Patent SG-11201408381Q-A (SG)
Title: Composites of mixed metal oxides for oxygen storage
Inventor: WANG XIAOMING
IPC: C01F17/00
Filed: 2013-06-13
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 19 December 2013 (19.12.2013) WIPOIPCT (10) International Publication Number WO 2013/188664 A1 (51) International Patent Classification: COIF 17/00 (2006.01) B01J23/44 (2006.01) C01F 7/02 (2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/US2013/045651 13 June 2013 (13.06.2013) English (30) Priority Data: 61/660,315 15 June 2012 (15.06.2012) English US (71) Applicant: BASF CORPORATION [US/US]; 100 Park Avenue, Florham Park, NJ 07932 (US). (72) Inventors: WANG, Xiaoming; IB Forest Drive, Spring­ field, NJ 07081 (US). WASSERMANN, Knut; 58 Sayre Drive, Princeton, NJ 08540 (US). (74) Agents: BROWN, Melanie et al.; Basf Corporation, 100 Park Avenue, Florham Park, NJ 07932 (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, 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, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) — before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h)) (54) Title: COMPOSITES OF MIXED METAL OXIDES FOR OXYGEN STORAGE 70 n •t 00 00 i-H en i-H o CJ o & 60 50 o o • o £ 40 o > IS 30 T3 V (£. 20 10 O • Compositions: 25% Ce0 , 2 5% Y 0 , 2 3 5% La 0 , 2 3 65% Al 0 2 3 + Zr0 2 60 0 10 20 30 40 50 Alumina Content, % FIG. 6 (57) Abstract: Provided are composites of mixed metal oxides comprising: ceria-zirconia-alumina composite, wherein a the alumina is present in an amount in the range of 1 to less than 30% by weight of the composite and the mixed metal oxide composite has a ceria reducibility of at least 50% after 12 hours of hydro thermal aging 1050°C. In preparation at thereof, a ceria- zirconia solid solu­ tion can optionally further comprise at least one rare earth oxide other than ceria and the alumina may be formed by using a colloidal alumina precursor. Methods of making and using these composites are also provided.