湿法冶金2024，Vol.43Issue(2)：129-133,5.DOI:10.13355/j.cnki.sfyj.2024.02.003
硫酸铵焙烧活化—硫酸浸出粉煤灰提铝熟料的动力学研究
Kinetics of Aluminum Extraction Clinker from Fly Ash by Ammonium Sulfate Roasting Activation-Sulfuric Acid Leaching
摘要
Abstract
Aluminum was extracted from fly ash by(NH4)2SO4 roasting activation-sulfuric acid leaching method.The effects of liquid volume/solid mass ratio,reaction temperature,reaction time and sulfuric acid concentration on the leaching rate of aluminum were investigated.The kinetics of acid leaching process of clinker was studied.The results show that the leaching rate of aluminum is 84.64％under the conditions of liquid volume/solid mass ratio of 8/1,reaction temperature of 90 ℃,reaction time of 120 min and sulfuric acid concentration of 20％.The leaching kinetic formula is 1-(1-x)1/3=6.033 93e-22.045RT t,and the reaction activation energy is 22.045 4 kJ/mol.关键词
粉煤灰/硫酸铵/焙烧活化/酸浸/动力学Key words
fly ash/ammonium sulfate/roasting activation/acid leaching/dynamics分类
矿业与冶金引用本文复制引用
赵梓,赵爱春,刘宸嘉,王晔,高旭,张廷安..硫酸铵焙烧活化—硫酸浸出粉煤灰提铝熟料的动力学研究[J].湿法冶金,2024,43(2):129-133,5.基金项目
国家自然科学基金资助项目(U1710257) （U1710257）
山西省高等学校科技创新项目(2019L0656) （2019L0656）
太原科技大学博士启动基金资助项目(20142001) （20142001）
山西省基础研究计划资助项目(202103021224281) （202103021224281）
多金属共生矿生态冶金教育部重点实验室开放基金资助项目(2020003) （2020003）
太原科技大学研究生教育创新项目(SY2022012). （SY2022012）
