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Machine translation
1. (WO2004094346) PURIFICATION OF SOLVENTS USED FOR THE PURIFICATION OF ALKYLENE OXIDE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2004/094346    International Application No.:    PCT/US2004/012608
Publication Date: 04.11.2004 International Filing Date: 22.04.2004
IPC:
B01D 3/40 (2006.01), B01J 39/04 (2006.01), C07C 29/76 (2006.01), C07C 41/36 (2006.01)
Applicants: HUNTSMAN INTERNATIONAL LLC [US/US]; 3040 Post Oak Blvd., Houston, TX 77056 (US) (For All Designated States Except US).
SANDERSON, John, R. [US/US]; (US) (For US Only).
MUELLER, Mark [US/US]; (US) (For US Only).
FARONE, James, P. [US/US]; (US) (For US Only)
Inventors: SANDERSON, John, R.; (US).
MUELLER, Mark; (US).
FARONE, James, P.; (US)
Agent: WHEWELL, Christopher, J.; Hunstman LLC, Legal Department, P.O. Box 15730, Austin, TX 78761 (US)
Priority Data:
10/421,367 23.04.2003 US
Title (EN) PURIFICATION OF SOLVENTS USED FOR THE PURIFICATION OF ALKYLENE OXIDE
(FR) PURIFICATION DE SOLVANTS UTILISES POUR LA PURIFICATION D'OXYDE D'ALKYLENE
Abstract: front page image
(EN)This invention concerns a process for removing carbonyl-containing impurities from impure extractive distillation solvent such as a glycol, comprising: contacting the impure extractive distillation solvent with an acidic ion exchange resin. The purified extractive distillation solvent can be recycled for use as a solvent in an extractive distillation process that removes impurities from alkylene oxide. The extractive distillation solvent can be ethylene glycol monomethyl ether (EGME) used to purify propylene oxide.
(FR)Cette invention concerne un procédé d'élimination des impuretés contenant du carbonyle d'un solvant de distillation d'extraction impur tel qu'un glycol, consistant : à mettre le solvant de distillation d'extraction impur en contact avec une résine échangeuse d'ions acides. Le solvant de distillation d'extraction purifié peut être recyclé afin d'être utilisé en tant que solvant dans un processus de distillation d'extraction éliminant les impuretés d'oxyde d'alkylène. Le solvant de distillation d'extraction peut être un éther d'éthylèneglycol et de monométhyle (EGME) utilisé pour purifier de l'oxyde de propylène.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, 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, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PL, PT, RO, SE, SI, SK, 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)