Influence of flux additives on iron ore oxidized pellets

作     者：范晓慧 甘敏 姜涛 袁礼顺 陈许玲 

作者机构：School of Resources Processing and BioengineeringCentral South University 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2010年第17卷第4期

页      面：732-737页

核心收录：

学科分类：0709[理学-地质学] 070901[理学-矿物学、岩石学、矿床学] 07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：Project(2008BAB32B06) supported by the Key Projects in the National Science and Technology Pillar Program during the 11th Five-year Plan Period Project(2009ybfz20) supported by the Program for Excellent Doctor’s Degree Paper in Central South University,China Project(1343/74333001114) supported by the Postgraduate’s Paper Innovation Fund of Hunan Province,China 

主　　题：iron ore additives oxidized pellets compressive strength 

摘      要：Six additives,i.e.,limestone,lime,magnesite,magnesia,dolomite and light-burned-dolomite,were added for investigating their influences on the pellet *** green balls,adding lime and light-burned-dolomite makes the wet drop strength decrease firstly,and then increase with further increase of additive ***(OH)2 affects the bentonite properties at the beginning,but the binding property of Ca(OH)2 will be main when the dosage is *** other four additives decrease the drop strength for their disadvantageous physical *** preheated pellets,no mater what kind of additive is added,the compressive strength will be decreased because of unmineralized *** roasted pellets,calcium additives can form binding phase of calcium-ferrite,and suitable liquid phase will improve recrystallization of hematite,but excessive liquid will destroy the structure of pellets,so the compressive strength of pellet increases firstly and then *** adding magnesium additives,the strength will be decreased because of the oxidation of magnetite retarded by MgO.