Modern smelting technology and its impact on alumina requirements
Divergence in property requirements of smelter grade alumina first occurred with the advent of dry scrubbing technology in the early 1970s and then changed again with the adaption of modern process control and point feeder technology in the late 1970s. Then emphasis needed to be placed on the solubility of the alumina, while at the same time ensure the properties were adequate for capture of gaseous fluoride emissions. More recently the pace of change in cell design and operating echnology has introduced new demands on alumina properties. This is especially so for alumina solubility, where more consistent flow and handling properties are necessary as well as even faster dissolution rates being required. Compounding this is change in alumina transport methodology, making segregation and variability a greater problem. In the past attempts between alumina refineries and smelters to work towards a common goal has been of limited success yet the success of both industries is crucial to each other. Accordingly there are changed requirements for the alumina and these are discussed and presented as future challenges.
Barry Welch AliH.A.M.Al Zarouni Stephen J. Lindsay
University of New South Wales Australia, and University of Auckland New Zealand V.P. Dubai aluminium Company Limited, UAE Alcoa-Global PrimaryMetals, USA
国际会议
XVIII International Symposium of ICSOBA(第18届国际铝土矿、氧化铝及铝工业学术年会)
郑州
英文
482-489
2010-11-25（万方平台首次上网日期，不代表论文的发表时间）