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Machine translation
1. (WO2000061493) PROCESS FOR THE REGENERATION OF USED SILICA GEL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2000/061493    International Application No.:    PCT/CA2000/000367
Publication Date: 19.10.2000 International Filing Date: 06.04.2000
Chapter 2 Demand Filed:    12.09.2000    
IPC:
B01D 15/20 (2006.01), B01J 21/20 (2006.01), B01J 38/02 (2006.01), B01J 38/50 (2006.01), B01J 38/60 (2006.01), B01J 38/70 (2006.01)
Applicants: SILICYCLE, INC. [CA/CA]; 1200 Rue St-Jean-Baptiste, Suite 114, Quebec, Québec G2E 5E8 (CA) (For All Designated States Except US).
FORTIER, Luc [CA/CA]; (CA) (For US Only).
CÔTÉ, Simon [CA/CA]; (CA) (For US Only).
ST-LAURENT, Hugo [CA/CA]; (CA) (For US Only).
BERNIER, Simon [CA/CA]; (CA) (For US Only).
COUTURE, André [CA/CA]; (CA) (For US Only)
Inventors: FORTIER, Luc; (CA).
CÔTÉ, Simon; (CA).
ST-LAURENT, Hugo; (CA).
BERNIER, Simon; (CA).
COUTURE, André; (CA)
Agent: NADEAU, François; Swabey Ogilvy Renault, Suite 1600, 1981 McGill College Avenue, Montreal, Québec H3A 2Y3 (CA)
Priority Data:
09/287,374 07.04.1999 US
Title (EN) PROCESS FOR THE REGENERATION OF USED SILICA GEL
(FR) PROCEDE DE RECYCLAGE DE GEL DE SILICE USAGE
Abstract: front page image
(EN)The present invention is concerned a process for the regeneration of the spent silica gel used in chromatography and for any other kind of silica. The process comprises 5 main steps, namely: washing with an extractant of organic compounds and removing volatile organic materials remaining thereafter; oxidation to oxidize organic compounds remaining and, preferably, bleach the material; washing with an acid to remove soluble inorganic matter; heating to dry the material and combust any remaining organic compounds present; and recovering the regenerated material. Various optional steps can be added to the process.
(FR)L'invention concerne un procédé de recyclage de gel de silice usagé utilisé en chromatographie, applicable à tout autre type de silice, qui comprend les cinq étapes principales suivantes: lavage des composés organiques avec un agent d'extraction et élimination des matériaux organiques volatils subsistants; oxydation visant à oxyder les composés organiques restants et, de préférence, blanchiment du matériau; lavage avec un acide pour éliminer les matières inorganiques solubles; chauffage pour sécher le matériau et brûler tout composé organique restant; et enfin récupération du matériau recyclé. On peut ajouter différentes étapes facultatives au procédé.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, 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, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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)