Title:
ADSORPTION OF CO2
Document Type and Number:
Japanese Patent JP3223545
Kind Code:
B2
Abstract:
PURPOSE: To increase the adsorbing amount of CO2 and to adsorb CO2 on zeolite at relatively low temp.
CONSTITUTION: Zeolite is added to an aqueous solution containing a transition metal ion and the resulting dispersion is refluxed under heating to subject a metal in zeolite to the ion exchange with a transition metal to form a transition metal supported zeolite or sodium aluminate aqueous solution. When this aqueous solution is reacted with a sodium silicate aqueous solution, transition metal supported zeolite A obtained by adding an aqueous solution of an inorg. salt of a transition metal to a zeolite synthesizing mother liquid to react both of them is used as an adsorbent to be brought into contact with CO2 (-containing gas) at about 20-100°C.
Inventors:
Namba Takemi
Application Number:
JP32150991A
Publication Date:
October 29, 2001
Filing Date:
November 11, 1991
Export Citation:
Assignee:
NOK Co., Ltd.
International Classes:
B01D53/02; B01D53/34; B01D53/62; B01J20/18; (IPC1-7): B01D53/62; B01D53/02; B01J20/18
Domestic Patent References:
| JP6117413A | ||||
| JP6118431A |
Attorney, Agent or Firm:
Toshio Yoshida