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1. (WO2001003814) POLY(1-TRIMETHYSILYL-1-PROPYNE) MEMBRANE REGENERATION PROCESS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/003814 International Application No.: PCT/US2000/018645
Publication Date: 18.01.2001 International Filing Date: 07.07.2000
Chapter 2 Demand Filed: 07.02.2001
IPC:
B01D 61/36 (2006.01) ,B01D 65/06 (2006.01) ,B01D 67/00 (2006.01) ,B01D 71/44 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
61
Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
36
Pervaporation; Membrane distillation; Liquid permeation
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
65
Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
02
Membrane cleaning or sterilisation
06
with special washing compositions
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
67
Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
71
Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
06
Organic material
44
Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D71/26-B01D71/42177
Applicants:
THE BOARD OF REGENTS OF THE UNIVERSITY OF NEBRASKA [US/US]; 3835 Holdrege Street Lincoln, NE 68588-0745, US
Inventors:
MEAGHER, Michael, M.; US
FADEEV, Andrei, G.; US
Agent:
GOFF, Christopher, M. ; Senniger, Powers, Leavitt & Roedel 16th Floor One Metropolitan Square St. Louis, MO 63102, US
Priority Data:
60/143,19209.07.1999US
Title (EN) POLY(1-TRIMETHYSILYL-1-PROPYNE) MEMBRANE REGENERATION PROCESS
(FR) PROCEDE DE REGENERATION DE MEMBRANES DE POLY(1-TRIMETHYSILYL-1-PROPYNE)
Abstract:
(EN) A novel process for the regeneration of PTMSP membranes is disclosed. The regeneration process includes washing a fouled PTMSP membrane with a solution containing at least about 50% butanol in water for a time sufficient to increase the flux and/or selectivity of the membrane. This regeneration process with a butanol containing solution significantly improves both the flux and selectivity of the PTMSP membrane and can regenerate the flux of the PTMSP membrane to the level of a previously unused membrane.
(FR) L'invention concerne un nouveau procédé de régénération de membranes de poly(1-triméthysilyl-1-propyne) (PTMSP). Ce procédé de régénération consiste à laver une membrane encrassée de PTMSP à l'aide d'une solution contenant au moins environ 50 % de butanol dans de l'eau, pendant une durée suffisante pour augmenter le flux et/ou la sélectivité de ladite membrane. Ledit procédé, qui utilise une solution contenant du butanol, améliore de manière significative le flux et la sélectivité de la membrane de PTMSP, et peut régénérer le flux de cette membrane au niveau d'une membrane qui n'a pas été utilisée.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)