泥沉降用新型聚丙烯酸盐絮凝剂的发展  

Development of new polyacrylate flocculants for red mud clarification

作　　者：Everett C.Phillips Kevin L.O'Brien W.Diehl Rd. 武国宝(译) Everett C.Phillips;Kevin L.O'Brien;W.Diehl Rd.;Wu Guobao(Zhengzhou Non-ferrous Metals Research Institute Co.Ltd of CHALCO,Zhengzhou 450041)

机构地区：[1]中铝郑州有色金属研究院有限公司,河南郑州450041

出　　处：《铝镁通讯》2021年第1期15-19,共5页

摘　　要：传统型聚丙烯酸盐类絮凝剂在拜耳法赤泥沉降工序应用已有20多年。如今,研究者已成功开发了一种能生产更大分子量絮凝剂的新工艺,这些絮凝剂的分子量比现有絮凝剂的分子量大20%或更多。由于新型聚丙烯酸盐类絮凝剂技术的开发应用,使得氧化铝厂对絮凝削的用量减少。本文总结了新型聚丙烯盐类絮凝剂实验室研究结果及在氧化铝厂工业试验情况。目前,这类新型絮凝則的其他优点还处于研究之中。Conventional polyacrylate floc;culants have been widely used to settle red mud in the Bayer process over the past two decades.A new manufacturing process has led to the development of higher molecular weight polyacrylate flocculants that outperform existing polyacrylate flocculants by 20% or more.Implementation of the new polyacrylate flocculant technology has allowed plants to reduce overall consumption of flocculant.Laboratory test results and plant applications of these new flocculants at several refineries are summarized in this paper.Additional benefits of these new flocculants are currently under investigation.

关 键 词：新型聚丙烯酸盐絮凝别 赤泥沉降 

分 类 号：X70[环境科学与工程—环境工程]