Patent SG-11201408260R-A (SG)
Title: Process for the production of methylbutinol
Inventor: OTTIGER STEFAN
IPC: B01D61/36
Filed: 2013-07-11
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 16 January 2014 (16.01.2014) WIPOIPCT (10) International Publication Number WO 2014/009452 A1 (51) International Patent Classification: C07C 29/42 (2006.01) C07C 33/042 (2006.01) C07C 29/80 (2006.01) K011) 61/36 (2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/EP2013/064651 11 July 2013 (11.07.2013) English (30) Priority Data: 12175996.3 11 July 2012 (11.07.2012) English EP (71) Applicant: LONZA LTD [CH/CH]; Lonzastrasse, CH- 3930 Visp (CH). (72) Inventors: OTTIGER, Stefan; Viktoriastrasse 15, CH- 3900 Brig (CH). SCHOLL, Thomas; Rheinstrasse 41, CH-8500 Frauenfeld (CH). STOFFEL, Stefan; Tolas- trasse 33, CH-3944 Unterbach (CH). KALBERMATTER, Klaus; Napoleonstrasse 69, CH-3902 Brig-Glis (CH). KLEIN, Andreas; Englischgruss-Strasse 30, CH-3902 Brig-Glis (CH). NEDUNGADI, Kishore; Uberlandstrasse — 32, CH-3902 Glis (CH). (81) Designated States (unless otherwise indicated, for every kind of national protection available)'. AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, 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, 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, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, 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. (84) Designated States (unless otherwise indicated, for every kind of regional protection available)'. ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, 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, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Declarations under Rule 4.17: — as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(H)) of inventorship (Rule 4.17(iv)) Published: — with international search report (Art. 21(3)) CJ •t o\ © o o CJ o & (54) Title: PROCESS FOR THE PRODUCTION OF METHYLBUTINOL (57) Abstract: Subject of the invention is a process for the production of methylbutinol, wherein the process comprises at least one pervaporation step. In a preferred embodiment, the process comprises the steps of • (a) providing a feed composition comprising methylbutinol and water, • (b) subjecting the feed composition to distillation in distillation device, a • (c) removing sidestream a from the distillation device, the sidestream having a higher water content than the feed composition, and • (d) subjecting said sidestream to pervaporation, thereby reducing the water content. The invention also relates to the use of pervaporation and/or a per­ vaporation membrane for removing water from methylbutinol, or for purifying methylbutinol.