发明授权
US4226838A Process for accelerating the digestion and sedimentation steps on the Bayer alumina process 失效
加速拜耳氧化铝工艺消化和沉淀步骤的方法

Process for accelerating the digestion and sedimentation steps on the
Bayer alumina process
摘要:
An improved process for accelerating the digestion process in the Bayer alumina process is provided which promotes both the goethite-hematite conversion and a more perfect and quick dissolution of the diaspore. The above is achieved by carrying out the digestion in the process of 5-20% by weight calculated on the dry weight of the bauxite of a novel hydrogarnet catalyst.
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