Material for gas separation

• US 4,818,255 A
• Filed: 02/09/1988
• Issued: 04/04/1989
• Est. Priority Date: 02/10/1987
• Status: Expired due to Fees

• Current Assignee: KOZO Izuka Director-General of Agency of Industrial Science and Technology
• Original Assignee: Iizuka KOZO Director-General of Agency of Industrial Science and Technology
• Inventors: Matsuura, Junichi, Okada, Munehisa, Oguchi, Tatsuki
• Primary Examiner(s): SPITZER, ROBERT H
• Application Number:
  US07/154,043
• Time in Patent Office: 420 Days
• Field of Search: 55/16, 55/68, 55/74, 55/158, 55/387, 423/246, 423/247, 252/189, 252/190, 585/818, 585/819, 585/845, 585/849
• US Class Current: 95/44
• CPC Class Codes: B01D 53/1493 Selection of liquid materials for use as absorbents
• CPC Class Codes: B01D 61/38 Liquid-membrane separation
• CPC Class Codes: C01B 2203/0415 Purification by absorption in liquids
• CPC Class Codes: C01B 2203/0465 Composition of the impurity
• CPC Class Codes: C01B 2203/047 the impurity being carbon monoxide
• CPC Class Codes: C01B 2203/0475 the impurity being carbon dioxide
• CPC Class Codes: C01B 3/503 characterised by the membrane
• CPC Class Codes: C01B 3/52 by contacting with liquids; Regeneration of used liquids C01B3/508 takes precedence
• CPC Class Codes: C01B 32/40 Carbon monoxide

Abstract

A material for gas separation obtained by mixing a copper compound and a benzoin and/or an ascorbic acid in a solvent.

Claims

1. A material for gas separation obtained by mixing a copper compound and a benzoin and/or an ascorbic acid in a solvent.

2. The material for gas separation according to claim 1, wherein the solvent is at least one member selected from the group consisting of an imidazole, a pyridine and a polyethylenepolyamine.

3. The material for gas separation according to claim 2, wherein at least one of the copper compound, the benzoin, the ascorbic acid, the imidazole, the pyridine and the polyethylenepolyamine is bound to or supported on a membrane- or particle-form polymer carrier.

4. A selective gas permeation membrane comprising a supporting membrane and a material for gas separation as defined in claim 1, supported thereon.

5. A method for gas separation, wherein a selective gas permeation membrane as defined in claim 4 is used.

6. A method for gas separation, wherein a material for gas separation as defined in claim 1 is used as a selective gas absorbing solution.

7. A method for gas separation, wherein a material for gas separation as defined in claim 1 is used for separating carbon monoxide in good yield from a gas mixture containing carbon monoxide.

8. A composition for gas separation comprising (a) a reaction mixture obtained by mixing a copper compound and a benzoin and/or an ascorbic acid in a solvent and (b) a reaction mixture obtained by mixing a palladium compound and an alkene in a solvent.

9. The composition for gas separation according to claim 8, wherein the solvent is at least one member selected from the group consisting of an imidazole, a pyridine and a polyethylenepolyamine.

10. The composition for gas separation according to claim 9, wherein at least one of the copper compound, the benzoin, the ascorbic acid, the imidazole, the pyridine and the polyethylenepolyamine is bound to or supported on a membrane- or particle-form polymer carrier.

11. A selective gas permeation membrane comprising a supporting membrane and a composition for gas separation as defined in claim 8, supported thereon.

12. A method for gas separation, wherein a selective gas permeation membrane as defined in claim 11 is used.

13. A method for gas separation, wherein a composition for gas separation as defined in claim 8 is used as a selective gas absorbing solution.

14. A method for gas separation, wherein a composition for gas separation as defined in claim 8 is used for separating carbon monoxide in good yield from a gas mixture containing carbon monoxide.

15. A composition for gas separation comprising (a) a reaction product of oxygen with a reaction mixture obtained by mixing a copper compound and a benzoin and/or an ascorbic acid in a solvent and (b) a reaction mixture obtained by mixing a palladium compound and an alkene in a solvent.

16. The composition for gas separation according to claim 15, wherein the solvent is at least one member selected from the group consisting of an imidazole, a pyridine and a polyethylenepolyamine.

17. The composition for gas separation according to claim 16, wherein at least one of the copper compound, the benzoin, the ascorbic acid, the imidazole, the pyridine and the polyethylenepolyamine is bound to or supported on a membrane- or particle-form polymer carrier.

18. A selective gas permeation membrane comprising a supporting membrane and a composition for gas separation as defined in claim 15, supported thereon.

19. A method for gas separation, wherein a selective gas permeation membrane as defined in claim 18 is used.

20. A method for gas separation, wherein a composition for gas separation as defined in claim 15 is used as a selective gas absorbing solution.

21. A method for gas separation, wherein a composition for gas separation as defined in claim 15 is used for separating carbon monoxide in good yield from a gas mixture containing carbon monoxide.