Patent SG-11201810073X-A (SG)
Title: Process for producing acetic acid
Inventor: SHIMIZU MASAHIKO
IPC: C07C53/08
Filed: 2017-01-16
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property MD HIM 01E101011M 3E1 0 0111101111111111 010 111011111E1111 MI Organization International Bureau (10) International Publication Number (43) International Publication Date .....0 WO 2018/008172 Al 11 January 2018 (11.01.2018) W I PO I PCT (51) International Patent Classification: (74) Agent: KUWATA Mitsuo et al.; KUWATA & CO., C07C 51/44 (2006.01) C07C 53/08 (2006.01) 6th Floor, Minato Umeda Building, 3-17, Nishitemma 6- (21) International Application Number: chome, Kita-ku, Osaka-shi, Osaka, 5300047 (JP). PCT/JP2017/001213 (81) Designated States (unless otherwise indicated, for every (22) International Filing Date: kind of national protection available): AE, AG, AL, AM, 16 January 2017 (16.01.2017) 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, (25) Filing Language: English DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, (26) Publication Language: English 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, (30) Priority Data: MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, 62/359,552 07 July 2016 (07.07.2016) US 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, (71) Applicant: DAICEL CORPORATION [JP/JP]; 3-1, Ofu- TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. ka-cho, Kita-ku, Osaka-shi, Osaka, 5300011 (JP). (84) Designated States (unless otherwise indicated, for every (72) Inventors: SHIMIZU Masahiko; c/o Daicel Corporation, kind of regional protection available): ARIPO (BW, GH, 1239, Shinzaike, Aboshi-ku, Himeji-shi, Hyogo, 6711283 GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, (JP). MIZUTANI Yoshihisa; c/o Daicel Corporation, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, 1239, Shinzaike, Aboshi-ku, Himeji-shi, Hyogo, 6711283 TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, — (JP). MIURA Hiroyuki; c/o Daicel Corporation, 1239, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, Shinzaike, Aboshi-ku, Himeji-shi, Hyogo, 6711283 (JP). — MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, = = = (54) Title: PROCESS FOR PRODUCING ACETIC ACID _ 53 C3 \ Water (5A) ,, e\" 4 \"C _ _fia ( 62 72 C ' g 83 CI = (- 26 (7A) (8A) 5 .. P--N bc C6 C2 4 ‘ - r i 24...\ = 0 __,C1 < ; k = — HT ,-23 3 -- f - 32,..... ( 3 A) 42b \ 43a ' 1 (5B) 61 , r 63 - 73 84 85 = — \" Ti 22 ../ 43b,, 67- 68-, 7 4 ---- 25 = (2A) 42a 7 = , c Y = 1- \" — 's 11 2)(Th ( 3B )>. \ 44 \ ,---70 6 5 68 (78) (8B) = > i s.... j CO -- e •-ffi• = `.... x . 7\ \,_.) (2B) -)--1 31-, C38 (3C) ---41 (5C) — Miscible solvent 71- -- -- ,---- 52 -81 21 Methanol P S I 90 ei IN 1-1 co (57) : A process for separating or removing permanganate reducing compounds (PRC's) from a first mixture containing at © least one PRC, methyl iodide, and water comprises the steps of: feeding the first mixture to a feed port of a distillation column, and 0 ---- distilling and separating the first mixture into an upper stream and a lower stream, wherein the distillation of the first mixture forms a = second mixture at an upper position than the feed port, and the process further comprises the steps of: withdrawing the second mixture 1-1 © as the upper stream, and withdrawing the lower stream from a lower position than the feed port. ei C [Continued on next page] WO 2018/008172 Al 11111111111111011101111111111101110101111111111111111110101111011111110110111111 TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))