Production of Nano Amorphous SiO2 from Malatya Pyrophyllite

World Multidisciplinary Earth Sciences Symposium 2016

Sarikaya, Musa^1 ; Depci, Tolga^1 ; Aydogmus, Ramazan^1 ; Yucel, Aysegul^1 ; Kizilkaya, Nilgun^1

Department of Mining Engineering, Inonu University, Malatya, Turkey^1

关键词: Alkaline treatment;    Amorphous SiO2;    High purity;    Nano Silica;    Nano silica powder;    Nano-size;    Structures and properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/44/5/052004/pdf
DOI  :  10.1088/1755-1315/44/5/052004

来源: IOP

【 摘 要 】

Pyrophyllite (Al4Si8O20(OH)4) is an important industrial clay mineral. In this paper, highly pure nano silica powder was synthesized by alkaline treatment method from the local pyrophyllite deposit which is in Malatya, Turkey. The morphologies, structures and properties of the raw pyrophyllite and the obtained nano amorphous SiO2were determined by XRF, XRD, ATR, SEM and EDX. The results showed that the nano silica can be produced with a high purity (98%) and nano size (