Separation of silica from bauxite via froth flotation - ScienceDirect
2009.3.1 Its circuit includes scrubbing and screening operations, as well as a desliming and gravitic separation circuit to recover bauxite from fines. Increments were taken from the light product of the spirals circuit, in order to compose the sample for the
Charlar en LíneaTreatment technique for wastewater from bauxite flotation and an ...
2022.2.10 According to the bauxite flotation process, the main factors influencing flotation wastewater were fine bauxite residue, flotation reagent residue, flocculant
Charlar en LíneaExperimental Investigation on Desiliconization of Low-Grade
2018.2.2 Desiliconization experiments were carried out during the process of one roughing-one cleaning direct flotation in this work... Experimental Investigation on
Charlar en LíneaTreatment technique for wastewater from bauxite flotation and an ...
2021.12.1 To determine how to return the wastewater back to the flotation process, this study aimed to identify the main components affecting the flotation indexes of
Charlar en LíneaFlotation Decarbonization and Desulfurization of a High-Sulfur
2023.7.29 After the batch flotation and open-circuit flotation tests, it was found that the products meet the requirements of the Bayer method for industrial application. This
Charlar en LíneaExperimental Investigation on Desiliconization of Low-Grade
Desiliconization experiments were carried out during the process of one roughing-one cleaning direct flotation in this work using diasporic high-silica bauxite as experimental
Charlar en LíneaSeparation of silica from bauxite via froth flotation - ScienceDirect
2009.3.1 Abstract. This paper reports an innovative development: concentrating gibbsite via reverse froth flotation in order to obtain a metallurgical-grade bauxite
Charlar en LíneaA review of pretreatment of diasporic bauxite ores by flotation ...
2017.12.1 Bayer process Direct flotation Reverse flotation Diaspore Flocculation and aggregation 1. Introduction Aluminum metal, a major industrial metal, can be
Charlar en LíneaA review of pretreatment of diasporic bauxite ores by flotation ...
2017.12.1 The major method of bauxite beneficiation is the Bayer process, which is leaching at 100 °C to 250 °C by a caustic soda solution (sodium hydroxide) followed by
Charlar en LíneaExperimental Investigation on Desiliconization of Low-Grade
2018.1.1 Experimental Investigation on Desiliconization of Low-Grade Bauxite by Flotation Process January 2018 Authors: Guihong Han Zhengzhou University
Charlar en LíneaAdvances in Beneficiation of Low-Grade Bauxite SpringerLink
2019.2.16 Froth flotation is reported to be the effective process in increasing the Al :Si ratio of low grade bauxite [14,15,16,17,18,19,20,21]. Anionic collectors are considered to be best for direct flotation [ 22 ] and cationic collectors are used in reverse flotation technique [ 17 , 23 , 24 ].
Charlar en LíneaTreatment technique for wastewater from bauxite flotation and
2022.2.10 According to the bauxite flotation process, the main factors influencing flotation wastewater were fine bauxite residue, flotation reagent residue, flocculant residue, and ion accumulation in water. Flotation reagents include collectors (small-molecule organic matter, such as oleic acid and hydroxamic acid) and regulators
Charlar en LíneaExperimental and molecular dynamics simulation study on the
2021.4.1 Introduction. In China, bauxite reserves are general diaspore resources with Al 2 O 3 /SiO 2 mass ratio ranging from 4 to 6 (Deng et al., 2016). To prepare for the feed of Bayer process (normally Al 2 O 3 /SiO 2 mass ratio is more than 8), flotation is an effective physical separation method commonly used to remove part of aluminosilicate
Charlar en LíneaAluminum Mineral Processing and Metallurgy: Iron-Rich Bauxite
2018.11.5 All of these conventional techniques cannot recover iron and aluminum from iron-rich bauxite effectively. The reverse flotation process of iron-rich bauxite cannot achieve effective separation of Al 2 O 3 and SiO 2, because it is characterized by a high content of Al 2 O 3 and SiO 2 and a low ratio of Al 2 O 3 to SiO 2 (m (Al 2 O 3)/ m (SiO 2 ...
Charlar en LíneaFour Bauxite Beneficiation Methods - JXSC Mining
2023.1.13 The main beneficiation methods of bauxite are washing, flotation, magnetic separation, chemical beneficiation, etc.The process of separating concentrates from bauxite ore is actually a process of removing gangue minerals and harmful impurities, and separating high-aluminum minerals and low-aluminum minerals to obtain
Charlar en LíneaLight Metals 2019 SpringerLink
Covers leading-edge developments on alumina and bauxite, aluminum alloys, processing, characterization, reduction, cast shop and electrode technology, ... Synchronous Desulfurization and Desilication of Low-Grade and High-Sulfur Bauxite by a Flotation Process. Wencui Chai, Guihong Han, Yanfang Huang, Yijun Cao, Jiongtian Liu;
Charlar en LíneaStudy on potential microbial community to the waste water
2022.9.28 Discharging waste water from the bauxite desilication process will bring potential environmental risk from the residual ions and organic compounds, especially hydrolyzed polyacrylamide.
Charlar en LíneaExperimental Investigation on Desiliconization of Low-Grade Bauxite
on Desiliconization of Low-Grade Bauxite by Flotation Process Guihong Han, Hongyang Wu, Wenjuan Wang, and Yanfang Huang Abstract Low-grade bauxite resources are abundant in China. However, the high content of silica can not meet the production requirments of alumina. Desiliconization experiments were carried out during the
Charlar en LíneaFlotation of Low-Grade Bauxite Using Modified Humics as
2018.2.2 Abstract. The low-grade bauxite, which is abundant in China, cannot be directly used in Bayer process. Flotation of low-grade bauxite is an effective way to improve the grade. Flotation experiments were carried out by using modified humics as depressant in this paper. The effects of pulp pH, collector dosage and depressant
Charlar en LíneaExperimental Investigation on Desiliconization of Low-Grade Bauxite
2018.1.1 Closed-circuit flotation tests showed that reverse flotation de-silicating can be achieved by a new reagent scheme (DTAL, SFL and MIBC) to obtain a bauxite concentrate (A/S > 10, Al2O3 recovery ...
Charlar en LíneaCharacterization of High Sulfur Bauxite and Its Phase ... - Springer
2023.9.7 At present, high sulfur bauxite is gradually being used in the production of alumina industry to address the shortage of bauxite resources in China. However, sulfur-containing minerals in bauxite can cause iron pollution in the digestion system, corrode steel facilities, increase caustic consumption, and affect the quality of alumina products. From
Charlar en LíneaSynchronous Desulfurization and Desilication of Low-Grade
2019.2.16 Reverse flotation of low-grade bauxite has been studied widely using quaternary ammonium salt as the collector of aluminosilicate minerals [3, 4]. To obtain a better desilication , sodium hexmetaphosphate or starch are usually added in the flotation system to depress diaspore [ 5 , 6 ].
Charlar en LíneaUtilisation of propyl gallate as a novel selective collector for ...
2019.1.15 For diasporic bauxite, flotation has been widely applied to upgrade (A/S) ores as a feed for Bayer process (Xia et al., 2010). Theoretically, approaches for the flotation desilication of diasporic bauxite can be divided into direct flotation (flotation of diaspore and depression of aluminosilicates) and the reverse flotation (flotation of
Charlar en LíneaTreatment technique for wastewater from bauxite flotation
2022.2.10 During bauxite flotation, flotation indexes decrease with increasing water circulation time, resulting in the discharge of bauxite flotation wastewater as well as a waste of resources and great environmental safety risks. To determine how to return the wastewater back to the flotation process, this study aimed to identify the main
Charlar en LíneaA review of pretreatment of diasporic bauxite ores by flotation ...
2017.12.1 Separation of diaspore from bauxite by selective flocculation using hydrolyzed polyacrylamide. Wenli Liu Yue-hua Hu Wei Sun. Materials Science, Environmental Science. 2014. Selective flocculation is a new method to solve the problem of China’s bauxite de-silication besides flotation and reverse flotation. The method of
Charlar en LíneaFlotation Decarbonization and Desulfurization of a High-Sulfur Bauxite
2023.7.29 Elementary substance carbon can absorb the flotation agents during the flotation process, decreasing the adsorption of xanthate on the mineral surface while reducing the aggregation of pyrite. At the same time, elementary substance carbon tends to adsorb the frother, preferentially forming a “carbon foam layer”, resulting in unsatisfactory
Charlar en LíneaEnhanced Bauxite Recovery Using a Flotation Column Packed
2020.6.30 An innovative self-designed medium was packed in a bench-scale flotation column to study its influence on the flotation recovery of bauxite. Computational fluid dynamics (CFD) simulation was conducted to reveal the impact of the packing medium on the turbulent characteristics of collection zone in the column. Simulation results show
Charlar en LíneaBauxite Beneficiation Process And Equipment - JXSC Machine
2022.12.29 The flotation agent is prepared with oleic acid, tall oil, and engine oil at a ratio of 1:1:1. The grade of bauxite flotation concentrate contains 49.65% alumina, the recovery rate is 45.3%, and the A1203/SiO2 is 12.3. The flotation method is more effective for the desalinization process of high-silicon bauxite.
Charlar en LíneaSubstituent Effects in Kaolinite Flotation Using Dodecylamine
2023.2.26 The molecular structure of cationic surfactants is closely related to their flotation performance. In this paper, three cationic surfactants with different head group structures were selected as collectors of kaolinite, and the substituent effects were studied by the DFT method. The DFT calculation results showed that increasing the number of
Charlar en LíneaTreatment technique for wastewater from bauxite flotation
2021.12.1 Besides, this study revealed that waste water from bauxite desilication process was an ideal ecosystem to find novel microorganisms, such as efficient strains for bio-desilication and bio ...
Charlar en Línea