在烧结法生产氧化铝中,由原料铝土矿带入的氟,于熟料中的含量约为0.1％左右。当添加氟化物,如氟化钙等,进行烧结时,可降低熟料的烧成温度。但添加量在1％以上,会显著降低熟料中Al_2O_3和Na_2O的溶出率,这就限制了氟化物的应用。此外,铝电解烟气净化物进入烧结法,也将带入一定的氟。但氟在熟 In the sintering of alumina production, the raw material bauxite into the fluorine, clinker content of about 0.1%. When adding a fluoride, such as calcium fluoride, etc., sintering can reduce the calcination temperature of the clinker. However, the addition of 1% or more, will significantly reduce the dissolution rate of Al 2 O 3 and Na 2 O clinker, which limits the fluoride application. In addition, aluminum electrolytic flue gas purification into the sintering method, will also bring some fluorine. But fluorine is cooked