EP0121339A2
Expired / Lapsed
EP
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Method for removal of poisonous gases
Assignee: Takeda Pharmaceutical Co Ltd
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Filing: 1984-03-02
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Granted: —
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Expires: 2004-03-02
Abstract
Abstract Hydrides of As, B, P, Sb or Se in a gas can easily be removed from the gas containing the same by contacting the gas with an adsorbant consisting of activated carbon containing;(1) copper oxide and(2) at least one of (a), (b) and (c) selected from the group consisting of;(a) at least one of the alkali metal compounds and(b) at least one of the alkaline earth metal compounds and(c) at least one of the compounds of Al, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Cd and Pb.
Inventors
- 👤 Hiroshi Nishino
- 👤 Toshio Aibe
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 23:19
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/20; B01D; B01D53/00; B01D53/02; B01D53/34; B01D53/46
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
91 words
A method for removal of at least one of the hydrides of As, B, P, Sb or Se from a gas containing the same, which comprises contacting the gas with an activated carbon containing: (1) copper oxide and (2) at least one of (a), (b) and (c) selected from the group consisting of; (a) at least one of alkali metal compounds, (b) at least one of alkaline earth metal compounds and (c) at least one of the compounds of Aℓ, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Cd and Pb.
Claim 2
Independent Claim
91 words
A method for removal of at least one of the hydrides of As, B, P, Sb or Se from a gas containing the same, which comprises contacting the gas with an activated carbon containing: (1) copper oxide and (2) at least one of (a), (b) and (c) selected from the group consisting of; (a) at least one of alkali metal compounds, (b) at least one of alkaline earth metal compounds and (c) at least one of the compounds of Aℓ, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Cd and Pb.
Claim 3
Dependent Claim
28 words
A method as claimed in claim 1, wherein the adsorbent is one consisting of activated carbon containing: (1) copper oxide; and (2) at least one alkali metal compound.
Claim 4
Dependent Claim
29 words
A method as claimed in claim 1, wherein the adsorbent is one consisting of activated carbon containing: (1) copper oxide; and (2) at least one alkaline earth metal compound.
Claim 5
Dependent Claim
41 words
A method as claimed in claim 1, wherein the adsorbent is one consisting of activated carbon containing: (1) copper oxide and (2) at least one of the compounds of Aℓ, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Cd and Pb.
Claim 6
Dependent Claim
51 words
A method as claimed in claim 1, wherein the adsorbent is one consisting of activated carbon containing: (1) copper oxide; and (2) (a) at least one of the alkali metal compounds,and (c) at least one of the compounds of Aℓ, Ti, V, Cr, Mn, Fe, Co, Ni Zn, Cd and Pb.
Claim 7
Dependent Claim
64 words
A method as claimed in claim 1, wherein the adsorbent is one consisting of activated carbon containing; (1) copper oxide; and (2) (a) at least one of the alkali metal compounds, (b) compounds of at least one of the alkaline earth metals , and (c) at least one of the compounds of Aℓ, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Cd and Pb
Claim 8
Dependent Claim
34 words
A method as claimed in claim 1, wherein the adsorbent is one consisting of an activated carbon containing: (1) copper oxide; and (2) (a) a compound of potassium, and (c) a compound of chromium.
Claim 9
Dependent Claim
51 words
A method as claimed in claim 1, wherein the adsorbent is one consisting of activated carbon containing: Component (1) in an amount of 0.1 to 3.0mg-atom as metal per g of activated carbon;and component (2) in an amount of 0.1 to 5.0 mg-atom as metal per g of the activated carbon.
Claim 10
Dependent Claim
24 words
A method as claimed in claim 1, wherein the gas is contacted with the activated carbon at a temperature of not more than 200°C.
References Cited (Backward Citations)
No citation records indexed.
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