EP0361385A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Deodorizing method and deodorizing catalyst
Assignee: Sakai Chemical Industry Co Ltd
•
Filing: 1989-09-26
•
Granted: —
•
Expires: 2009-09-26
Abstract
Abstract The present invention provides a deodorizing method for removing stinking components by oxidative destruction with ozone in the presence of a catalyst comprising the prescribed metal oxide and at least one selected from the group consisting of titanium dioxide and silver oxide and gold, or a catalyst comprising manganese dioxide and clay. Also, the present invention provides a deodorizing catalyst of which active components is carried at the range of 10 to 200 µm in thickness of the active components on the carrier, thereby stably removing stinking components in high rate, even when the reaction conditions are changed.
Inventors
- 👤 Masafumi Yoshimoto
- 👤 Tadao Nakatsuji
- 👤 Kazuhiko Nagano
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 16:48
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/74; B01D53/86; A; A61; A61L; A61L9/00; A61L9/015; B01D53/8603; B01D53/8606; B01D53/8612; B01D53/8659; B01D53/8662; B01D53/8668
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
61 words
A deodorizing method for removing stinking components by oxidative destruction with ozone in the presence of a catalyst comprising, as active components; at least one of metal oxide, each metal of which is selected from the group consisting of copper, manganese, cobalt, iron and nickel; and at least one selected from the group consisting of titanium dioxide, silver oxide and gold.
Claim 2
Dependent Claim
61 words
A deodorizing method for removing stinking components by oxidative destruction with ozone in the presence of a catalyst comprising, as active components; at least one of metal oxide, each metal of which is selected from the group consisting of copper, manganese, cobalt, iron and nickel; and at least one selected from the group consisting of titanium dioxide, silver oxide and gold.
Claim 3
Dependent Claim
27 words
A deodorizing method according to Claim 1, wherein the catalyst is selected from the group consisting of MnO₂-TiO₂, CuO-TiO₂, Co₃O₄-TiO₂, Fe₂O₃-TiO₂, Fe₂O₃-Au, MnO₂-Co₃O₄-TiO₂, CuO-MnO₂-Ag₂O, MnO₂-Co₃O₄-Ag₂O and NiO-MnO₂-TiO₂.
Claim 4
Dependent Claim
54 words
A deodorizing method according to Claim 1, wherein the concentration of said metal oxide, each metal of which is selected from the group consisting of Cu, Mn, Co, Fe and Ni, in said active components is in a range from 25 to 95% by weight as converted into the concentration of the metal alone.
Claim 5
Dependent Claim
26 words
A deodorizing method for removing stinking components by oxidative destruction with ozone in the presence of a catalyst comprising manganese dioxide and clay as active components.
Claim 6
Dependent Claim
26 words
A deodorizing method for removing stinking components by oxidative destruction with ozone in the presence of a catalyst comprising manganese dioxide and clay as active components.
Claim 7
Dependent Claim
20 words
A deodorizing method according to Claim 4, wherein the catalyst includes titanium dioxide in addition to manganese dioxide and clay.
Claim 8
Dependent Claim
41 words
A deodorizing method according to Claim 4, wherein the the catalyst includes at least one of metal oxide, each metal of which selected from the group consisting of copper, manganese, cobalt, nickel and silver in addition to manganese dioxide and clay.
Claim 9
Dependent Claim
40 words
The catalyst for using in deodorizing method for removing stinking components by oxidative destruction with ozone, which comprises an inactive carrier, and active components carried on said inactive carrier at the range from 10 to 200 µm of the thickness.
Claim 10
Dependent Claim
40 words
The catalyst for using in deodorizing method for removing stinking components by oxidative destruction with ozone, which comprises an inactive carrier, and active components carried on said inactive carrier at the range from 10 to 200 µm of the thickness.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.