Prarancangan Pabrik Ordinary Portland Cement (OPC) Menggunakan Limbah Industri Tembaga (Copper Slag) sebagai Pengganti Pasir Besi (Iron Sand) dengan Proses Kering Kapasitas 930.000 Ton/Tahun

Abstract

Cement is one of the most important strategic commodity raw materials in modern human development. Ordinary Portland Cement (OPC) is a very popular type of cement and is often used in various concrete construction projects. OPC cement is known for its strength and reliability. The Preliminary Design of an Ordinary Portland Cement (OPC) Plant Using Copper Slag as a Substitute for Iron Sand with a Dry Process, with a capacity of 930,000 tons/year and 300 working days per year, aims to apply chemical engineering knowledge including mass balance, energy balance, equipment specifications, chemical engineering operations, utilities, and other aspects of chemical engineering. The plant is planned to be located in Jembayan District, Kutai Kartanegara Regency, East Kalimantan Province, with a total area of 18,221 m². The business entity is in the form of a Limited Liability Company (PT) with 160 employees. The results of the economic analysis of the Ordinary Portland Cement (OPC) plant show a profit margin (PM) of 41.24%, a break-even point (BEP) of 46.73%, a return on investment (ROI) of 32%, a pay out time (POT) of 3.14 years, a return on network (RON) of 53.12%, and an internal rate of return (IRR) of 24.30%. Based on the results of the economic aspect analysis, it can be concluded that the establishment of this Ordinary Portland Cement (OPC) plant is feasible.