Synthesis of Analcime Crystals and Simultaneous Potassium Extraction from Natrolite Syenite
Joint Authors
Chen, Jian
Ma, Hongwen
Liu, Changjiang
Yuan, Jiangyan
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-03-09
Country of Publication
Egypt
No. of Pages
9
Abstract EN
Analcime single crystals were successfully synthesized from natrolite syenite powder (K2O 10.89%) and 92.6% of potassium was extracted simultaneously by means of soda roasting followed by alkali-hydrothermal method.
Effects of NaOH concentration, reaction temperature, and holding period on the analcime formation and potassium extraction were investigated systemically.
The results indicated that NaOH concentration plays an important role in determining the chemical composition of zeolites and size distribution; by turning the NaOH concentrations, three different pure zeolites (i.e., the phillipsite-Na, the analcime, and the sodalite) were prepared.
Besides, a higher temperature could accelerate the dissolution of K+ ions and enhance the crystallinity degree of zeolite.
The reactions involved in the analcime synthesis can be summarized as follows: sodium aluminum silicate dissolution → precipitation and dissolution of metastable zeolite-P → analcime nucleation → analcime growth.
The extraction ratio of K+ is associated with the types of synthesized zeolites, among which analcime is the most effective to promote potassium leaching out from zeolite lattice position.
The optimal condition for analcime crystallization and K+ leaching is found to be as follows: 175°C for 4 h in 0.5 mol/L NaOH solution.
American Psychological Association (APA)
Chen, Jian& Ma, Hongwen& Liu, Changjiang& Yuan, Jiangyan. 2017. Synthesis of Analcime Crystals and Simultaneous Potassium Extraction from Natrolite Syenite. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1123759
Modern Language Association (MLA)
Chen, Jian…[et al.]. Synthesis of Analcime Crystals and Simultaneous Potassium Extraction from Natrolite Syenite. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1123759
American Medical Association (AMA)
Chen, Jian& Ma, Hongwen& Liu, Changjiang& Yuan, Jiangyan. Synthesis of Analcime Crystals and Simultaneous Potassium Extraction from Natrolite Syenite. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1123759
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1123759