Extraction of vanadium from direct acid leaching solution of clay vanadium ore using solvent extraction with N235

Ye, Guohua; Hu, Yibo; Xiong, Tao; Lu, Lu

doi:10.1016/j.hydromet.2018.02.004

Cited by 61 publications

(14 citation statements)

References 28 publications

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“…39 Zhang et al reported that the extraction yield of vanadium was more than 98% by N235 from leaching solution. 40 Therefore, the purity of vanadium product, extraction yield, and recovery rate of this vanadium recovery process were all in the top level among the present literature. As one potential technology, this closed-loop vanadium recovery technical route not only showed great promise in large-scale industrial applications but also acted as a valuable case study of a transformation pathway of transition metal species.…”

Section: ■ Experimental Sectionmentioning

confidence: 90%

Recovery of High-Purity Vanadium from Aqueous Solutions by Reusable Primary Amines N1923 Associated with Semiquantitative Understanding of Vanadium Species

Wen

Ning

Cao

et al. 2018

ACS Sustainable Chem. Eng.

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The recovery of high-purity vanadium has attracted significant attention regarding both sustainability and environmental protection necessities. However, insufficient understanding of vanadium species in aqueous solution constrains further optimization of the vanadium recovery process. Here, a closed-loop technical route (extraction and stripping) was realized to recover high-purity vanadium products by in situ monitoring/controlling vanadium species. The evolution of vanadium species in the extraction reaction was semiquantitatively visualized by the system combined with annular centrifugal contactors (ACCs) and electrospray ionization time-of-flight mass spectrometry (ESI-TOF-MS), while the active (V 4 and V 10 species) and nonactive (H 2 VO 4 − ) vanadium species were identified. In the stripping process, the behaviors of vanadium species have been described, which affected the morphology of recycled NH 4 VO 3 products. As a result, the transformation pathway of vanadium species in the whole recovery process was performed. Under deep studies of vanadium speciation, pilot-scale experiments have been carried out using actual leaching solution, and high-purity V 2 O 5 products (99.9%) were obtained.

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Section: ■ Experimental Sectionmentioning

confidence: 90%

Recovery of High-Purity Vanadium from Aqueous Solutions by Reusable Primary Amines N1923 Associated with Semiquantitative Understanding of Vanadium Species

Wen

Ning

Cao

et al. 2018

ACS Sustainable Chem. Eng.

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“…In addition, there are several studies about extraction and separation of V from other metals, applying Aliquat 336, N 235 or D2EHPA/TBP as extractants [124,125,126]. Similarly, the pH value of the leaching liquor is also adjusted by H 2 SO 4 or NH 4 OH to around 1 to 2 [127]. Besides, in the slight basic range (8 < pH < 9), Aliquat 336 can be used to extract V over Mo [128].…”

Section: Solvent Extractionmentioning

confidence: 99%

Recent advances in the recovery of transition metals from spent hydrodesulfurization catalysts

Wang

Olayiwola

et al. 2021

Tungsten

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Hydrodesulfurization (HDS) catalysts are widely used in petrochemical industries, playing a crucial role in desulfurization process to get high-quality oil. The generation of Al-based spent HDS catalyst is estimated to be 1.2×10 5 tons per year around the world. The spent HDS catalysts have been regarded as an important secondary resource due to their abundant output, considerable metal value, and regeneration potential; however, if improperly handled, it would severely pollute the environment due to high content of heavy metals. Thus, the recovery of valuable metals from spent HDS catalysts is of great importance from both resource utilization and environmental protection points of view. In this work, recent advances in the spent HDS catalyst treatment technologies have been reviewed, focusing on the recovery of valuable transition metals and environmental impacts. Finally, typical commercial processes have been discussed, providing in-depth information for peer researchers to facilitate their future research work in designing more effective and environmentally friendly recycling processes.

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“…Many methods have been proposed to remove Mg from WPA, such as ion exchange [7,8], membrane separation [9][10][11], chemical precipitation [12,13], and solvent extraction [4,[14][15][16][17]. Recently, solvent extraction has increasingly drawn attention for its high separation efficiency and reasonable cost [18].…”

Section: Introductionmentioning

confidence: 99%

Ultrasound-Assisted Micro-Channel Extraction of Magnesium from Wet-Process Phosphoric Acid

Xia

Zhang

Hong

et al. 2022

SERDJ

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A new extractant PN-1 was synthesized, and an ultrasound-assisted micro-channel extraction (UAME) system was developed for the extraction of magnesium from wet-process phosphoric acid (WPA). The effects of O/A ratio, P 2 O 5 content, initial pH, ultrasound power, and aqueous phase ratio on extraction were investigated. The extraction efficiency of Mg 2+ could reach 89.09% under the conditions of 74 W ultrasound power, 4 O/A ratio, and 0.2 mL/min aqueous phase velocity. The response surface methodology (RSM) result indicated that O/A ratio and aqueous phase velocity have extremely significant influences on extraction efficiency, significant interaction existed between ultrasound power and aqueous phase velocity, and ultrasound power evidently reduced extraction time. Furthermore, the magnesium could be fully stripped by 1 mol/L H 2 SO 4 with a phase ratio lower than 2. Thus, the new extractant PN-1 and ultrasound-assisted microchannel extraction system are suitable for the extraction of magnesium from wet-process phosphoric acid.

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Extraction of vanadium from direct acid leaching solution of clay vanadium ore using solvent extraction with N235

Cited by 61 publications

References 28 publications

Recovery of High-Purity Vanadium from Aqueous Solutions by Reusable Primary Amines N1923 Associated with Semiquantitative Understanding of Vanadium Species

Recovery of High-Purity Vanadium from Aqueous Solutions by Reusable Primary Amines N1923 Associated with Semiquantitative Understanding of Vanadium Species

Recent advances in the recovery of transition metals from spent hydrodesulfurization catalysts

Ultrasound-Assisted Micro-Channel Extraction of Magnesium from Wet-Process Phosphoric Acid

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