Core Insights - The successful delivery of domestically produced enriched boric acid for nuclear use marks a significant breakthrough in China's nuclear supply chain, ensuring self-sufficiency in critical nuclear materials [1][2] - Enriched boric acid, essential for nuclear safety, has been developed to enhance neutron absorption in pressurized water reactor cores, addressing supply chain security concerns due to previous reliance on imports [1][2] Group 1: Development and Innovation - The project for the domestic production of enriched boric acid was initiated in 2022 by Suzhou Institute of Thermal Power, collaborating with Shandong Heyi Gas Co., among others, to innovate production processes [2] - The research team overcame traditional production challenges, achieving over 20% improvement in boron isotope separation efficiency and reducing impurity content by more than 50% [2] Group 2: Industry Impact - The large-scale delivery of enriched boric acid signifies China's capability to ensure stable supply, reliable quality, and reasonable pricing in the enriched boric acid sector, bolstering the nuclear power industry's supply chain security [2]

为攻克技术壁垒，苏州热工院自2022年起牵头开展"核电站一回路用富集硼酸国产化研发"项目，联合国 内山东合益气体股份有限公司等化工企业开展工艺创新与产业转化。研发团队攻克了传统生产方法中工 序繁、能耗高、废料多等问题，创新采用新型络合剂分离技术及全物料循环利用合成技术，通过近百次 模拟实验与工艺优化，最终实现硼同位素分离效率提升20%以上，杂质含量降低超50%，产品同位素丰 度控制偏差小于1%，产品质量达到国际先进水平。 这是继2024年11月在阳江核电3号机组、防城港核电4号机组运行期间小批量示范应用后，富集硼酸国产 化的又一次重大突破。向新建"华龙一号"机组的规模化供货，标志着国产核用富集硼酸供应链已实现自 主可控，我国在关键核用化学材料研制领域又迈出坚实一步。 据中广核有关负责人介绍，富集硼酸是通过同位素分离技术将硼-10丰度由天然不足20%提升到96%以上 的特殊化工产品，在核电站中扮演"智能刹车"角色，主要用于吸收压水堆核电站反应堆堆芯产生的部分 中子，通过化学方式补充控制堆芯的链式反应，是保障核安全不可或缺的"镇定剂"。由于其生产工艺复 杂、质量标准严苛，此前我国长期依赖进口，随着核电建设规模的不 ...