Electronic Theses and Dissertation

Prarancangan pabrik nikel (ii) hidroksida menggunakan bahan baku bijih limonit, asam sulfat dan natrium hidroksida. proses produksi secara kesuluruhan menggunakan proses atmospheric acid leaching. kapasitas produksi sebesar 30.000 ton/tahun dengan waktu operasi 330 hari/tahun dan waktu 24 jam/hari. pabrik ini direncanakan dibangun di kecamatan pomala, kabupaten kolaka, sulawesi tenggara, indonesia. dengan luas pabrik 29.000 m2. bentuk perusahaan yang direncanakan adalah perseroan terbatas (pt) dengan menggunakan metode struktur organisasi garis dan staf dan tenaga kerja sebanyak 174 orang. kebutuhan air untuk pabrik berasal dari sungai konaweha dengan laju alir 2.863.636 kg/jam. hasil analisis ekonomi diperoleh sebagai berikut: 1. fixed capital invesment = rp. 1.739.863.422.082,- 2. working capital invesment = rp. 59.853.713.122,- 3. total capital invesment = rp. 1.799.717.135.204,- 4. total biaya produksi = rp. 105.373.520.987.669,- 5. hasil penjualan (sc) = rp. 106.054.131.198.613,- 6. laba bersih = rp. 510.457.658.207,- 7. pay out time (pot) = 3,01 tahun 8. break event point (bep) = 36,15 % 9. internal rate of return = 21,95 % 10.rate of return = 28 % berdasarkan studi teknis dan kelayakan teknis dan ekonomi diatas, prarancangan pabrik nikel (ii) hidroksida ini layak untuk dilanjutkan ketahap rancangan.

Preliminary Design of a Nickel (II) Hydroxide Plant Using Limonite Ore, Sulfuric Acid, and Sodium Hydroxide as Raw Materials The overall production process uses the Atmospheric Acid Leaching method, with a production capacity of 30,000 tons/year, operating 330 days/year and 24 hours/day. The plant is planned to be built in Pomala District, Kolaka Regency, Southeast Sulawesi, Indonesia, covering an area of 29,000 m². The planned company structure is a Limited Liability Company (PT) using a line and staff organizational structure, employing a total of 174 workers. The water required for the plant will be sourced from the Konaweha River, with a flow rate of 2,863,636 kg/hour. The economic analysis results are as follows: 1. Fixed Capital Investment: Rp. 1,739,863,422,082 2. Working Capital Investment: Rp. 59,853,713,122 3. Total Capital Investment: Rp. 1,799,717,135,204 4. Total Production Cost: Rp. 105,373,520,987,669 5. Sales Revenue (SC): Rp. 106,054,131,198,613 6. Net Profit: Rp. 510,457,658,207 7. Pay Out Time (POT): 3.01 years 8. Break Even Point (BEP): 36.15% 8. Internal Rate of Return (IRR): 21.95% 9. Rate of Return: 28% Based on the technical and economic feasibility study above, the preliminary design of this Nickel (II) Hydroxide plant is feasible to proceed to the design phase.