Synthesis of Zeolite A from Iraqi Natural Kaolin Using a Conventional Hydrothermal Synthesis Technique

  • Ali Mohammed Salih Department of Geology, Kurdistan Institution for Strategic Studies and Scientific Research, Sulaimani, Kurdistan Region - F.R. Iraq http://orcid.org/0000-0003-0968-3250
  • Craig Williams Department of Chemistry and Forensic Science, School of Biology, Faculty of Science and Engineering, University of Wolverhampton, UK http://orcid.org/0000-0002-3834-7398
  • Polla A Khanaqa Kurdistan Institution for Strategic Studies and Scientific Research (KISSR), Sulaimani, Kurdistan Region – F.R. Iraq http://orcid.org/0000-0003-1045-8720
Keywords: Zeolite A, Kaolin, Metakaolin, Hydrothermal synthesis.

Abstract

The synthesis of zeolite materials by hydrothermal transformation of kaolin using a conventional hydrothermal method was investigated. Different analytical techniques were used to characterize the starting kaolin and produced zeolite A samples, including scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), x-ray diffraction (XRD), x-ray fluorescence (XRF), thermogravimetric analysis (TGA), and Fourier transform infrared (FT-IR) spectroscopy. The synthetic zeolite type A was obtained after activation of kaolin and metakaolin followed by different thermal and chemical treatments. The metakaolinization phase was achieved by calcining the kaolin in air at 600°C for 3 hours, a much lower temperature than previously reported in the literature. Metakaolin was treated with 3 M sodium hydroxide solution at a ratio of 1:5 and, using stainless steel autoclaves with teflon liners, heated the mixture to 200°C in a microwave for 24 hours. The results from this synthesis route showed that zeolite A with a cubic crystal habit has been successfully synthesized.

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Author Biographies

Ali Mohammed Salih, Department of Geology, Kurdistan Institution for Strategic Studies and Scientific Research, Sulaimani, Kurdistan Region - F.R. Iraq

Dr. Ali Mohammed Salih; Head of  Geology Department, Kurdistan Institution for Strategic Studies and Scientific Research (K.I.S.S.R.), teaching environmental sciences and EHS course. Working and leading a team in environmental health and safety department and research center. He has completed PhD program and MSc course at university of Wolverhampton in the UK.  The previous work and study enabled him to re-focus onto the application of technological solutions to environmental problems.  Building No. 10, Alley 60, Gullabax 335, Shorsh Street, Sulaimaniyah, Kurdistan Region Iraq,  http://www.kissr.edu.krd

Craig Williams, Department of Chemistry and Forensic Science, School of Biology, Faculty of Science and Engineering, University of Wolverhampton, UK

Craig has over 25 years’ experience within the zeolite community. After his PhD studies, Craig worked as a research fellow at Edinburgh and Liverpool Universities. In 1990 he joined the staff at Wolverhampton and in 1993 established the meso and microporous research group to study the problems involved in zeolite synthesis and isomorphous substitution. This group now has 27 successfully completed PhD studies. He is an internationally leading figure in the synthesis of metal substituted zeolite frameworks. To date five patents and over 80 publications on various aspects of zeolite science in refereed journals have been produced. In 1999 he was elected a Fellow of the Royal Society of Chemistry (RSC) and has served as Secretary and Chair of the Analytical Division of the Midlands Region of the RSC and Secretary of the Industrial Inorganic Chemicals Sector of the RSC. He is also immediate past Secretary of the British Zeolite Association (BZA).

Polla A Khanaqa, Kurdistan Institution for Strategic Studies and Scientific Research (KISSR), Sulaimani, Kurdistan Region – F.R. Iraq

Prof. Dr. rer. nat. Geol. Polla A. Khanaqa; Founder & President of: Kurdistan Institution for Strategic Studies and Scientific Research (K.I.S.S.R.), scientist with experiences as a University lecturer and with management experiences, and competences in the field of higher education and scientific research. He pursued his education in Germany and he obtained a Ph.D. in the field of Geology at Georg-August University of Göttingen in in 1997. Five years after completing his PhD, Professor Khanaqa obtained his post doctorate at the same University. Building No. 10, Alley 60, Gullabax 335, Shorsh Street, Sulaimaniyah, Kurdistan Region Iraq http://www.kissr.edu.krd

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Published
2020-12-31
How to Cite
Salih, A. M., Williams, C., & Khanaqa, P. (2020, December 31). Synthesis of Zeolite A from Iraqi Natural Kaolin Using a Conventional Hydrothermal Synthesis Technique. UKH Journal of Science and Engineering, 4(2), 11-23. https://doi.org/https://doi.org/10.25079/ukhjse.v4n2y2020.pp11-23
Section
Research Articles
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