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1. (WO1998050332) SEPARATION OF CO¿2? FROM UNSATURATED FLUORINATED COMPOUNDS BY SEMIPERMEABLE MEMBRANE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/050332 International Application No.: PCT/US1998/008922
Publication Date: 12.11.1998 International Filing Date: 01.05.1998
Chapter 2 Demand Filed: 27.11.1998
IPC:
B01D 53/22 (2006.01) ,C07C 17/38 (2006.01) ,C07C 41/36 (2006.01) ,C07C 43/17 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
22
by diffusion
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
17
Preparation of halogenated hydrocarbons
38
Separation; Purification; Stabilisation; Use of additives
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
41
Preparation of ethers; Preparation of compounds having groups, groups or groups
01
Preparation of ethers
34
Separation; Purification; Stabilisation; Use of additives
36
by solid-liquid treatment; by chemisorption
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
43
Ethers; Compounds having groups, groups or groups
02
Ethers
03
having all ether-oxygen atoms bound to acyclic carbon atoms
14
Unsaturated ethers
17
containing halogen
Applicants:
E.I. DU PONT DE NEMOURS AND COMPANY [US/US]; 1007 Market Street Wilmington, DE 19898, US
Inventors:
O'BRIEN, William, G.; US
NOELKE, Charles, J.; US
HARKER, Raymond, C.; US
Agent:
HENDRICKSON, John, S.; E.I. du Pont de Nemours and Company Legal Patent Records Center 1007 Market Street Wilmington, DE 19898, US
Priority Data:
60/045,44002.05.1997US
Title (EN) SEPARATION OF CO2 FROM UNSATURATED FLUORINATED COMPOUNDS BY SEMIPERMEABLE MEMBRANE
(FR) EXTRACTION DE CO2 DANS LES COMPOSES FLUORES INSATURES PAR MEMBRANE SEMIPERMEABLE
Abstract:
(EN) A process for separating carbon dioxide from an unsaturated fluorinated compound carbon dioxide mixture comprising contacting the unsaturated fluorinated compound carbon dioxide mixture with a semipermeable membrane to form at least one exit stream having an increased concentration of carbon dioxide and at least one other exit stream having a reduced concentration of carbon dioxide.
(FR) L'invention concerne un procédé visant à extraire le dioxyde de carbone dans un mélange de composés fluorés insaturés et de dioxyde de carbone, ledit mélange étant mis en contact avec une membrane en polyimide semiperméable pour former au moins un flux de sortie à teneur accrue en dioxyde de carbone et au moins un autre flux de sortie à teneur réduite en dioxyde de carbone.
Designated States: CN, JP
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0980347JP2008088190JP2001527553 CN1253540