journal article·2018-09

Hydrothermal synthesis of nano-kaolinite from K-feldspar

Jiangyan Yuan, Jing Yang, Hongwen Ma, Shuangqing Su, Qianqian Chang, Sridhar Komarneni

Ceramics International· Volume 44· Issue 13
Publisher page

Abstract

Abstract Development of sustainable routes for the synthesis of kaolinite in nano-scale (nano-kaolinite) is very significant for producing high quality kaolinite of paper-coating grade in kaolin industry. Duplicating chemical weathering processes in nature, two routes were developed and compared for the synthesis of nano-kaolinite from K-feldspar. Kaolinite of uniform plate-like morphology with thickness of around 14 nm was obtained in this study. Both synthesis routes may lead to the comprehensive utilization of K-feldspar for the synthesis of pure kaolinite for not only high quality paper-coatings but also medical and other uses.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Clay minerals and soil interactions · Concrete and Cement Materials Research · Building materials and conservation

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (37)

Show source-provided references
1. The change of phase composition in kaolinite- and illite-rich clay-based ceramic bodies10.1016/j.clay.2003.08.012 ↗
2. Chemical and structural variability of illitic phases formed from kaolinite in hydrothermal conditions10.1016/j.clay.2005.12.003 ↗
3. The suitability of thermally activated illite / smectite clay as raw material for geopolymer binders10.1016/j.clay.2009.08.026 ↗
4. H. Cheng, Q., Liu, 2007. The present research situation of ultra-fine kaolin in China. China Non-Metallic Min. Ind. Her. 6–8.
5. Synthesis of kaolinite from micas and K-depleted micas10.1346/CCMN.2007.0550603 ↗
6. The mechanism of dissolution of the feldspars: part II dissolution at conditions close to equilibrium10.1016/j.hydromet.2014.10.004 ↗
7. Chemical weathering of silicate rocks as a function of elevation in the southern Swiss Alps10.1016/0016-7037(92)90298-W ↗
8. Influence of synthesis pH on kaolinite “crystallinity” and surface preoperties10.1346/CCMN.2000.0480203 ↗
9. Morphology of kaolinite crystals synthesized under hydtothermal conditions10.1346/CCMN.1995.0430310 ↗
10. Coupled alkali-feldspar dissolution and secondary mineral precipitation in batch systems: 1. new experiments at 200 °C and 300 bars10.1016/j.chemgeo.2008.09.014 ↗
11. Geomycology: biogeochemical transformations of rocks, minerals, metals and radionuclides by fungi, bioweathering and bioremediation10.1016/j.mycres.2006.12.001 ↗
12. The hydrothermal alteration of feldspars in acid solutions between 300°C and 400°C10.2113/gsecongeo.39.8.578 ↗
13. Thermal treatment of mechanochemically activated kaolinite10.1016/S0040-6031(03)00184-9 ↗
14. Experimental study of the hydrothermal formation of kaolinite10.1016/S0009-2541(98)00180-6 ↗
15. Hydrothermal synthesis of kaolinite: method and characterization of synthetic materials10.1016/0169-1317(93)90001-H ↗
16. Synthesis of kaolinite with a high level of Fe3+ for A1 substitution10.1346/CCMN.2005.0530101 ↗
17. Crystallinity difference for various origin of kaolinites in coal measures
18. Effects of oxalic acid addition on the hydrothermal synthesis of kaolinite10.1007/s11771-000-0009-9 ↗
19. Ma · 2011
20. Hydrothermal crystallization of nano-kaolinite from precursor of acid treating Kalsilite: reactions and characterization
21. Preparation of potassium sulfate from K-feldspar by hydrothermal alkaline method: reaction principle and process evaluation
22. 20 Years Advances in Preparation of potassium salts from Potassic rocks A review10.1111/1755-6724.12617 ↗
23. Formation process of kaolinite from the amorphous mixture of silica and alumina
24. Modification and evaluation of Egyptian kaolinite as pigment for paper coating10.1016/j.powtec.2014.05.040 ↗
25. Chemical weathering in a tropical watershed, Luquillo Mountains, Puerto Rico: ii. Rate and mechanism of biotite weathering10.1016/S0016-7037(97)00336-0 ↗
26. General kinetic description of multioxide silicate mineral and glass dissolution10.1016/S0016-7037(01)00710-4 ↗
27. Statistical empirical index of chemical weathering in igneous rocks: a new tool for evaluating the degree of weathering10.1016/j.chemgeo.2007.02.017 ↗
28. The Hinckley index for kaolinites10.1180/claymin.1988.023.3.02 ↗
29. Applied clay science mechanochemically enhanced synthesis of isomorphously substituted kaolinites10.1016/j.clay.2011.04.002 ↗
30. Hydrothermal synthesis of kaolinite and its formation mechanism10.1346/CCMN.2010.0580104 ↗
31. Effects of the structure of silica-alumina gel on the hydrothermal synthesis of kaolinite10.1346/CCMN.1994.0420307 ↗
32. Applied clay science chemical and radiological characterization of clay minerals used in pharmaceutics and cosmetics10.1016/j.clay.2011.02.013 ↗
33. Aqueous alteration of potassium-bearing aluminosilicate minerals: from mechanism to processing10.1039/C4GC02084G ↗
34. Hydrothermal decomposition of K-feldspar in KOH-NaOH-H2O medium10.1016/j.hydromet.2015.05.014 ↗
35. Preparation of potassium sulfate and zeolite NaA from K-feldspar by a novel hydrothermal process10.1016/j.minpro.2016.08.017 ↗
36. Synthesis and characterization of kalsilite from microcline powder
37. H. Wang, Z. Zhang, World Kaolinite Market Research. China Non-Metallic Miner. Ind. (2008), pp. 58–62.