Patent SG-11201806430T-A (SG)
Title: A process for the preparation of propylene oxide
Inventor: RIEDEL DOMINIC
IPC: C07D301/36
Filed: 2017-02-16
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2017/140774 Al 24 August 2017 (24.08.2017) WIPO I PCT 1111111111111101110111111111110101111101110101111111111111011101111111111111110111111 International Patent Classification: C07D 301/12 (2006.01) C07D 301/36 (2006.01) International Application Number: PCT/EP2017/053492 International Filing Date: (25) Filing Language: (26) Publication Language: (30) Priority Data: 16156112.1 17 February 2016 (17.02.2016) EP (71) Applicant: BASF SE [DE/DE]; Ludwigshafen, 67056 Ludwigshafen (DE). (72) Inventors: RIEDEL, Dominic; Richard-Weber-StraBe 20, 68623 Lampertheim (DE). TELES, Joaquim H.; Philipp- Hirsch-Str. 4, 67165 Waldsee (DE). SCHELLING, Hein- er; Am Bilschel 9a, 67273 Bobenheim am Berg (DE). WEGERLE, Ulrike; St.-Bonifatius-Str. 11, 67550 Worms (DE). MULLER, Ulrich; Am Stecken 14a, 67435 Neustadt (DE). PARVULESCU, Andrei-Nicolae; HauptstraBe 74, 67152 Ruppertsberg (DE). MANN- WEILER, Jochen; MittelstraBe 6, 67547 Worms (DE). HENN, Timo; Wassergasse 26, 67294 Staten (DE). LU- DERITZ, Thomas; RingstraBe 30b, 67141 Neuhofen berger Str. 7, 67117 Limburgerhof (DE). URBANCZYK, Daniel; Darmstadter Str. 86, 64347 Griesheim (DE). (74) Agent: HERZOG FIESSER & PARTNER PAT- ENTANWALTE PARTG MBB; ALTMANN, Andreas, DudenstraBe 46, 68167 Mannheim (DE). (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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, 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, SA, 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, ST, 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). Published: 16 February 2017 (16.02.2017) English English DE ORZ laiT ik i 1 1 64293 ( ). W , N co on o; V tor aatz p , Darmstadt (DE). MULLER, Christian; Neckarpromenade 25, 68167 Mannheim (DE). WEBER, Markus; Rupperts- - with international search report (Art. 2 1 (3)) W O 20 1714077 / 4 Al (54) Title: A PROCESS FOR THE PREPARATION OF PROPYLENE OXIDE (57) : A continuous process for the preparation of propylene oxide, comprising a start-up stage and normal run stage, wherein the normal run stage comprises (i) continuously providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, a formate salt, water and optionally propane, wherein in the liquid feed stream, the molar amount of the formate salt Tel - ative to the molar amount of hydrogen peroxide at a given point of time during the normal run stage is a N (Fo/H202); (ii) continuously passing the liquid feed stream provided in (i) into an epoxidation zone comprising a catalyst comprising a titanium zeolite having framework type MWW, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising propylene oxide, acetonitrile, water, the formate salt, optionally propene, and optionally propane; (iii) continuously removing an effluent stream from the epoxidation zone, the effluent stream comprising propylene oxide, acetonitrile, water, at least a portion of the formate salt, optionally propene, and optionally propane; wherein the normal run stage is character - ized in an average rate of change of a N (Fo/H 2 0 2 ) of less than 0 h-1.