Synthesis of TiCl_(2) powders through reactive gas phase infiltration in a fluidized bed reactor

作     者：Miao Song Yafeng Yang Hongdan Zhao Maoqiao Xiang Qingshan Zhu Jibin Jia Chaoquan Hu Fen Yue Miao Song;Yafeng Yang;Hongdan Zhao;Maoqiao Xiang;Qingshan Zhu;Jibin Jia;Chaoquan Hu;Fen Yue

作者机构：State Key Laboratory of Multiphase Complex SystemsInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China School of Chemical EngineeringUniversity of Chinese Academy of SciencesBeijing 100049China Innovation Academy for Green ManufactureChinese Academy of SciencesBeijing 100190China Nanjing IPE Institute of Green Manufacturing IndustryNanjing 211135China 

出 版 物：《Particuology》 (颗粒学报（英文版）)

年 卷 期：2021年第19卷第4期

页      面：95-103页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：This work was financially supported by the National Natural Science Foundation of China(21736010,11805227) the Bureau of Frontier Sciences and Education,Chinese Academy of Sciences(ZDBS-LY-JSC041) the Key Research Program of Nanjing IPE Institute of Green Manufacturing Industry(E0010708) the Innovation Academy for Green Manufacture,Chinese Academy of Sciences(IAGM-2019-A11) 

主　　题：Titanium dichloride Fluidization Kinetics Analysis 

摘      要：TiCl_(2) is a promising precursor for producing metallic titanium alloys and titanium-based ***,the effective synthesis of high-quality TiCl_(2) powder remains ***,a fluidized bed reactor(FBR)providing a high gas-solid contact area was employed to synthesize TiCl_(2) powder using a reliable TiCl_(4)-Ti reaction *** reaction conditions(600℃and 120 min)were determined for the proposed Ti-TiCl_(4) system by kinetic investigation.A dense Ti layer was regenerated upon the original surface of the Ti powder as a result of TiCl_(2) disproportionation at high temperature(above 700℃),which impeded infiltration by gaseous TiCl_(4).The particle size of the Ti reducing agent played a vital role in the production of TiCl_(2) powder.A mean particle size of 24.5μm was confirmed to be the most feasible option based on the optimal chlorinated depth(17μm).