镁法脱硫产物亚硫酸镁氧化生成硫酸镁  

Oxidation of Magnesium Sulfite from Magnesium Desulfurization to Magnesium Sulfate

作　　者：林静雯[1] 吴国昊 牛晓巍[1] 秦浩 张带军 臧艺 LIN Jingwen;WU Guohao;NIU Xiaowei;QIN Hao;ZHANG Daijun;ZANG Yi(Key Laboratory of Regional Pollution and Ecological Restoration,Ministry of Education,Shenyang University,Shenyang 110044,China;Liaoning Wanyi Occupational Health Technology Consulting Co.,Ltd.,Shenyang 110015,China)

机构地区：[1]沈阳大学区域污染环境生态修复教育部重点实验室,辽宁沈阳110044 [2]辽宁万益职业卫生技术咨询有限公司,辽宁沈阳110015

出　　处：《沈阳大学学报（自然科学版）》2023年第4期279-286,共8页Journal of Shenyang University：Natural Science

基　　金：清华大学汽车安全与节能国家重点实验室开放基金资助项目(KF2027)。

摘　　要：进行了亚硫酸镁氧化生成硫酸镁催化体系的选择以及反应条件的研究。结果表明:二氧化锰协同紫外光照的催化体系下,亚硫酸镁氧化生成硫酸镁的氧化速率和转化率均为最大,氧化速率为70.1μmol·L^(-1)·s^(-1),是纯曝气氧化的5倍,转化率为47.09%,是纯曝气氧化的4.5倍。65℃时,二氧化锰的投加量为5.5 g·L-1,pH值为5,曝气量为2 L·min^(-1),搅拌速度为1250 r·min^(-1)时,亚硫酸镁生成硫酸镁的氧化速率及转化率达到最大,分别为90.7μmol·L^(-1)·s^(-1)和67.98%。The selection of catalytic system for the oxidation of magnesium sulfite to magnesium sulfate and the experimental study of reaction conditions were carried out.The results showed that the oxidation rate and conversion rate of magnesium sulfite oxidation to magnesium sulfate are the largest under the catalytic system of manganese dioxide with UV illumination,and the oxidation rate is 70.1μmol·L^(-1)·s^(-1),which is 5 times that of pure aeration oxidation,and the conversion rate is 47.09%,which is 4.5 times that of pure aeration oxidation.At 65℃,the dosage of manganese dioxide is 5.5 g·L-1,the pH is 5,aeration of 2 L·min^(-1)and stirring speed of 1250 r·min^(-1),the oxidation rate and conversion rate of magnesium sulfite to magnesium sulfate reach the maximum,which are 90.7μmol·L^(-1)·s^(-1)and 67.98%,respectively.

关 键 词：镁法脱硫产物 亚硫酸镁 硫酸镁 氧化 二氧化锰 紫外光照 

分 类 号：X701.3[环境科学与工程—环境工程]