2019
DOI: 10.1007/s10973-019-08233-5
|View full text |Cite
|
Sign up to set email alerts
|

Thermochemical treatment of platinum group metal tailings with ammonium salts for major element recovery

Abstract: It was recently demonstrated that the extraction of major elements from South African Platinum Group Metals (PGM) tailings can be achieved via thermochemical treatment with ammonium sulphate followed by aqueous dissolution. The current study uses the insight gained from the previous work and investigates and compares major element extraction efficiencies obtained using ammonium sulphate and three other ammonium salts (ammonium bisulphate vs ammonium chloride vs ammonium nitrate) as extracting agents at five di… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1
1

Citation Types

0
0
0

Year Published

2020
2020
2024
2024

Publication Types

Select...
4

Relationship

1
3

Authors

Journals

citations
Cited by 4 publications
(3 citation statements)
references
References 40 publications
0
0
0
Order By: Relevance
“…It consisted of unreacted, irregularly-shaped talc-rich particles similar to those found in TalcHCl, which were surrounded by numerous globular structures (Figure 5b). These globular particles were different from the perfectly formed hexagonal structures of metal-and ammonium-metal sulphate species reported previously (Doucet et al, 2016;Mohamed et al, 2016Mohamed et al, , 2019. They were most likely precursors to similar hexagonal structures, but had nevertheless developed crystalline lattices that could be identified by XRD; longer thermochemical reactions may have induced the growth and conversion of the globular particles into fully-shaped hexagons.…”
Section: Reaction Of Talchcl With Ammonium Sulphatecontrasting
confidence: 76%
See 2 more Smart Citations
“…It consisted of unreacted, irregularly-shaped talc-rich particles similar to those found in TalcHCl, which were surrounded by numerous globular structures (Figure 5b). These globular particles were different from the perfectly formed hexagonal structures of metal-and ammonium-metal sulphate species reported previously (Doucet et al, 2016;Mohamed et al, 2016Mohamed et al, , 2019. They were most likely precursors to similar hexagonal structures, but had nevertheless developed crystalline lattices that could be identified by XRD; longer thermochemical reactions may have induced the growth and conversion of the globular particles into fully-shaped hexagons.…”
Section: Reaction Of Talchcl With Ammonium Sulphatecontrasting
confidence: 76%
“…Flotation (Ahmed et al, 2007) • No chemical changes occur and Marruzzo, 1992;Hojamberdiev et al, 2010) • Reduces the iron content Chlorination (Orosco et al, 2011) • Removes Fe2O3 efficiently (Wu et al, 2014;Doucet et al, 2016), laterite nickel ore (Li et al, 2018), PGM tailings (Mohamed et al, 2016(Mohamed et al, , 2019, and bauxite residue (Borra et al, 2016). This process can also be successfully applied for the extraction of magnesium from serpentinite rocks in the context of CO2 mineral sequestration (Nduagu et al, 2012).…”
Section: Purification Methods Advantages Disadvantagesmentioning
confidence: 99%
See 1 more Smart Citation