Structure · dataset · 2026
Acid Leaching for Carbon Sequestration with Prospects for Critical Metal Recovery
Listed in Loughborough Research Repository and GRANTS Data and UP Research Data Repository — shown once because both records carry DOI 10.1021/acs.est.6c02916.s002
Reducing carbon emissions and supplying critical metals for the green energy transition are essential to limiting global warming to below 1.5 °C. Here, we propose heap leaching ultramafic material with sulfuric acid followed by sequential precipitation for nickel recovery and carbon sequestration.
Description
Ultramafic materials were subjected to benchtop-scale acid leaches using 0.08–0.8 M H<sub>2</sub>SO<sub>4</sub>. The leachates were combined with NaOH to precipitate Ni (oxy)hydroxide minerals and then with NaOH + Na<sub>2</sub>CO<sub>3</sub> to precipitate Mg carbonate minerals.
The carbon sequestration potential of each sample and the efficiency of each experimental stage were calculated to estimate carbon sequestration using these techniques. The acid leaching released 2–57% of the Mg<sup>2+</sup> along with 6–64% of the Ni<sup>2+</sup> into the leachate, depending on acid strength and tailings mineralogy, while carbonation precipitated up to 95% of the dissolved Mg<sup>2+</sup> and 90% of the CO<sub>3</sub><sup>2–</sup> + HCO<sub>3</sub><sup>–</sup> in solution, depending on initial Mg<sup>2+</sup> concentrations.
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Techno-economic analysis demonstrates that treatment cost and Ni production are the most important factors determining the profitability of the process, with CO<sub>2</sub> removal being less important due to the relatively low value of carbon credits compared to Ni, but still contributing to the sustainability of this process.
Links
Where it is published
- DOI doi.org/10.1021/acs.est.6c02916.s002 ↗
DOI / persistent id · from repository lboro ac uk
Catalogue records · 1
- OAI-PMH record api.figshare.com/v2/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Af… ↗
metadata API · from repository lboro ac uk
Topics
- From keywords
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Provenance · 3 source records, 40 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| Loughborough Research Repository | oai:figshare.com:article/34057080 | 8 d ago | JSON v1 |
| GRANTS Data | oai:figshare.com:article/34057080 | 8 d ago | JSON v1 |
| UP Research Data Repository | oai:figshare.com:article/34057080 | 8 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].anzsrc:field:440710 | mapping · researchdata up ac za | vocabulary-mapper@1.0.0 | keywords['Science Policy'] |
| concepts[field].anzsrc:field:440710 | mapping · repository lboro ac uk | vocabulary-mapper@1.0.0 | keywords['Science Policy'] |
| concepts[field].anzsrc:field:440710 | mapping · grantsdata jst go jp | vocabulary-mapper@1.0.0 | keywords['Science Policy'] |
| concepts[field].anzsrc:group:3103 | mapping · repository lboro ac uk | vocabulary-mapper@1.0.0 | keywords['Ecology'] |
| concepts[field].anzsrc:group:3103 | mapping · grantsdata jst go jp | vocabulary-mapper@1.0.0 | keywords['Ecology'] |
| concepts[field].anzsrc:group:3103 | mapping · researchdata up ac za | vocabulary-mapper@1.0.0 | keywords['Ecology'] |
| concepts[field].anzsrc:group:3105 | mapping · researchdata up ac za | vocabulary-mapper@1.0.0 | keywords['Genetics'] |
| concepts[field].anzsrc:group:3105 | mapping · repository lboro ac uk | vocabulary-mapper@1.0.0 | keywords['Genetics'] |
| concepts[field].anzsrc:group:3105 | mapping · grantsdata jst go jp | vocabulary-mapper@1.0.0 | keywords['Genetics'] |
| concepts[field].local:field:chemistry | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:chemistry | mapping · researchdata up ac za | connector:researchdata_up_ac_za@1.0.0 | |
| concepts[field].local:field:chemistry | mapping · grantsdata jst go jp | connector:grantsdata_jst_go_jp@1.0.0 | |
| concepts[field].local:field:computer-science-ai | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · grantsdata jst go jp | connector:grantsdata_jst_go_jp@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · researchdata up ac za | connector:researchdata_up_ac_za@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:economics-finance | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:economics-finance | mapping · grantsdata jst go jp | connector:grantsdata_jst_go_jp@1.0.0 | |
| concepts[field].local:field:economics-finance | mapping · researchdata up ac za | connector:researchdata_up_ac_za@1.0.0 | |
| concepts[field].local:field:energy | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:energy | mapping · grantsdata jst go jp | connector:grantsdata_jst_go_jp@1.0.0 | |
| concepts[field].local:field:energy | mapping · researchdata up ac za | connector:researchdata_up_ac_za@1.0.0 | |
| concepts[field].local:field:engineering | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:engineering | mapping · researchdata up ac za | connector:researchdata_up_ac_za@1.0.0 | |
| concepts[field].local:field:humanities | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:humanities | mapping · researchdata up ac za | connector:researchdata_up_ac_za@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · grantsdata jst go jp | connector:grantsdata_jst_go_jp@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · researchdata up ac za | connector:researchdata_up_ac_za@1.0.0 | |
| concepts[field].local:field:materials-science | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:mathematics-statistics | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:medicine-health | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:psychology-behavioral | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:social-science | mapping · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| concepts[field].local:field:social-science | mapping · researchdata up ac za | connector:researchdata_up_ac_za@1.0.0 | |
| description | source · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | /metadata/dc/description |
| license | source · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | /metadata/dc/rights |
| publication_date | source · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | |
| title | source · repository lboro ac uk | connector:repository_lboro_ac_uk@1.0.0 | /metadata/dc/title |