多级串联复合流化床制备四氯化钛试验的基础研究  

Basic Research on the Experiment of TiCl_4 Preparation with Multistage Series Combined Fluidized Bed

作　　者：席亮[1,2] 熊绍锋[1,2] 谭强强[1] 袁章福[1] 

机构地区：[1]中国科学院过程工程研究所,北京100190 [2]中国科学院研究生院,北京100049

出　　处：《钛工业进展》2010年第2期16-19,共4页Titanium Industry Progress

基　　金：国家863项目(2008AA06Z107)

摘　　要：以镁钙质量分数大于2.5%的高钛渣为原料,采用复合流化床制备四氯化钛新工艺进行中试试验。对试验中氯气流量、流态化温度等参数进行了讨论,并对反应产物的形貌进行了分析,同时计算了反应效率。中试结果表明,TiO2的转化率达到90%。通过检测发现收尘渣表面富集MgCl2和CaCl2,而流化床中未出现粘结,说明该流化床具有一定的抗粘结能力。A new process of TiC14 preparation in a combined fluidized bed was researched on pilot plant scale. The titanium slag with high content of MgO and CaO （ 〉2. 5% ） was used as the feedback. Several experimental parameters such as chlorine flow, reaction tempera- ture were discussed and the morphology of reaction product was analyzed. The conversion of TiO2 was up to 90%. It is found that the anti- agglomeration ability of the combined fluidized bed is obvious because of the accumulation of MgCl2 and CaCl2 on the surface of unreacted slag which was carried out in the reactor.

关 键 词：复合流化床 四氯化钛 中试试验 抗粘结 

分 类 号：TF823[冶金工程—有色金属冶金]