MODEL KESEIMBANGAN EKSTRAKSI MINYAK TEMULAWAK MENGGUNAKAN PELARUT ETANOL
| Main Authors: | Distantina, Sperisa, Fadilah, |
|---|---|
| Format: | Article PeerReviewed application/pdf |
| Terbitan: |
, 2005
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| Subjects: | |
| Online Access: |
http://eprints.uns.ac.id/657/1/Model_Keseimbangan_Ekstraksi_Minyak_Temulawak_Menggunakan_Pelarut_Etanol_2.pdf http://eprints.uns.ac.id/657/ |
Daftar Isi:
- In the design or operation of mass transfer equipment, it always needs equilibrium data. The aim of this research was to find the suitable equilibrium model on temulawak oil extraction using ethanol 95 % weight as the solvent. The extraction was carried out in closed erlenmeyer of room temperature and equipped by magnetic stirrer for agitation. The extraction was run about 2 hours and the equilibrium state was attained. The concentrations gf oil were measured at various weight ratio solid-ethanol. Three models were propos"f:d, namely Henry model, Langmuir model, and Freunlich model. Based on experimental data and the mathematical model, the equilibrium constants were evaluated nUf[1erically least square. The results showed that the Langmuir equilibrium model waf fit with the experimental data. Key words: equilibrium model, extraction.