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All Journal TAMBANG Jurnal Teknologi Pertambangan KURVATEK Journal of Metallurgical Engineering and Processing Technology Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII
Untung Sukamto, Untung
Prodi Teknik Pertambangan, Fakultas Teknologi Mineral, UPN “Veteran” Yogyakarta, Jl. SWK 104 (Lingkar Utara), Yogyakarta 55283 Indonesia
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation

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Journal : Journal of Metallurgical Engineering and Processing Technology

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Optimization Flotation Process Using Two Types of Collectors at PT. Florrea Indonesia Triandika, Taufan; Sukamto, Untung; Sudaryanto, Sudaryanto; Amalia, Yasmina; Allya Zulfa Suratinoyo, Zahna
Journal of Metallurgical Engineering and Processing Technology Vol 4, No 2 (February 2024)
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmept.v4i2.10897

Abstract

The tailings slurry used in this research originated from company X in Kuala Lipis, Pahang, Malaysia. The primary objective of this study is to determine the percentage of recovery, concentrate content, and Au concentration ratio in the tailings slurry. The research employs a quantitative method involving flotation testing. The flotation process involved two sets of experiments: one without the FX2 collector (tests 1 and 2) and another using both the F7042W and FX2 collectors (tests 3 and 4). dxThe research findings revealed that the percentage of Au recovery in single-collector flotation using FX2 (test 1) was 56.47%, with a concentration ratio of 19.78. In test 2, it was 52.59%, with a mass concentration ratio of 21.57. Meanwhile, the percentage of Au recovery in dual-collector flotation using F7042W and FX2 (test 3) was 68.77%, with a concentration ratio of 16.55, and in test 4, it was 69.45%, with a concentration ratio of 16.93. Based on the results of this research, it can be concluded that the flotation process employing two collectors, namely F7042W and FX2, as investigated in this study, was successful because percent recovery, concentration ratio, and Au content in the concentrate compared to single collector flotation.
Analysis Effect of the Nickel Ore Reduction Process on Sulfur Fixation in Reduction Kiln #5 at PT Vale Indonesia Tbk Using Factsage Simulation Sukamto, Untung; Furrie Mutia Rahma, Aufa Asna
Journal of Metallurgical Engineering and Processing Technology Vol 5, No 1 (August 2024)
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmept.v5i1.12351

Abstract

The pyrometallurgical process which produces a product in the form of matte nickel is a nickel product that contains high sulfur so it is necessary to carry out a calcination process with the addition of sulfur and coal in the process using a reduction kiln. In order to increase the effectiveness of the process, PT Vale Indonesia Tbk's reduction kiln operations underwent several improvisations regarding the parameters used in the reduction kiln to adapt to the ore and changes to the equipment. This research aims to obtain optimal conditions for the reduction and sulfidation process to produce nickel in a reduction kiln with low fuel consumption. This research stage was carried out by making direct observations in the field as material for assessing actual conditions, then carrying out simulations using Factage software to obtain ideal conditions. Factage simulation results show an optimal calcine composition with 1.95% Ni; 25.86% Fe; 5.03%C; 63.28% Mg2Si2O6; and 3.03% Mg2SiO4 with a good calcine temperature of 717oC and federate at a kiln reduction of 767 DMT and the maximum sulfur fixation value obtained was 1.3 because sulfur and coal were added at the ideal dose, namely 9 kg/t and 35 kg/t.
Co-Authors Alfitri Rosita, Alfitri Allya Zulfa Suratinoyo, Zahna Budi, M. Sri Prasetyo Erry Sumarjono Faturrahman, M. Hafiz Furrie Mutia Rahma, Aufa Asna Kadiman, Sugiarto Labib, Hazim Haikal Mardhatila, Fitri Ayu Mirahati, Riria Zendy NURUL WULANDARI Putri, Frideni Yushandiana SUDARYANTO SUDARYANTO Triandika, Taufan Yasmina Amalia, Yasmina