序言某铝厂从国外引进的密闭式中间下料预焙阳极电解槽的工业生产实践证明:中间下料电解槽应用粗颗粒、高比表面积和低α-Al_2O_3含量的砂状氧化铝为原料生产金属铝,可以提高电解槽中间部位的结壳能力;加快在电解质中的溶解速度,减少槽底沉淀;能稳定和改善 Preface An aluminum plant imported from abroad, closed intermediate prebaked anodized electrolytic cell production practice has proved that: the middle of the use of electrolytic cell coarse particles, high specific surface area and low α-Al_2O_3 content of alumina as a raw material production of sand Aluminum metal, can increase the crust capacity in the middle part of the electrolyzer; speed up the dissolution rate in the electrolyte to reduce sediment bottom; Stable and improve