Email this article Use of Ultrasonic Processing at Early Stages of LTA Zeolite Synthesis from Metakaolin
- Authors: Gordina N.E.1, Prokof’ev V.Y.1, Kul’pina Y.N.1, Petukhova N.V.1, Gazakhova S.I.1, Khmylova O.E.1
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Affiliations:
- Scientific-Research Institute of Thermodynamics and Kinetics of Chemical Processes, Ivanovo State University of Chemical Technology
- Issue: Vol 73, No 9-10 (2017)
- Pages: 334-337
- Section: At Enterprises and Institutes
- URL: https://journals.rcsi.science/0361-7610/article/view/244704
- DOI: https://doi.org/10.1007/s10717-017-9884-5
- ID: 244704
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Abstract
The influence of ultrasonic processing (22 kHz) of a suspension of metakaolin, aluminum oxide, and sodium hydroxide with molar ratio Al2O3 · 2SiO2: NaOH : Al2O3 = 6 : 12 : 2, followed by heat-treatment and hydrothermal crystallization on LTA zeolite synthesis, is investigated. It is found that by increasing the S : L ratio at the ultrasonic processing stage it is possible to increase the yield of the desired product. The optimal conditions of ultrasonic processing are determined (amplitude 8 μm, time about 10 min). It is shown that under the optimal conditions the degree of crystallinity of LTA zeolite equals 98%. The mechanisms of LTA zeolite synthesis by means of ultrasonic processing and mechano-chemical activation are compared.
About the authors
N. E. Gordina
Scientific-Research Institute of Thermodynamics and Kinetics of Chemical Processes, Ivanovo State University of Chemical Technology
Author for correspondence.
Email: gordina@isuct.ru
Russian Federation, Ivanovo
V. Yu. Prokof’ev
Scientific-Research Institute of Thermodynamics and Kinetics of Chemical Processes, Ivanovo State University of Chemical Technology
Email: gordina@isuct.ru
Russian Federation, Ivanovo
Yu. N. Kul’pina
Scientific-Research Institute of Thermodynamics and Kinetics of Chemical Processes, Ivanovo State University of Chemical Technology
Email: gordina@isuct.ru
Russian Federation, Ivanovo
N. V. Petukhova
Scientific-Research Institute of Thermodynamics and Kinetics of Chemical Processes, Ivanovo State University of Chemical Technology
Email: gordina@isuct.ru
Russian Federation, Ivanovo
S. I. Gazakhova
Scientific-Research Institute of Thermodynamics and Kinetics of Chemical Processes, Ivanovo State University of Chemical Technology
Email: gordina@isuct.ru
Russian Federation, Ivanovo
O. E. Khmylova
Scientific-Research Institute of Thermodynamics and Kinetics of Chemical Processes, Ivanovo State University of Chemical Technology
Email: gordina@isuct.ru
Russian Federation, Ivanovo
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