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Al Jalali Muhammad
Physics Department, Halu Oleo University
Astronomy Earth & Planetary Sciences Energy Physics

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Ekstraksi Nickel Laterite Ore dengan Metode Leaching Berbantu Microwave Muhammad Al Rasyid; Al Jalali Muhammad; Yumnawati; Ismail Saleh; La Ode Muh. Iksan Juarzan; Adrian Rahmat Nur
Jurnal Aplikasi Fisika Vol. 21 No. 1 (2025): Februari 2025
Publisher : Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62749/jaf.v21i1.p1-4

Abstract

Umumnya, microwave telah banyak digunakan dalam proses pengolahan makanan. Namun, seiring dengan perkembangan ilmu pengetahuan dan teknologi, saat ini microwave telah dieksplorasi untuk pemanfaatannya dalam pengolahan material. Penelitian ini memanfaatkan teknik pemanasan gelombang mikro untuk membantu proses pelindian nikel pada tekanan atmosfer. Bijih dengan penambahan asam sulfat dipanaskan dengan microwave. Daya microwave divariasikan untuk mengetahui pengaruh daya microwave terhadap laju pelindian nikel. Berdasarkan analisis EDX, terjadi peningkatan nikel yang tercuci sesuai dengan peningkatan daya microwave. Sebanyak 90,46% nikel berhasil diekstraksi pada daya microwave 800 watt selama 6 menit.
Depth-Dependent Distribution of Nickel (Ni) and Silica (SiO2) in Laterite Nickel Ore Aslan Ndita; Al Jalali Muhammad
Jurnal Aplikasi Fisika Vol. 21 No. 02 (2025): Agustus 2025
Publisher : Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Halu Oleo

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Abstract

This study investigates the vertical distribution of nickel (Ni) and silica (SiO2) concentrations within soil profiles at depths ranging from 45 cm to 1600 cm. Soil samples were systematically collected and analyzed to determine their elemental composition. The results showed that the maximum Ni concentration of 1.15% was found at a depth of 1150 cm, while the lowest concentration of 0.21% occurred at 1600 cm. In contrast, the concentration of SiO2 increased with depth, reaching a peak of 44% at 1500 cm and the lowest value of 0.2% at 45 cm. These contrasting distribution patterns suggest different geochemical behaviors and mobility of Ni and SiO2, which are likely influenced by differential weathering intensity and mineralogical transformations within the soil horizons. The findings provide important insights into the geochemical processes affecting element partitioning in lateritic soil profiles and have significant implications for mineral exploration and environmental studies.
Co-Authors Adrian Rahmat Nur Aslan Ndita Ismail Saleh La Ode Muh. Iksan Juarzan Muhammad Al Rasyid Yumnawati