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EP0311066A2
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EP
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Process for the production of copper-containing zeolite and the method of application thereof
Assignee: Tosoh Corp
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Filing: 1988-10-06
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Granted: —
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Expires: 2008-10-06
Abstract
Abstract A process for producing a copper-containing zeolite comprising; subjecting a zeolite having the lattice spacings (d value) indicated in Table 1 as estimated by the powder X-ray diffraction to ion exchange with copper ions in an aqueous solution containing a water soluble copper salt and ammonia; and a process for decomposing nitrogen oxides with the copper-containing zeolite as catalyst.
Inventors
- 👤 Katsumi Kamiyama
- 👤 Kazushige Igawa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 09:42
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; B01J29/72; B01J29/76; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/9404; B01D53/9409; B01D53/9413; B01D53/9418; B01D2251/00; B01D2251/20; B01D2251/206; B01D2251/2062; B01D2255/00; B01D2255/20; B01D2255/207; B01D2255/20761; B01D2255/50; B01D2255/90; B01D2255/911
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
45 words
Process for producing a copper-containing zeolite; comprising: subjecting a zeolite having the lattice spacings (d values) indicated in Table 1 as estimated by the powder X-ray diffraction to ion exchange with copper ions in an aqueous solution containing a water soluble copper salt and ammonia.
Claim 2
Dependent Claim
45 words
Process for producing a copper-containing zeolite; comprising: subjecting a zeolite having the lattice spacings (d values) indicated in Table 1 as estimated by the powder X-ray diffraction to ion exchange with copper ions in an aqueous solution containing a water soluble copper salt and ammonia.
Claim 3
Dependent Claim
12 words
Process according to Claim 1, in which said zeolite is a molding.
Claim 4
Dependent Claim
30 words
Process according to Claim 1 or Claim 2, in which said zeolite is in the form of a slurry having a pH value in the range from 4 to 12.
Claim 5
Dependent Claim
74 words
Process for catalytic decomposition of nitrogen oxides for removal of the nitrogen oxides from a gas which contains said nitrogen oxides comprising: bringing said gas containing nitrogen oxides into contact with a copper-containing zeolite prepared by subjecting a zeolite having the lattice spacings (d values) indicated in Table 1 as estimated by the powder X-ray diffraction to ion exchange with copper ions in an aqueous solution containing a water soluble copper salt and ammonia.
Claim 6
Dependent Claim
74 words
Process for catalytic decomposition of nitrogen oxides for removal of the nitrogen oxides from a gas which contains said nitrogen oxides comprising: bringing said gas containing nitrogen oxides into contact with a copper-containing zeolite prepared by subjecting a zeolite having the lattice spacings (d values) indicated in Table 1 as estimated by the powder X-ray diffraction to ion exchange with copper ions in an aqueous solution containing a water soluble copper salt and ammonia.
References Cited (Backward Citations)
No citation records indexed.
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