中國科学院長春綜合研究所礦冶研究室选鐵組的鞍山区贫赤铁礦浮選研究与中间试验工作,由於全體技術人員及工人同志三年來积极,堅持不懈的工作,已经胜利结束。這一浮选试驗工作的成功使含鐵祇有28％左右的贫赤鐵礦石可以提高到含鐵64％左右的精礦(在纯粹的赤鐵礦中含铁也祇有69.9％),鐵份回收率在84％以上。对我國重工業之母——鋼鐵工業的發展,這項工作是有重大意義的。我國铁礦有很多的贫鐵礦,這種貧鐵礦如果直接加 Changchun Institute of Mining and Metallurgy, Chinese Academy of Sciences Institute of Mining and Metallurgy, Anshan Iron-fade hematite flotation research and pilot work in the Anshan Iron and Steel Group, the successful conclusion of the three years of active and unswerving work of all technical staff and workers comrades. The success of this flotation experiment has raised the level of lean hematite ore, which is only about 28% of iron, to about 64% (about 69.9% iron in pure hematite), iron The recovery rate above 84%. This work is of great significance to the development of the steel industry, the mother of heavy industry in our country. China’s iron ore has a lot of iron-poor mine, this poor iron ore if added directly