云南化工2023，Vol.50Issue(12)：21-24,4.DOI:10.3969/j.issn.1004-275X.2023.12.05
湿法磷酸渣酸作为低品位磷矿粉造球黏结剂的试验研究
Experimental Study on the Use of Residue Acid of Wet Phosphoric Acid as a Pellet Binder of Low Grade Phosphate Rock Powder
摘要
Abstract
A study was conducted on the use of wet process phosphoric acid slag as a pelletizing binder for phosphate rock powder.The influence of carbon content on the compressive strength and impact strength of pellets was investigated.The results show that as the carbon content of the pellets increases,the compressive strength and impact strength of the pellets gradually decrease.When coke is not added to the pellets,the strength is the highest,with an average pellet strength of 293.17 N and a crushing rate of 6.7%when dropped at 1.5 meters.As the reduction temperature and carbon content increase,the phosphorus reduction rate gradually increases.When the phosphorus ore∶coke =100∶25 and the reduction temperature is 1450℃,the phosphorus reduction rate reaches 96.5%.关键词
湿法磷酸/渣酸/磷矿/造球Key words
wet process phosphoric acid/slag acid/phosphate ore/pelletizing分类
化学化工引用本文复制引用
涂忠兵,姜威,何宾宾,牛司江,杨军,朱桂华,杨文娟,龚丽,高智城..湿法磷酸渣酸作为低品位磷矿粉造球黏结剂的试验研究[J].云南化工,2023,50(12):21-24,4.基金项目
国家重点研发计划项目子课题《渣-酸高值化协同化利用技术及工程示范》(2018YFC1900206-4)、云南省磷化工节能与新材料重点实验室(2019). （2018YFC1900206-4）
