磁选法回收硼泥中的铁精矿  

Recovering Iron Concentrate from Boron Muds by Magnetic Separation

作　　者：马贺利[1] 张显鹏[2] 刘素兰[2] 

机构地区：[1]本溪冶金高等专科学校,辽宁本溪117022 [2]东北大学,辽宁沈阳110006

出　　处：《矿冶工程》1999年第3期37-38,共2页Mining and Metallurgical Engineering

摘　　要：通过改变碳碱法制硼砂工艺条件，即将含铁硼精矿焙烧气氛由空气改为ＣＯ 和ＣＯ２ 混合气，碳解气氛由石灰窑窑气改为纯ＣＯ２，可使硼泥中铁的磁选回收率由３４６ ％ 提高到７６２ ％ ～７９８ ％ 。硼泥排放量减少了２５５ ％ ～２５８ ％ 。By changing the technical conditions under which borax is produced by carbon alkali process, that is to say, changing the roasting atmosphere for iron bearing boron concentrate from air to the mixtur of CO and CO 2 and the carbon decomposing atmosphere from limekiln gas to pure CO 2, the iron recovery from boron mud can be increased from 34 6% to 76 2%～79 8% and the discharge of boron muds can be reduced by 25 5%～25 8%.

关 键 词：硼泥 磁选 铁精矿 焙烧 回收 

分 类 号：TD951.1[矿业工程—选矿]