Pemisahan Campuran Naftalen-Difenil Dengan Metode Progressive Freezing

" The objectives of this research are to validate a mathematical model to predict the impurities concentration in solid phase and to study the effect of agitation rate to the purity of solid product, represented by coefficient distribution of minor component. Naphthalene-diphenyl mixture with i...

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Main Author: Perpustakaan UGM, i-lib
Format: Article
Published: [Yogyakarta] : Unit Informasi Inovasi Proses Pembelajaran (UI2P2) Universitas Gadjah Mada 2003
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author Perpustakaan UGM, i-lib
author_facet Perpustakaan UGM, i-lib
author_sort Perpustakaan UGM, i-lib
collection UGM
description " The objectives of this research are to validate a mathematical model to predict the impurities concentration in solid phase and to study the effect of agitation rate to the purity of solid product, represented by coefficient distribution of minor component. Naphthalene-diphenyl mixture with initial temperature at about 80-85 "C was cooled slowly enough until a solid phase was formed. Every 0.2 cm of solid phase was formed, the liquid sample was analyzed to evaluate the concentration of naphthalene. The agitation rates that were studied are 120, 150, 175, 200 and 250 rpm and temperature of cooling medium is 32"C. Naphthalene would be distributed in liquid and solid phase with the value of distribution coefficient between 0.1037 and 0.1153. Generally, the result of this research proved that higher purity product could be achieved at lower agitation rate. The relationship between distribution coefficient and the controlling variable can be expressed by the equation: 0.073 The average deviation of k model and k data is 1.82 %. The equation is valid for Reynolds number ranged from 240 up to 500. The effect of controlling variable is not significant to the coefficient distribution. It means that k is not mass transfer parameter but it is an equilibrium phase parameter.
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spelling oai:generic.eprints.org:205222014-06-18T00:30:29Z https://repository.ugm.ac.id/20522/ Pemisahan Campuran Naftalen-Difenil Dengan Metode Progressive Freezing Perpustakaan UGM, i-lib Jurnal i-lib UGM " The objectives of this research are to validate a mathematical model to predict the impurities concentration in solid phase and to study the effect of agitation rate to the purity of solid product, represented by coefficient distribution of minor component. Naphthalene-diphenyl mixture with initial temperature at about 80-85 "C was cooled slowly enough until a solid phase was formed. Every 0.2 cm of solid phase was formed, the liquid sample was analyzed to evaluate the concentration of naphthalene. The agitation rates that were studied are 120, 150, 175, 200 and 250 rpm and temperature of cooling medium is 32"C. Naphthalene would be distributed in liquid and solid phase with the value of distribution coefficient between 0.1037 and 0.1153. Generally, the result of this research proved that higher purity product could be achieved at lower agitation rate. The relationship between distribution coefficient and the controlling variable can be expressed by the equation: 0.073 The average deviation of k model and k data is 1.82 %. The equation is valid for Reynolds number ranged from 240 up to 500. The effect of controlling variable is not significant to the coefficient distribution. It means that k is not mass transfer parameter but it is an equilibrium phase parameter. [Yogyakarta] : Unit Informasi Inovasi Proses Pembelajaran (UI2P2) Universitas Gadjah Mada 2003 Article NonPeerReviewed Perpustakaan UGM, i-lib (2003) Pemisahan Campuran Naftalen-Difenil Dengan Metode Progressive Freezing. Jurnal i-lib UGM. http://i-lib.ugm.ac.id/jurnal/download.php?dataId=3373
spellingShingle Jurnal i-lib UGM
Perpustakaan UGM, i-lib
Pemisahan Campuran Naftalen-Difenil Dengan Metode Progressive Freezing
title Pemisahan Campuran Naftalen-Difenil Dengan Metode Progressive Freezing
title_full Pemisahan Campuran Naftalen-Difenil Dengan Metode Progressive Freezing
title_fullStr Pemisahan Campuran Naftalen-Difenil Dengan Metode Progressive Freezing
title_full_unstemmed Pemisahan Campuran Naftalen-Difenil Dengan Metode Progressive Freezing
title_short Pemisahan Campuran Naftalen-Difenil Dengan Metode Progressive Freezing
title_sort pemisahan campuran naftalen difenil dengan metode progressive freezing
topic Jurnal i-lib UGM
work_keys_str_mv AT perpustakaanugmilib pemisahancampurannaftalendifenildenganmetodeprogressivefreezing