Electronic Theses and Dissertation

Prarancangan pabrik aluminium hidroksida menggunakan bahan baku bauksit dan natrium hidroksida sebagai bahan baku. proses produksi secara keseluruhan menggunakan proses kontinyu dengan melibatkan proses bayer. kapasitas produksi sebesar 168.000 ton/tahun dengan waktu operasi 330 hari/tahun dan waktu 24 jam/hari. pabrik ini direncanakan dibangun di kecamatan gunung kijang, kabupaten bintan, provinsi kepulauan riau, dengan luas area pabrik 18.119 m2. bentuk perusahaan yang direncanakan adalah perseroan terbatas (pt) dengan menggunakan metode struktur organisasi garis dan staf dan tenaga kerja sebanyak 119 orang. kebutuhan air untuk pabrik berasal dari sungai pulai, kecamatan gunung kijang, kabupaten bintan, provinsi kepulauan riau. kebutuhan listrik untuk seluruh perusahaan yaitu sebesar 1.754,61 kwh. hasil analisis ekonomi diperoleh sebagai berikut: 1. fixed capital investment (fci) = rp. 1.135.353.242.575 2. working capital investment (wci) = rp. 126.150.360.286 3. total capital investment (tci) = rp. 1.261.503.602.861 4. total production cost (tpc) = rp. 1.190.354.479.875 5. sales cost (sc) = rp. 1.772.914.901.619 6. laba bersih = rp. 436.920.316.308 7. pay out time (pot) = 3,95 tahun 8. break event point (bep) = 29% 9. internal rate of return (irr) = 30,422 % berdasarkan studi teknis dan kelayakan teknis dan ekonomi diatas, maka dapat disiumpulkan bahwa pabrik perancangan aluminium hidroksida ini layak untuk dilanjutkan ketahap konstruksi.

The preliminary design of the Aluminum Hydroxide plant uses bauxite and Sodium Hydroxide as raw materials. The overall production process uses a continuous process involving the Bayer process. The production capacity is 168.000 tons/year with an operating time of 330 days/year and 24 hours/day. This factory is planned to be built in Gunung Kijang District, Bintan Regency, Riau Islands Province, with a factory area of 18.119 m2. The planned form of the company is a Limited Liability Company (PT) using the line and staff organizational structure method and a workforce of 119 people. The water requirement for the factory comes from the Pulai River, Gunung Kijang District, Bintan Regency, Riau Islands Province. The electricity requirement for the entire company is 1.754,61 KWH. The results of the economic analysis are as follows: 1. Fixed Capital Investment (FCI) = Rp. 1.135.353.242.575 2. Working Capital Investment (WCI) = Rp. 126.150.360.286 3. Total Capital Investment (TCI) = Rp. 1.261.503.602.861 4. Total Production Cost (TPC) = Rp. 1.190.354.479.875 5. Sales Cost (SC) = Rp. 1.772.914.901.619 6. Net Profit = Rp. 436.920.316.308 7. Pay Out Time (POT) = 3,95 years 8. Break Event Point (BEP) = 29% 9. Internal Rate of Return (IRR) = 30,422% Based on the technical study and technical and economic feasibility above, it can be concluded that the Aluminum Hydroxide design plant is feasible to continue to the construction stage.