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Bintang Adjiantoro

Pusat Penelitian Metalurgi dan Material - LIPI

Author-ID : 2794868

Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Pengaruh Waktu Pelindian pada Proses Pemurnian Silikon Tingkat Metalurgi Menggunakan Larutan HCl[Effect of Leaching Time on Purification Process of Metallurgical Grade Silicon by Using Acid Solution] Bintang Adjiantoro; Efendi Mabruri
Metalurgi Vol 27, No 1 (2012): Metalurgi Vol. 27 No. 1 April 2012
Publisher : National Research and Innovation Agency (BRIN)

IntisariPENGARUH WAKTU PELINDIAN PADA PROSES PEMURNIAN SILIKON TINGKAT METALURGI MENGGUNAKAN LARUTAN HCl. Proses pemurnian silikon tingkat metalurgi (MG-Si)dengan menggunakan metoda pelindian asam pada konsentrasi 2,45mol/L HCl telah dilakukan dengan memvariasikan waktu pelindian pada temperatur didih (±100 °C) dan gerakan pengadukan mekanik. Hasil penelitian menunjukkan bahwa proses pelindian MG-Si dengan HCl dapat digunakan untuk menghilangkan unsur pengotor logam. Persentase hasil efisiensi ekstraksi dari unsur pengotor yang terkandung di dalam MG-Si dengan pelarutan HCl masing-masing mencapai 99,996 % untuk Al, 98,247 % untuk Ti dan 98,491 % untuk Fe pada waktu pelindian 120 jam. Sedangkan efisiensi larutan HCl terhadap unsur pengotor dengan gerakan pengadukan mekanik mencapai 99,04 %.Kata kunci : Silikon tingkat metalurgi, Pemurnian dengan proses kimia, Pelindian asam, PengotorAbstractEFFECT OF LEACHING TIME ON PURIFICATION PROCESS OF METALLURGICAL GRADE SILICON BY USING ACID SOLUTION. The purification process of metallurgical grade silicon (MG-Si) using acid leaching method at a concentration of 2.45 mol/L HCl was performed by varying the leaching time atboiling temperature ( ±100 °C) and with mechanical stirring. The results showed that the leaching process of MG-Si with HCl can be used to eliminate the element of metal impurities. The extraction efficiency of impurity elements contained in the MG-Si by HCl dissolution is 99.996 % for Al, 98.247 % for Ti and 98.491 % for Fe at leaching time of 120 hours. Whereas the leaching efficiency of HCl solution on the impurities using mechanical stirring is 99.04 %.Keywords : Metallurgical grade silicon, Chemical purification, Acid leaching, Impurities

PENGARUH SOLUTION ANNEALING DAN AGING PADA KAWAT PADUAN SHAPE MEMORY Ni-Ti DAN Ni-Ti-Cu[The Influence of Solution Annealing and Aging on Ni-Ti and Ni-Ti-Cu Shape Memory Alloy Wire] Efendi Mabruri; Bambang Sriyono; Bintang Adjiantoro; DN Adnyana
Metalurgi Vol 27, No 2 (2012): Metalurgi Vol. 27 No. 2 Agustus 2012
Publisher : National Research and Innovation Agency (BRIN)

Co-Authors Bambang Sriyono DN Adnyana Efendi Mabruri Efendi Mabruri M. Yunan Hasbi Nurhayati I. Ciptasari Rahmat D. Widodo Saefudin Saefudin Satrio Herbirowo Satrio Herbirowo Septian A. Chandra Setyo Hartadi Sigit D. Yudanto

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Journal : Metalurgi