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The tailings still contain bauxite, which can be separated by reverse froth flotation (flotation of the quartz and depression of the bauxite), using starch as a depressant and amine as a promoter; the pH must be around 10.0.
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were investigated using RL as collector. The effects of regulators and unavoidable ions on flotation were stud- ied. Based on the results of single minerals flotation, the separation experiments of mixed minerals and bauxite ore were carried out.
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The tailings of the beneficiation plant described in chapter 4.3 (Itamarita de Minas) still contain bauxite, which can be separated by reverse froth flotation (flotation of the quartz and depression of the bauxite), using starch as a depressant and amine as a promoter at a pH of approx. 10.
Bauxite is the main raw material for the alumina industry. Direct flotation is the most widely used method for bauxite beneficiation. In this study, a large number of direct flotation tests were ...
The bauxite flotation process has been . Diaspore in bauxite is . description of bauxite flotation process. bauxite flotation process - stagelightsgrouporg. bauxite flotation process_Flotation techniques for separation of diaspore Flotation techniques for separation of . Beneficiation of Bauxite – Upgrading of … Beneficiation of Bauxite .
Efforts are now being made to develop improved flotation technology for the efficient processing of low grade bauxite ores. Such resources are classified according to the primary bauxite mineral (gibbsite, boehmite, or diaspore) and according to gangue minerals (quartz, clays, iron oxides, etc.).
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Separation of silica from bauxite via froth flotation Tailings from an industrial plant have undergone attrition scrubbing and desliming; the quartz silica contained in the tailings has undergone flotation.
For example, flotation of bauxite is practised in the ZhongZhou refinery in China, where diasporic bauxite with high silica-to-alumina content is processed. However, the flotation process has a long way to go for obtaining satisfying results.
Key words: bauxite, collector, direct flotation Introduction Bauxite is the main raw material for the alumina industry. Almost 90% of alumina all over the world is produced from raw bauxite ores (Wang, 2002). China has a large reserve of bauxite resources mainly distributed in …
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In both types of bauxite, the mineralogical assembly includes gibbsite (the only aluminum oxide occurring in Brazil), quartz, kaolinite, iron oxides and titanium bearing minerals. Other minerals may occur as accessories, depending on the mother rock. 2. Bauxite flotation practice
From Introduction: "This report presents the results of an investigation of the physical properties and characteristics of bauxite, with special reference to the possibility of applying commercial methods of concentration to low-grade bauxite."
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High sulfur content is one of the many challenges in processing the refractory bauxites of China. A new method to prepare Al2O3 from high-sulfur bauxite with the NH4HSO4 roasting process was studied.
The preparation of bauxite caused an increase in the alumina/silica mass ratio from 7.30 to 11.05. Subsequently, laboratory scale flotation tests were conducted to verify the reproducibility of the results indicated in the microflotation stage. Laboratory scale flotation tests were done in a Denver machine using a 900 mL cell.
Abstract. This paper presents a potential condition to separate kaolinite through flotation when it is present in bauxite ore. This research anticipates a Brazilian industry requirement, considering the tendency towards the need for aluminosilicates removal from bauxite …
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In the reverse flotation of bauxite ore, dispersants are used to increase the opportunity of interactions between fine particles and reagents (depressants and collectors) in the pulp. Sodium carbonate has been widely used as a dispersant for kaolinite and has proven to be effective in reverse flotation (Marino, 2012, Liu-yin et al., 2010).
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ratio. Of all the bauxite-processing strategies, fl otation is the most attractive and many researchers have been engaged in the study of bauxite fl otation. Flotation of bauxite can be done in a specifi c medium to separate the aluminum minerals from the silicates. After the initiative