Optimizing vanadium and tungsten leaching with lowered silicon from spent SCR catalyst by pre-mixing treatment
Sign Up to like & getrecommendations! Published in 2018 at "Hydrometallurgy"
DOI: 10.1016/j.hydromet.2018.10.003
Abstract: Abstract In this paper, the leaching behaviors of vanadium (V), tungsten (W) and silicon (Si) from spent SCR (selective catalytic reduction) catalyst were evaluated and a pre-mix treatment to enhance V-W leaching with low Si… read more here.
Keywords: vanadium tungsten; scr catalyst; silicon spent; spent scr ... See more keywords
A clean and efficient approach for recovery of vanadium and tungsten from spent SCR catalyst
Sign Up to like & getrecommendations! Published in 2021 at "Minerals Engineering"
DOI: 10.1016/j.mineng.2021.106857
Abstract: Abstract The widespread use of selective catalytic reduction (SCR) catalysts will provide many waste SCR catalysts. These spent catalysts can be identified as hazardous solid waste because they contain a lot of heavy metals. This… read more here.
Keywords: clean efficient; scr catalyst; catalyst; vanadium ... See more keywords
Green Recovery of Titanium and Effective Regeneration of TiO2 Photocatalysts from Spent Selective Catalytic Reduction Catalysts
Sign Up to like & getrecommendations! Published in 2018 at "ACS Sustainable Chemistry & Engineering"
DOI: 10.1021/acssuschemeng.7b03038
Abstract: The extensive use of selective catalytic reduction (SCR) catalysts will afford many spent SCR catalysts. The mass fraction of the titanium component is over 80% in spent SCR catalysts, but currently, it is usually thrown… read more here.
Keywords: scr catalysts; catalytic reduction; selective catalytic; titanium ... See more keywords
Hydrometallurgical process development to recycle valuable metals from spent SCR deNOX catalyst
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DOI: 10.1038/s41598-021-01726-0
Abstract: Spent catalyst, containing vanadium and tungsten oxide in a TiO2 glass fiber matrix, pose a risk of environmental contamination due to the high toxicity of its metal oxides if leached into the soil when disposed… read more here.
Keywords: hydrometallurgical process; valuable metals; scr catalyst; spent scr ... See more keywords
A Review on Resource Utilization of Spent V-W-Ti Based Selective Catalytic Reduction Catalysts
Sign Up to like & getrecommendations! Published in 2022 at "Materials"
DOI: 10.3390/ma15227984
Abstract: To address the environmental pollution caused by nitrogen oxides, V2O5-WO3/TiO2 is widely used as a catalyst based on selective catalytic reduction (SCR) technology. However, spent SCR catalysts pose a potential hazard to the environment due… read more here.
Keywords: spent scr; based selective; selective catalytic; scr catalysts ... See more keywords