磷矿浆脱硫新技术及工业应用  

Application of new desulfurization technique with phosphate ore slurry

作　　者：贾丽娟[1] 张冬冬[2] 殷在飞[2] 梅毅[2] 刘卉卉[2] 宁平[2] 

机构地区：[1]云南民族大学化学与环境学院,云南昆明650500 [2]昆明理工大学环境科学与工程学院,云南昆明650500

出　　处：《磷肥与复肥》2016年第3期39-41,共3页Phosphate & Compound Fertilizer

基　　金：国家自然科学基金51568067;西部典型行业环境污染控制协同创新中心开放基金;云南省教育厅科学研究基金2014Y279

摘　　要：由于SO2排放标准日趋严格,现有烟气脱硫技术已难以满足需求.开发了以磷矿浆为脱硫剂吸收硫酸尾气低浓度SO2的技术.实验结果表明,磷矿粉的硫容量是同体积NaOH饱和溶液的42倍、水的264倍,矿浆pH维持在4-6对吸收效果最有利,吸收饱和后矿浆澄清液中的RO5质量分数可达3.20％.该技术整个工艺无副产品产生,具有较好的环境效益,目前已实现了规模化产业应用.Due to the strictly standard on SO2 emission, the existing desulfurization technology has been difficult to meet the demand. A new recycling technology of low SO2 concentration with phosphate ore slurry as the desulfurizer to absorb low concentration SO： is developed. The results show： sulfur capacity of phosphate ore slurry is 42 times of saturated solution of NaOH, 264 times of water; The pH value of phosphate ore slurry keeps at 4-6 may have a best absorption effect; The mass fraction of P205 can achieve 3.20% in clarified liquid when the slurry absorbed saturation. This technique has good environmental benefit for no by-product, and has been applied to large-scale industrial production.

关 键 词：磷矿浆 脱硫 低浓度 效率 工业应用 硫酸尾气 

分 类 号：TQ126.35[化学工程—无机化工]