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All Journal Kuriositas: Media Komunikasi Sosial dan Keagamaan Jurnal Sains Materi Indonesia
Saudi
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Religion Humanities Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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An Enhanced Nickel Recovery from Mixed Hydroxide Precipitate Through Selective Leaching with KMnO4 Oxidant Gumelar, Muhammad Dikdik; Rahayu; Saputra; Agustanhakri; Husin; Andrameda; Taqwatomo; Putra; Indrijarso; Saudi; Indriasari; Arfiana; Yuliani; Mumtaz; Mirahati
Jurnal Sains Materi Indonesia Vol. 26 No. 1 (2024): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jsmi.2024.3136

Abstract

Mixed Hydroxide Precipitate (MHP), a metal precipitate with the dominant nickel and cobalt content in hydroxide compounds, can be leached as a lithium battery precursor. In this study, KMnO4 was used as an oxidant agent to increase the solubility of Ni and Co. The variation of the sulfuric acid concentration (0.5 - 1.5 M) as a leachate reagent, the concentration of KMnO4 (2.5 - 7.5 g/L), and the selective leaching temperature (60 - 80°C) were investigated. Solvent extraction using CYANEX 272 and D2EHPA was performed to separate the Ni, Co, and Mn. Atomic Absorption Spectrometry (AAS), Inductively coupled plasma mass (ICP-OES), and X-ray Fluorescence (XRF) were used to analyze the chemical compositions. At the same time, crystallographic analysis was observed with X-Ray Diffraction. It was observed that potassium permanganate increased the dissolution of Ni and Co to 91.3% and 85.4% but decreased the dissolution of Mn (37.53%) under the following conditions: 1.75 M sulfuric acid, 7.5 g/L potassium permanganate, and 60°C temperature. High purity of nickel crystal (99.64%) was observed with spontaneous nucleation due to the supersaturated nickel solution after solvent extraction with CYANEX 272. Thus, using permanganate ion as selective leaching of Ni and Co from Mn is promising.
KONSEP HUKUM ISLAM DALAM MEWUJUDKAN STABILITAS DAN PERUBAHAN DALAM MASYARAKAT Bahar, Sunuwati; Saudi; Luthfiah; Kurniati; Musyahid, Achmad
KURIOSITAS: Media Komunikasi Sosial Keagamaan Vol 16 No 2 (2023): Kuriositas: Media Komunikasi Sosial dan Keagamaan (Sinta 3)
Publisher : LPPM IAIN Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35905/kur.v16i2.6243

Abstract

Sharia is a system of laws which has been in force for millennia, whereas jurisprudence specifies the specific formulation of Islamic law to be implemented on an individual case at a particular place and time. Both are distinguishable, but they're inseparable. In order to avoid confusion as to the meaning of Islamic law, It is suggested that the meaning of Islamic law itself be renewed either as a result of teaching or as a consequence of interpretation, interpretation, or thought of the mujtahids. In this study, qualitative descriptive was used. Interviews, observation, and documentation were used to gather data. Data gathering, data reduction, data presentation, and data conclusions are all used in this study's data analysis methodologies. The findings demonstrated that, if Islamic law has grown to be regarded as necessary for a society to maintain its stability, alterations to the law may result in social transformation. Islamic law's goal and essence are reflected in the notion of legal transformation it has brought about.
Co-Authors Achmad Musyahid, Achmad Agustanhakri Andrameda Arfiana Bahar, Sunuwati Gumelar, Muhammad Dikdik Husin Indriasari Indrijarso Kurniati Luthfiah Mirahati Mumtaz Putra Rahayu Saputra Taqwatomo YULIANI