Several Technical methods of restraining the preheating surface of diasporic bauxite slurry from scaling

摘要：

The paper deals with the influences of lime adding amount, preheating surface temperature and adding desilication seeds to slurry on scaling on preheating surface of diasporic bauxite slurry in Bayer process. Several technical methods of decreasing and restraining the preheating surface of diasporic bauxite slurry from scaling were proposed. The scaling rate can be slowed down to a certain extent by selecting appropriate adding amount of lime according to the composition of bauxite, decreasing the temperature of preheating surface as lower as possible and adding suitable desilication seed to the slurry. For example, using steam instead of molten salt as the heating media, is beneficial to slow down the general scaling rate.

关键词： diasporic bauxite Bayer process scaling, lime preheating surface technical method

作者: Yin Zhonglin

作者单位: Zhengzhou Research Institute of CHALCO, Zhengzhou, Henan 450041, China

会议类型: 国际会议

会议名称: XVIII International Symposium of ICSOBA(第18届国际铝土矿、氧化铝及铝工业学术年会)

会议地点: 郑州

会议语种:英文

页码: 252-260

在线出版日期: 2010-11-25（万方平台首次上网日期，不代表论文的发表时间）