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网页The depressing function of bacteria of LKD on diaspore and kaolinite is studied through flotation experiments, mineral ζ-electric potential and infrared spectroscopy analysis. 网页2012年1月1日The depressing function of bacteria of LKD on diaspore and kaolinite is studied through flotation experiments, mineral ζ-electric potential and infrared 网页2009年3月1日This flotation was carried out in two steps: the first step was the flotation of gibbsite/kaolinite from quartz at pH 2, using alkyl sulfates as collectors; the second step 网页2021年2月24日The desulfurization of high-sulfur bauxite via flotation is more difficult than conventional sulphide, since the finely disseminated sulphide in the high-sulfur bauxite 网页ABSTRACT Bauxite ore is the primary mineral resource for the production of aluminum metal and includes gibbsite [Al(OH) 3], diaspore [α-AlO(OH)] and boehmite [γ-AlO(OH)]. 网页effects on flotation, such as ore sliming, a common characteristic of oxidized ores. WG appears to have wide applicability for high-sulfur bauxite based on its impact on all of the 网页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 网页Keywords: bauxite, silica, reverse flotation, ratio of alumina to silica INTRODUCTION Indonesia has a great amount of bauxite resources, particularly in West Kalimantan 网页Bauxite is a sedimentary rock, and consists mostly of the aluminium minerals gibbsite (Al (OH)3), boehmite (γ-AlO (OH)) and diaspore (α-AlO (OH)), and is usually mixed 网页Byproduct an overview ScienceDirect Topics . Covers two different dusts cement kiln dust CKD and lime kiln dust LKD CKD is a fine powdery material equivalent to Portland 网页2022年1月7日The main chemical compositions (mass percent) of bauxite flotation tailings were 40.56% Al 2 O 3, 34.00% SiO 2, 4.34% K 2 O, 3.31% TiO 2, 1.83% Fe 2 O 3, 0.37% MgO, and 0.59% Li 2 O. The occurrence state 网页2022年2月10日Bauxite flotation, an important part of the Bayer process with dressing, can improve the utilization rate of medium- and low-grade bauxite resources and contribute greatly to the sustainable development of the alumina industry. A large amount of water is needed for bauxite flotation, and most of this water can be recycled by adding a 网页2020年1月28日It is expected to provide reference for the flotation desiliconization of diasporic bauxite. Materials and Methods Minerals The diaspore and kaolinite samples were taken from Shanxi province in China, and the purity of samples were confirmed by chemical composition analysis and X-Ray Diffraction (XRD). 网页2017年10月15日The effect of Al3+ in backwater on the flotation of diaspore bauxite was investigated by micro-flotation tests and the underlying mechanisms were investigated by inductively coupled plasma... 网页effects on flotation, such as ore sliming, a common characteristic of oxidized ores. WG appears to have wide applicability for high-sulfur bauxite based on its impact on all of the bauxites tested. 4. Conclusion . Flotation desulfurization of high-sulfur bauxites could be the most economical and effective method for the treatment these bauxites. 网页Flotation can be applied in bauxite ores either by removing the impurities (reverse flotation) or by floating the valuable minerals (direct flotation). Extensive research has been done in China to upgrade the diasporic bauxite 网页The final size range of the bauxite sample was: -150 µm + 15 µm. 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. 网页Keywords: bauxite, silica, reverse flotation, ratio of alumina to silica INTRODUCTION Indonesia has a great amount of bauxite resources, particularly in West Kalimantan Province. Based on the data from USGS (United States Geological Survey) in 2015 1, the amount of bauxite reserves in Indonesia was ranked 7th in the world. 网页2021年4月1日The batch flotation test was conducted in an XFG flotation cell. For each test, 600 g bauxite sample was mixed with 600 mL water and ground to 95% passing 200 mesh standard sieve. The flotation pH was regulated by Na 2 CO 3 and fixed at 9.5. Then hexametaphosphate, NaOl and BDA was added in order. 网页Column flotation tests were performed on the bauxite ore to evaluate the impact of the packing medium on flotation performance. As shown in Table 3, without packing, 50.57% of Al 2 O 3 was 网页2020年5月18日A study of bauxite tailing quality improvement by reverse flotation To cite this article: W Wulandari et al 2018 IOP Conf. Ser.: Mater. Sci. Eng. 285 012025 View the article online for updates and enhancements. This content was downloaded from IP address 207.46.13.0 on 18/05/2020 at 00:23 网页Sample of Bauxite Journal of the Indian Institute of . for enriching low grade bauxites with high percentage of silica and iron oxides particularly results of studies on the flotation of alumina and the depression of silica from a sample of Samples of the ore were analysed by the method Scott 网页Some industrial practices in the processing of bauxite resources, such as selective grinding, magnetic separation, and flotation, as well as some recent research efforts are summarized in this .View full textDownload full textKeywordsaluminum, bauxite, beneficiation, processingRelated var addthis_config = { ui_cobrand: "TaylorFrancis 网页Contribute to lbsid/en development by creating an account on GitHub. 网页2022年3月1日Surface pretreatment of low-grade bauxite using oxalic acid was carried out prior to the flotation experiments. 500 g of bauxite samples with a 60% pulp density was firstly ground to 85% < 0.075 mm. After the slurry was transferred to a beaker, a certain amount of oxalic acid solution was added to keep its concentration of 0.01, 0.05, 0.5 mol/L. 网页2021年11月1日1. Introduction. As a typical layered aluminum–silicate clay mineral, kaolinite is one of the main silica gangue minerals in bauxite [1], [2], [3].The removal of kaolinite is of important significance to the entire bauxite flotation desiliconization process [4], [5], [6].Reverse flotation is an optimal physical beneficiation method for removing 网页2016年9月1日In a fundamental study, the best conditions determined in the first step were evaluated for the flotation of kaolinite from bauxite ore using laboratory scale experiments. Tests with... 网页2021年2月24日The desulfurization of high-sulfur bauxite via flotation is more difficult than conventional sulphide, since the finely disseminated sulphide in the high-sulfur bauxite can lead to excessive particle entrainment, increase of froth, and low separation efficiency. Acidification of high-sulfur bauxite resulting in changes in mineral surface 网页ABSTRACT Bauxite ore is the primary mineral resource for the production of aluminum metal and includes gibbsite [Al(OH) 3], diaspore [α-AlO(OH)] and boehmite [γ-AlO(OH)]. Gangue minerals generally include iron oxides (Hematite [Fe 2O 3], Goethite [FeO(OH)]), silicates (quartz [SiO 2]), kaolinite [Al 2Si 2O 5(OH) 4] and others such as rutile/anatase 网页2013年4月19日Bauxite resources are widely spread in the earth. However, the effective utilization of this mineral is still under infant. The conventional collector for diaspore mineral is oleic acid. It has three main drawbacks which are highly insoluble, large dosages in bauxite flotation, and low selectivity, which hinder its application in industry. 网页effects on flotation, such as ore sliming, a common characteristic of oxidized ores. WG appears to have wide applicability for high-sulfur bauxite based on its impact on all of the bauxites tested. 4. Conclusion . Flotation desulfurization of high-sulfur bauxites could be the most economical and effective method for the treatment these bauxites. 网页Keywords: bauxite, silica, reverse flotation, ratio of alumina to silica INTRODUCTION Indonesia has a great amount of bauxite resources, particularly in West Kalimantan Province. Based on the data from USGS (United States Geological Survey) in 2015 1, the amount of bauxite reserves in Indonesia was ranked 7th in the world. 网页Contribute to jidafang2022/en development by creating an account on GitHub. 网页2020年6月30日An innovative self-designed medium was packed in a bench-scale flotation column to study its influence on the flotation recovery of bauxite. 网页Column flotation tests were performed on the bauxite ore to evaluate the impact of the packing medium on flotation performance. As shown in Table 3, without packing, 50.57% of Al 2 O 3 was 网页2020年5月18日A study of bauxite tailing quality improvement by reverse flotation To cite this article: W Wulandari et al 2018 IOP Conf. Ser.: Mater. Sci. Eng. 285 012025 View the article online for updates and enhancements. This content was downloaded from IP address 207.46.13.0 on 18/05/2020 at 00:23 网页Sample of Bauxite Journal of the Indian Institute of . for enriching low grade bauxites with high percentage of silica and iron oxides particularly results of studies on the flotation of alumina and the depression of silica from a sample of Samples of the ore were analysed by the method Scott 网页Some industrial practices in the processing of bauxite resources, such as selective grinding, magnetic separation, and flotation, as well as some recent research efforts are summarized in this .View full textDownload full textKeywordsaluminum, bauxite, beneficiation, processingRelated var addthis_config = { ui_cobrand: "TaylorFrancis
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