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Bakri, Suriyanto
Program Studi Teknik Pertambangan, Fakultas Teknologi Industri, Universitas Muslim Indonesia
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Pengaruh Ukuran Butir terhadap Recovery MnO pada Pemisahan Bijih Mangan Oksida Menggunakan Magnetic Separator Bakri, Suriyanto; Juradi, Muhammad Idris; Nurhawaisyah, Sitti Ratmi; Furkani, Dian
Jurnal Riset Teknik Pertambangan Volume 5, No. 2, Desember 2025, Jurnal Riset Teknik Pertambangan (JRTP)
Publisher : UPT Publikasi Ilmiah Unisba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/jrtp.v5i2.7562

Abstract

Abstract. Indonesia has considerable manganese ore reserves, particularly in South Sulawesi, such as in Barru and Bone Regencies. However, most of these manganese ores still contain many impurities and have relatively low MnO content. Various beneficiation methods have been studied in recent years. This study aims to examine the effectiveness of separating manganese oxide ore using a magnetic separator with varying particle sizes. This study aims to evaluate the effect of particle size variation on the separation of manganese oxide (MnO) ore from the Ponre area, using a magnetic separator method with a primary focus on determining the MnO mineral content and recovery in each particle size fraction after the magnetic separation process. The research method used manganese ore samples that had been dried and crushed using a jaw crusher and roll crusher. The samples were then ground using a ball mill to obtain the appropriate particle size fractions. For separation purposes, the samples were classified into several size fractions: +80 mesh; -80 +100 mesh; -100 +150 mesh and -150+200 mesh. The results of manganese oxide (MnO) ore separation show that finer particle sizes do not increase MnO mineral content, nor do they increase recovery rates. Optimum recovery is achieved with MnO mineral content of 49.78% and only a 3.09% increase in MnO content for particle sizes of -100+150 mesh. Abstrak. Indonesia memiliki cadangan bijih mangan yang cukup besar, khususnya di wilayah Sulawesi Selatan seperti Kabupaten Barru dan Kabupaten Bone. Namun demikian, sebagian besar bijih mangan tersebut masih mengandung banyak mineral pengotor, serta memiliki kadar MnO yang relatif rendah. Berbagai metode benefisiasi telah dikaji dalam beberapa tahun terakhir. Penelitian ini bermaksud untuk mengkaji efektivitas pemisahan bijih mangan oksida menggunakan magnetic separator dengan variasi ukuran butir. Penelitian ini bertujuan untuk mengevaluasi pengaruh variasi ukuran butir terhadap hasil pemisahan bijih mangan oksida (MnO) asal daerah Ponre, menggunakan metode magnetic separator dengan fokus utama untuk mengetahui kadar dan recovery mineral MnO pada setiap ukuran fraksi partikel setelah proses pemisahan magnetik. Metode penelitian menggunakan sampel bijih mangan yang telah kering dihancurkan menggunakan jaw crusher dan roll crusher. Selanjutnya digerus menggunakan ball mill hingga diperoleh fraksi ukuran partikel yang sesuai. Untuk keperluan pemisahan, sampel diklasifikasikan menjadi beberapa fraksi ukuran: +80 mesh; -80 +100 mesh; -100 +150 mesh dan -150+200 mesh. Hasil pemisahan bijih mangan oksida (MnO) menunjukkan bahwa ukuran fraksi partikel yang semakin halus tidak memberikan kadar mineral MnO semakin meningkat dan begitupun juga dengan recovery yang didapatkan. Recovery optimum diperoleh kadar mineral MnO sebesar 49,78% dengan hanya diperoleh peningkatan kadar MnO sebesar 3,09% pada ukuran fraksi partikel -100+150 mesh.
Co-Authors Abdul Salam Munir Abdullah, Muh. Agung Adrianto Budiman, Agus Agus A Budiman Alam Budiman Thamsi Aldi Suryadi Alfian Nawir Alfian Nawir Alimuddin . Andi Artiningsih Andi Fahdli Heriansyah Angga Mulia, Muhammad Ilham Anshariah Anshariah Ardana, Muhammad Fabio Ardana, Rifal Arham Arif Nurwaskito Arif Nurwaskito Arif Nurwaskito Arifin, Mubdiana Arman, Muh Aulia, Rizky Nurul Baehaqi Bakri, Hasbi Bakri, Hasbi Basmuddin, Abdul Azis Budiman, Agus Ardianto Chalik, Citra Aulian Citra Aulia Khalik Citra Aulian Chalik Dewy Kumala Tehuayo Dian Safitri Edy Sanwani F. Firdaus Fadli Heriansyah, Andi Febrianty, Vanda Firdaus Firdaus F Firman Firman Firman Nullah Yusuf Fitria, Ade Nurul Furkani, Dian Gaffar, Abd Habibie Anwar Habiebie Anwar Harwan Harwan Harwan, Harwan Hasbi Bakri Idris Juradi, Muhammad Iksan, Muh. Imam Riswandi Jamal Rauf Husain Jefri, J Kurnia Ningsi Majid, Rafdi Abdul Miftah Farid Mochammad Imron Awalludin Mohammad Iqbal Muh Arman Muhammad Ainul Az Muhammad Anas Muhammad Aswadi Muhammad Fajrul Muhammad Rifki Nisardi Muhdi, Irawan Mundiana, Arifin Mursit, Mursalat Nawir, Alfian Nur Asmiani Nurhalima Nurhawaisyah, Sitti Ratmi Nurhawaisyah, Sitti Ratmi Nurliah Jafar Nurliah Jafar, Nurliah Nurmalasari Nurmalasari Nurmalasari Nurwaskito, Arif oktaviani oktaviani oktaviani Prasetyawati Umar, Emi Prayitna, Yusri Rahmat Agam Putra Ratmi Nurhawaisyah, Sitti Sitti Ratmi Nurhawaisyah Sitti Riatmi Nurhawaisyah Sri Widodo Suaedi Syam, Nur Ilahi Syamsul Bakhri Syukrika Putri Takur, Takur Utami, Hesti Wakila, Muhammad Hardin Zalsabila, Zalwa Zulfadli Zulfadli Zulkarnaen, Dina