Patent SG-11201900013P-A (SG)
Title: A process for preparing propylene oxide
Inventor: TELES JOAQUIM HENRIQUE
IPC: C07D303/04
Filed: 2017-07-19
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property 111111101111 0111010101111101111101 0 01111111111111111111111111111111111111111111111 Organization International Bureau (10) International Publication Number (43) International Publication Date ......0\" WO 2018/015430 Al 25 January 2018 (25.01.2018) WI P0 I P C T (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every C07D 301/12 (2006.01) B01J 29/89 (2006.01) kind of national protection available): AE, AG, AL, AM, BOLD 3/00 (2006.01) C07D 303/04 (2006.01) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, (21) International Application Number: CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, PCT/EP2017/068223 DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, (22) International Filing Date: KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, 19 July 2017 (19.07.2017) MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, (25) Filing Language: English SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, (26) Publication Language: English TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (30) Priority Data: (84) Designated States (unless otherwise indicated, for every 16180293.9 20 July 2016 (20.07.2016) EP kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, (71) Applicants: BASF SE [DE/DE]; Carl-Bosch-Str. 38, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, 67056 Ludwigshafen am Rhein (DE). DOW GLOBAL TECHNOLOGIES LLC [US/US]; 2040 Dow Center, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FL FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, Midland, Michigan 48674 (US). MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, _ (72) Inventors: TELES, Joaquim Henrique; Philipp-Hirsch- TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, Str. 4, 67165 Waldsee (DE). KRAMP, Marvin; Linden- KM, ML, MR, NE, SN, TD, TG). hofstr. 104, 68163 Mannheim (DE). MUELLER, Chris- - tian; Neckarpromenade 25/188, 68167 Mannheim (DE). Published: = WOERZ, Nicolai Tonio; Viktoriaplatz 1, 64293 Darm- — with international search report (Art. 21(3)) stadt (DE). METZEN, Bernd; Greener Ring 6, 67593 = _ Westhofen (DE). KELLER, Tobias; Pfaffenbergstrasse 3, 67663 Kaiserslautern (DE). RIEDEL, Dominic; Richard- = Weber-Strasse 20, 68623 Lampertheim (DE). SCHEE- LING, Heiner; Am Bueschel 9a, 67273 Bobenheim am Berg (DE). WEBER, Markus; Ruppertsberger Str. 7, —= = 67117 Limburgerhof (DE). URBANCZYK, Daniel; Darm- - staedter Str. 86, 64347 Griesheim (DE). PARVULESCU, Andrei-Nicolae; HauptstraBe 74, 67152 Ruppertsberg = (DE). WEGERLE, Ulrike; St.-Bonifatius-Str. 11, 67550 Worms (DE). MUELLER, Ulrich; Am Stecken 14a, 67435 = = Neustadt (DE). WEIDENBACH, Meinolf; Kehdingertor- swall 3, 21682 Stade (DE). WITZL, Werner; Konigsmark- = strasse 11, 21682 Stade (DE). Agent: HERZOG FIESSER & PARTNER PATEN- (74) TANWALTE PARTG MBB; ALTMANN, Andreas, Isar- = torplatz 1, 80331 Muenchen (DE). = = Title: A PROCESS FOR PREPARING PROPYLENE OXIDE (54) _ (57) : The present invention is related to a process for preparing propylene oxide, comprising (i) providing a stream comprising It propene, hydrogen peroxide or a source of hydrogen peroxide, water, and an organic solvent; (ii) passing the liquid feed stream provided 45 c in (i) into an epoxidation zone comprising an epoxidation catalyst comprising a titanium zeolite, and subjecting the liquid feed stream C::::) to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising propene, propylene oxide, water, fn and the organic solvent; (iii) removing an effluent stream from the epoxidation zone, the effluent stream comprising propylene oxide, 71' in water, organic solvent, and propene; (iv) separating propene from the effluent stream by distillation, comprising (iv.1) subjecting the Il effluent stream to distillation conditions in a distillation unit, obtaining a gaseous top stream SO enriched in propene compared to the © effluent stream subjected to distillation conditions, and a liquid bottoms stream SO1 enriched in propylene oxide, water and organic .- 0 -- C 1 solvent compared to the effluent stream subjected to distillation conditions; (iv.2) returning a condensed portion of the stream SO to 1-1 c:::: , an ei upper part of the distillation unit. C