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湖南东湘桥锰矿石是供应上海宝钢炼钢、烧结所需原料的重要基地,由于本矿区矿石内锰结核约占30％,且含铁、硅高,属于难选锰铁氧化矿。 多年来不少科研单位及高等院校先后进行了研究,我院自1980年来又试验了焙烧—弱磁、焙烧—重选—弱磁、擦洗—分级—强磁、化学选矿(连二硫酸洗)等流程,进行多方案比较,虽可使原矿锰品位由25％提高到38％±,回收率80％,但由于经济效益问题,难于工业应用。 1983年经冶金部全国锰矿技术委员会评议,通过我院单一强磁选方案为最佳小试验
Hunan Dongxiangqiao manganese ore is an important base for supplying raw materials needed for Shanghai Baosteel for steel making and sintering. Since manganese ores in the ore area account for about 30% of the total, iron and silicon are high, it belongs to the refractory ferromanganese ore. Over the years many research institutes and universities have conducted a study, our hospital since 1980 to test the roasting - weak field, roasting - re-election - weak magnetic, scrub - grading - ferromagnetic, chemical beneficiation (dithionate ) And other processes for more programs, although the grade of manganese ore can be increased from 25% to 38% ±, the recovery rate of 80%, but due to economic benefits, difficult to industrial applications. In 1983 by the Ministry of Metallurgical National Manganese Technical Committee comments, through our strong single magnetic screening program for the best small test