Synthesis and ion exchange of zeolites produced from kaolin for separation of oxygen from atmospheric air
Source abstract
Abstract
Abstract Lithium‐based zeolites are the most commonly used materials in PSA (pressure swing adsorption) oxygen concentration from atmospheric air. Synthesizing these adsorbents using mineral raw materials adapts to worldwide environmental requests, as only high‐purity chemical reactants such as aluminates and silicates are usually used. The present work aims to synthesize and characterize zeolites using kaolin as raw material by studying the influence of the metakaolinization temperature and SiO 2 /Al 2 O 3 and H 2 O/Na 2 O molar ratios by experimental design. Ion exchange was used to incorporate lithium into synthesized zeolites. Kaolin was treated thermically and characterized, and zeolites were synthesized by a hydrothermal reaction. After synthesis, ionic exchange of Na + ions by Li + was performed. The results indicated the presence of three main phases, zeolites A, X, and P. Using ANOVA, it was found that the factors that contributed significantly to the formation of zeolite X were the H 2 O/Na 2 O and SiO 2 /Al 2 O 3 molar ratios. For zeolite A, the major influence was by the metakaolinization temperature and for zeolite P none of the factors was influential. Zeolites that incorporated higher amounts of lithium showed higher N 2 adsorption potential, indicating that even without pure phases formed, it was possible to obtain similar adsorption efficiency to commercial zeolite.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Zeolite Catalysis and Synthesis · Clay minerals and soil interactions · Chemical Synthesis and Characterization
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Laborarory of Development and Characterization of Biomaterials and Antimicrobial Materials (LADEBIMA) Postgraduate Program in Materials Science and Engineering Universidade do Extremo Sul Catarinense (UNESC) Science and Technology Park (Iparque) Criciúma Santa Catarina Brazil
Beneficent Association of the Santa Catarina Coal Industry (SATC) Criciúma Santa Catarina Brazil
Funding
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior · Fundação de Amparo à Pesquisa e Inovação do Estado de Santa Catarina
References (44)
Show source-provided references
1. 10.1016/j.apsusc.2013.11.06410.1016/j.apsusc.2013.11.064 ↗
2. 10.1016/j.matlet.2018.10.13910.1016/j.matlet.2018.10.139 ↗
3. 10.1016/j.micromeso.2019.06.00910.1016/j.micromeso.2019.06.009 ↗
4. 10.1016/j.micromeso.2017.04.03010.1016/j.micromeso.2017.04.030 ↗
5. 10.1080/00986445.2011.62506510.1080/00986445.2011.625065 ↗
6. Synthesis and characterization of zeolite A by hydrothermal transformation of natural Jordanian kaolin
7. 10.1016/j.clay.2016.07.01910.1016/j.clay.2016.07.019 ↗
8. 10.2166/wpt.2018.11610.2166/wpt.2018.116 ↗
9. Adsorption of CO 2 on Zeolite 13X prepared from modified Natural Iranian kaolin
10. Application of Illite‐ and kaolinite‐rich clays in the synthesis of zeolites for wastewater treatment
11. 10.1016/j.desal.2010.03.05210.1016/j.desal.2010.03.052 ↗
12. Characterization and cracking activity of zeolite prepared from local kaolin10.31699/IJCPE.2010.2.4 ↗
13. 10.1016/j.micromeso.2005.09.00710.1016/j.micromeso.2005.09.007 ↗
14. 10.1016/j.micromeso.2004.03.00310.1016/j.micromeso.2004.03.003 ↗
15. Effect of crystallization time on the hydrothermal synthesis of zeolites from kaolin and bauxite
16. 10.1016/j.micromeso.2019.05.06210.1016/j.micromeso.2019.05.062 ↗
17. 10.1016/j.apsusc.2016.09.16110.1016/j.apsusc.2016.09.161 ↗
18. 10.1007/s10934-012-9631-910.1007/s10934-012-9631-9 ↗
19. 10.1016/j.clay.2011.02.01710.1016/j.clay.2011.02.017 ↗
20. 10.1016/j.materresbull.2018.07.02110.1016/j.materresbull.2018.07.021 ↗
21. 10.3390/ma1106090610.3390/ma11060906 ↗
22. 10.1039/c2gc36101a10.1039/c2gc36101a ↗
23. 10.1016/j.micromeso.2012.06.02810.1016/j.micromeso.2012.06.028 ↗
24. 10.1016/j.powtec.2017.07.03910.1016/j.powtec.2017.07.039 ↗
25. 10.1016/j.micromeso.2018.04.03810.1016/j.micromeso.2018.04.038 ↗
26. 10.1021/ba-1971-0101.ch00110.1021/ba-1971-0101.ch001 ↗
27. 10.1016/S1387-1811(98)00211-X10.1016/S1387-1811(98)00211-X ↗
28. 10.1016/j.clay.2013.02.00310.1016/j.clay.2013.02.003 ↗
29. 10.1016/j.clay.2019.01.01010.1016/j.clay.2019.01.010 ↗
30. 10.1590/0366-6913201965373242310.1590/0366-69132019653732423 ↗
31. 10.1023/A:100963260667110.1023/A:1009632606671 ↗
32. 10.1346/CCMN.2014.062060510.1346/CCMN.2014.0620605 ↗
33. 10.1016/j.clay.2014.06.00510.1016/j.clay.2014.06.005 ↗
34. 10.1016/j.clay.2017.03.03810.1016/j.clay.2017.03.038 ↗
35. 10.1016/S0144-2449(97)00132-210.1016/S0144-2449(97)00132-2 ↗
36. 10.1016/j.clay.2006.06.00710.1016/j.clay.2006.06.007 ↗
37. 10.1007/s11631-010-0130-x10.1007/s11631-010-0130-x ↗
38. In situ synthesis of NaY zeolite with coal‐based kaolin
39. 10.1016/j.jcrysgro.2018.02.02210.1016/j.jcrysgro.2018.02.022 ↗
40. 10.1180/claymin.1992.027.1.1210.1180/claymin.1992.027.1.12 ↗
41. 10.1016/j.apenergy.2017.01.03110.1016/j.apenergy.2017.01.031 ↗
42. 10.1016/j.ces.2018.12.04810.1016/j.ces.2018.12.048 ↗
43. 10.1016/j.micromeso.2008.02.03010.1016/j.micromeso.2008.02.030 ↗
44. 10.1016/S0169-1317(97)00008-210.1016/S0169-1317(97)00008-2 ↗