SYNTHESIS METHOD FOR ACICULAR TITANIUM OXIDE POWDER
| Foreign code | F120006790 |
|---|---|
| File No. | S2011-0065 |
| Posted date | Jun 27, 2012 |
| Country | WIPO |
| International application number | 2011JP074025 |
| International publication number | WO 2012/077414 |
| Date of international filing | Oct 19, 2011 |
| Date of international publication | Jun 14, 2012 |
| Priority data |
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| Title | SYNTHESIS METHOD FOR ACICULAR TITANIUM OXIDE POWDER |
| Abstract | Provided is a synthesis method for acicular titanium oxide powder that has excellent temperature stability in the crystal phase thereof. It is possible to synthesize acicular titanium oxide powder that has excellent temperature stability in the crystal phase thereof by: synthesizing (step 1) an acicular alkali-Ti-oxide as an intermediate, by using a strong alkali aqueous solution and performing hydrothermal synthesis in a range greater than or equal to 375 deg.C and 22.5MPa, which is in the supercritical state of water; and heat-treating (step 2) the acicular alkali-Ti-oxide, the intermediate obtained in the previous step, by exchanging the alkali ions with hydrogen ions in a mildly acidic aqueous solution, and then heat-treating at a temperature of 300-500 deg.C in the atmosphere. It is preferable for the temperature and pressure ranges during the hydrothermal synthesis to be 375-430 deg.C and 22.5-40MPa, and for the concentration in the strong alkali aqueous solution to be 8-13 mol/L. |
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| IPC(International Patent Classification) | |
| Specified countries | AE(UTILITY MODEL),AG,AL(UTILITY MODEL),AM(PROVISIONAL PATENT)(UTILITY MODEL),AO(UTILITY MODEL),AT(UTILITY MODEL),AU,AZ(UTILITY MODEL),BA(CONSENSUAL PATENT),BB,BG(UTILITY MODEL),BH(UTILITY MODEL),BR(UTILITY MODEL),BW(UTILITY MODEL CERTIFICATE),BY(UTILITY MODEL),BZ(UTILITY MODEL),CA,CH,CL(UTILITY MODEL),CN(UTILITY MODEL),CO(UTILITY MODEL),CR(UTILITY MODEL),CU(INVENTOR'S CERTIFICATE),CZ(UTILITY MODEL),DE(UTILITY MODEL),DK(UTILITY MODEL),DM,DO(UTILITY MODEL),DZ,EC(UTILITY MODEL),EE(UTILITY MODEL),EG(UTILITY MODEL),ES(UTILITY MODEL),FI(UTILITY MODEL),GB,GD,GE(UTILITY MODEL),GH(UTILITY CERTIFICATE),GM,GT(UTILITY MODEL),HN(UTILITY MODEL),HR(CONSENSUAL PATENT),HU(UTILITY MODEL),ID,IL,IN,IS,JP(UTILITY MODEL),KE(UTILITY MODEL),KG(UTILITY MODEL),KM,KN,KP(INVENTOR'S CERTIFICATE)(UTILITY MODEL),KR(UTILITY MODEL),KZ(PROVISIONAL PATENT)(UTILITY MODEL),LA,LC,LK,LR,LS(UTILITY MODEL),LT,LU,LY,MA,MD(UTILITY MODEL),ME,MG,MK,MN,MW,MX(UTILITY MODEL),MY(UTILITY INNOVATION),MZ(UTILITY MODEL),NA,NG,NI(UTILITY MODEL),NO,NZ,OM(UTILITY MODEL),PE(UTILITY MODEL),PG,PH(UTILITY MODEL),PL(UTILITY MODEL),PT(UTILITY MODEL),QA,RO,RS(PETTY PATENT),RU(UTILITY MODEL),RW(UTILITY MODEL),SC,SD,SE,SG,SK(UTILITY MODEL),SL(UTILITY MODEL),SM,ST,SV(UTILITY MODEL),SY,TH(PETTY PATENT),TJ(UTILITY MODEL),TM(PROVISIONAL PATENT),TN,TR(UTILITY MODEL),TT(UTILITY CERTIFICATE),TZ,UA(UTILITY MODEL),UG(UTILITY CERTIFICATE),US,UZ(UTILITY MODEL),VC(UTILITY CERTIFICATE),VN(PATENT FOR UTILITY SOLUTION),ZA,ZM,ZW,EP(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),OA(BF(UTILITY MODEL),BJ(UTILITY MODEL),CF(UTILITY MODEL),CG(UTILITY MODEL),CI(UTILITY MODEL),CM(UTILITY MODEL),GA(UTILITY MODEL),GN(UTILITY MODEL),GQ(UTILITY MODEL),GW(UTILITY MODEL),ML(UTILITY MODEL),MR(UTILITY MODEL),NE(UTILITY MODEL),SN(UTILITY MODEL),TD(UTILITY MODEL),TG(UTILITY MODEL)),AP(BW(UTILITY MODEL),GH(UTILITY MODEL),GM(UTILITY MODEL),KE(UTILITY MODEL),LR(UTILITY MODEL),LS(UTILITY MODEL),MW(UTILITY MODEL),MZ(UTILITY MODEL),NA(UTILITY MODEL),RW(UTILITY MODEL),SD(UTILITY MODEL),SL(UTILITY MODEL),SZ(UTILITY MODEL),TZ(UTILITY MODEL),UG(UTILITY MODEL),ZM(UTILITY MODEL),ZW(UTILITY MODEL)),EA(AM,AZ,BY,KG,KZ,MD,RU,TJ,TM) |
Contact Information for " SYNTHESIS METHOD FOR ACICULAR TITANIUM OXIDE POWDER "
- Doshisha University INTELLECTUAL PROPERTY CENTER
- URL: http://www.doshisha.ac.jp/english/
-
E-mail:
- Address: 1-3 Tatara Miyakodani, Kyotanabe City, Japan , 610-0394
- Fax: 81-774-65-6773
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