Title:
METHOD FOR PREPARING FUNCTIONAL NANOPOROUS SILICA POWDER
Document Type and Number:
WIPO Patent Application WO/2016/186424
Kind Code:
A1
Abstract:
The present invention relates to a method for preparing a functional nanoporous silica powder and, more specifically, to a method, wherein silicate and an inorganic acid, which are supplied in a continuous quantitative constant-rate manner by a central controller, are controlled to form wet nanoporous silica by a continuous high-rate instant uniform mix reaction apparatus and a mixer; a predetermined silane compound is added to a suspension with appropriate pH maintained, which is obtained by adding an aqueous inorganic or organic acid solution to the wet nanoporous silica, in a dispersive mixing reactor in a quantitative constant-rate manner by the central controller, thereby forming a silane polyol; and a suspension, which is obtained by a mixing and dispersion reaction of the silane polyol and the nanoporous silica, is subjected to thin film instant drying and continuous heating drying using a multi-stage continuous complex reaction drying apparatus, leading to stepwise chemical binding through hydrogen binding and dehydration condensation of the silane polyol and a surface of the nanoporous silica, which exist in the dispersion, thereby productively and economically preparing a nanoporous silica powder having functionality.
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Inventors:
LEE YOUNG JAE (KR)
KU BON WOO (KR)
KU BON WOO (KR)
Application Number:
PCT/KR2016/005191
Publication Date:
November 24, 2016
Filing Date:
May 17, 2016
Export Citation:
Assignee:
LEE YOUNG JAE (KR)
KU BON WOO (KR)
KU BON WOO (KR)
International Classes:
C01B33/18; B01J4/00; B01J4/02; B01J8/08; B01J19/00; B01J19/24
Foreign References:
| KR20070058089A | 2007-06-07 | |||
| KR20130012089A | 2013-02-01 | |||
| KR100824291B1 | 2008-04-22 | |||
| KR20100096770A | 2010-09-02 | |||
| KR20090050237A | 2009-05-20 |
Attorney, Agent or Firm:
HONG, Byung-Eui (KR)
홍병의 (KR)
홍병의 (KR)
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