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All Journal Jurnal Rekayasa Proses
Yuda, Aulia Pertiwi Tri
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Chemical Engineering, Chemistry & Bioengineering

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Nickel recovery from nickel-containing spent catalyst using atmospheric leaching and oxalate precipitation Widi Astuti; Yuniati, Mutia Dewi; Yuda, Aulia Pertiwi Tri; Sumardi, Slamet; Dewi, Jilda Sofiana; Wanta, Kevin Cleary; Petrus, Himawan Tri Bayu Murti
Jurnal Rekayasa Proses Vol 19 No 2 (2025): Volume 19, Number 2, 2025
Publisher : Jurnal Rekayasa Proses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.17589

Abstract

A study has been done to investigate and optimize the recovery of nickel from nickel-containing spent catalyst through sulfuric acid (1 - 2 mol/L) atmospheric leaching in different operation conditions. From the leaching experiments, it was possible to extract 77.95% nickel under the conditions of 2 mol/L H2SO4, reaction time of 5 h, 5% pulp density, and temperature of 80°C. In the next step Ni was selectively precipitated from a sulfuric acid-leached solution using 1 mol/L oxalic acid. The nickel content in the product was 97.29% Ni. Based on the study, sulfuric acid was found to be a suitable leaching agent to extract Ni from the nickel-containing spent catalyst. The study also indicated the effective extraction and recovery of nickel which was well supported by characterization studies using XRD technique.
Co-Authors Dewi, Jilda Sofiana Himawan Tri Bayu Murti Petrus Kevin Cleary Wanta Slamet Sumardi, Slamet Widi Astuti Yuniati, Mutia Dewi