我国氧化铝生产的能耗,拜耳法为842万千卡/吨(国外先进水平为300万千卡/吨);烧结法为1150万千卡/吨;联合法为860万千卡/吨(国外相近的串联法先进水平为600万千卡/吨)。尽管铝土矿类型和生产方法对能耗有一定影响,但从上述数字看,我国氧化铝生产的节能潜力还是很大的。下面对节能技术措施加以讨论。 China’s energy consumption of alumina production, Bayer Act 842 million kcal / ton (foreign advanced level of 300 million kcal / ton); sintering method of 11.5 million kcal / ton; joint law of 8.6 million kcal / ton Similar foreign advanced level of tandem method 6000000 kcal / ton). Although the type of bauxite and its production methods have an impact on energy consumption, the above figure shows that the potential for energy saving in alumina production in China is still considerable. The following energy-saving technical measures to be discussed.