Extraction of Vanadium from the Spent Residuum Hydroprocessing Catalysts by Fenton-like Reaction Followed with Alkaline Leaching

Yuefen Lv; Ge Zhao; Cailong Shen; Yanzhen Chen; Yiqun Fan; Guangji Zhang; Chao Yang

LAPSE

Living Archive for Process Systems Engineering

LAPSE:2023.36562

Published Article

LAPSE:2023.36562

Extraction of Vanadium from the Spent Residuum Hydroprocessing Catalysts by Fenton-like Reaction Followed with Alkaline Leaching

Yuefen Lv, Ge Zhao, Cailong Shen, Yanzhen Chen, Yiqun Fan, Guangji Zhang, Chao Yang

August 3, 2023

Spent residuum hydroprocessing (RHDP) catalysts are hazardous waste bearing high-content vanadium and large amounts of oily pollutants. In this paper, a process featuring a Fenton-like reaction and alkaline leaching was proposed to recover vanadium from spent RHDP catalysts. In the first step, a Fenton-like reaction using peroxide was conducted to degrade the oily pollutants and make the surface of the spent catalyst becomes hydrophilic. In the second step, the vanadium-containing deposit on the catalyst was leached with 0.5 M Na2S2O8 at 70 °C for transforming vanadium sulfide to oxide in 5 h. In the last step, alkaline leaching was employed to dissolve vanadium from the oxidizing residue at 80 °C for 1 h. It was found that the accumulated leaching efficiency of vanadium can reach up to 90.92%, and only a small part of aluminum and sulfur was dissolved. These results indicated that this combined process can extract vanadium selectively from spent residuum hydroprocessing catalysts under a relatively mild condition.

Record ID

LAPSE:2023.36562

Keywords

alkali leaching, Fenton-like reaction, oil removal, spent residuum hydroprocessing catalyst, vanadium

Subject

Environment

Suggested Citation

Lv Y, Zhao G, Shen C, Chen Y, Fan Y, Zhang G, Yang C. Extraction of Vanadium from the Spent Residuum Hydroprocessing Catalysts by Fenton-like Reaction Followed with Alkaline Leaching. (2023). LAPSE:2023.36562

Author Affiliations

Lv Y: State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
Zhao G: School of Chemical Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China
Shen C: CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
Chen Y: CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
Fan Y: State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China
Zhang G: CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
Yang C: CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

Journal Name

Processes

Volume

11

Issue

7

First Page

2021

Year

2023

Publication Date

2023-07-06