Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal JURNAL SIMETRIK Jurnal Riset Teknologi Pencegahan Pencemaran Industri Eksplorium : Buletin Pusat Pengembangan Bahan Galian Nuklir
afandi, idris herkan
Unknown Affiliation
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
The Effect of Kaolin Addition as a Binder in Making Pellets Iron Concentrate Septiansyah, Sy.Indra; Afandi, Idris Herkan; Herman, Herman
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol. 15 No. 2 (2024): November
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2024.v15.no2.p63-73

Abstract

Pellets iron concentrate are formed from fine particles in the form of iron ore concentrate or iron sand after the ore has undergone the agglomeration stage and taken the shape of tiny, marble-like lumps. Iron pellets are also an important raw element in the steelmaking process. The physical, chemical, and metallurgical standards for iron pellet quality vary depending on the specific processing method used to create the pellets. The purpose of this research is to make iron pellets using iron sand derived from zircon sand processing byproducts by adding binders. There are three primary phases in the production of iron pellets, Mixing of iron pellet materials, the second balling process and the third induration process. Materials needed to make iron pellets include water, binder, and iron ore/sand. Typically, bentonite, limestone, and/or similar compounds are used as binder. However, in this study kaolin was used as a substitute for commercial binders with variations of (5; 10; 15 and 20%) binder. Based on the test results kaolin greatly affects the hardness of iron pellets. This can be seen from the results of the Compression Strength Test an average of 107.8 to 156.9 N/Pellet or the equivalent of 11 to 16 Kg/Pellet and the results of the drop test pellets broke at a height of 3 - 4 meters. This indicates that the pellets contain good qualities and exhibit resistance to impacts or mechanical pressure that may arise during transportation or utilization.
Activation of Kaolin Minerals from Ketapang Regency as Cu Metal Adsorbent Material Septiansyah, Sy. Indra; Afandi, Idris Herkan; Dirtami, Retno Tasya
EKSPLORIUM Vol. 43 No. 2 (2022): NOVEMBER 2022
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/eksplorium.2022.43.2.5802

Abstract

Kaolin is a term given to a group of phyllosilicate minerals whose layers have a 1:1 structure with Al2Si2O5(OH)4 composition. This type of kaolin phyllosilicate mineral is commonly known as a clay mineral. The kaolin clay group consists mainly of the kaolinite mineral or better known as white clay. Kaolin is widely applied in industries such as paper, ceramics, rubber, plastic, paint, fiberglass, cosmetics, etc. The processing of kaolin as an adsorbent can be carried out using physical activation, where the kaolin is washed and separated from the impurities and dried into a powder. Then the chemical activation of kaolin will go through a leaching process using HCl with optimal concentrations aimed at separating kaolin from impurities that are still chemically bound to kaolin. The results of the characteristics show recovery of 71.42% to 81.2% and moisture content <2%. The chemical composition of kaolin containing SiO2 was 53.32–67.32%, Al2O3 was 28.22–30.47%, Fe2O3 was 1.32%, CaO was 0.03%, MgO was 0.20%, MnO2 was 0.01%, K2O of 0.86%, NaO of 0.01%, Cr of 0.01%, LOI of 11.03%. The adsorption test results on Cu metal in CuSO4 solution showed the absorption of 62–93% of Cu metal which was adsorption.
Perbandingan Sampling dengan Metode Test Pit dan Pengeboran pada Endapan Bauksit PT. Prima Abadi Mineral Kabupaten Ketapang Provinsi Kalimantan Barat afandi, idris herkan
JURNAL SIMETRIK Vol 9 No 1 (2019): Jurnal Simetrik (Sipil, Mesin, Listrik)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M) Politeknik Negeri Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/js.v9i1.207

Abstract

Resource estimation are related to the quality of samples in the field. One of sampling bauxite method is a test pit. However, sufficiently deep deposition conditions become a constraint related to security in retrieval by this method. Therefore, researchers suspect that bauxite sampling can also be done by drilling with results that are not much different from making test pits. the aim of this study was to compare bauxite sampling with with test pits and drilling seen from the engineering work, cost efficiency, time and quality of the sampling produced.The research was conducted at PT. Harita Prima Abadi Mineral Ketapang by observing the sampling process and interviewing workers. It was obtained that the cost of making 1 (one) test pit was Rp. 5.000.000, and the cost of 1 (one) drilling is Rp. 2.000.000. The time fore making a test pit to minimal 3 workers is 6-8 hours and the drilling time to minimal 4 workers is 3-4 hours. The quality of bauxite samples from test pit is very good, the umber of samples can be taken as needed. While the quality of drilling samples is CF cannot be calkulated and bauxite samples obtained have a small size and a little amount. 
Co-Authors Dirtami, Retno Tasya Septiansyah, Sy. Indra Septiansyah, Sy.Indra Syamsiar, Syamsiar