2022
DOI: 10.3390/min12060701
|View full text |Cite
|
Sign up to set email alerts
|

Extraction of REEs from Blast Furnace Slag by Gluconobacter oxydans

Abstract: Granulated blast furnace slag (GGBFS) is a potential resource of rare earth elements (REEs), and due to the complex mineralogy, extraction by conventional hydrometallurgical process makes it an acid-consuming method. Bioleaching is thus investigated using a chemo-organotrophic bacterium Gluconobacter oxydans (DSMZ 46616) for REE extraction from GGBFS containing 157 ppm Ce, 90 ppm La, 71 ppm Nd and 40 ppm Er, hosted in a Ca-Al-Si matrix. The gluconic acid generation by G. oxydans was assessed for its role in RE… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1

Citation Types

0
3
0

Year Published

2022
2022
2025
2025

Publication Types

Select...
6
1
1

Relationship

0
8

Authors

Journals

citations
Cited by 9 publications
(3 citation statements)
references
References 16 publications
0
3
0
Order By: Relevance
“…Slags from the metal-processing industry are crucial to the extraction and refinement of metals created when a charge of flux material, either added to or included in the charge, reacts with unwanted minerals during extraction or smelting, or with byproducts of the oxidation of unwanted solute elements during refining [75]. Abhilash et al [76] tested the extraction of REEs from granulated blast furnace slag (GGBFS) using a chemoorganotrophic bacteria Gluconobacter oxydans. The recovery of REEs was 42% La, 56% Ce, 65% Nd, and 34% Er in 12 days.…”
Section: Recovery Methods For Rees From Srmmentioning
confidence: 99%
“…Slags from the metal-processing industry are crucial to the extraction and refinement of metals created when a charge of flux material, either added to or included in the charge, reacts with unwanted minerals during extraction or smelting, or with byproducts of the oxidation of unwanted solute elements during refining [75]. Abhilash et al [76] tested the extraction of REEs from granulated blast furnace slag (GGBFS) using a chemoorganotrophic bacteria Gluconobacter oxydans. The recovery of REEs was 42% La, 56% Ce, 65% Nd, and 34% Er in 12 days.…”
Section: Recovery Methods For Rees From Srmmentioning
confidence: 99%
“…The Generally Regarded As Safe (GRAS) acidophilic bacterium Gluconobacter oxydans [26][27][28][29] has played a significant role in bioleaching research over the past decade 14,21,[30][31][32][33] . This microbe offers a unique capability for secretion of organic acids 21,29,34 and creation of a highly acidic biolixiviant (primarily containing gluconic acid 14 ) which is particularly effective for recovering REE from sources including minerals like allanite 15 ; industrial residues like phosphogypsum 30 , red mud 35 , and blast furnace slag 36 ; and recycled materials like fluid cracking catalyst (FCC) 21 , nickel-metal-hydride (NiMH) batteries 37 , and retorted phosphor powder (RPP) 16,21,35 .…”
Section: Introductionmentioning
confidence: 99%
“…There are several methods for the extraction of REEs from solid samples, such as bioleaching [ 9 ], electrochemical extraction [ 10 ], solvent extraction [ 11 ], and sulfuric acid and fluoride solutions as extractants [ 12 ]. However, the REEs must be recovered from the liquid and concentrated after extraction from the solid to the liquid phase.…”
Section: Introductionmentioning
confidence: 99%