Title:
REGENERATING METHOD FOR ACTIVATED ALUMINA USED IN REGENERATING WORKING FLUID OF HYDROGEN PEROXIDE
Document Type and Number:
WIPO Patent Application WO/2009/026793
Kind Code:
A1
Abstract:
A regenerating method for activated alumina used in regenerating working fluid of hydrogen peroxide comprises the following steps: adding deactivated alumina discharged from a regenerating bed for working fluid of hydrogen peroxide with fire resistant alumina into a reactor through the top of the reactor and settling by gravity, oxidizing atmosphere entering into the reactor from the bottom of the reactor and running upwardly, discharging regenerated alumina and fire resistant alumina through the discharging device on the bottom of the reactor, discharging exit gas through the discharge port on the top of the reactor, the reaction temperature ranging from 360-800 °C, the residence time of solid feed in the reactor ranging from 3-15 h. The method is economic, environment-protective, safe, low-costly. The regenerated alumina will not poison palladium catalyst.
Inventors:
LI FUQING (CN)
MA XINSHENG (CN)
CHEN GANG (CN)
WU QIUFANG (CN)
CHEN GUOJIAN (CN)
GAN YUBAO (CN)
YANG JINGHUI (CN)
MA XINSHENG (CN)
CHEN GANG (CN)
WU QIUFANG (CN)
CHEN GUOJIAN (CN)
GAN YUBAO (CN)
YANG JINGHUI (CN)
Application Number:
PCT/CN2008/070200
Publication Date:
March 05, 2009
Filing Date:
January 28, 2008
Export Citation:
Assignee:
SHANGHAI HUAMING HI TECH GROUP (CN)
LI FUQING (CN)
MA XINSHENG (CN)
CHEN GANG (CN)
WU QIUFANG (CN)
CHEN GUOJIAN (CN)
GAN YUBAO (CN)
YANG JINGHUI (CN)
LI FUQING (CN)
MA XINSHENG (CN)
CHEN GANG (CN)
WU QIUFANG (CN)
CHEN GUOJIAN (CN)
GAN YUBAO (CN)
YANG JINGHUI (CN)
International Classes:
B01J21/20; B01J38/14; B01J38/12
Foreign References:
| CN1317994A | 2001-10-17 | |||
| CN1541140A | 2004-10-27 | |||
| CN1201718A | 1998-12-16 |
Attorney, Agent or Firm:
J.Z.M.C PATENT AND TRADEMARK LAW OFFICE (Room 5022 No.335, Guoding Road, YANG Pu, Shanghai 3, CN)
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