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Machine translation
1. (WO2007096346) PROCESS FOR THE PREPARATION OF AN ALKANEDIOL AND A DIALKYL CARBONATE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/096346    International Application No.:    PCT/EP2007/051590
Publication Date: 30.08.2007 International Filing Date: 20.02.2007
IPC:
C07C 68/06 (2006.01), C07C 69/96 (2006.01)
Applicants: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. [NL/NL]; Carel van Bylandtlaan 30, NL-2596 HR The Hague (NL) (For All Designated States Except US).
VAN DER HEIDE, Evert [NL/NL]; (NL) (For US Only).
NISBET, Timothy Michael [GB/NL]; (NL) (For US Only)
Inventors: VAN DER HEIDE, Evert; (NL).
NISBET, Timothy Michael; (NL)
Agent: SHELL INTERNATIONAL B.V.; Intellectual Property services, PO Box 384, NL-2501 CJ The Hague (NL)
Priority Data:
06110249.7 22.02.2006 EP
Title (EN) PROCESS FOR THE PREPARATION OF AN ALKANEDIOL AND A DIALKYL CARBONATE
(FR) PROCÉDÉ DE PRÉPARATION D'UN ALCANEDIOL ET D'UN CARBONATE DE DIALKYLE
Abstract: front page image
(EN)A process for the preparation of an alkanediol and a dialkyl carbonate is provided, which process comprises: (a) contacting an alkylene carbonate with an alkanol feedstock under transesterification conditions in a reactive distillation column to obtain an upwardly moving stream comprising dialkyl carbonate and the alkanol and a downwardly moving stream comprising the alkanediol; (b) recovering the alkanediol at the bottom of the column; (c) withdrawing a dialkyl carbonate- and alkanol-containing product stream at the upper part of the column, which upper part is below the top of the column; and (d) removing lower-boiling compounds at the top of the column.
(FR)La présente invention concerne un procédé de préparation d'un alcanediol et d'un carbonate de dialkyle, ledit procédé comprenant: (a) la mise en contact d'un carbonate d'alkylène avec une charge d'alcanol dans des conditions de transestérification dans une colonne de distillation réactive en vue d'obtenir un flux ascendant comprenant du carbonate de dialkyle et l'alcanol et un flux descendant comprenant l'alcanediol; (b) la récupération de l'alcanediol au pied de la colonne; (c) le retrait d'un flux de produit contenant du carbonate de dialkyle et de l'alcanol dans la partie supérieure de la colonne, ladite partie supérieure étant sous la tête de la colonne; et (d) le retrait de composés à bas point d'ébullition au niveau de la tête de la colonne.
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, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, 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, IS, IT, LT, LU, LV, 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)