Preliminary of Precipitated Silica Plant from Sulphuric Acid and Sodium Silicate with Capacity of 45,000 ton/year.

Fatmawati, Linda and , Dr. Ir. Ahmad M. Fuadi, M.T. and , Kun Harismah, Ph.D. (2015) Preliminary of Precipitated Silica Plant from Sulphuric Acid and Sodium Silicate with Capacity of 45,000 ton/year. Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

In Indonesia, precipitated silica plant is an industry that can provide a good opportunity for the country. Indonesia has not been able to meet the needs of precipitated silica, so that Indonesia imports from other countries. From 2005 to 2012 Indonesia has exported 89,801.806 tons of precipitated silica, and the capacity for imports are 111,362.3 tons, so the precipitated silica plant is designed of 45,000 tons/year. Precipitated silica (SiO2) is the oxidation of non-metallic compounds. it has a solid powder form, white, odorless, insoluble in water, and has a crystalline structure. The process of manufacturing of precipitated silica using silicate acidification uses CSTR reactor (continuous stirrer tank reactor). It operates at a temperature of 90°C and at a pressure of 1 atm. This reactor proceeds in the liquid phase, irreversible, and non-adiabatic. The product of the reactor are separated in rotary vacuum filter, and then the output is a cake of SiO2. It is dried with dryer. Utility unit of the plant consists of the units of the water provider, the unit of steam supply, electricity and fuel supply unit, and laboratories to maintain the quality of materials and products to conform to the standards. This company is a limited Incorporation with a system of organizational structure and staff. As a plan, the company is built in Karawang, District Ciampel, and West Java Province. The establishment of the plant requires a total investment (capital investment) amounting to Rp 379,572,671,920 and production cost Rp 672,882,855,360. Economic analysis is obtained BEP 49.6 %, SDP 28.4 %, ROI before tax 30.78 %, ROI After tax (Inc, Ltd) 18.47% Profit after tax earned Rp 36,910,288,200

Item Type: Karya ilmiah (Skripsi)
Uncontrolled Keywords: Precipitated silicate, continuous stirrer tank reactor
Subjects: T Technology > TP Chemical technology
Divisions: Fakultas Teknik > Teknik Kimia
Depositing User: Linda Fatmawati
Date Deposited: 06 Oct 2015 06:52
Last Modified: 25 Jul 2016 06:22
URI: http://eprints.ums.ac.id/id/eprint/37613

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