Method for preparing a photocatalyst containing titanium dioxide
Abstract
The invention involves containing titanium dioxide Photocatalyst, method and its applications for their use. Oxygen from the titanium sulfate in acidic solution in less than the boiling point of the solution, for example under the temperature of 70-100 ° c, in nuclei and do not join under alkaline conditions make sulfur-containing titanium dioxide hydrate sediment precipitates. Isolation, flushed and burning of the sediment. Resultant of photocatalytic titanium dioxide over an area of 100 to 250m2/g, sulphur concentration of 0.3zhi5%. Catalytic activity of acetaldehyde (asetal dehyde) decomposition and anions (SNC-) 2 was confirmed in the formation of free radicals.
Term
No projected expiry on record.
- Priority
- Filed and published
- Today
1 claim: 1 independent, 0 dependent
- 1Det således oppnådde fotokatalytiske titandioksyd har en spesifikk overflate i området fra 100 til 250 m 2 /g og en svovelkonsentrasjon på 0,3 til 5%. Katalytisk aktivitet har blitt bekreftet ved acetaldehyddekomponering og ved anionisk (SNC)2-radikaldannelse.
1 paragraph, as filed
The invention relates to a photocatalyst containing titanium dioxide, a method of using it and its use. A sulfur-containing titanium dioxide hydrate precipitate is precipitated through an acidic titanium oxysulfate solution at a temperature below the boiling point of the solution, for example in the range of 70 to 100 ° C, using crystal nuclei and without the addition of base. The precipitate is separated, washed and calcined.
17 members in 10 offices
Priority claims8
| Document | Office | Kind | Date |
|---|---|---|---|
| 20020624 | Finland | A | |
| 20020624 | Finland | A | |
| 0300251 | Finland | W | |
| 0300251 | Finland | W | |
| 020624 | – | – | – |
| FI20020000624 | – | – | – |
| PCTFI0300251 | – | – | – |
| WO2003FI00251 | – | – | – |
Members17
| Document | Office | Kind | |
|---|---|---|---|
| FI20020624A0 | Finland | A0 | |
| FI20020624A | Finland | A | |
| FI20020624A7 | Finland | A7 | |
| WO03082743A1 | World Intellectual Property Organization (WIPO) | A1 | |
| AU2003216759A1 | Australia | A1 | |
| FI113015B | Finland | B | |
| NO20044398LThis record | Norway | L | |
| EP1492729A1 | European Patent Office (EPO) | A1 | |
| JP2005521551A | Japan | A | |
| CN1646431A | China | A | |
| US2005181937A1 | United States of America | A1 | |
| US7138357B2 | United States of America | B2 | |
| JP4436910B2 | Japan | B2 | |
| NO328749B1 | Norway | B1 | |
| EP1492729B1 | European Patent Office (EPO) | B1 | |
| ES2396302T3 | Spain | T3 | |
| SI1492729T1 | Slovenia | T1 |
1 legal event, as the office reported them to INPADOC
Events
| Event | Code | |
|---|---|---|
| Lapsed by not paying the annual feesLapsedMM1K | MM1K |
Numbers
- Publication, DOCDB
- 20044398
- Publication, EPODOC
- NO20044398L
- Application
- 4398
- Application, DOCDB
- 20044398
- Application, EPODOC
- NO20040004398
Titles2
- Norwegian
- Fotokatalysatorer inneholdende titanoksyd, samt fremgangsmate og anvendelse derav
- English
- Photocatalysts containing titanium oxide, as well as process and use thereof
Classification
- CPC, 5
- B01J21/063
- C01G23/0532
- C01P2006/12
- C09C1/3661
- B01J35/39
- IPC, 6
- B01J35 00
- B01J21 06
- B01J27 053
- B01J37 03
- C01G23 053
- C09C1 36