前言 作者曾于1983年～1985年作为教育部派出的访问学者赴日本研修。在东京大学工学部金属工学科冶金反应工学研究室对包头白云鄂博矿的还原膨胀问题进行了研究。后于1986年7月至10月又赴日本神户制钢所中央技术研究所(现为技术开发本部材料研究所)炼铁研究室继续就“碱金属对球团矿的还原 Preface The author went to Japan to study as a visiting scholar sent from the Ministry of Education from 1983 to 1985. The reduction and expansion of Baotou Bayan Obo Mine was studied at the Metallurgical Reaction Engineering Laboratory, Department of Metalworking, Faculty of Engineering, University of Tokyo. Later in July 1986 to October and went to Japan’s Kobe Steel Institute of Central Technology (now the technology development headquarters of the Institute of Materials) ironmaking research continued on the "reduction of alkali metal pellets