Na2CO3对微波联合盐酸法制备金红石的强化作用  

Strengthening effect of Na2CO3 on preparation of rutile by microwave combined with hydrochloric acid

作　　者：康娟雪 张铭媛 普婧 高磊 段利平[1,2] 陈菓[1,2,3] Kang Juanxue;Zhang Mingyuan;Pu Jjing;Gao Lei;Duan Liping;Chen Guo(Key Laboratory of Green-Chemistry Materials in University of Yunnan Province,Yunan Minzu University,Kunming 650500,China;Joint Research Center for International Cross-Border Ethnic Regions Biomass Clean Utilization in Yunnan,Yunnan Minzu University,Kunming 650500,China;Key Laboratory of Unconwentional Metallurgy under Ministry of Education,Kunming University of Science and Technology,Kunming 650093,China)

机构地区：[1]云南民族大学,云南省高校绿色化学材料重点实验室,云南昆明650500 [2]云南民族大学,云南省跨境民族地区生物质资源清洁利用国际联合研究中心,云南昆明650500 [3]昆明理工大学,非常规冶金教育部重点实验室,云南昆明650093

出　　处：《轻金属》2020年第6期42-46,51,共6页Light Metals

基　　金：国家自然科学资金项目(编号:51504110);中国博士后科学基金(编号:2017M623012);云南省高校科技创新团队支持计划资助。

摘　　要：本文以攀枝花钛渣为实验研究对象,研究了Na2CO3预处理对微波联合盐酸法制备金红石型TiO2的影响。对比了不同质量比Na2CO3预处理和未预处理直接盐酸浸出的最终产物,发现碳酸钠与钛渣质量比为0.4时,得到含量为93.75%的金红石型TiO2,且TFe、SiO2、Al2O3、MgO和CaO的含量分别为0.561%、3.513%、1.829%、0.031%和0.316%。由XRD和SEM分析可知,经过Na2CO3预处理后,煅烧渣中均出现了金红石型TiO2的标志特征,Na2CO3可以破坏钛渣的结构,为盐酸浸出提供有效的强化手段。With Panzhihua titanium slag as the research subject,the effect of Na2CO3 pretreatment on the preparation of rutile-type TiO2 by microwave combined with hydrochloric acid was studied in this paper.The final products of Na2CO3 pretreatment with different mass ratios and direct hydrochloric acid leaching without pretreatment were compared.It was found that when the mass ratio of sodium carbonate to titanium slag was 0.4,the rutile-type TiO2 with 93.75%content was obtained.The contents of TFe,Si02,Al2O3,MgO and CaO were 0.561%,3.513%,1.829%,0.031%and 0.316%,respectively.XRD and SEM analysis showed that symbolic characteristics of rutile-type TiO2 appeared in calcined slag afer pretreatment with Na2C03.Na2CO3 could destroy the structure of titanium slag and provide an effective strengthening means for hydrochloric acid leaching.

关 键 词：NA2CO3 酸溶性钛渣 金红石型TIO2 盐酸法 微波 

分 类 号：TF823[冶金工程—有色金属冶金]