High Cr(VI) adsorption capacity of rutile titania prepared by hydrolysis of TiCl4 with AlCl3 addition

Wu, She–Ching; He, Xiaobo; Wang, Lijun; Chou, Kuo‐Chih

doi:10.1007/s12613-020-1965-8

Cited by 9 publications

(1 citation statement)

References 30 publications

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“…As part of this review, Li et al 18 conducted structural considerations on the reaction with XRD and FT-IR in the process of recovering vanadium and chromium through microwave absorption characteristics and thermal behavior evaluation of vanadium slag. Chen et al 19 recovered Cr, V using sodium carbonate roasting for high-purity shuttle production. We consider the analysis of phase changes through XRD, SEM, and Raman analyses.…”

Section: Introductionmentioning

confidence: 99%

A comparative study on the chloride effectiveness of synthetic rutile and natural rutile manufactured from ilmenite ore

Jung

Kim

Lee

2021

Sci Rep

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Studies on continuous and selective chlorination by using ilmenite have been actively conducted because the efficient removal of FeO from ilmenite(FeTiO3) ore using selective chlorination not only improves the reaction purity of TiCl4 but it also leads to price competitiveness compared to TiCl4 synthesized from natural rutile. The chlorination of synthetic rutile with FeO removed was compared with that of natural rutile to examine the reaction efficiency. The selective chlorination efficiency depends on the input amounts of coke and Cl2, as shown by thermodynamic calculation, when FeO is selectively removed. It was found that manufacturing of TiCl4 was easier by using the synthetic rutile, because it had greater porosity than natural rutile. Relatively greater pore volumes were found in the synthetic rutile than in natural rutile. It was confirmed that the reaction efficiency of chlorination for TiCl4 production was directly related to the difference in the porosity distribution between the titanium ores, as verified by a kinetic comparison of synthetic and natural rutiles.

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Section: Introductionmentioning

confidence: 99%

A comparative study on the chloride effectiveness of synthetic rutile and natural rutile manufactured from ilmenite ore

Jung

Kim

Lee

2021

Sci Rep

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Preparation and Cr (VI) adsorption of functionalized polyimide fibers

Jia

Jiang

et al. 2022

J of Applied Polymer Sci

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In order to overcome the shortcomings of nanofiber membranes such as low mechanical properties and poor acid resistance, amino-rich functionalized polyimide (PI)-polyethyleneimine (PEI) fibers were successfully prepared in the study. The structure and morphology in each functionalization step were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), static contact angle, attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR), and X-ray photoelectron spectroscopy (XPS) measurements. The adsorption kinetics analysis showed that the adsorption process followed a pseudo-second-order model, and the adsorption isotherm could be described better by the Langmuir model indicating the adsorption process was mainly chemical and homogeneous monolayer adsorption. Furthermore, the maximum adsorption capacity based on the Langmuir model was about 50 mg g À1 , and the calculated thermodynamic parameters demonstrated an endothermic process. Meantime, the PEI-grafted PI fibers also exhibited good regeneration performance and stable tensile strength during recycling tests process. In the first 3 adsorption-desorption cycles, the removal efficiency and tensile strength of PI-PEI fibers could be maintained up to 60.44% and 89.29% of the initial adsorption, respectively. This work achieved the function of removing Cr (VI) by combining the excellent high temperature resistance, acid resistance, and mechanical properties of PI fibers.

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Graphene oxide wrapped magnetic nanoparticle composites induced by SiO2 coating with excellent regenerability

Cui

Ding

et al. 2021

Int J Miner Metall Mater

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High Cr(VI) adsorption capacity of rutile titania prepared by hydrolysis of TiCl4 with AlCl3 addition

Cited by 9 publications

References 30 publications

A comparative study on the chloride effectiveness of synthetic rutile and natural rutile manufactured from ilmenite ore

A comparative study on the chloride effectiveness of synthetic rutile and natural rutile manufactured from ilmenite ore

Preparation and Cr (VI) adsorption of functionalized polyimide fibers

Graphene oxide wrapped magnetic nanoparticle composites induced by SiO2 coating with excellent regenerability

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