Yasmiati, Yasmiati (2025) Pra Rencana Pabrik Pupuk Magnesium Sulfat Heptahidrat dari Bittern dan Asam Sulfat dengan Proses Kristalisasi. Undergraduate thesis, UPN "Veteran" Jawa Timur.
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Abstract
The production of Magnesium Sulfate Heptahydrate fertilizer consists of four stages: raw material pretreatment, reaction, crystallization, and product control. In pretreatment, bittern is reacted with 48% NaOH diluted to 7% and 98% H₂SO₄ diluted to 40% before being fed to the reactor. In the first reaction stage, bittern is reacted with 7% NaOH to precipitate Mg(OH)₂. The solid Mg(OH)₂ is then separated and reacted with 40% H₂SO₄ to form a MgSO₄ solution. In the crystallization stage, the MgSO₄ solution is first concentrated in an evaporator and then flowed to a crystallizer to form MgSO₄·7H₂O crystals. The crystals are then separated and dried in a rotary dryer and cooled on a cooling conveyor. Product control includes standardizing the size with a 150-mesh ball mill, followed by storage in a silo before packaging.
| Item Type: | Thesis (Undergraduate) | ||||||||
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| Subjects: | T Technology > TP Chemical technology > TP155 Chemical engineering | ||||||||
| Divisions: | Faculty of Engineering > Departement of Chemical Engineering | ||||||||
| Depositing User: | Yasmiati YA Ati | ||||||||
| Date Deposited: | 04 Nov 2025 07:26 | ||||||||
| Last Modified: | 15 Jan 2026 04:03 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/46114 |
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