| Autor: |
Michael Ambarita, Yustina M. Pusparizkita, Wolfgang W. Schmahl, Ghani Reswara, Mileno M. Putra, M. Danny Pratama Lamura, J. Jamari, Athanasius P. Bayuseno |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Case Studies in Chemical and Environmental Engineering, Vol 10, Iss , Pp 100998- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2666-0164 |
| DOI: |
10.1016/j.cscee.2024.100998 |
| Popis: |
A substantial amount of dry solid waste residues in Indonesia produced during the extraction of asphalt-rock bitumen offers the potential for calcium recovery for reducing CO₂ emissions toward value-added carbonate minerals via indirect mineral carbonation. This study used the residue by crushing and calcining at 900 °C for 5 hours, leached with 2 M HCl and 1 M H2SO4 at 60 °C to form a calcium-rich solution, and mixed with NH4HCO3 at a pH of 11.2–12 to precipitate calcium carbonate (PCC) at varying 30–70 °C. The PCC product has substantial calcite and small vaterite with spherical morphology, potentially various applications in paper and plastic-making industries. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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