SUYADI, SUYADI (2025) ANALISIS DAN OPTIMASI PARAMETER PROSES FRENCH TERHADAP HASIL KUALITAS ZINC OXIDE POWDER (ZNO) MENGGUNAKAN METODE TAGUCHI. S2 thesis, Universitas Mercu Buana Jakarta.
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Abstract
The production of high-purity Zinc Oxide (ZnO) has become increasingly important for various industrial applications, including electronics, cosmetics, energy, andchemical manufacturing. This study aims to analyze and optimize the effects of furnace temperature, natural gas flow rate (CNG), gas pressure, and air (blower)pressure on ZnO quality using the French process. The quality of ZnO was evaluatedin terms of purity, particle size, and morphology. The Taguchi method with an L9orthogonal array design was employed to determine the optimal combination of process parameters efficiently. Zinc was melted and oxidized under three temperaturelevels (900°C, 1000°C, and 1100°C), while varying the gas flow rate, gas pressure, and blower pressure. The ZnO products were characterized through complexometrictitration with EDTA for purity determination, particle size analysis using laserdiffraction (BT-9300SE), and morphological observation using Scanning ElectronMicroscopy (SEM). Results showed that furnace temperature and gas flow ratesignificantly influenced ZnO quality. The optimal parameter combination was foundat 1100°C, 60 m³/h gas flow rate, 1.0 bar gas pressure, and 4 kg/cm² air pressure, achieving a purity of 99.94%, an average particle size of 1.08 µm, and uniformspherical particle morphology. This study offers technical recommendations forimproving process efficiency and ZnO product quality for industrial-scaleapplications. This research still has limitations, particularly in the energy efficiencyand operational costs of the French process, which have not been thoroughlyanalyzed. Therefore, the study will explore the economics, energy sustainability, andpotential broader applications of ZnO in various high-tech industries. Keywords: Zinc Oxide (ZnO), French process, process optimization, Taguchi method, purity, particle size, morphology Produksi Zinc Oxide (ZnO) berkualitas tinggi menjadi fokus utama dalam industri kimia, elektronik, kosmetik, dan energi. Penelitian ini bertujuan untuk menganalisisdan mengoptimasi pengaruh suhu tungku, laju aliran gas alam (CNG), tekanan gas, dan tekanan udara (blower) terhadap kualitas ZnO yang dihasilkan melalui metodeFrench. Kualitas ZnO dievaluasi berdasarkan kemurnian, ukuran partikel, danmorfologi. Metode Taguchi dengan desain eksperimen ortogonal L9 digunakan untukmenentukan kombinasi parameter proses yang optimal secara efisien. Proses produksi dilakukan dengan melebur zinc pada tiga variasi suhu (900°C, 1000°C, dan 1100°C)serta memvariasikan aliran gas, tekanan gas, dan tekanan blower. Karakterisasi ZnOdilakukan melalui titrasi kompleksometri menggunakan EDTA untuk menentukankemurnian, pengukuran ukuran partikel menggunakan instrumen laser difraksi BT9300SE, dan pengamatan morfologi dengan SEM (Scanning Electron Microscope). Hasil menunjukkan bahwa suhu tungku dan aliran gas memiliki pengaruh signifikanterhadap kualitas ZnO. Kombinasi optimal yang diperoleh adalah suhu 1100°C, alirangas 60 m³/jam, tekanan gas 1,0 bar, dan tekanan udara 4 kg/cm², menghasilkankemurnian 99,94% dan ukuran partikel rata-rata 1,08 µm dengan morfologi partikel sferis yang homogen. Penelitian ini memberikan rekomendasi teknis yang dapat diterapkan dalam industri untuk meningkatkan efisiensi energi dan kualitas produkZnO secara berkelanjutan. Penelitian ini masih memiliki keterbatasan, terutama padaaspek efisiensi energi dan biaya operasional proses French yang belum dianalisissecara menyeluruh. Oleh karena itu, studi akan mengeksplorasi aspek ekonomi, keberlanjutan energi, dan potensi aplikasi ZnO lebih luas di berbagai industri teknologi tinggi. Kata kunci: Zinc Oxide (ZnO), metode French, optimasi proses, Taguchi, kemurnian, ukuran partikel, morfologi
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