Wada Yuji, Fujii Satoshi, Suzuki Eiichi, Maitani Masato M, Tsubaki Shuntaro, Chonan Satoshi, Fukui Miho, Inazu Naomi
Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1Ookyama, Meguro-ku, Tokyo, 152-8550 Japan.
Oricon Energy Inc., 6-8-10 Roppongi, Minato-ku, Tokyo, 106-0032 Japan.
Sci Rep. 2017 Apr 12;7:46512. doi: 10.1038/srep46512.
Magnesium (Mg) is a lightweight metal with applications in transportation and sustainable battery technologies, but its current production through ore reduction using the conventional Pidgeon process emits large amounts of CO and particulate matter (PM2.5). In this work, a novel Pidgeon process driven by microwaves has been developed to produce Mg metal with less energy consumption and no direct CO emission. An antenna structure consisting of dolomite as the Mg source and a ferrosilicon antenna as the reducing material was used to confine microwave energy emitted from a magnetron installed in a microwave oven to produce a practical amount of pure Mg metal. This microwave Pidgeon process with an antenna configuration made it possible to produce Mg with an energy consumption of 58.6 GJ/t, corresponding to a 68.6% reduction when compared to the conventional method.
镁（Mg）是一种轻质金属，在交通运输和可持续电池技术中均有应用，但其目前通过传统皮江法还原矿石来生产的过程会排放大量一氧化碳和颗粒物（PM2.5）。在这项工作中，已开发出一种由微波驱动的新型皮江法，以生产能耗更低且无直接一氧化碳排放的金属镁。采用一种由白云石作为镁源和硅铁天线作为还原材料组成的天线结构，将安装在微波炉中的磁控管发射的微波能量限制起来，从而生产出实际数量的纯金属镁。这种带有天线配置的微波皮江法能够以58.6吉焦/吨的能耗生产镁，与传统方法相比能耗降低了68.6%。
