Characterization And Potential Utilization Of Gypsum From Lao Pdr

The aim of this research work is to focus on the quality evaluation and optimization processing of the gypsum rock formed from different geological depositional setting as the potential resources for many downstream industrial applications. Samples from naturally occurring gypsum deposits were...

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Main Author: Panhyavisy, Sangkhone
Format: Thesis
Language:English
Published: 2013
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Online Access:http://eprints.usm.my/43923/1/Sangkhone%20Panhyavisy24.pdf
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spelling my-usm-ep.439232019-04-12T05:26:10Z Characterization And Potential Utilization Of Gypsum From Lao Pdr 2013-09 Panhyavisy, Sangkhone TN1-997 Mining engineering. Metallurgy The aim of this research work is to focus on the quality evaluation and optimization processing of the gypsum rock formed from different geological depositional setting as the potential resources for many downstream industrial applications. Samples from naturally occurring gypsum deposits were sought from two different resources in Khammouan province, and Savanakhet province, Lao PDR. These gypsum samples were subjected to detailed laboratory investigations including raw material characterization and gypsum manufacturing in order to evaluate and determined the optimized calcined gypsum powder for each gypsum resources. Based from the geological origins of these two gypsum resources, they have similar mineralogical, chemical and physical characteristic. Both resources were found to be of class I (high grade with 98% of CaSO4.2HO2), which is a specification for many industrial applications such as plaster, wallboard, cement, food and pharmaceutical, and flue gas desulphurization (FGD). However, both gypsum are not suitable for agriculture as fertilizer and paint. This proved that the quality of the end-products and its preparation were partly determined by the geological origin of the gypsum resources especially the rock mineralogy. The gypsum powder produced after crushing, grinding and calcinations at several temperatures (110 ºC, 150 ºC, 175 ºC, 200 ºC, 225 ºC & 250 ºC) were found to be in the form of CaSO4.0.5H2O (hemi anhydrate), where some water have been removed. This result is supported from the physical, chemical and mineralogical characterization on the calcined gypsum. 2013-09 Thesis http://eprints.usm.my/43923/ http://eprints.usm.my/43923/1/Sangkhone%20Panhyavisy24.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Bahan & Sumber Mineral
institution Universiti Sains Malaysia
collection USM Institutional Repository
language English
topic TN1-997 Mining engineering
Metallurgy
spellingShingle TN1-997 Mining engineering
Metallurgy
Panhyavisy, Sangkhone
Characterization And Potential Utilization Of Gypsum From Lao Pdr
description The aim of this research work is to focus on the quality evaluation and optimization processing of the gypsum rock formed from different geological depositional setting as the potential resources for many downstream industrial applications. Samples from naturally occurring gypsum deposits were sought from two different resources in Khammouan province, and Savanakhet province, Lao PDR. These gypsum samples were subjected to detailed laboratory investigations including raw material characterization and gypsum manufacturing in order to evaluate and determined the optimized calcined gypsum powder for each gypsum resources. Based from the geological origins of these two gypsum resources, they have similar mineralogical, chemical and physical characteristic. Both resources were found to be of class I (high grade with 98% of CaSO4.2HO2), which is a specification for many industrial applications such as plaster, wallboard, cement, food and pharmaceutical, and flue gas desulphurization (FGD). However, both gypsum are not suitable for agriculture as fertilizer and paint. This proved that the quality of the end-products and its preparation were partly determined by the geological origin of the gypsum resources especially the rock mineralogy. The gypsum powder produced after crushing, grinding and calcinations at several temperatures (110 ºC, 150 ºC, 175 ºC, 200 ºC, 225 ºC & 250 ºC) were found to be in the form of CaSO4.0.5H2O (hemi anhydrate), where some water have been removed. This result is supported from the physical, chemical and mineralogical characterization on the calcined gypsum.
format Thesis
qualification_level Master's degree
author Panhyavisy, Sangkhone
author_facet Panhyavisy, Sangkhone
author_sort Panhyavisy, Sangkhone
title Characterization And Potential Utilization Of Gypsum From Lao Pdr
title_short Characterization And Potential Utilization Of Gypsum From Lao Pdr
title_full Characterization And Potential Utilization Of Gypsum From Lao Pdr
title_fullStr Characterization And Potential Utilization Of Gypsum From Lao Pdr
title_full_unstemmed Characterization And Potential Utilization Of Gypsum From Lao Pdr
title_sort characterization and potential utilization of gypsum from lao pdr
granting_institution Universiti Sains Malaysia
granting_department Pusat Pengajian Kejuruteraan Bahan & Sumber Mineral
publishDate 2013
url http://eprints.usm.my/43923/1/Sangkhone%20Panhyavisy24.pdf
_version_ 1747821305012420608