Role of Crystal Seed in Aluminum Hydroxide Crystallization from Ammonia System with Added NH_(4)Al(SO_(4))_(2)·12H_(2)O

作     者：王俊凯 李来时 LIU Feng WANG Yuzheng 吴玉胜 WANG Junkai;LI Laishi;LIU Feng;WANG Yuzheng;WU Yusheng

作者机构：School of Material Science and EngineeringShenyang University of TechnologyShenyang 110870China 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2024年第39卷第4期

页      面：945-953页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：Funded by the National Natural Science Foundation of China(No.51974188) the Liaoning Revitalization Talents Program(No.XLYC2008014) 

主　　题：reactive crystallization coarse-grained Al(OH)_(3) crystal seed crystal growth process 

摘      要：A method to promote aluminum hydroxide crystal growth through pickling Al(OH)_(3)as seed in the ammonia system was proposed to overcome these *** experimental results show that,under the conditions of pickling time of 15 min,the acid concentration of 10%,the addition of 70 g/L pickling-Al(OH)_(3)seed,and the coarse granular Al(OH)_(3)products(d0.5=85.667)can be *** characterization results show that the phase of the product is gibbsite,consistent with the ***,the steps and ledges can be formed on pickling Al(OH)_(3)seed surface under the ammonia system,effectively promoting crystal *** crystal growth,the roughness of the crystal surface was first increased and then decreased,and the lamellar structure was deposited on the crystal seed *** final particles are approximately round,the surface is compact and *** growth of the product is surface reaction *** addition,the content of the AlO_(6)unit is increased and contributed to Al(OH)_(3)crystal growth.