Preparation of Porous Anhydrous MgCl<sub>2</sub> Particles by Spray Drying Process

  • Prachya Rojanotaikul Chulalongkorn University
  • Sirachaya Kunjara Na Ayudhya Thai Polyethylene Co. Ltd.
  • Sumet Charoenchaidet Thai Polyethylene Co. Ltd.
  • Kajornsak Faungnawakij National Nanotechnology Center (NANOTEC)
  • Apinan Soottitantawat Chulalongkorn University
Keywords: Anhydrous MgCl2, spray drying, porous MgCl2 particles.

Abstract

Polyethylene (PE) is indispensable materials in daily lives. The catalyst is necessary to produce PE. Ziegler-Natta catalysts were mostly used to produce PE which consisted of MgCl2/TiCl4 system. Polyethylene particle was reported to replicate the shape of the catalyst particles or catalyst support particles. Therefore, the MgCl2 supports need to satisfy various requirements regarding particle morphology such as shape, particle size with uniform size distribution as well as the porosity. In this research, the preparation of MgCl2 particles from irregular shape of anhydrous MgCl2 by spray drying method was studied. However, because of the hygroscopic properties of anhydrous MgCl2, all steps of experiment in this work were operated under dry N2 atmosphere. The effect of type of alcohol, ethanol, n-propanol and n-butanol as solvent which was used to dissolve MgCl2 before feeding through the spray drying on the particle properties were investigated. The amount of residual alcohol (alcoholic hydroxyl group content), morphology, specific surface area, porosity and crystallinity were determined by GC method, scanning electron microscope (SEM), N2 sorption analyzer and X-ray diffraction (XRD), respectively. The results revealed that spray drying process can produce the porous anhydrous MgCl2 particles which have rough surface, higher porosity and lower crystallinity than original anhydrous MgCl2.

Downloads

Download data is not yet available.

Author Biographies

Prachya Rojanotaikul

Center of Excellence in Particle Technology, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand

Sirachaya Kunjara Na Ayudhya

Thai Polyethylene Co. Ltd., Map Ta Phut Industrial Estate, Muang District, Rayong 21150, Thailand

Sumet Charoenchaidet

Thai Polyethylene Co. Ltd., Map Ta Phut Industrial Estate, Muang District, Rayong 21150, Thailand

Kajornsak Faungnawakij

National Nanotechnology Center, National Science and Technology Development Agency, Thailand Science Park, Patumtani, Thailand

Apinan Soottitantawat

Center of Excellence in Particle Technology, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand

Published In
Vol 16 No 3, Feb 27, 2012
How to Cite
[1]
P. Rojanotaikul, S. Kunjara Na Ayudhya, S. Charoenchaidet, K. Faungnawakij, and A. Soottitantawat, “Preparation of Porous Anhydrous MgCl<sub>2</sub&gt; Particles by Spray Drying Process”, Eng. J., vol. 16, no. 3, pp. 109-114, Feb. 2012.

Most read articles by the same author(s)