十二烷基苯磺酸乳化液膜法净化湿法磷酸除镁  

Removal of Magnesium from Wet-Process Phosphoric Acid by Dodecylbenzene Sulfonic Acid Emulsion Liquid Membrane Technique

作　　者：杨帆[1] 胡方峰[1] 陈金芳[1] 

机构地区：[1]武汉工程大学化工与制药学院湖北省新型反应器与绿色化学工艺重点实验室,湖北武汉430073

出　　处：《云南化工》2008年第1期24-29,共6页Yunnan Chemical Technology

摘　　要：采用乳化液膜技术对湿法磷酸进行净化处理,针对磷酸-镁体系,选用带磺酸基团(-S03H)的十二烷基苯磺酸作为萃取剂,在其不同浓度下对pH=0.27的磷酸体系中的镁离子进行净化实验,得到了乳化时表面活性剂十二烷基苯磺酸的临界浓度。最佳实验条件:十二烷基苯磺酸在有机相中的临界浓度为摩尔分率10%,最佳油水体积比为1/3,最佳乳化转速为5400 r/min,最佳乳化时间45 s。Extraction of magnesium from phosphoric acid of pH 0.27 was studied by dodeeylbenzene sulfonic acid emulsion liquid membrane technique, and the critical concentration of dodecylbenzene sulfonic acid in emulsification was obtained. The 9Ptimal experiment condition was chosen as molar percentage of dodecylbenzene sulfonic acid of 10%, volume ration of oil to water of 1：3, emulsification rotate speed of 5400 r/min and emulsification time of 45 s.

关 键 词：十二烷基苯磺酸 湿法磷酸 镁离子 乳化液膜 

分 类 号：TQ126.35[化学工程—无机化工]