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Modification of Magnesium Oxide from Bittern Waste with Strontium Oxide for Palm Oil Transesterification Process

Indonesian Journal of Chemical Science · Vol. 10 No. 2 (2021) · hlm. 139–144

DOI
10.15294/ijcs.v10i2.50033
ISSN
2502-6844, 2252-6951
Terbit
2021-09-30
Penerbit
Universitas Negeri Semarang
Bahasa
eng

Abstrak

Bittern has a high magnesium content, so that it can be used as a catalyst in the production of biodiesel through the transesterification process. MgO catalyst has a relatively low basicity, so it is necessary to add metal oxides such as SrO. This study aims to determine the characteristics and catalytic effectiveness of the SrO/MgO catalyst in the transesterification process of palm oil using GC and GCMS tests. Modification of SrO on the MgO catalyst was carried out using the impregnation method with a ratio of 1:3. The presence of SrO diffraction peaks on XRD analysis showed that SrO agglomerated on the MgO surface, this can be attributed to the morphology of the spheres which are homogeneously agglomerated. The result of basicity analysis shows that the addition of SrO can increase the number of moles of base of MgO. In the palm oil transesterification process using an SrO/MgO catalyst, the methyl ester conversion increased by 47.17% at the optimal reaction time of 2 hours, while the MgO catalyst only resulted in a conversion of 2.35%. Based on the results of the study, it was found that the addition of SrO could increase the catalytic effectiveness of MgO.

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  • State University of Semarang
  • Udayana University
  • Hasanuddin University
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Rekan penulisOrganisasiArtikel bersama
Ella KusumastutiAfiliasi tidak diketahui5
Endang SusilaningsihState University of Semarang4
Triastuti SulistyaningsihAfiliasi tidak diketahui4
Agung Tri PrasetyaState University of Semarang3
Woro SumarniAfiliasi tidak diketahui2
Sigit PriatmokoState University of Semarang2
Harjono HarjonoAfiliasi tidak diketahui2
F. ‪Widhi MahatmantiAfiliasi tidak diketahui2
SRI WAHYUNIHasanuddin University2
Nanik WijayatiState University of Semarang2
Kasmadi Imam SupardiState University of Semarang2
Nofita MegasariAfiliasi tidak diketahui1
pratiwi nurfainzaniAfiliasi tidak diketahui1
Ersanghono KusumoAfiliasi tidak diketahui1
Ni'matul KhasanahAfiliasi tidak diketahui1
Iqnatu Nazila AmiqueAfiliasi tidak diketahui1
Apriliani Arifatul AfwahAfiliasi tidak diketahui1
Mutiara Dewi RukmanaAfiliasi tidak diketahui1
uswatun hasanahAfiliasi tidak diketahui1
Dhonirul MachirilAfiliasi tidak diketahui1
Yanuar HakimAfiliasi tidak diketahui1
Savitri SavitriAfiliasi tidak diketahui1
Yeni Fitriana JayantiAfiliasi tidak diketahui1
Nino RinaldiAfiliasi tidak diketahui1
krisnawati kimia unnesAfiliasi tidak diketahui1
Sri WardaniUdayana University1
Sri MursitiState University of Semarang1
Tasqia TunnisaAfiliasi tidak diketahui1
Lia Inarotut DarojahAfiliasi tidak diketahui1
Aliftia Wahyu RahmawatiAfiliasi tidak diketahui1
Harjito HarjitoAfiliasi tidak diketahui1
Alberto Krishna Ksatria Winning KusumaAfiliasi tidak diketahui1
Siti - ZulichatunAfiliasi tidak diketahui1
Mariyanti DarmadinataAfiliasi tidak diketahui1
Vidya Dwi HastutiAfiliasi tidak diketahui1
Septiani Yuni RahmawatiAfiliasi tidak diketahui1
Faricha TunjungsariAfiliasi tidak diketahui1
Amelinda Diana PatriciaAfiliasi tidak diketahui1

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Sumber metadata: OAI-PMH (metadata jurnal) https://journal.unnes.ac.id/sju/index.php/ijcs/oai, pertama di-harvest 5 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">Modification of Magnesium Oxide from Bittern Waste with Strontium Oxide for Palm Oil Transesterification Process</dc:title>
	<dc:creator>Qoyyima, Diana</dc:creator>
	<dc:creator>Jumaeri, Jumaeri</dc:creator>
	<dc:description xml:lang="en-US">&amp;nbsp;
Bittern has a high magnesium content, so that it can be used as a catalyst in the production of biodiesel through the transesterification process. MgO catalyst has a relatively low basicity, so it is necessary to add metal oxides such as SrO. This study aims to determine the characteristics and catalytic effectiveness of the SrO/MgO catalyst in the transesterification process of palm oil using GC and GCMS tests. Modification of SrO on the MgO catalyst was carried out using the impregnation method with a ratio of 1:3. The presence of SrO diffraction peaks on XRD analysis showed that SrO agglomerated on the MgO surface, this can be attributed to the morphology of the spheres which are homogeneously agglomerated. The result of basicity analysis shows that the addition of SrO can increase the number of moles of base of MgO. In the palm oil transesterification process using an SrO/MgO catalyst, the methyl ester conversion increased by 47.17% at the optimal reaction time of 2 hours, while the MgO catalyst only resulted in a conversion of 2.35%. Based on the results of the study, it was found that the addition of SrO could increase the catalytic effectiveness of MgO.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Negeri Semarang</dc:publisher>
	<dc:date>2021-09-30</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en-US">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.unnes.ac.id/sju/ijcs/article/view/50033</dc:identifier>
	<dc:identifier>10.15294/ijcs.v10i2.50033</dc:identifier>
	<dc:source xml:lang="en-US">Indonesian Journal of Chemical Science; Vol 10 No 2 (2021); 139-144</dc:source>
	<dc:source>2502-6844</dc:source>
	<dc:source>2252-6951</dc:source>
	<dc:source>10.15294/ijcs.v10i2</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.unnes.ac.id/sju/ijcs/article/view/50033/20020</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2021 Indonesian Journal of Chemical Science</dc:rights>
</oai_dc:dc>