US3939103A
Expired / Lapsed
US
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Catalytic product for the oxidative destruction of gaseous organic compounds and method for their preparation
Assignee: Compagnie Francaise Thomson Houston SA
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Filing: 1973-07-19
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Granted: 1976-02-17
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Expires: 1993-07-19
Abstract
Abstract A catalyst for the oxidative destruction of gaseous organic compounds comprises 50-80% of a mixture of active carbonates and oxides, i.e., 50-85% of manganese oxides, 0-30% of manganous carbonate, 3-10% of cupric oxide, and 0-15% of nickel oxides; and 50-20% of a cold-shapable refractory excipient. Organic compounds oxidized by the catalysts of this invention including xylenoles, pyridine, methylpyrrolidone, sulfur heterocyclics, etc.
Inventors
- 👤 Christian Belliot
- 👤 Etienne Cheylan
- 👤 Serge Madelaine
- 👤 Johannes Ebbing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:46
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/0009; B01D; B01D53/00; B01D53/34; B01D53/74; B01D53/86; B01D53/8668; B01D53/92; B01D53/94; B01D53/944; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/889; B01J23/8892
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
90 words
A catalyst for the oxidative destruction of gaseous organic compounds, which comprises between about 80 and about 50% of total catalyst weight of active ingredients and from about 20 to about 50% of total catalyst weight of a cold-shapable refractory excipient, wherein the active ingredients comprises from about 50% to about 85% by weight of rhombohedral manganese oxides, from 0 to about 30% by weight of manganous carbonate, from about 3 to about 10% by weight of cupric oxide, and from 0 to about 15% by weight of nickel oxides.
Claim 2
Dependent Claim
90 words
A catalyst for the oxidative destruction of gaseous organic compounds, which comprises between about 80 and about 50% of total catalyst weight of active ingredients and from about 20 to about 50% of total catalyst weight of a cold-shapable refractory excipient, wherein the active ingredients comprises from about 50% to about 85% by weight of rhombohedral manganese oxides, from 0 to about 30% by weight of manganous carbonate, from about 3 to about 10% by weight of cupric oxide, and from 0 to about 15% by weight of nickel oxides.
Claim 3
Dependent Claim
12 words
The catalyst of claim 1, wherein the refractory excipient is a cement.
Claim 4
Dependent Claim
13 words
The catalyst of claim 1, wherein the refractory excipient is a refractory earth.
Claim 5
Dependent Claim
51 words
The catalyst of claim 1, wherein the refractory excipient comprises about 30% of total catalyst weight and the active ingredients comprising about 70% of total catalyst weight comprise about 55% by weight of manganese oxides about 30% of manganous carbonate, about 5% of cupric oxide, and about 10% of nickel oxides.
Claim 6
Dependent Claim
62 words
The catalyst of claim 1, wherein the refractory excipient comprises about 30% of total catalyst weight and the active ingredients comprising about 70% of total catalyst weight comprise between about 80% and about 85% by weight of manganese oxides, between about 5% and about 10% by weight of cupric oxides, and between about 5% and about 15% by weight of nickel oxides.
Claim 7
Dependent Claim
28 words
The catalyst of claim 1, wherein the catalyst is shaped in a configuration selected from the group of configurations consisting of briquettes, rings, tubes, balls, rods, and granules.
Claim 8
Dependent Claim
28 words
The catalyst of claim 1, wherein said catalyst is supported on a shaped substrate, the shaped substrate having a configuration selected from among sheets, honeycombs, plates and grills.
Claim 9
Dependent Claim
19 words
The catalyst of claim 1, wherein said catalyst is supported on a substrate selected from refractory and metal substrates.
Claim 10
Dependent Claim
158 words
A method of making the catalyst of claim 1, which comprises: treating saturated aqueous solutions of a soluble manganese salt, a soluble cupric salt, and a soluble nickel salt in ratios to yield from about 50 to about 85% by weight of manganese, from about 3% to about 10% by weight of copper, and from 0 to about 15% by weight of nickel with at least 5% excess of a saturated solution of a bicarbonate salt to obtain a precipitate of combined manganese, cupric, and nickel carbonates and hydroxycarbonates and a supernatent mother liquor; adding to the precipitate of combined carbonates and hydroxycarbonates and the supernatant mother liquors a cold-shapable refractory excipient, wherein the excipient comprises from about 20% to about 50% of total weight, to form a paste; shaping the paste to form particles of a definite geometrical configuration; and heating the particles of a defined geometrical configuration in air at a temperature of at least 300°C.
Claim 11
Dependent Claim
104 words
A method of making the catalyst of claim 1, which comprises: preparing a mixture containing between about 50% and about 85% by weight of manganous carbonate, between about 3% and about 10% by weight of cupric hydroxycarbonate, and from 0 to about 15% by weight of nickel hydroxycarbonate; incorporating in the mixture from about 20% to about 50% of total weight of a refractory excipient, selected from a cement and a refractory earth, to form a paste; fabricating the paste into a definite geometrical configuration; and heating said paste fabricated into a definite geometrical configuration in air at a temperature of at least 300°C.
Claim 12
Dependent Claim
105 words
A method of making the catalyst of claim 1, which comprises: preparing a mixture containing between about 50% and about 85% by weight of manganous carbonate, between about 3% and about 10% by weight of cupric hydroxycarbonate, and from 0 to about 15% of nickel hydroxycarbonate; incorporating in the mixture from about 20% to about 50% of total weight of a refractory excipient, selected from a cement and a refractory earth, to form a paste; depositing the paste on a shaped substrate selected from refractory and metallic substrates; and heating said paste on the shaped substrate in air at a temperature of at least 300°C.
Claim 13
Dependent Claim
112 words
A method of making the catalyst of claim 1, which comprises: preparing a mixture containing between about 80% and about 85% by weight of manganous carbonate, between about 5% and about 10% by weight of cupric hydroxycarbonate, and between about 5% and about 15% by weight of nickel hydroxycarbonate; drying the mixture and heating the mixture in air at a temperature above 300°C; incorporating in the mixture dried and heated in air an excipient, selected from cement and a refractory earth to make from about 30% to about 50% by weight of catalyst obtained, to form a paste; fabricating the paste into a definite geometrical configuration; and permitting said paste to harden.
Claim 14
Dependent Claim
112 words
A method of making the catalyst of claim 1, which comprises: preparing a mixture containing between about 80% and about 85% by weight of manganous carbonate, between about 5% and about 10% by weight of cupric hydroxycarbonate, and between about 5% and about 15% by weight of nickel hydroxycarbonate; drying the mixture and heating the mixture in air at a temperature above 300°C; incorporating in the mixture dried and heated in air an excipient, selected from cement and a refractory earth to make from about 30% to about 50% by weight of catalyst obtained, to form a paste; depositing the paste on a shaped metallic substrate; and permitting said paste to harden.
Claim 15
Dependent Claim
28 words
The method of claim 10, wherein said paste fabricated into a definite geometrical configuration is heated in air at a temperature between about 600°C and about 1000° C.
Claim 16
Dependent Claim
23 words
The method of claim 12, wherein said mixture is dried and heated in air at a temperature between about 600°C and about 1000°C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-16 | 1979-08-18 | 1980-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-16 | 1983-08-18 | 1984-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-16 | 1987-08-18 | 1988-02-17 | $7700.00 | Window Closed / Lapsed |