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1. (WO2017111150) TITANIUM OXIDE AND METHOD OF PRODUCING THE SAME
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/111150 International Application No.: PCT/JP2016/088602
Publication Date: 29.06.2017 International Filing Date: 16.12.2016
IPC:
C01G 23/053 (2006.01)
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
G
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
23
Compounds of titanium
04
Oxides; Hydroxides
047
Titanium dioxide
053
Producing by wet processes, e.g. hydrolysing titanium salts
Applicants:
SHOWA DENKO K. K. [JP/JP]; 13-9, Shibadaimon 1-chome, Minato-ku, Tokyo 1058518, JP
Inventors:
MIZUE, Kei; JP
KAYAMA, Susumu; JP
KOGOI, Hisao; JP
Agent:
SHIGA, Masatake; 1-9-2, Marunouchi, Chiyoda-ku Tokyo 1006620, JP
Priority Data:
2015-24905421.12.2015JP
Title (EN) TITANIUM OXIDE AND METHOD OF PRODUCING THE SAME
(FR) OXYDE DE TITANE ET PROCÉDÉ POUR SA PRODUCTION
Abstract:
(EN) Provided is a method of producing a titanium oxide in which titanium tetrachloride is hydrolyzed using a liquid-phase method. This method includes a step of adding an aqueous titanium tetrachloride solution to warm water having a higher temperature than the aqueous titanium tetrachloride solution, in which in the step, the temperature of the warm water is 30°C to 95°C and the aqueous titanium tetrachloride solution is added to the warm water such that an increase rate of titanium atomic concentration in the warm water is 0.25 mmol/L/min to 5.0 mmol/L/min, and a titanium atomic concentration in the warm water after the step is 280 mmol/L or lower.
(FR) L'invention concerne un procédé de production d'un oxyde de titane dans lequel du tétrachlorure de titane est hydrolysé à l'aide d'un procédé en phase liquide. Ce procédé comprend une étape consistant à ajouter une solution aqueuse de tétrachlorure de titane à de l'eau chaude présentant une température supérieure à celle de la solution aqueuse de tétrachlorure de titane, dans laquelle étape, la température de l'eau chaude est de 30°C à 95°C et la solution aqueuse de tétrachlorure de titane est ajoutée à l'eau chaude de telle sorte qu'une vitesse d'augmentation de la concentration atomique en titane dans l'eau chaude est de 0,25 mmole/l/min à 5,0 mmoles/l/min et une concentration atomique en titane dans l'eau tiède après l'étape est de 280 mmoles/l ou moins.
Designated States: 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, 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
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
KR1020180077220CN108367938US20180237311EP3393976