cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Bachtiar Effendi
Contact Email
bachtiareaje@gmail.com
Phone
+6222-6030483
Journal Mail Official
imjjournal@gmail.com
Editorial Address
Jl. Jenderal Sudriman No. 623 Bandung 40211
Location
Kota bandung,
Jawa barat
INDONESIA
Indonesian Mining Journal
Published by Balai Besar Pengujian Mineral dan Batubara tekMIRA
ISSN : 08549931     EISSN : 25278797     DOI : 10.30556/imj
Core Subject : Science, Social, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Environmental Science Materials Science & Nanotechnology
This Journal is published periodically two times annually : April and October, containing papers of research and development for mineral and coal, including exploration, exploitation, processing, utilization, environment, economics and policy. The editors only accept relevant papers with the substance of this publication.
Arjuna Subject : Energi (semua kategori) - Energi (Lain-Lain)
Articles 269 Documents
 23   24   25   26   27 
TEKNO EKONOMI PROSES DAUR ULANG ANODA GRAFIT BATERAI LITHIUM-ION KENDARAAN LISTRIK Agus Miswanto; Tatang Wahyudi; Agus Prakosa; David Candra Birawidha
Indonesian Mining Journal Vol 26 No 2 (2023): Indonesian Mining Journal, October 2023
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol26.No2.2023.1528

Abstract

Graphite is the primary material for battery anodes used in electronic devices such as cell phones, laptops, and electric vehicles. Exploiting natural graphite in Indonesia is still in the exploration stage. The ever increasing demand for energy storage devices poses challenges in producing battery-grade graphite. One possible approach is to recycle the graphite anode (AG) from used Lithium-ion Batteries (LIB) into battery components. By utilizing waste as a raw material, production costs are lower as well as the use of LIB becomes more sustainable. This study discusses the techno-economics of AG recycling from electric vehicle (EV) LIBs. Secondary data is used from various research reports, journals, and books published through the official website as references and assumptions in calculations and analysis. Mechanical separation to remove plastic components, washing with organic solvents (using dimethyl carbonate-DMC) and using dimethyl carbonate (DMC) and N-methyl-2-pyrrolidone (NMP), then washing process with H2SO4 + H2O2 purifies graphite to be reused as anode material for the new LIB. Economic analysis shows that the Net Present Value is IDR 388,675,699, the Internal Rate of Return is 33.79% per year, and the Payback Period is two years and ten months. These three indicators show that the project is financially viable. The sensitivity analysis shows that it is still profitable if there is an increase in production costs of up to 20% and a decrease in selling prices of up to 20% or USD 12,000 per tonne.
PERBANDINGAN BIAYA OPERASIONAL SURFACE MINER DAN PENGEBORAN & PELEDAKAN Handayana, Raden Haris; Pratama, Panji; Lubis, Jihan Farhan; Salahudin, Sani
Indonesian Mining Journal Vol 27 No 1 (2024): Indonesian Mining Journal, April 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol27.No1.2024.1497

Abstract

The method of rock breakage is commonly blasting. A few mining companies in Indonesia with facilities near community residences use alternative methods to breaking rock; one of them is using a surface miner. Aspects considered when choosing the method include economic aspects, especially operating costs. In this study case, the size of material that can continue on the next process is ≤ 400 mm; material from surface miner production is at the target; on blasting results, the fragmentation above the target is reduced using a hydraulic breaker; the initiating systems use an electronic detonator (HEBS II) and a non-electric detonator. This difference will affect the cost of the drill and blast. Based on calculated project data, surface miner operating costs are more costly, with an operating cost per ton of USD 1.16 compared with drill and blast methods including hydraulic breaker costs on the initiation system using an electronic detonator (HEBS II) of USD 0.88 per ton and non-electric operating costs of USD 0.83 per ton.
TINJAUAN SINGKAT TENTANG METODE ADSORPSI MENGGUNAKAN BAHAN KONVENSIONAL UNTUK PENGOLAHAN AIR ASAM TAMBANG Wibowo, Yudha Gusti; Tsabitah, Natasya; Pratiwi, Cantika; Nur'ani, Herlina; Irene, Rilis; Syahnur, Mirza; Al-azizah, Putri; Yudhoyono, Aryo; Wijaya, Candra; Bonifasius; Kholivia; Dody Oktantiyo S; Anis
Indonesian Mining Journal Vol 27 No 1 (2024): Indonesian Mining Journal, April 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol27.No1.2024.1505

Abstract

Acid mine drainage (AMD) is a highly dangerous form of water pollution results from coal mining activities. AMD is characterized by its high concentration of heavy metals and low pH levels, which have been linked to various health problems, including skin disease, cancer, and poisoning. This paper presents a comprehensive review of the available information on the AMD and its alternative low-cost treatment methods. One such method is adsorption, an eco-friendly and cost-effective approach to treating the AMD. This review draws on 99 published papers as the sources that provide a comprehensive overview of the AMD sources and problems worldwide. This study explores the potential of conventional materials, such as activated carbon, biochar, and other materials for treating the AMD. A special section on conventional materials is well-detailed and provides valuable insights into their effectiveness. It is essential to explore the alternative treatment methods that are both environmentally friendly and cost-effective. This review provides valuable insights in this regard. By using the low-cost and sustainable methods, we can effectively treat AMD and reduce its impact on the environment and human health.
PENILAIAN DAN PREDIKSI JARINGAN SYARAF TIRUAN TERHADAP KECEPATAN PARTIKEL YANG DIINDUKSI PELEDAKAN - STUDI KASUS PENAMBANGAN BATUGAMPING Prastowo, Rizqi; Hendro Purnomo; Firhad Firmansyah; Ipmawan, Vico Luthfi
Indonesian Mining Journal Vol 27 No 1 (2024): Indonesian Mining Journal, April 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol27.No1.2024.1531

Abstract

In recent decades, generation of ground vibrations results from blasting activities in mining sector has been identified as a significant cause of extensive harm to nearby structures, vegetation, and individuals. Hence, it is imperative to closely monitor and accurately forecast the uncertain levels of vibration, and implement the appropriate steps to mitigate their potentially harmful impact. The objective of this study was to establish a correlation between the peak particle velocity and the various parameters that influence it. This study employed the deployment of the artificial neural network approach to assess and forecast the uncertain ground vibrations. In this study, a multilayer perception neural network with three layers and a feed-forward back-propagation architecture was employed. The network consisted of five input parameters, namely the distance from the blast face, maximum charge per delay, spacing, burden, and depth hole. The output of interest was the peak particle velocity. The neural network was trained using the Levenberg–Marquardt algorithm, and the training dataset comprised 29 experimental records and blast event data obtained from the limestone mine in Indonesia. In order to assess the effectiveness and the precision of the artificial neural network model that was created, a total of four conventional predictor models were utilized. These models were proposed by reputable sources such as the US Bureau of Mines, Ambraseys–Hendron, Langefors–Kihlstrom, and the Bureau of Indian Standards. The results collected from the demonstrate study show that the artificial neural network model suggested in this research has the ability to provide more precise estimations of ground vibrations in comparison to existing conventional prediction models. The artificial neural network model yielded a coefficient of determination (R2) of 0.9332 and a root mean square error (RMSE) of 0.4763.
DAMPAK PENINGKATAN PANAS DAN JENIS REDUKTAN TERHADAP SAPROLIT: STUDI PENDAHULUAN Bahfie, Fathan; Manaf, Azwar; Astuti, Widi; Nurjaman, Fajar; Prasetyo, Erik; Susanti, Diah; Sipahutar, Wahyu Solafide
Indonesian Mining Journal Vol 27 No 1 (2024): Indonesian Mining Journal, April 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol27.No1.2024.1533

Abstract

Indonesia significantly contributes to the global electric vehicle battery market due to its substantial medium- and low-grade nickel reserves. This study utilized saprolitic nickel ore from Halmahera, Maluku, Indonesia. However, the research on saprolite needs some improvements due to its complex mineral composition, which affected on the roasting process significantly. Therefore, a thorough understanding of the properties of laterite ores is critically important, particularly concerning laterite pre-reduction processes. The ore was finely sieved to a particle size of less than 100 mesh and then heated at temperatures of 250, 900, and 1150°C with the variation of reductant (anthracite and palm kernel charcoal). Extensive mineralogical analysis was conducted using X-ray diffraction (XRD), X-ray fluorescence (XRF), and scanning electron microscopy with energy-dispersive spectroscopy (SEM-EDS). The analysis of saprolite showed that it contains about 1.82% nickel, 30.47% iron, 10-20% magnesium, 4.86% aluminum, and 8.1% silicon by weight. Its mineral composition is mainly 53.1% goethite, 38.3% lizardite, and 8.7% quartz. The study found that goethite in saprolite was transformed into hematite around 250°C. At 900°C, the forsterite was crystallized, and at 1150°C, the ferronickel was formed. The transformation of lizardite is important as it affected on nickel diffusion within the iron matrix, which impacted on the material's properties. A thermal upgrading method with reductants like anthracite and palm kernel charcoal was used at lower temperatures to enhance the properties of saprolite. These findings provided valuable insights into saprolite's mineralogical composition and behavior, potentially offering improvements in various industrial processes and applications.
PEROLEHAN MINERAL BESI DARI RESIDU BAUKSIT INDONESIA Sariman; Rochani, Siti; Saleh, Nuryadi; Wijayanti, Retno; Dianawati, Erika Arum
Indonesian Mining Journal Vol 27 No 1 (2024): Indonesian Mining Journal, April 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol27.No1.2024.1538

Abstract

Bauxite residue, a solid waste discharged during alumina extraction, is a hazardous material. Its disposal leads to a serious environmental issue although it contains valuable matter such as titanium, silica, rare earth elements, and high iron content (20-60%). This work aims to improve the recovery of iron content within the bauxite residue using three methods, namely direct magnetic separation, roasting followed by magnetic separation, and reduction followed by magnetic separation. Coal as a reductant and Na2CO3 and Na2SO3 as fluxes were used in the reduction process. The result of the study reveals that the direct magnetic separation produces iron concentrate with the Fe content of 53.69% and a recovery of 26.72%, while the roasting process at 900˚C and magnetic separation produces a concentrate of 54.57% Fe with a recovery of 37.33%. The best method was by reduction and magnetic separation process using 4% of Na2CO3  producing iron concentrates with a content of 63.53% Fe and recovery of 74.73%.
Index Abstrak
Indonesian Mining Journal Vol 27 No 1 (2024): Indonesian Mining Journal, April 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

PEMANFAATAN MINYAK BERAT HASIL PERENGKAHAN KATALITIK MINYAK PLASTIK POLYPROPYLENE-LOW DENSITY POLYETHYLENE UNTUK MENINGKATKAN KUALITAS LIGNIT Marlinda, Lenny; Mardhatillah; Raden Ilham; Rahmi; Muhammad Al Muttaqii
Indonesian Mining Journal Vol 27 No 2 (2024): Indonesian Mining Journal, October 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol27.No2.2024.1544

Abstract

The most obvious characteristics of lignite are its high moisture content (30-50%) and relatively low calorific value compared to other types of coal. This causes low combustion efficiency, making it not optimal for use as fuel. In this study, the slurry dewatering process was applied to coal that has a low calorific value of 3,662 cal/g and a moisture content of 37.29%. The addition effect of heavy oil from catalytic cracking of Polypropylene-Low Density Polyethylene (PP/LDPE) plastic waste pyrolysis oil on improving quality of lignite was investigated in this study. Heavy oil was used as additive. The ratio of 120 mesh lignite to heavy oil used was 100:15, 100:30, 100:45, 100:60, 100:75, and 100:90 (g/mL). Coal was carried out with a slurry dewatering process in an autoclave at various temperatures of 140 and 150 °C for 60 min. The test results obtained the highest calorific value of 6,374 cal/g and the moisture content of 2.81% for a ratio of lignite to heavy oil of 100: 45 g/mL at a temperature of 140 °C.
ESTIMASI JAMINAN PASCATAMBANG USAHA PERTAMBANGAN MINERAL BATUAN PT. X DI KABUPATEN MANOKWARI Setiawan, Arif; Imbo, Yuldi Christiani; Paradida, Yulia Putri
Indonesian Mining Journal Vol 27 No 2 (2024): Indonesian Mining Journal, October 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol27.No2.2024.1561

Abstract

PT. X is one of the companies in Manokwari that is engaged in rock mining. Currently, the company has conducted a feasibility study and has progressed to the production operation stage. Any company that aims to upgrade its license from an Exploration Mining Business License (IUP) to a Production Operation License is required to prepare a post-mining plan document, which includes post-mining financing. The amount of this financing will be deposited in a bank as a post-mining guarantee to the government. This study aims to estimate the amount of the post-mining guarantee that will be deposited on behalf of the government. To achieve this objective, the study employs an applied research method by referring to the Minister of Energy and Mineral Resources Decree No. 1827 K/30/MEM/2018. The results of this study show that the post-mining guarantee consists of direct costs amounting to IDR 92,750,110 and indirect costs amounting to IDR 15,303,768, resulting in a total post-mining cost of IDR 108,053,878 to be deposited. Based on these findings, the post-mining guarantee will not be fully paid at once, but will be divided into three installments: in the first year, IDR 55,242,545 will be deposited, followed by IDR 33,891,302 in the second year, and IDR 23,102,571 in the third year.
PERHITUNGAN KONSUMSI BAHAN BAKAR PADA HD 465 -7R MENGGUNAKAN METODE RPM MESIN DAN PENDEKATAN PER SEGMENT PADA PERUSAHAAN PERTAMBANGAN DI KALIMANTAN TIMUR Pranajiwa; Shalaho Dina Devy; Albertus Juvensius Pontus; Windhu Nugroho; Harjuni Hasan
Indonesian Mining Journal Vol 27 No 2 (2024): Indonesian Mining Journal, October 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol27.No2.2024.1578

Abstract

Fuel is usually used by engines to move or do work. In this article, the machine is a mining industry vehicle with the code HD 465 – 7R type from the Komatsu company. The vehicle is used to move overburden material from the loading area to the disposal area. Fuel consumption is usually influenced by several factors, the most influential of which are the slope of the road, the type of material used for the road, and the distance from the loading place to the dumping place. There are several methods are used to calculate fuel consumption, the most familiar of which is the vehicle working hours (hour meter) method. In this research, the calculation of fuel consumption uses engine RPM with a segment approach method taken with a segment distance of between 100 - 200 meters. The results of calculating fuel usage on the HD 465 – 7R have a figure of 51.7 liters/hour, with the actual value being 51.9 liters/hour. The conclusion of this research is that by using the engine RPM method, the results of fuel usage calculations are also close to the actual values. Testing by RPM with an hour meter is very different, where testing by RPM is based on the length of duration at that RPM number; the higher the RPM and the longer the duration of time, the greater the fuel released. This is continuous with the road segment, where an uphill road segment will definitely increase travel time due to a decrease in speed, and the RPM will increase.

Page 26 of 27 | Total Record : 269

 23   24   25   26   27 

Filter by Year

2005 2025


Reset
Filter By Issues
All Issue Vol 28 No 1 (2025): Indoneisan Mining Journal, April 2025 Vol 27 No 2 (2024): Indonesian Mining Journal, October 2024 Vol 27 No 1 (2024): Indonesian Mining Journal, April 2024 Vol 26 No 2 (2023): Indonesian Mining Journal, October 2023 Vol 26 No 1 (2023): Indonesian Mining Journal, April 2023 Vol 25 No 2 (2022): INDONESIAN MINING JOURNAL, Vol. 25 No. 2, October 2022 Vol 25 No 1 (2022): INDONESIAN MINING JOURNAL, Vol. 25 No. 1, April 2022 Vol 24 No 2 (2021): INDONESIAN MINING JOURNAL, Vol. 24 No. 2, October 2021 Vol 24 No 1 (2021): INDONESIAN MINING JOURNAL, Vol. 24 No. 1, April 2021 Vol 23 No 2 (2020): INDONESIAN MINING JOURNAL, Vol. 23 No. 2, October 2020 Vol 23 No 1 (2020): INDONESIAN MINING JOURNAL, Vol. 23 No. 1, April 2020 Vol 22 No 2 (2019): INDONESIAN MINING JOURNAL, Vol. 22 No. 2, October 2019 Vol 22 No 1 (2019): INDONESIAN MINING JOURNAL, Vol. 22 No. 1, April 2019 Vol 21 No 2 (2018): INDONESIAN MINING JOURNAL, Vol. 21 No. 2, October 2018 Vol 21 No 1 (2018): INDONESIAN MINING JOURNAL, Vol. 21 No. 1, April 2018 Vol 20 No 2 (2017): INDONESIAN MINING JOURNAL VOL. 20 NO. 2 October 2017 Vol 20 No 1 (2017): INDONESIAN MINING JOURNAL VOL. 20 NO. 1 April 2017 Vol 19 No 3 (2016): INDONESIAN MINING JOURNAL VOL. 19 NO. 3, October 2016 Vol 19 No 2 (2016): INDONESIAN MINING JOURNAL VOL. 19 NO. 2 June 2016 Vol 19 No 1 (2016): INDONESIAN MINING JOURNAL Vol. 19 No. 1 February 2016 Vol 18 No 3 (2015): INDONESIAN MINING JOURNAL Vol. 18 No. 3 October 2015 Vol 18 No 2 (2015): INDONESIAN MINING JOURNAL Vol. 18 No. 2 June 2015 Vol 18 No 1 (2015): INDONESIAN MINING JOURNAL Vol. 18 No. 1 February 2015 Vol 17 No 3 (2014): INDONESIAN MINING JOURNAL Vol. 17 No. 3 OCTOBER 2014 Vol 17 No 2 (2014): INDONESIAN MINING JOURNAL Vol. 17 No. 2 JUNE 2014 Vol 17 No 1 (2014): INDONESIAN MINING JOURNAL Vol. 17 No. 1 FEBRUARY 2014 Vol 16 No 3 (2013): INDONESIAN MINING JOURNAL Vol. 16 No. 3 OCTOBER 2013 Vol 16 No 2 (2013): INDONESIAN MINING JOURNAL Vol. 16 No. 2 June 2013 Vol 16 No 1 (2013): INDONESIAN MINING JOURNAL Vol. 16 No. 1 February 2013 Vol 15 No 3 (2012): INDONESIAN MINING JOURNAL Vol. 15 No. 3 October 2012 Vol 15 No 2 (2012): INDONESIAN MINING JOURNAL Vol. 15 No. 2 June 2012 Vol 15 No 1 (2012): INDONESIAN MINING JOURNAL Vol. 15 No. 1 February 2012 Vol 14 No 3 (2011): INDONESIAN MINING JOURNAL Vol. 14 No. 3 October 2011 Vol 14 No 2 (2011): INDONESIAN MINING JOURNAL Vol. 14 No. 2 June 2011 Vol 14 No 1 (2011): INDONESIAN MINING JOURNAL Vol. 14 No. 1 February 2011 Vol 13 No 3 (2010): INDONESIAN MINING JOURNAL Vol. 13 No. 3 October 2010 Vol 13 No 2 (2010): INDONESIAN MINING JOURNAL Vol. 13 No. 2 June 2010 Vol 13 No 1 (2010): INDONESIAN MINING JOURNAL Vol. 13 No. 1 February 2010 Vol 12 No 3 (2009): INDONESIAN MINING JOURNAL Vol. 12 No. 3 October 2009 Vol 12 No 2 (2009): INDONESIAN MINING JOURNAL Vol. 12 No. 2 June 2009 Vol 12 No 1 (2009): INDONESIAN MINING JOURNAL Vol. 12 No. 1 February 2009 Vol 11 No 3 (2008): INDONESIAN MINING JOURNAL Vol. 11 No. 3 October 2008 Vol 11 No 2 (2008): INDONESIAN MINING JOURNAL Vol. 11 No. 2 June 2008 Vol 11 No 1 (2008): INDONESIAN MINING JOURNAL Vol. 11 No. 1 February 2008 Vol 10 No 3 (2007): INDONESIAN MINING JOURNAL Vol. 10 No. 3 October 2007 Vol 10 No 2 (2007): INDONESIAN MINING JOURNAL Vol. 10 No. 2 June 2007 Vol 10 No 1 (2007): INDONESIAN MINING JOURNAL Vol. 10 No. 1 February 2007 Vol 9 No 3 (2006): INDONESIAN MINING JOURNAL Vol. 09 No. 3 October 2006 Vol 9 No 2 (2006): INDONESIAN MINING JOURNAL Vol. 09 No. 2 June 2006 Vol 9 No 1 (2006): INDONESIAN MINING JOURNAL Vol. 09 No. 1 February 2006 Vol 8 No 01 (2005): INDONESIAN MINING JOURNAL Vol. 8 No. 1 February 2005 More Issue