MAKING A SYNTHETIC ZEOLITE FROM A RESIDUE OF BAUXITE WASHING
DOI:
https://doi.org/10.30556/imj.Vol23.No2.2020.1112Keywords:
alumina, bauxite, reactive silica, waste washing bauxite, zeolite NaAAbstract
A zeolite synthetic of NaA type is generally prepared by mixing the alumina and silicate-containing materials (alkali alumino hydro-silicates). The used raw materials include the amorphous solids such as metakaolin, siliceous earth, coal ash, kimberlite waste, alumina trihydrate [Al(OH)3], bauxite, and aluminum metal. Residue of bauxite washing retains a fine texture and contains significant alumina and silica content, namely 30-36% Al2O3 and 10-15% SiO2. Both components are required for making the zeolite NaA . In this research, the zeolite NaA was made by extracting the alumina from residue of bauxite washing with caustic soda, and followed by reacting it with a water glass after through the flushing and washing process. The composition of zeolite NaA is as follows: 33.87% SiO2, 27.63% Al2O3, 16.31% Na2O, and 22.18% H2O with Na96Al96Si96O384.216H2O or Na12(AlO2)12(SiO2)12.27H2O as its mineral composition.References
Aidha, N. N. (2013) “Aktivasi zeolit secara fisika dan kimia untuk menurunkan kadar kesadahan (Ca dan Mg) dalam air tanah,” Jurnal Kimia dan Kemasan, 35(1), pp. 58–64. doi: 10.24817/jkk.v35i1.1874.
Aziz, M. (2010) “Ekstraksi alumina dari residu bauksit untuk bahan baku zeolit sintetis dengan produk samping konsentrat besi,” Jurnal Zeolit Indonesia, 9(2), pp. 54–60.
Goenadi, D. H. (2004) “Teknologi pengolahan zeolit menjadi bahan yang memiliki nilai ekonomi tinggi,” Jurnal Zeolit Indonesia, 3(1), pp. 42–49.
Husaini et al. (2015) Persiapan pembangunan demo plant rotary drum scrubber 50 ton/jam dan optimalisasi PAC dan tawas dari tailing washed bauksit. Bandung: Puslitbang tekMIRA.
Kurniawan, R. Y. and Widiastuti, N. (2017) “Sintesis zeolit-A dari abu dasar batubara dengan pemisahan Fe dan Ca,” Jurnal Teknik ITS, 6(1), pp. C-17-C–20.
Kusdarto (2008) “Potensi zeolit di Indonesia,” Jurnal Zeolit Indonesia, 7(2), pp. 78–87. Available at: https://izindo.files.wordpress.com/2014/12/jzi-vol-7-no-2-2008.pdf.
Mustain, A., Wibawa, G., Nais, M. F. and Falah, M. (2014) “Synthesis of zeolite NaA from low grade (high impurities) Indonesian natural zeolite,” Indonesian Journal of Chemistry, 14(2), pp. 138–142. doi: 10.22146/ijc.21250.
Rulli, C. (2004) Sodium zeolite, Chemistry 503 Molecule Report. Available at: https://www.sas.upenn.edu/~crulli/Zeolite.htm.
Saputra, R. (2006) “Pemanfaatan zeolit sintetis sebagai alternatif pengolahan limbah industri,” Jurnal Hibah Bersaing, 3, pp. 1–8.
Saraswati, I. (2015) “Zeolite-A synthesis from glass,” Jurnal Sains dan Matematika, 23(4), pp. 112–115.
Selim, M. M., EL-Mekkawi, D. M., Aboelenin, R. M. M., Sayed Ahmed, S. A. and Mohamed, G. M. (2017) “Preparation and characterization of Na-A zeolite from aluminum scrub and commercial sodium silicate for the removal of Cd 2+ from water,” Journal of the Association of Arab Universities for Basic and Applied Sciences, 24(1), pp. 19–25. doi: 10.1016/j.jaubas.2017.05.002.
Sugiarti, S., Charlena and Aflakhah, N. A. (2017) “Zeolit Sintetis terfungsionalisasi 3-(trimetoksisilil)-1-propantiol sebagai adsorben kation Cu(II) dan biru metilena,” Jurnal Kimia VALENSI, 3(1), pp. 11–19.
Zhang, X., Chen, C. and Yang, R. (2016) “Synthesis of small crystals zeolite NaA by a two-step growth approach,” Digest Journal of Nanomaterials and Biostructures, 11(4), pp. 1271–1275.
Zozulya, D., Kullerud, K., Ravna, E., Savchenko, Y., Selivanova, E. and Timofeeva, M. (2018) “Mineralogical and geochemical constraints on magma evolution and late-stage crystallization history of the Breivikbotn silicocarbonatite, Seiland Igneous Province in Northern Norway: Prerequisites for zeolite deposits in carbonatite complexes,” Minerals, 8(11), p. 537. doi: 10.3390/min8110537.
Zulkarnain, Husaini, Syukri, S., Iriansyah, R., Sudirman, A., Supriatna, J. and Wijaya, K. (2010) Proses pengolahan zeolit dan bentonit skala pilot. Bandung: Puslitbang Teknologi Mineral dan Batubara.
Downloads
Published
Issue
Section
License
Indonesian Mining Journal provides immediate open access to its content on the principle that making research freely available to the public to supports a greater global exchange of knowledge.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
