Optimasi Current Effisiensi Proses Elektrorefining Menggunakan Bahan Adiktif Klorida

Zulfiky, Oktavian (2026) Optimasi Current Effisiensi Proses Elektrorefining Menggunakan Bahan Adiktif Klorida. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 8044251057_Professional.pdf - Accepted Version Restricted to Repository staff only Download (4MB) | Request a copy

Abstract

Elektrorefining tembaga dilakukan untuk memurnikan tembaga yang melalui melalui prosesm elektrolisis. Key perfomance indicator elektrorefining yakni time efisiensi dan current effisiensi. Semakin tinggi current effisiensi yang dihasilkan maka semakin kecil loss production. Solusi alternatif dengan optimasi proses berupa penambahan bahan adiktif. Bahan adiktif mengandung klorida yang digunakan pada proses ini yakni natrium klorida (NaCl) dan asam klorida (HCl) dengan variabel yang digunakan ekeperimen ini sebesar 10 mg/L, 20 mg/L, 30 mg/L, 40 mg/L, 50 mg/L dan 60 mg / L. Sedangkan variable control menggunakan Adiktif glue 6 g/l, Thiourea 70 g/l dan Aviton 8 g/l serta waktu elektrolisis selama 7 hari per siklus. Penelitian ini dilakukan dengan pengulangan sebanyak 3 siklus atau selama 21 hari. Hasil penelitian menunjukkan bahwa Konsentrasi optimum menggunakan asam klorida HCl pada 40 ppm dengan current effisiensi yang dihasilkan 91,12%, sedangkan menggunakan garam NaCl pada konsenstrasi 50 ppm dengan current effisiensi yang dihasilkan 88,46%. Optimasi menggunakan bahan adiktif klorida menggunakan asam klorida (HCl) sebagai adiktif klorida mampu menaikkan current effisiensi dibandingkan menggunakan garam (NaCl).
======================================================================================================================================
Copper electrorefining is carried out to purify copper through the electrolysis process. The key performance indicators (KPIs) in electrorefining are time efficiency and current efficiency. the higher the current efficiency achieved, the lower the production loss. An alternative solution through process optimization involves the addition of additive materials. The additives used in this process
contain chloride, namely sodium chloride (NaCl) and hydrochloric acid (HCl). The experimental variables used in this study were additive concentrations of 10 mg/L, 20 mg/L, 30 mg/L, 40 mg/L, 50 mg/L, and 60 mg/L. The control variables consisted of glue additive 6 g/L, thiourea 70 g/L, and Aviton 8 g/L, with an electrolysis time of 7 days per cycle. The study was conducted with three repetitions (cycles), resulting in a total duration of 21 days. The results of the study indicate that the optimum concentration using hydrochloric acid (HCl) was 40 ppm, achieving a current efficiency of 91.12%, whereas the use of sodium chloride (NaCl) at a concentration of 50 ppm resulted in a
current efficiency of 88.46%. Optimization using chloride additives, specifically hydrochloric acid (HCl), was able to improve current efficiency compared to the use of salt (NaCl).

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Adiktif Klorida, Current Effisiensi, Elektrorefining, Rectifier, Chloride Additives
Subjects:	T Technology > TP Chemical technology > TP255 Electrochemistry, Industrial.
Divisions:	Interdisciplinary School of Management and Technology (SIMT) > 23902-Engineer Professional Program
Depositing User:	Oktavian Zulfiky
Date Deposited:	06 Jun 2026 03:13
Last Modified:	06 Jun 2026 03:13
URI:	http://repository.its.ac.id/id/eprint/133470

Actions (login required)

View Item