EP0237074A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Process for separating oxygen from air
Assignee: Tosoh Corp
•
Filing: 1987-03-12
•
Granted: —
•
Expires: 2007-03-12
Abstract
Abstract A molded zeolite body exhibiting excellent selective absorbing and desorbing properties is prepared by hydrating a molded and calcined zeolite body and then heating the hydrated body. The thus-prepared molded zeolite body is used as an absorbing separating agent for the pressure swing adsorption-desorption method for separating oxygen in air.
Inventors
- 👤 Wataru Inaoka
- 👤 Michiyuki Aimoto
- 👤 Satoru Morishita
- 👤 Hiroichi Tsunoda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 20:56
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/047; C; C01; C01B; C01B13/00; C01B13/02; C01B13/0229; C01B13/0248; C01B13/0259; C01B13/0262; C01B13/027; B01D2253/00; B01D2253/10; B01D2253/106; B01D2253/108; B01D2253/1085
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
28 words
A process for the preparation of a molded zeolite body, characterized in that a molded and calcined zeolite body is hydrated and the hydrated body is then heated.
Claim 2
Dependent Claim
28 words
A process for the preparation of a molded zeolite body, characterized in that a molded and calcined zeolite body is hydrated and the hydrated body is then heated.
Claim 3
Dependent Claim
13 words
A process according to claim 1, wherein the zeolite is 5A type zeolite.
Claim 4
Dependent Claim
36 words
A process according to claim 1 or 2, wherein the molded and calcined zeolite body is hydrated to an extent such that the water content is 5 to 20% by weight based on the dry body.
Claim 5
Dependent Claim
28 words
A process according to any of claims 1 through 3, wherein the hydrated body is heated at a temperature of 300 to 500°C for at least 30 minutes.
Claim 6
Dependent Claim
47 words
An adsorbing separating agent for the pressure swing adsorption-desorption method for separating oxygen in air, which is composed of a molded and calcined zeolite body, characterized in that said zeolite body is prepared by hydrating a molded and calcined zeolite body and the heating the hydrated body.
Claim 7
Dependent Claim
47 words
An adsorbing separating agent for the pressure swing adsorption-desorption method for separating oxygen in air, which is composed of a molded and calcined zeolite body, characterized in that said zeolite body is prepared by hydrating a molded and calcined zeolite body and the heating the hydrated body.
Claim 8
Independent Claim
47 words
A method for separating oxygen in air according to the pressure swing adsorption-desorption method wherein air is contacted with a molded and calcined zeolite body, characterized in that said zeolite body is prepared by hydrating a molded and calcined zeolite body and then heating the hydrated body.
Claim 9
Independent Claim
47 words
A method for separating oxygen in air according to the pressure swing adsorption-desorption method wherein air is contacted with a molded and calcined zeolite body, characterized in that said zeolite body is prepared by hydrating a molded and calcined zeolite body and then heating the hydrated body.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.