Gravity concentration and impurity removal beneficiation system for treating low-grade bauxite
The gravity separation beneficiation system, which combines crushing, grading, and gravity separation, solves the problems of high cost and complex process in the processing of low-grade bauxite. It achieves efficient separation of aluminum minerals and impurities, improving the quality of alumina products and the utilization rate of bauxite.
WO2026113183A1PCT designated stage Publication Date: 2026-06-04ZHENGZHOU NON FERROUS METALS RES INST CO LTD OF CHALCO
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ZHENGZHOU NON FERROUS METALS RES INST CO LTD OF CHALCO
- Filing Date
- 2025-03-14
- Publication Date
- 2026-06-04
Smart Images
Figure CN2025082607_04062026_PF_FP_ABST
Abstract
Disclosed is a gravity concentration and impurity removal beneficiation system for treating low-grade bauxite, comprising: a crushing unit (100), used for crushing bauxite to obtain a crushed material; a pre-treatment and classification unit, used for pre-treating the crushed material, and classifying the pre-treated crushed material on the basis of preset sizes to obtain a first-size-fraction material and a second-size-fraction material, wherein the first-size-fraction material has a larger particle size than the second-size-fraction material; a first gravity concentration unit (300), used for performing gravity concentration and impurity removal on the first-size-fraction material to obtain first-size-fraction gravity concentrate and first-size-fraction gravity tailings; a second gravity concentration unit (400), used for performing gravity concentration and impurity removal on the second-size-fraction material to obtain second-size-fraction gravity concentrate and second-size-fraction gravity tailings; and a sedimentation and pressure filtration unit (600), used for performing sedimentation and pressure filtration on the second-size-fraction gravity concentrate to obtain a dewatered second-size-fraction product.
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