Title:
METHOD USING CRYSTAL DEPOSITION COATING FOR MODIFYING SURFACE OF FLY ASH FOR MANUFACTURING PAPER FILLER
Document Type and Number:
WIPO Patent Application WO/2018/023918
Kind Code:
A1
Abstract:
A method using crystal deposition coating for modifying surface of fly ash for manufacturing a paper filler. The method comprises: after vibration screening to select fly ash with particle diameter of 30-55 μm, evenly mixing the fly ash with a Ca(OH)2 solution under room temperature; bubbling CO2 gas from the bottom of a reaction vessel under a stirring condition to realize modification via crystal deposition coating.
Inventors:
FAN HUIMING (CN)
QI YANAN (CN)
LIU JIANAN (CN)
LI ZHE (CN)
QI YANAN (CN)
LIU JIANAN (CN)
LI ZHE (CN)
Application Number:
PCT/CN2016/110208
Publication Date:
February 08, 2018
Filing Date:
December 15, 2016
Export Citation:
Assignee:
UNIV SOUTH CHINA TECH (CN)
International Classes:
D21H17/69; D21H17/67
Domestic Patent References:
| WO2015101715A1 | 2015-07-09 |
Foreign References:
| CN1594185A | 2005-03-16 |
Other References:
HUIMING FAN ET AL.: "Improving fly ash whiteness and the influence of modified fly ash on the physical strength of paper", BIORESOURCES, vol. 10, no. 4, 31 December 2015 (2015-12-31), pages 7435
G. MONTES-HERNANDEZ ET AL.: "Mineral sequestration of C02 by aqueous carbonation of coal combustion fly-ash", JOURNAL OF HAZARDOUS MATERIALS, vol. 161, no. 2-3, 31 December 2009 (2009-12-31), pages 1347 - 1354, XP025681973
G. MONTES-HERNANDEZ ET AL.: "Mineral sequestration of C02 by aqueous carbonation of coal combustion fly-ash", JOURNAL OF HAZARDOUS MATERIALS, vol. 161, no. 2-3, 31 December 2009 (2009-12-31), pages 1347 - 1354, XP025681973
Attorney, Agent or Firm:
YOGO PATENT & TRADEMARK AGENCY LIMITED COMPANY (CN)
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