Raw materials for vanadium-free or vanadium-reduced denox catalysts, and method for producing same
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C01G-023/047
B01J-023/888
B01D-053/94
B01J-037/03
B01J-021/06
B01J-035/00
B01J-035/10
B01J-037/00
B01J-037/02
B01J-021/16
B01J-023/00
B01J-035/04
출원번호
US-0116365
(2012-03-30)
등록번호
US-9248433
(2016-02-02)
우선권정보
EP-11165659 (2011-05-11)
국제출원번호
PCT/EP2012/055810
(2012-03-30)
§371/§102 date
20131213
(20131213)
국제공개번호
WO2012/152506
(2012-11-15)
발명자
/ 주소
Becker, Ralf
Auer, Gerhard
Hipler, Frank
Galbarczyk, Nicole
Lange, Kai-Sven
Günnel, Horst
Dörschug, Uwe
출원인 / 주소
Sachtleben Pigment GmbH
대리인 / 주소
Cahn & Samuels, LLP
인용정보
피인용 횟수 :
1인용 특허 :
6
초록▼
A composition that comprises a titanium compound, an iron compound, and a tungsten compound, wherein the titanium compound has a microcrystalline anatase structure and/or is obtained in the production of TiO2 according to the sulphate process, during hydrolysis of a solution which contains titanyl s
A composition that comprises a titanium compound, an iron compound, and a tungsten compound, wherein the titanium compound has a microcrystalline anatase structure and/or is obtained in the production of TiO2 according to the sulphate process, during hydrolysis of a solution which contains titanyl sulphate, and also in that the composition has a vanadium content, calculated as V, of less than 0.15 wt. % in relation to the solids content of the composition. A catalyst or catalyst raw material containing the claimed composition, as well as to a dimensionally stable and catalytically active solid body can be obtained by mixing the composition defined above with binders, plasticisers and optionally, further additives, molding the obtained composition preferably by extrusion, and subsequently carrying out calcination, or by providing a dimensionally stable and catalytically active solid body that can be obtained by applying the composition, optionally together with binders, plasticisers and further additives, to a substrate, and subsequently carrying out calcination.
대표청구항▼
1. A composition, comprising: a titanium compound,an iron compound, anda tungsten compound,wherein the titanium compound is obtained in the production of TiO2 according to the sulfate process during hydrolysis of a titanyl sulfate-containing solution and/or has a microcrystalline anatase structure,w
1. A composition, comprising: a titanium compound,an iron compound, anda tungsten compound,wherein the titanium compound is obtained in the production of TiO2 according to the sulfate process during hydrolysis of a titanyl sulfate-containing solution and/or has a microcrystalline anatase structure,wherein the composition has a vanadium content, calculated as V, of less than 0.15% by weight based on the solids content of the composition, andwherein the composition has a BET surface area of greater 150 m2/g. 2. The composition as claimed in claim 1, wherein the titanium compound which is obtained in the production of TiO2 according to the sulfate process during hydrolysis of a titanyl sulfate-containing solution and/or has a microcrystalline anatase structure makes up more than 50% by weight of all titanium-containing components of the composition. 3. The composition as claimed in claim 1, wherein the iron compound is an organic iron compound, and/or the iron content, calculated as Fe2O3, is from 0.1 to 5% by weight, based on the solids content of the composition. 4. The composition as claimed in claim 3, wherein the iron compound is ammonium iron(III) citrate. 5. The composition as claimed in claim 1, wherein the tungsten content, calculated as WO3, is from 2 to 30% by weight, based on the solids content of the composition. 6. The composition as claimed in claim 1, wherein the composition further comprises a cerium compound and has a cerium content, calculated as CeO2, of from 0.01 to 5% by weight, based on the solids content of the composition. 7. The composition as claimed in claim 1, further comprises a Zr content, calculated as ZrO2, of less than 8% by weight, based on the solids content of the composition. 8. The composition as claimed in claim 1, wherein the sulfate content of the composition is from 0.05 to 3.5% by weight. 9. The composition as claimed in claim 1, wherein a ratio of Cl/TiO2 is less than 0.0005. 10. The composition as claimed in claim 1, wherein it is present in the form of a suspension or paste. 11. A process for producing a composition as claimed in claim 1, comprising mixing of a titanium compound which is obtained in the production of TiO2 according to the sulfate process during hydrolysis of a titanyl sulfate-containing solution and/or has a microcrystalline anatase structure, an iron compound and a tungsten compound. 12. The process as claimed in claim 11, further comprising depositing a water-soluble iron compound and/or a water-soluble tungsten compound on the titanium compound. 13. The process as claimed in claim 11, wherein the composition has not been subjected to any thermal treatment above 300° C. before being processed to form catalysts and a BET surface area of the composition of from 100 to 500 m2/g, is obtained. 14. A catalyst or catalyst raw material comprising a composition as claimed in claim 1. 15. A dimensionally stable, catalytically active solid body obtained by mixing of the composition as claimed in claim 1 with binders, plasticizers and optionally further additives, shaping of the resulting composition, and subsequent calcination. 16. The catalytically active solid body as claimed in claim 15, wherein said shaping is by extrusion. 17. A dimensionally stable, catalytically active solid body obtained by application of the composition as claimed in claim 1, optionally together with binders, plasticizers and/or further additives, to a support material and subsequent calcination. 18. A composition, comprising: a titanium compound;an iron compound; anda tungsten compound,wherein the titanium compound is selected from the group consisting of: 1) a titanium compound obtained in the production of TiO2 according to the sulfate process during hydrolysis of a titanyl sulfate-containing solution, 2) a titanium compound having a microcrystalline anatase structure, and 3) a titanium compound obtained in the production of TiO2 according to the sulfate process during hydrolysis of a titanyl sulfate-containing solution and having a microcrystalline anatase structure,wherein the composition has a vanadium content, calculated as V, of less than 0.15% by weight, based on the solids content of the composition, andwherein the composition has a BET surface area of greater than 150 m2/g.
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이 특허에 인용된 특허 (6)
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