心装备方面，北京化工大学传质与分离工程研究中心李群生团队取得了关键进展。"我 国高纯、超高纯化学品需求量大且增长快，但高端化、超高纯化学品自给率不足10%，进口依存度高达 90%以上。"该中心高级工程师廖明昆介绍说，为杜绝生产设备本身对产品的污染，团队研发了"高强贴 附"特殊材料真空衬里技术。该技术通过研究器壁上金属离子和颗粒物溶解脱除的机理，开发设备内壁 超精细打磨新技术，将轧制过程在表面形成的颗粒物和结晶物清除，避免金属离子和固体颗粒物脱落。 同时，特制无纺布内外着胶和特殊板衬材料，可避免衬层不牢或脱落，阻止金属离子和固体颗粒物等杂 质渗入，防止金属离子渗入及衬层脱落，实现了最高级别的G5级湿电子化学品生产。该技术已应用于 河南某企业生产出G5级氢氟酸、硫酸等系列湿电子化学品，金属离子铁、镁、钙等含量不超过5ppt，打 破了国外技术封锁。 结构性失衡问题凸显 中国科学院上海有机化学研究所研究员、福建雅鑫电子化学品研究院院长吴永明指出，我国湿电子化学 品产业整体呈现结构性不均衡问题。在光伏太阳能电池领域，国内企业已基本实现相关湿电子化学品自 主供应。然而，在技术要求更高的集成电路和新型显示面板 ...

Core Insights - The wet electronic chemicals industry in China has made significant progress in the mid-to-low end market, but still faces challenges in high-end technology, necessitating innovation and supply chain collaboration for domestic product replacement [1] - Current domestic production rates vary across sectors: approximately 50% in semiconductors, 55% in new displays, and nearly full localization in photovoltaics [1] - The global semiconductor industry's recovery in 2024 is expected to drive demand for electronic wet chemicals, although there remains a gap in customized and high-end functional chemicals compared to international standards [1] Industry Developments - Research teams from domestic institutions are actively seeking breakthroughs in purification technologies for wet electronic chemicals, which are essential for meeting the increasing purity and performance requirements due to advancements in chip manufacturing processes [2] - The Chinese Academy of Sciences has made progress in developing purification technologies for electronic-grade solvents, including a multi-site basic functional ionic liquid catalyst for G4/G5 grade photoresist solvents [2] - New technologies, such as high-efficiency impurity penetration resistance, have been developed and successfully applied in producing high-grade wet electronic chemicals, significantly improving product quality [2]