Patent SG-11201407354S-A (SG)
Title: Liquid-liquid separator interface detection system and polymerization process utilizing the same
Inventor: HYPOLITE CURVEL
IPC: G01N29/024
Filed: 2013-03-14
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) CORRECTED VERSION (19) World Intellectual Property Organization International Bureau (43) International Publication Date 14 November 2013 (14.11.2013) WIPOIPCT (10) International Publication Number WO 2013/169357 A8 (51) International Patent Classification: GO IN 29/024 (2006.01) C08F 2/00 (2006.01) G01F 23/296 (2006.01) C08F 2/06 (2006.01) C08F 2/01 (2006.01) C08F 2/14 (2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/US2013/031163 14 March 2013 (14.03.2013) English English (30) Priority Data: 13/467,845 9 May 2012 (09.05.2012) US (71) Applicant: DOW GLOBAL TECHNOLOGIES LLC [US/US]; 2040 Dow Center, Midland, MI 48674 (US). (72) Inventors; and (71) Applicants HYPOLITE, : Curvel [US/US]; 9410 Beryl Lake Drive, Rosharon, TX 77583 (US). WANG, Alec, Y. [US/US]; 103 Indian Paintbrush, Lake Jackson, TX 77566 (US). (74) Agent: FRIEDRICH, Valerie; JL Salazar Law Firm, 1934 W. Gray Street, Suite 401, Houston, TX 77019 (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, 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, KM, 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, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) — with amended claims (Art. 19(1)) [Continued on next page] (54) Title: LIQUID-LIQUID SEPARATOR INTERFACE DETECTION SYSTEM AND POLYMERIZATION PROCESS UTILIZ­ ING THE SAME 00 l> m o\ i-H cn i-H o CJ O £ FIG. 1 (57) Abstract: A system for detecting an interface between polymer-rich a phase and solvent-rich a phase comprising a liquid-liquid separator configured receive to a polymer solution as an inlet stream comprising solvent, polymer and unreacted monomer produced in solvent-based a polymerization reactor through an inlet feed, wherein a tank is configured to provide residence time a of at least 20 minutes and to permit the stream to separate into the polymer rich phase and the solvent rich phase; a first sonic transponder for sending a first sonic signal from either a top or bottom of the liquid-liquid separator and for receiving a first reflected portion of the sonic signal, the reflected portion of the sonic signal created by the passage of the sonic signal through liquid-liquid a interface between the solvent rich phase and the polymer rich phase, wherein the first sonic transponder positioned such that is it transmits the signal which travels perpendicularly to the liquid-liquid interface is provided. WO 2013/169357 A81 lllll llllllll II llllll III lllll lllll lllll III III III lllll lllll lllll lllll llll llll lllllll llll llll (48) Date of publication of this corrected version: (15) Information about Correction: 9 January 2014 see Notice of January 2014 9