Title:
METHOD FOR PREPARING Β-EUCRYPTITE BY MECHANOCHEMICAL ACTIVATION AND CALCINATION, AND Β-EUCRYPTITE OBTAINED THEREBY
Document Type and Number:
WIPO Patent Application WO/2014/168299
Kind Code:
A1
Abstract:
Disclosed are a method for preparing β-eucryptite by mechanochemical activation and calcination, and β-eucryptite obtained by the method. The method for preparing β-eucryptite by mechanochemical activation and calcination comprises the steps of: (A) preparing materials comprising pyrophyllite (Al2O3·4SiO2·H2O), gibbsite (Al2O3·3H2O) and lithium carbonate (Li2CO3); (B) planetary milling the prepared materials and mixing the same; and (C) calcining the mixed materials. At this time, the materials can be amorphized. In addition, the planetary milling can be carried out for 90-120 minutes and the calcination can be carried out at 900-1,000℃ for 60-90 minutes.
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Inventors:
KIM WAN-TAE (KR)
KIM SANG-BAE (KR)
KIM KWAN-HO (KR)
LEE HOON (KR)
KIM SANG-BAE (KR)
KIM KWAN-HO (KR)
LEE HOON (KR)
Application Number:
PCT/KR2013/007610
Publication Date:
October 16, 2014
Filing Date:
August 26, 2013
Export Citation:
Assignee:
KOREA INST GEOSCIENCE & MINERA (KR)
International Classes:
C04B35/10; C04B35/14; C04B35/64
Foreign References:
| KR940010089B1 | 1994-10-21 | |||
| KR20120075821A | 2012-07-09 | |||
| JP2001056835A | 2001-02-27 |
Other References:
PARK, H. S. ET AL.: "The Study on Fabrication of LAS System Ceramics for Thermal Shock Resistance from Silicates Minerals", JOURNAL OF THE KOREAN CERAMIC SOCIETY, vol. 31, 1994, pages 572 - 580
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
특허법인 대아 (KR)
특허법인 대아 (KR)
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