Preparation of one‐part geopolymeric precursors using vanadium tailing by thermal activation

Luo, Yongpeng; Bao, Shenxu; Zhang, Yimin

doi:10.1111/jace.16835

Cited by 47 publications

(12 citation statements)

References 13 publications

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“…Different precursors have been used in various research studies such as fly ash [ 22 , 28 , 29 ], metakaolin [ 30 , 31 , 32 ], and blast furnace slag [ 33 , 34 , 35 , 36 ]. In most cases, the reviewed studies have investigated the feasibility of using quarry dust, mine tailings, or industrial waste as precursors in geopolymer cements and binders [ 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ]. Since quarry dust and mining by-products are the focus of the current paper, a separate section has been dedicated to them.…”

Section: Geopolymer Compositionmentioning

confidence: 99%

Quarry Waste as Precursors in Geopolymers for Civil Engineering Applications: A Decade in Review

Solouki

Viscomi²,

Lamperti³

et al. 2020

Materials

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Carbon footprint reduction of paving materials could be explored through recycling mining by-products into different applications, which will preserve natural resources and decrease environmental issues. One possible approach is to reuse quarry dust and mining ore waste as precursors in geopolymer applications. geopolymers are mineral polymers rich in aluminosilicates with an amorphous to a semi-crystalline three-dimensional structure. The current review aims to summarize the studies conducted during the past decade on geopolymers containing quarry dust and mine tailings. The first section discusses various precursors used for geopolymer cement production such as metakaolin, ground granulated blast furnace slag (GGBFS), fly ash, and quarry/mining ore wastes including silt, tungsten, vanadium, copper, gold, zinc, marble, iron, basalt, and lithium. Different calcination treatments and curing conditions have been summarized. In some cases, the precursors are required to be calcined to increase their reactivity. Both ambient temperature and elevated temperature curing conditions have been summarized. Less attention has been paid to room temperature curing, which is necessary for field and industrial implementations. Engineering properties such as compressive strength, density, durability and acid resistance, water absorption and abrasion of geopolymers containing mining waste were reviewed. One of the main barriers preventing the widespread use of waste powders, in addition to economic aspects, in geopolymers could be due to their unstable chemical structure. This was shown through extensive leachate of Na+ or K+ cations in geopolymer structures. The review of over 100 articles indicated the need for further research on different aspects of quarry waste geopolymer productions before its full industrial implementation.

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Section: Geopolymer Compositionmentioning

confidence: 99%

Quarry Waste as Precursors in Geopolymers for Civil Engineering Applications: A Decade in Review

Solouki

Viscomi²,

Lamperti³

et al. 2020

Materials

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“…Vanadium (V) is usually associated with other minerals. Acid leaching is an effective way to extract V from the V‐bearing resources such as stone coal, waste catalysts, and fly ashes . Separating and recovering V from the complex acid leaching solution is crucial for the production of V products.…”

Section: Introductionmentioning

confidence: 99%

Characteristics and Vanadium Adsorption Performance of Resin/Carbon Composite Electrodes in Capacitive Deionization

2020

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Activated carbon (AC) and carbon nanotubes (CNTs) were used to fabricate resin/carbon composite electrodes (D314/AC and D314/CNTs). The adsorption characteristics of vanadium (V) on the two electrodes under different pH and voltage conditions were compared in capacitive deionization. Physical and electrochemical studies on the electrodes indicated that micropores and mesopores are well balanced in D314/AC, but mesopores are dominant in D314/CNTs. D314/ CNTs showed higher specific capacitance and higher ion adsorption capacity than D314/AC. This study indicated that the adsorption performance of composite electrodes for V is affected by the electrode material, especially the pore properties.

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“…The other significant terms in equation 5are A, C, D, AC, BC, CD, A 2 , C 2 , D 2 and their respective Pvalues are <0.0001, <0.0001, <0.0001, 0.0106, 0.0236, 0.0056, <0.0001, <0.0001, <0.0001, respectively. The correlation coefficient R 2 of the model is 0.9888, and the R 2 Adj is 0.9776 indicating that the given quadratic response surface model can fully fit the experimental data by Equation (5). Furthermore, in order to simplify the calculation of the equation, the inconspicuous terms (P-value <0.05) in Equation (5) were removed.…”

Section: 3analysis Of Rsm 331 Model Fitting and Anovamentioning

confidence: 94%

“…Then the kettle was sealed and the mixture was heated to a set temperature with constant mechanical stirring. After reaction, the kettle was cooled down naturally to ambient temperature and the solution was filtered, and pH value of the filtrate was adjusted to 8.5 by sulfuric acid to form precipitation as Equation (2). WCB can be obtained after the precipitation was filtered, washed and dried at 60 ℃ in drying oven.…”

Section: 2methods Of Silica Leachingmentioning

confidence: 99%

“…Vanadium-bearing shale is an important vanadium resource in China, and the vanadium reserves in it are much larger than that in vanadium-titanium magnetite. Vanadium-extraction residue (VER) is the main solid waste produced in vanadium extraction from vanadium-bearing shale [1][2][3][4]. Approximately 120-150 tons VER is generated for every ton V2O5 production from the shale due to the low vanadium grade in the shale (c.a.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Silicon Leaching for White Carbon Black Preparation from Vanadium-Extraction Residue Using Response Surface Methodology

Wang¹,

Bao²,

Zhang³

et al. 2020

Rev. Chim.

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Vanadium-extraction residue (VER) is rich in silicon and the high temperature and high pressure alkali leaching can be used to prepare white carbon black (WCB). The effects of the mass ratio of alkali to slag, liquid-solid ratio, reaction temperature and reaction time on the silica leaching ratio were investigated. Response surface methodology was used to analyze the interaction of these main leaching parameters and the final regression equation can be obtained. By using the regression equation, the leaching schemes can be designed as the maximum leaching ratio of silica was set, thereby the optimal leaching parameters also can be obtained to reduce the leaching cost. Repeated experiments showed that the optimized leaching ratio can reach 95.26% which was just lower the predicted value by 2.17%, indicating that the regression equation was reliable to be used to optimize the leaching process. The WCB product with specific surface area of 105.1 m2/g was verified by XRD and FTIR.

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Preparation of one‐part geopolymeric precursors using vanadium tailing by thermal activation

Cited by 47 publications

References 13 publications

Quarry Waste as Precursors in Geopolymers for Civil Engineering Applications: A Decade in Review

Quarry Waste as Precursors in Geopolymers for Civil Engineering Applications: A Decade in Review

Characteristics and Vanadium Adsorption Performance of Resin/Carbon Composite Electrodes in Capacitive Deionization

Optimization of Silicon Leaching for White Carbon Black Preparation from Vanadium-Extraction Residue Using Response Surface Methodology

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