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1. (WO2010123842) SIMPLIFIED METHOD FOR PRODUCING ALKYLENE OXIDES WITH A HIGH EFFICIENCY CATALYST AS IT AGES
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2010/123842 International Application No.: PCT/US2010/031668
Publication Date: 28.10.2010 International Filing Date: 20.04.2010
Chapter 2 Demand Filed: 11.02.2011
IPC:
C07D 301/10 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
301
Preparation of oxiranes
02
Synthesis of the oxirane ring
03
by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
04
with air or molecular oxygen
08
in the gaseous phase
10
with catalysts containing silver or gold
Applicants:
ZHANG, Liping [US/US]; US (UsOnly)
SOO, Hwaili [US/US]; US (UsOnly)
HENSTOCK, William [US/US]; US (UsOnly)
DOW TECHNOLOGY INVESTMENTS LLC [US/US]; 2020 Dow Center Midland, Michigan 48674, US (AllExceptUS)
Inventors:
ZHANG, Liping; US
SOO, Hwaili; US
HENSTOCK, William; US
Agent:
HANSEN, Steven; Hansen IP Law PLLC PO Box 300069 Waterford, Michigan 48330, US
Priority Data:
61/171,24821.04.2009US
Title (EN) SIMPLIFIED METHOD FOR PRODUCING ALKYLENE OXIDES WITH A HIGH EFFICIENCY CATALYST AS IT AGES
(FR) PROCÉDÉ SIMPLIFIÉ DE PRODUCTION D'OXYDES D'ALKYLÈNE AVEC UN CATALYSEUR HAUTE EFFICACITÉ AU FUR ET À MESURE DE SON VIEILLISSEMENT
Abstract:
(EN) A simplified method of operating an alkylene oxide production process that utilizes a high efficiency silver catalyst is shown and described. The method accounts for declining catalyst activity that occurs as the catalyst ages by making alternating changes to the reaction temperature and an overall chloriding effectiveness parameter.
(FR) L'invention porte sur un procédé simplifié d'exploitation d'un procédé de production d'oxyde d'alkylène qui utilise un catalyseur à l'argent à haute efficacité. Le procédé prend en compte la diminution de l'activité du catalyseur, qui se produit au fur et à mesure du vieillissement de ce dernier, en effectuant des changements alternés de la température de la réaction et d'un paramètre concernant l'efficacité globale de la chloration.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)