Development and mechanism analysis of a highly efficient binder in pelletizing of ilmenite used in electric furnace  

作　　者：Feng Chen Yu-feng Guo Tao Jiang Shuai Wang Fu-qiang Zheng 

机构地区：[1]School of Minerals Processing and Bioengineering,Central South University,Changsha 410083,Hunan,China

出　　处：《Journal of Iron and Steel Research International》2018年第12期1232-1236,共5页

摘　　要：The development and mechanism of a highly efficient binder in pelletizing of ilmenite from Panzhihua,China,were investigated.It shows that both the drop strength of green pellets and compressive strength of dried pellets were improved when using the mixtures of starch,NaOH and sodium silicate as the adhesive.Adhesive film was formed on the surface of particles as the function of sodium silicate,promoting the filling of gelatinized starch between the adhesive films to bond the particle tightly.The drop strength of green pellet was 1.3 times/(pellet 700 mm),and the compressive strength of dried pellet of 250℃ was 1825 N/pellets when 0.5 wt%NaOH,1.0 wt% sodium silicate and 2.0 wt% starch were added as adhesive.

关 键 词：BINDER ILMENITE PELLETIZING ADHESIVE film GELATINIZATION 

分 类 号：TF[冶金工程]