湿法冶金2024，Vol.43Issue(5)：531-537,7.DOI:10.13355/j.cnki.sfyj.2024.05.008
废石化催化剂微波-超声波协同浸出工艺及动力学研究
Process and Kinetics of Microwave-Ultrasonic Assisted Leaching of Spent Petrochemical Catalyst
摘要
Abstract
The microwave-ultrasonic assisted leaching of V and Mo in spent petrochemical catalyst with sodium hydroxide was studied.The effects of various factors on the leaching were investigated.The kinetics of the leaching process was analyzed.The results show that under the conditions of no mechanical agitation,solid mass to liquid volume ratio of 0.20 g/1 mL,leaching temperature of 90 ℃,sodium hydroxide concentration of 2.0 mol/L,microwave power of 600 W,ultrasonic power of 300 W,and leaching time of 30 min,the leaching rates of V and Mo in the waste catalyst can reach 95.66％and 96.28％,respectively.The apparent activation energy of microwave-ultrasonic assisted leaching is 18.80 kJ/mol,which is significantly lower than that of atmospheric leaching.This is related to the fracture of chemical bonds caused by the high temperature and high pressure,which is achieved by the selective heating characteristics of microwave and the cavitation of ultrasonic.关键词
废石化催化剂/微波/超声波/协同浸出/钒/钼/动力学Key words
spent petrochemical catalyst/microwave/ultrasonic/assisted leaching/vanadium/molybdenum/kinetics分类
矿业与冶金引用本文复制引用
马致远,王东兴,饶帅,曹洪杨,刘志强..废石化催化剂微波-超声波协同浸出工艺及动力学研究[J].湿法冶金,2024,43(5):531-537,7.基金项目
国家自然科学基金资助项目(52304365,52104395) （52304365,52104395）
广东省自然科学基金资助项目(2023A1515011847) （2023A1515011847）
广东省科学院发展专项资金资助项目(2020GDASYL-20200504001-005,2022GDASZH-2022010104,2023GDASZH-2023010104). （2020GDASYL-20200504001-005,2022GDASZH-2022010104,2023GDASZH-2023010104）
