Patent SG-11201408253W-A (SG)
Title: Activated carbon for noble metal adsorption, noble metal adsorption filter, and method for recovering noble metals
Inventor: HANAMOTO TETSUYA
IPC: C01B32/336
Filed: 2013-06-21
Abstract: (i2) mwu ft iz s-5 iv x m £ titz s issaj n d9) mm IHMMi _ (43) 2013 ^ 12 ^ 27 0(27.12.2013) WIPO I PCT (10) WO 2013/191269 A1 (51) C22B 11/00 (2006.01) B01J20/10 ( 2006.01) B01J20/28 (2006.01) C01B 31/10 (2006.01) (21) (22) (25) g&fflgia)] (26) HI®4>§f]CDl =E. DP . r=E. I DP • C01B 31/12 (2006.01) C02F1/28 (2006.01) C22B 3/24 (2006.01) C22B 7/00 (2006.01) PCT/JP2013/067033 2013^6^ 21 0(21.06.2013) (30) fiBfefix — £: 2012-141349 2012 ^ 6 .E 22 0(22.06.2012) JP (71) ttiJiA: ^7U^5*^SSstt(KURARAY CHEMICAL CO., LTD.) [JP/JP]; T7050025 HUjlHi BUrfifl/S4 3 4 2 Okayama(JP). ^ it (TANAKA KIKINZOKU KOGYO K.K.) [JP/JP]; T 1006422 f [W\"t H [* A CD 1*1 2TI 7§3\"^ Tokyo (JP). (72) % BJ # : ft ^ ^ til (HANAMOTO Tetsuya); T 7050025 HUj!HiBiJrfTi!^4 3 4 2 <7 7l/^ 5 Okayama (JP). UU H Pi5.(YA- MADA Takayuki); T 7050025 II Uj PUS BU TfTlljfi 4 342 <7 ^ U-y 5 2J fa Okayama (JP). Ipfjl #(SABAE Yoshichika); T 2540021 Jil»¥iim*IP2- 1 4 E + Ji&JKllltta 35tt $1 M X ±§ fa Kanagawa (JP). (74) ft IIA: ItH % ±, 51- (KUWATA Mitsuo et al.); T5300047 AIKJ#AIKrfT;lt:l*E^;i6Tg 3# PJT Osaka (JP). (81) IS ft nJ f b): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) (asrofci^isy > ±T(Dmm(Dfcm% V&tf nlfb): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW), 3- — V T (AM, AZ, BY, KG, KZ, RU, TJ, TM), 3 — • V / ^ (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). - (&&£ 21 &(3)) 0\ CJ T-H o\ m T-H o CJ O (54) Title: ACTIVATED CARBON FOR NOBLE METAL ADSORPTION, NOBLE METAL ADSORPTION FILTER, AND METHOD FOR RECOVERING NOBLE METALS (54) I-r (57) Abstract: An activated carbon for adsorbing a noble metal from an aqueous solution containing noble a metal, wherein the dif­ ference (absolute value) between the zeta-potential in 10-mmol/L aqueous a solution of sodium tetraborate, and the zeta-potential in a 0.01-mmol/L aqueous solution of sodium tetraborate adjusted is to 18 mV or less, and the pore volume at a pore radius of 1 nm or less is adjusted to 150 to 500 mm'/g. This activated carbon may have a sugar solution decolorization performance of 30% or higher. The aqueous solution containing a noble metal may be plating waste a liquid. The present invention allows noble metal to be ad - sorbed (or recovered) with good efficiency from a noble metal-containing liquid. (57)®$: 3f=&©S1!0il::d3l^-C\ 10mmo l/L< T>m I\" 'J 0. 0 1 mmo I / L (D 07^11^ h U £ 1($££Mit) £1 8mVJilT> 1 n m 1 5 0 ~ 5 0 0 mm 3 /g ICgfUl t5. ttjfcffiifeltfl&jb* 3 0%Jsl±-efcoTt £1^0 flu IB ft ;£;&!£