Preparation of H2TiO3–lithium adsorbent using low-grade titanium slag》.pdfVIP

Hydrometallurgy 157 (2015) 90–96 Contents lists available at ScienceDirect Hydrometallurgy journal homepage: www. /locate/hydromet Preparation of H TiO –lithium adsorbent using low-grade titanium slag 2 3 Dahai Tang a, Dali Zhou a,⁎, Jiabei Zhou a, Ping Zhang a, Liyuan Zhang a, Yi Xia a,b a College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China b Research Center for Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093, China a r t i c l e i n f o a b s t r a c t Article history: H TiO –lithium adsorbent was obtained from the acid-modified precursor Li TiO , which was synthesized via the 2 3 2 3 Received 8 March 2015 solid-phase reaction between LiOH·H2O and a Ti-rich material. The Ti-rich material containing 88.35% TiO2 was Received in revised form 16 July 2015 prepared from low-grade titanium slag via an upgrading process primarily involving alkaline roasting and acid Accepted 17 July 2015 leaching-hydrolysis. The parameters for the synthesis and acid treatment of the Li2TiO3 precursor were Available online 30 July 2015 investigated. It was observed that monoclinic β-Li2TiO3 with good crystallization could be synthesized at Keywords: