摘要
晶种分解是拜耳法生产氧化铝过程中一个十分重要的工序 ,且直接影响氧化铝的产量和质量。本文介绍一种晶体循环量很小的分解工艺 ,根据试验研究 ,利用特殊结构的分解槽自身保留晶种 ,在较高的固含条件下分解。流程中取消专用分级设备 ,并将晶种过滤 ,输送设备减少 90 %以上。文中讨论物料停留时间 ,粒度平衡等关键问题。
Solution with seed crystal is a important process in alumina production by bayer method. It has a direct effect on the yield and quality of alumina. Based on experimental research, the solution technology introduced in this paper has a little crystal circulating rate by utilizing the remain crystal seed in solution tank with special structure and under the solution condition of high solids content. In the flowsheet, transportation equipments can be reduced over 90% by canceling classification, and filtrating srystal seed. The key problems such as staying time of materials and size balance are also discussed.
出处
《矿产保护与利用》
2001年第4期36-40,共5页
Conservation and Utilization of Mineral Resources
