Patent SG-11201906611U-A (SG)
Title: Waste stream upgrading in a propylene oxide/styrene coproduction process
Inventor: NAGY SANDOR
IPC: C07C7/10
Filed: 2018-02-01
Abstract: GASTREATMENT AND RECYCLE UNIT CO GAS SOURCES c- I 35 / SEPARATION / 40 , TREATED ORGANIC DEVICES STREAM WITH LOW ASH CONTENT -N -14 FIG. 1 25 MIXING DEVICES 30 1 1 0 ORGANIC 5- SOURCES WITH , I HIGH ASH CONTENT 50-- N _ WASTE WATER FOR TREATMENT AND RECYCLE UNIT CARBONATED WATER SOURCES 15 -/- 45- N _ 20- 1-1 1-1 O N 1-1 00 O N C (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 09 August 2018 (09.08.2018) WIPO I PCT o mono VIII °nolo VIII Ho Ho mo Ho 110 111110 oimIE (10) International Publication Number WO 2018/144740 Al (51) International Patent Classification: C07C 7/10 (2006.01) C07D 301/32 (2006.01) C07C 15/46 (2006.01) (21) International Application Number: PCT/US2018/016465 (22) International Filing Date: 01 February 2018 (01.02.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/454,542 03 February 2017 (03.02.2017) US (71) Applicant: LYONDELL CHEMICAL TECHNOLO- GY, L.P. [US/US]; Lyondellbasell Tower, 1221 Mckinney Street, Suite 700, Houston, TX 77010 (US). (72) Inventors: NAGY, Sandor; C/o Lyondellbasell IP Le- gal Dept., 1221 Mckinney Street, Suite 700, Houston, TX 77010 (US). NGUYEN, Ha, H.; C/o Lyondellbasell IP Le- gal Dept., 1221 Mckinney Street, Suite 700, Houston, TX 77010 (US). LINDSEY, Dan, D.; C/o Lyondellbasell IP Legal Dept., 1221 Mckinney Street, Suite 700, Houston, TX 77010 (US). KIMMICH, Barbara; C/o Lyondellbasell IP Legal Dept., 1221 Mckinney Street, Suite 700, Houston, TX 77010 (US). BRUSCHI, Nicholas; C/o Lyondellbasell IP Legal Dept., 1221 Mckinney Street, Suite 700, Houston, TX 77010 (US). MONTANO-LAWRENCE, James, D.; C/o Lyondellbasell IP Legal Dept., 1221 Mckinney Street, Suite 700, Houston, TX 77010 (US). TURNER, Justin, E.; C/o Lyondellbasell IP Legal Dept., 1221 Mckinney Street, Suite 700, Houston, TX 77010 (US). JACKSON, Debra, L.; C/o Lyondellbasell IP Legal Dept., 1221 Mckinney Street, Suite 700, Houston, TX 77010 (US). DEARTH, Anthony, S.; C/o Lyondellbasell IP Legal Dept., 1221 Mckinney Street, Suite 700, Houston, TX 77010 (US). (54) Title: WASTE STREAM UPGRADING IN A PROPYLENE OXIDE/STYRENE COPRODUCTION PROCESS (57) : A method including contacting an organic stream with water and carbon dioxide, whereby sodium is extracted from the organic stream, and separating an aqueous sodium salt-containing phase from an organic phase comprising a reduced sodium content. The organic stream can be a heavy residue formed in the co-production of propylene oxide and styrene. Contacting can include combining the carbon dioxide with the water to form a CCh-saturated water stream and contacting the CCh-saturated water stream with the organic stream, and/or combining the organic stream and the water to form a mixture and injecting the carbon dioxide as a gas there into. The method can further include repeating the contacting and the separating one or more times on the organic phase, subjecting the organic phase to ion exchange, or both, to obtain an organic phase having a further reduced sodium, content, A system for carrying out the method is also provided. [Continued on next page] WO 2018/144740 Al MIDIOMMIONOIRM013010HOMEHEIMIE (74) Agent: STONEBROOK, Michael, R. et al.; Lyondell- basell Industries, 1221 Mckinney Street, Houston, TX 77010 (US). (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, JO, 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: — with international search report (Art. 21(3))