Putra, Yurico Siswahyuda (2021) Ekstraksi Magnesium Dari Dolomit Dengan Asam Sulfat. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
Dolomite MgCa(CO3)2, a mineral that occurs commonly in nature, finds applications in many in-dustrial fields. For example, it is a flux agent in the metallurgical, glass and ceramic industries, a filler material in the production of paper, rubber and plastics, a sorbent in flue gas desulfurization as well as a filter for water treatment. Large amounts of dolomite are also used in building industry and agriculture (fertilizer dolomite). This study aims to determine the effect of temperature and time on the extraction of magnesium metal (Mg) in dolomite. The extraction process of dolomite us-ing sulfuric acid with time variable conditions are 2 hours, 3 hours, 4 hours, 5 hours, 6 hours and at temperatures of 35°C, 45°C, 55°C, 65°C, 75°C. This study showed that the increase in operating temperature was able to reduce the magnesium content of the sample during processing. The re-sults indicated that the solubility of dolomite increased when the process temperature was in-creased because the reaction rate was controlled by the chemical reaction process. The increase in operating temperature was able to increase the percentage of magnesium extracted from the sam-ple during processing, the percentage value of magnesium extracted in the sample also increased in line with the length of the dissolving process. The best conditions were stirring for 6 hours and a temperature of 75 °C with the optimum results separating Mg from Tuban dolomite with the addi-tion of sulfuric acid with a residual concentration of 0.17% and the percentage of magnesium ex-tracted was 94.85%.
| 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: | Yurico Siswahyuda Putra | ||||||||
| Date Deposited: | 25 Jul 2022 08:15 | ||||||||
| Last Modified: | 25 Jul 2022 09:04 | ||||||||
| URI: | http://repository.upnjatim.ac.id/id/eprint/8118 |
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