Table · dataset · 2026
<b>RSM-Optimized Microwave Leaching for Enhanced Copper and Cobalt Recovery from Chalcopyrite and Heterogenite.</b>
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<p dir="ltr">This study investigates the simultaneous microwave-assisted acid leaching of copper and cobalt from a binary chalcopyrite (CuFeS₂)-heterogenite (Co₂O₃) system.
Description
Statistical optimization using Taguchi methodology and Analysis of Variance (ANOVA) was employed to evaluate the influence of key operational parameters: microwave power (140–560 W), irradiation time (4–10 min), sulfuric acid concentration (50–95 g/L), and the chalcopyrite/heterogenite stoichiometric ratio (1:0 to 1:3).
A robust L16 (4⁴) orthogonal array guided the experimental design. The results identified the chalcopyrite/heterogenite ratio as the most significant parameter, contributing 78.06% and 86.61% to the variance in copper and cobalt dissolution, respectively. Optimal conditions for copper extraction were 560 W, 10 min, 50 g/L H₂SO₄, and a 1:2 ratio, yielding 54.64% Cu.
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For cobalt, optimal conditions were 420 W, 10 min, 95 g/L H₂SO₄, and a 1:1 ratio, yielding 56.74% Co. By extending the irradiation time to 25 minutes at 420 W, leaching efficiencies increased significantly to 67.76% for copper and 81.04% for cobalt. The study proposes a synergistic leaching mechanism governed by an Fe³⁺/Fe²⁺ redox cycle, enhanced by microwave irradiation.
This work demonstrates the potential of microwave-assisted leaching as an efficient and selective method for recovering valuable metals from complex sulfide-oxide ores.</p>
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Where it is published
- DOI doi.org/10.6084/m9.figshare.34004127.v1 ↗
DOI / persistent id · from figshare com
Catalogue records · 1
- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
metadata API · from figshare com
Topics
Provenance · 4 source records, 17 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| HKU DataHub · removed upstream | oai:figshare.com:article/34004127 | 13 d ago | JSON v1 |
| figshare | oai:figshare.com:article/34004127 | 13 d ago | JSON v1 |
| Loughborough Research Repository · removed upstream | oai:figshare.com:article/34004127 | 12 d ago | JSON v1 |
| UP Research Data Repository · removed upstream | oai:figshare.com:article/34004127 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].anzsrc:field:401903 | mapping · figshare com | vocabulary-mapper@1.0.0 | keywords['Hydrometallurgy'] |
| concepts[field].local:field:astronomy | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:chemistry | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:computer-science-ai | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:economics-finance | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:engineering | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:humanities | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:medicine-health | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:ocean-atmospheric | mapping · figshare com | connector:figshare_com@1.0.0 | |
| concepts[field].local:field:social-science | mapping · figshare com | connector:figshare_com@1.0.0 | |
| description | source · figshare com | connector:figshare_com@1.0.0 | /metadata/dc/description |
| license | source · figshare com | connector:figshare_com@1.0.0 | /metadata/dc/rights |
| publication_date | source · figshare com | connector:figshare_com@1.0.0 | |
| title | source · figshare com | connector:figshare_com@1.0.0 | /metadata/dc/title |