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All Journal Jurnal Zeolit Indonesia Jurnal Teknologi Bahan dan Barang Teknik Metalurgi
Adil Jamali
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Computer Science & IT Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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DESALINATION OF THE BRACKISH WATER USING SURFACTANT MODIFIED ZEOLITE (SMZ) Widi Astuti; Adil Jamali; Muhammad Amin
Jurnal Zeolit Indonesia Vol. 6 No. 1 (2007)
Publisher : Jurnal Zeolit Indonesia

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Abstract

The intrusion of seawater in the beach area of Bandar Lampung and the Eastern beach of Lampung causes many problems for people because it turns the water into a brackish water. The brackish water is the water whose salinity is between 0.5 ppt until 17 ppt. The brackish water cannot be used for drinking, cooking or washing because the maximum degree of salinity for such purposes is 0.5 ppt. Desalination of brackish water is a process of reducing the salinity of a brackish water. In this research, natural zeolite from Lampung was modified with surfactant to become surfactant-modified zeolite (SMZ). It was used as ion exchanger in the desalination of a brackish water. The result showed the salinity of the brackish water could be reduced to 52% from the initial value. The best results were obtained at the contact time of 4 hours and the initial salinity 0.863 ppt.
PROSES DEKARBURISASI NICKEL PIG IRON Adil Jamali; Ra Binudi; Bintang Adjiantoro
Metalurgi Vol 29, No 2 (2014): Metalurgi Vol.29 No.2 Agustus 2014
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (528.881 KB) | DOI: 10.14203/metalurgi.v29i2.287

Abstract

PENGARUH BAHAN PEREKAT DAN WAKTU REDUKSI PADA PEMBUATAN BRIKET SPONGE DARI BIJIH BESI LOKAL[Effect of Binder and Reduction Time in The Preparation of Sponge Iron Briquette from Local Iron Ore] Adil Jamali; Fiqa Rofiq Mufakhir; Muhammad Amin
Metalurgi Vol 27, No 2 (2012): Metalurgi Vol. 27 No. 2 Agustus 2012
Publisher : National Research and Innovation Agency (BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (317.212 KB) | DOI: 10.14203/metalurgi.v27i2.146

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Karakteristik Sifat Mekanik Baja Laterit Melalui Proses Pengerjaan dan Perlakuan Panas Bintang Adjiantoro; Adil Jamali; Rahardjo Binudi; Muhammad Yunan Hasbi
Jurnal Teknologi Bahan dan Barang Teknik Vol 6, No 2 (2016)
Publisher : Balai Besar Bahan dan Barang Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (773.49 KB) | DOI: 10.37209/jtbbt.v6i2.72

Abstract

Steel laterite potentially meet the national infrastructure demand that requires toughness properties because of Ni content is about 2-3%. In this study, there were five types composition of the as-cast steel laterite from decarburises Nickel Pig Iron (NPI) process. Five types of compositions as-cast steel were prepared for homogenizing process at 900 °C and subsequently hot rolled into the size 6,5 mm thick from 40 mm. Hot rolled process conducted at 980 °C with three stages of reduction. The first stage was 60%, 40% the second and last stage was 30%. Samples subsequently cooled in the air and prepared for hardness test and tensile test. Results of hot rolled process showed that the formability of steel laterite quite well with no crack during hot rolled. Increased mechanical properties of steel promoted by hot rolled process with optimum results 238,5 HB and 779 N/mm2 respectively. Metallography observation obtained show that Ni was promoted grain refining on recrystallization phenomena.Baja berbasis bijih nikel laterit berpotensi diaplikasikan dalam infrastruktur yang membutuhkan sifat tangguh karena kandungan Ni yang dimiliki yaitu sebesar 2-3%. Dalam studi ini telah dilakukan penelitian mengenai sifat mekanik terhadap lima jenis komposisi as-cast baja laterit hasil proses dekarburisasi Nickel Pig Iron (NPI).  Baja laterit hasil as-cast dengan  lima jenis komposisi terlebih dahulu dilakukan homogenisasi dengan proses anil pada suhu 900 °C. Spesimen baja kemudian dilakukan pengerolan panas hingga menjadi pelat dengan ketebalan 6 mm dari tebal awal 40 mm. Proses pengerolan dilakukan pada suhu 980 °C dengan tiga tahap reduksi yaitu 60%, 40% dan 30%. Setelah proses pengerolan panas dilakukan, pelat didinginkan di udara dan kemudian dilakukan uji kekerasan dan uji tarik. Hasil penelitian menunjukkan bahwa mampu bentuk baja laterit cukup baik dengan tidak ditunjukkannya keretakan pada sampel. Hasil uji kekerasan dan uji tarik juga menunjukkan kecenderungan peningkatan pada tiap sampel baja dengan nilai optimal mencapai 238,5 HB dan 779 N/mm2. Ditinjau dari pengamatan struktur mikro, paduan Ni memicu penghalusan butir dalam fenomena rekristalisasi.
Co-Authors Bintang Adjiantoro Fiqa Rofiq Mufakhir Muhammad Amin Muhammad Amin Muhammad Yunan Hasbi Ra Binudi Rahardjo Binudi Widi Astuti