摘要
将氧化锌和铝酸钡混合研磨后作为复合脱硫剂,在优化溶出工艺基础上,考察矿石硫含量、脱硫剂配比及添加量对氧化铝与硫溶出率的影响。结果表明,硫溶出率随矿石中硫含量增加而显著增加,复合脱硫剂有利于提高氧化铝的溶出效果;氧化锌起到主要脱硫作用,而铝酸钡起到脱碳的作用,脱硫效果不明显。对于硫含量为1.1%的矿石,添加10%理论量的氧化锌时,硫溶出率从原矿的18.4%降低为11.15%,同时添加100%理论量的铝酸钡,硫的溶出率仅降低到9.71%;当添加理论量14%氧化锌和40%铝酸钡时,硫溶出率可降至9.65%。
Zinc oxide and barium aluminate are mixed and grinded as complex desulfurizer.Effects of ore sulfur content,ratio and dosage of desulfurizer on digestion rate of sulfur and alumina of high sulfur bauxite ore were investigated based on optimization digestion process.The results show that digestion rate of sulfur rises with increase of sulfur content in ore.Composite desulfurizer is beneficial to improve digestion effect of zinc oxide.Zinc oxide plays a major role in desulfurization,while barium aluminate acts as decarburization with poor desulfurization effect.For the ore with sulfur content of 1.1%,when 10%of theoretical amount of zinc oxide is added,digestion rate of sulfur drops from 18.4% to 11.15%,and digestion rate of sulfur drops only to 9.71% with addition of 100% of theoretical amount of barium aluminate.Sulfur digestion rate drops to 9.65% with addition of 14% of theoretical amount of zinc oxide and 40% of barium aluminate.
作者
徐颖鹏
李军旗
陈朝轶
兰苑培
刘龙
XU Ying-peng;LI Jun-qi;CHEN Chao-yi;LAN Yuan-pei;LIU Long(School of Material and Metallurgy,Guizhou University,Guiyang 550025,China)
出处
《有色金属（冶炼部分）》
CAS
北大核心
2018年第12期8-12,共5页
Nonferrous Metals（Extractive Metallurgy)
基金
国家自然科学基金资助项目(51774102
51474079)
贵州省人才项目(黔科合[2015]4005
[2017]5788
[2017]5626号
黔教合KY[2015]334号)
关键词
高硫铝土矿
复合脱硫剂
溶出
脱硫
铝酸钡
氧化锌
high-sulfur bauxite
complex desulfurizer
digestion
desulfurization
barium aluminate
zinc oxide
