Title:
POROUS SILICA-ALUMINA PARTICLES AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/176493
Kind Code:
A1
Abstract:
Provided are porous silica-alumina particles which contain crystalline boehmite alumina and which include a high proportion of pores having relatively large diameters with respect to the total pore volume. The porous silica-alumina particles include crystalline boehmite alumina, wherein: the specific surface area SA measured by the BET method is in the range from 400 to 600 m2/g; the pore volume PV measured by the BJH method is in the range from 1.0 to 2.2 ml/g; the ratio P10 of the pore volume of pore diameters PD of at least 10 nm, measured by the BJH method, relative to the total pore volume is in a range of at least 60%; and the silica to alumina mass ratio S/A is in the range from 2/98 to 70/30.
Inventors:
MIWA YUKI (JP)
SETO YUKA (JP)
MITSUI TOMOHIRO (JP)
SETO YUKA (JP)
MITSUI TOMOHIRO (JP)
Application Number:
PCT/JP2023/007945
Publication Date:
September 21, 2023
Filing Date:
March 03, 2023
Export Citation:
Assignee:
JGC CATALYSTS & CHEMICALS LTD (JP)
International Classes:
C01B33/18; C01B33/12; C01F7/141
Domestic Patent References:
| WO2022196025A1 | 2022-09-22 |
Foreign References:
| CN113813947A | 2021-12-21 | |||
| JP2021151942A | 2021-09-30 | |||
| JP2022510847A | 2022-01-28 | |||
| JPH02144145A | 1990-06-01 |
Attorney, Agent or Firm:
GINZA MARONIE P.C. (JP)
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