@misc{eprints56672,
           month = {Juli},
           title = {PRARANCANGAN PABRIK MAGNESIUM SULFAT 
HEPTAHIDRAT DARI MAGNESIUM OKSIDA 
DAN ASAM SULFAT KAPASITAS 50.000 TON/TAHUN
Tugas Khusus Perancangan Crystallizer 301 (CR-301)
},
          author = {1415041023 Guntur Arya Perdana},
         address = {UNIVERSITAS LAMPUNG },
       publisher = {FAKULTAS TEKNIK},
            year = {2019},
             url = {http://digilib.unila.ac.id/56672/},
        abstract = {Magnesium sulfat heptahidrat merupakan salah satu hasil industri kimia yang 
dibutuhkan baik sebagai bahan tambahan pupuk, bahan untuk obat-obatan, dan bahan 
intermediate. Magnesium sulfat heptahidrat dihasilkan dari reaksi antara magnesium 
oksida dan asam sulfat. Kebutuhan dalam negeri akan magnesium sulfat heptahidrat
diperkirakan akan meningkat sehingga dibutuhkan pabrik yang mampu memenuhi 
kebutuhan dalam negeri. 
Pabrik magnesium sulfat heptahidrat ini direncanakan akan didirikan di Kawasan 
Industri Cilegon, Jalan Gunung Sugih No. 75, Provinsi Banten. Pabrik ini direncanakan 
akan menghasilkan magnesium sulfat heptahidrat sebanyak 50.000 ton/tahun, dengan 
waktu operasi 330 hari/tahun. Bahan baku untuk magnesium oksida diperoleh dari PT. 
UNIKEMIKA Asia, Bogor dan asam sulfat yang diperoleh dari PT. Insoclay 
Acidatama Indonesia, Tangerang.
Tahapan proses pabrik magnesium sulfat heptahidrat ini terdiri dari penyiapan bahan 
baku, tahap reaksi, dan tahap separasi dan pemurnian. Unit utilitas pada pabrik 
magnesium sulfat heptahidrat terdiri atas unit penyedia air, penyedia listrik, penyedia 
steam dan penyedia bahan bakar. 
Bentuk perusahaan adalah Perseroan Terbatas (PT), menggunakan struktur organisasi 
line and staff dengan kebutuhan karyawan 153 orang. Dari hasil evaluasi ekonomi 
diperoleh :
Fixed Capital Investment (FCI) = Rp 311.765.214.641
Working Capital Investment (WCI) = Rp 55.017.390.819
Total Capital Investment (TCI) = Rp 366.782.605.460
Break Even Point (BEP) = 38,5268 \%
Shut Down Point (SDP) = 28,4046 \%
Pay Out Time after taxes (POT)a = 2,21 tahun
Return on Investment after taxes (ROI)a = 32,7451 \%
Discounted cash flow (DCF) = 35,30 \%
Hasil studi kelayakan teknik dan ekonomi menyatakan bahwa pendirian Pabrik 
Magnesium Sulfat Heptahidrat layak dikaji lebih lanjut.
Kata Kunci : Magnesium sulfat heptahidrat, magnesium oksida, asam sulfat


Magnesium sulfate heptahydrate is one of the chemical manufacture products that are 
needed both as fertilizer additives, ingredients for medicines, and intermediate in 
industry materials. Magnesium sulfate heptahydrate is produced from the reaction 
between magnesium oxide and sulfuric acid. Domestic demand for magnesium sulfate 
heptahydrate is expected to increase so that we need factories that can satisfy the 
demand of the product needs.
The Magnesium Sulfate Heptahydrate Plant is planned to be established in the Cilegon 
Industrial Area, Gunung Sugih Street No. 75, Banten Province. This factory is planned 
to produce 50,000 tons of magnesium sulfate heptahydrate, with an operating time of 
330 days / year. The raw material for magnesium oxide is obtained from PT. 
UNIKEMIKA Asia, Bogor and sulfuric acid obtained from PT. Insoclay Acidatama 
Indonesia, Tangerang.
The stages of the magnesium sulphate heptahydrate manufacturing process consist of 
preparation of raw materials, reaction stages, and separation \& purification stages. The 
supplies of plant?s utility are: water supply units, electricity, steam and fuel. The
company entity form is Limited Liability Company (PT), using a line and staff 
organization structure with the labors of 153 people. Plant?s economic evaluation are:
Fixed Capital Investment (FCI) = Rp 311.765.214.641
Working Capital Investment (WCI) = Rp 55.017.390.819
Total Capital Investment (TCI) = Rp 366.782.605.460
Break Even Point (BEP) = 38,5268 \%
Shut Down Point (SDP) = 28,4046 \%
Pay Out Time after taxes (POT)a = 2,21 years
Return on Investment after taxes (ROI)a = 32,7451 \%
Discounted cash flow (DCF) = 35,30 \%
The results of technical and economic feasibility study is feasible and need further 
analysis, because the plant is profitable with good sustainability.
Key Word : Magnesium sulfate heptahydrate, magnesium oxide, sulfuric acid.}
}