Bauxite Flotation Tailing

The invention provides a method for preparing artificial stone by bauxite flotation tailings and relates to a method for preparing artificial stone by flotation tailings in an aluminum oxide production process, characterized in that the preparation process comprises the steps of: (1) filtering and drying ore pulp of bauxite flotation tailings to obtain loose tailing mineral powder …

A large amount of tailing from the flotation processing of pyrite ore are accumulated and landfilled, resulting in serious environmental pollution and a waste of valuable elements such as Al, Ti, Si, etc. Aiming to extract alumina from coal-derived pyrite flotation tailing, the process has been proposed based on activation roasting-alkali leaching for desilication, followed by alumina ...

With the development of the alumina industry, in addition to generating red mud waste, the Bayer flotation process also produces many bauxite tailings (BTs) [1]. ... (FA) with bauxite tailing (BT) slurry for geopolymer synthesis and investigate the long-term leaching behaviour of BT slurry/FA geopolymers (BFGs) for heavy metal immobilisation. ...

This study proposed a green and effective lithium extraction process employing sodium bicarbonate solutions to leach lithium-rich bauxite flotation tailings. 91.75% of lithium …

The invention relates to a desiliconization processing method for bauxite flotation tailings. The method comprises the following steps: performing graded concentration on bauxite flotation tailings slurry with the concentration of 10-20 percent to separate to-be-floated coarse-fraction component slurry; adding a collecting agent into the to-be-floated coarse-fraction component …

Flocculation and sedimentation of fine bauxite from flotation tailing pulp were studied using different flocculants to investigate the possibility of its application. The results of this investigation indicate that inorganic flocculants of PAC and …

Therefore, this study is aimed to utilize reverse flotation method to recover alumina content from washed bauxite tailing. The reverse flotation experiments were carried out at pH of 6 and 8 ...

Large-scale application of filled coal mining technology has long been limited by conditions such as the cost of filling. Compared to traditional filling materials, coal flotation tailing filling materials (CFTFM) offers advantages such as low cost and excellent performance. The Box–Behnken response surface method was used to investigate the influence of flotation …

Mining generates 13 billion tonnes per year of potentially toxic wet slurry waste, called tailings, commonly deposited in tailings storage facilities (TSF). Since 1915, 257 TSF failures have ...

This paper reports an innovative development: concentrating gibbsite via reverse froth flotation in order to obtain a metallurgical-grade bauxite concentrate. Tailings from an …

Therefore, this study is aimed to utilize reverse flotation method to recover alumina content from washed bauxite tailing. The reverse flotation experiments were carried out at pH of 6 and 8; while the particle sizes were varied at - 140+270 mesh and -270 mesh, using a batch and circuit configuration. The result of this study shows that the ...

Bauxite mine tailings can be used as the reserve resources of aluminium and lithium. In this study, a less energy consumption treatment method for extracting aluminium and lithium from bauxite mine tailings has been proposed, which used mixed acid to leach aluminium and lithium from tailings directly, avoided roasting for reducing energy consumption, and …

To study the recycling of bauxite tailings (BT) and the poor water resistance of magnesium phosphate cement (MPC), the effects of BT and calcined BT (CBT) on the setting …

Bauxite residue presents challenges such as large production and storage capacity (with a global storage capacity of over 5 billion tons), complex and variable composition, and difficulty in recycling and utilization. ... step two—extracting and recovering Ti from Ti-enriched tailing with acid leaching and precipitate flotation. J. Hazard ...

Treatment of backwater in bauxite flotation plant and optimization by using Box-Behnken design. Trans. Nonferrous Met. Soc. China, 29 (4) (2019), pp. 821-830. ... Use of bauxite tailing for the production of fine lightweight aggregates. J. Clean. Prod., 372 (2022), Article 133603. View PDF View article View in Scopus Google Scholar

The high content of lithium and aluminium greatly improved the economic value of bauxite mine tailings in Guiyang. Tailing resource utilisation is urgent to adopt appropriate technology to extract Al and Li. Because clay minerals are the main components of tailings, the Bayer process is no longer applicable, the acid method (Bazin et al., 2007 ...

This paper systematically investigated the leaching behavior of bauxite lithium-rich beneficiation tailings in caustic solution, together with their phase and morphological changes. The main chemical compositions (mass percent) of bauxite flotation tailings were 40.56% Al2O3, 34.00% SiO2, 4.34% K2O, 3.31% TiO2, 1.83% Fe2O3, 0.37% MgO, and 0.59% Li2O. The …

Bauxite flotation can promote the ratio of alumina to silica [126] but as a result bauxite tailings are produced. These tailings comprise mainly (on an oxide basis) of alumina, silica and then ...

The effect of four different oxidants on the dissolution of zinc from the flotation tailing in sulfuric acid solution was tested (Fig. 3 (a-d)). 87.1% Zn, 1.9% Pb and 11% Fe dissolutions were obtained using 1 g/L potassium permanganate (KMnO 4) as an oxidant addition in 1.0 M sulfuric acid solution at 40 °C leaching temperature and solid-to ...

The flotation tailing itself is located on the border of the urban and industrial parts of the city, and below it, there is a city wastewater collector. Due to its close proximity to the city center, the Old Flotation Tailings in Bor are also one of …

More than 70% lithium in bauxite can be enriched in the tailings during the flotation desilication process of low-grade bauxite, and the Li 2 O content can reach more than 0.5% . Additionally, acid and alkali processes can leach lithium in clay-type lithium ore.

The invention discloses a solid-liquid separation method for bauxite positive flotation and desilication tailing pulp. The solid-liquid separation method makes full use of the primary flocculation and secondary hydrophobic properties of anionic and cationic polyacrylamide, and consists of a section of reaction, a section of settlement and a group of filter pressing.

About 0.2 t of tailings is generated for every 1 t bauxite ore processed by flotation [25]. Large quantities of bauxite tailings not only occupy large space but also cause damage to the environment. Bauxite tailings can be used as raw materials of lightweight soil [26], ceramics [27], [28], zeolite [29], geopolymer [30], and cement [31], but ...

The distribution behavior of the HZB collector (a kind of long chain fatty acid) in the desilication system of bauxite flotation was studied. The results show that the collector tends towards froth products in the steps of the roughing, the first cleaning and the second cleaning, while towards the tailing product in the step of the scavenging, and in each job except …

Lithium-rich bauxite ores have been reported in the French Alps and Guizhou, southwest China (Verlaguet et al., 2011, Wang et al., 2013), and Li is enriched in clay minerals in the mine tailings (Zhang et al., 2019).Bauxite resources in SW China are abundant, especially in Guizhou, and a large number of bauxite deposits have been mined (Sun et al., 2020).

The chemical analysis of bauxite tailing showed the composition of alumina (Al2O3) is approximately 49.41%, while silica (SiO2) and hematite (Fe2O3) are about 12.58% and 10.6% respectively, and ...

The leaching of bauxite flotation tailings was carried out in an alkali solution. Elevated temperature, alkali concentration, and prolonged time contributed to the leaching of …

In this study, low-grade bauxite ore from Seydişehir (Konya, Turkey) containing 57.33% Al 2 O 3 and 9.01% SiO 2, (A/S = 6.36) was investigated to determine the modal …

Zhang et al. [28] have established a bauxite flotation froth image classification model based on the Gabor wavelet transformation algorithm. ... A scraper above the flotation tank scrapes the froth into the overflow tank and discharges it into the tailing tank. The valuable substances in the flotation tank are transported to the concentrate ...

In this study, butyl xanthate and terpenic oil were applied in the reverse flotation for the simultaneous decarbonization and desulfurization of high-sulfur bauxite. After the batch …