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通过对目前世界上拜尔法强化溶出工艺的技术分析和对河南封登铝土矿的半工业试验研究，提出了适宜于河南登封铝土矿特点的改良管道预热—停留罐溶出新工艺，它既具有管道预热—停留罐溶出工艺的优点，即保证有良好的溶出效果和较低的能耗，又可避免在管道预热面产生结疤、使强化溶出工艺能长周期运转。
Based on the technical analysis of the Bayer process enhanced leaching process in the world and the semi-industrial test study on the sealing bauxite in Henan Province, a new technology of improved pipeline preheating-stopping tank dissolution suitable for the characteristics of Dengfeng bauxite in Henan was put forward , Which not only has the advantages of pipeline preheating-stopping tank stripping process, that is, to ensure good leaching effect and lower energy consumption, but also to avoid scarring on the pipe preheating surface and prolonging the stripping process.