Synthesis of Potassium Octatitanate Whisker from Natural Rutile Ore using the Ion Exchange Reaction

금홍석으로부터 이온교환에 의한 Potassium Octatitanate Whisker의 합성

  • Lee, Chul-Tae (Dept. of Chem. Eng., College of Eng., Dankook Univ.) ;
  • Lee, Jin-Sik (Dept. of Chem. Eng., College of Eng., Dankook Univ.) ;
  • Ko, Du-Wan (Dept. of Chem. Eng., College of Eng., Dankook Univ.) ;
  • Kim, Hyun-Joong (Dept. of Chem. Eng., College of Eng., Dankook Univ.)
  • 이철태 (단국대학교 공과대학 화학공학과) ;
  • 이진식 (단국대학교 공과대학 화학공학과) ;
  • 고두완 (단국대학교 공과대학 화학공학과) ;
  • 김현중 (단국대학교 공과대학 화학공학과)
  • Received : 1997.01.17
  • Accepted : 1997.03.07
  • Published : 1997.06.10

Abstract

The initial product was prepared by heating for 3 hrs at $1000^{\circ}C$ using a mixture of the rutile sand and industral $K_2CO_3$ in the molar ratio 2.0. And the intermediate product, fibrous potassium tetratitanate of layer structure, was obtained by the boiling water treatment of 10hrs for initial product using the calcination method. Also $KHTi_4O_9{\cdot}1.1H_2O$ was synthesized by ion exchange reaction through the acid treatment for 30 min at 0.005M HCl solution and then $K_2Ti_8O_{17}$ whisker of $length=10{\mu}m$, $diameter=0.2{\mu}m$ was synthesized by heat treatment at temperature range of $400{\sim}600^{\circ}C$.

Keywords

Acknowledgement

Supported by : 한국과학재단

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