澳大利亚8月贸易顺差收窄至4.95亿澳元，远低于预期

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澳大利亚8月贸易顺差收窄至4.95亿澳元，远低于预期

2026年9月，采用中国科学院过程工程研究所技术的难选铁矿流态化磁化焙烧项目在辽宁鞍山通过竣工验收。该工程年处理规模达到556万吨，已经实现连续稳定运行。相关工艺通过改变矿物的物相与磁性，使原本难以分离的铁矿转变为更容易磁选的材料。

研究团队围绕细颗粒黏结、停留时间不均和热量回收等问题改进流化床技术，并开发配套加料、排料、预热与余热回收装备。公开运行结果显示，铁矿物相转化率达到98%，综合能耗约为每吨矿0.82吉焦。技术还可从铁含量仅11%的尾矿中得到铁品位约65%的精矿产品，提升存量资源的利用价值。这类工程的关键不只是完成一次化学转化，还要让大量颗粒在工业装置中持续、均匀地反应。项目达产为低品位资源开发提供了实际案例，但不同矿石的适配效果仍与矿物组成、颗粒性质和生产条件相关，需要具体评价。

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