Patent US3839077A successfully refreshed from Google Patents.
US3839077A
Expired / Lapsed
US
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Decomposition of metal carbonyls
Assignee: Huntington Alloys Corp
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Filing: 1971-06-21
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Granted: 1974-10-01
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Expires: 1991-06-21
Abstract
Abstract Fluid bed reactors for decomposing metal carbonyls and comprising a vertically disposed, elongated vessel for confining a bed of fluidized particulate material are provided with heating coils, that can be heat exchange coils through which heating fluid is passed or electrical resistance heating coils, in the lower part of the reactor and fluidized bed so that the lower portion of the fluidized bed functions as a heating region while the upper portion functions as a decomposing zone. The lower and upper portions of the fluidized bed are volumetrically proportioned to provide substantially equal gas velocities to promote conveyance of heated particulate material from the heating region to the decomposing region. A process for decomposing metal carbonyls is also disclosed in which separate heating and decomposing regions in a fluidized bed are established and a metal carbonyl is introduced into the decomposing region via a water-cooled lance to be decomposed on heated particulate material.
Inventors
- 👤 R Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:59
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/16; B22F9/30; B22F9/305; C; C22; C22B; C22B5/00; C22B5/02; C22B5/20
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
78 words
A PROCESS FOR DECOMPOSING AT LEAST ONE METAL CARBONYL IN A FLUIDIZED BED WHICH COMPRISES; ESTABLISHING, WITHIN A FLUIDIZED BED OF PARTICULATE MATERIAL, A LOWER HEATING REGION AND AN UPPER DECOMPOSING REGION; HEATING PARTICULATE MATERIAL WITHIN THE HEATING REGION TO MAINTAIN THE FLUIDIZED PARTICULATE MATERIAL WITHIN THE DECOMPOSING REGION ABOVE THE METAL CARBONYL DECOMPOSITION TEMPERATURE; AND INTRODUCING THE METAL CARBONYL INTO THE DECOMPOSING REGION TO DECOMPOSE THE METAL CARBONYL ON THE HEATED PARTICULATE MATERIAL IN THE DECOMPOSING REGION.
Claim 2
Dependent Claim
78 words
A PROCESS FOR DECOMPOSING AT LEAST ONE METAL CARBONYL IN A FLUIDIZED BED WHICH COMPRISES; ESTABLISHING, WITHIN A FLUIDIZED BED OF PARTICULATE MATERIAL, A LOWER HEATING REGION AND AN UPPER DECOMPOSING REGION; HEATING PARTICULATE MATERIAL WITHIN THE HEATING REGION TO MAINTAIN THE FLUIDIZED PARTICULATE MATERIAL WITHIN THE DECOMPOSING REGION ABOVE THE METAL CARBONYL DECOMPOSITION TEMPERATURE; AND INTRODUCING THE METAL CARBONYL INTO THE DECOMPOSING REGION TO DECOMPOSE THE METAL CARBONYL ON THE HEATED PARTICULATE MATERIAL IN THE DECOMPOSING REGION.
Claim 3
Dependent Claim
107 words
A process for decomposing at least one metal carbonyl selected from the group consisting of nickel carbonyl and iron pentacarbonyl in a fluidized bed which comprises establishing, within a fluidized bed of particulate material, a lower heating region and an upper decomposing region; heating particulate material within the heating region to maintain the temperature of the particulate material within the decomposing region at a temperature between about 300*F. and 500*F. when decomposing nickel carbonyl and between about 400*F. and 600*F. when decomposing iron pentacarbonyl; and introducing the metal carbonyl into the decomposing region through a water-cooled lance to decompose the metal carbonyl on the heated particulate material.
Claim 4
Dependent Claim
107 words
A process for decomposing at least one metal carbonyl selected from the group consisting of nickel carbonyl and iron pentacarbonyl in a fluidized bed which comprises establishing, within a fluidized bed of particulate material, a lower heating region and an upper decomposing region; heating particulate material within the heating region to maintain the temperature of the particulate material within the decomposing region at a temperature between about 300*F. and 500*F. when decomposing nickel carbonyl and between about 400*F. and 600*F. when decomposing iron pentacarbonyl; and introducing the metal carbonyl into the decomposing region through a water-cooled lance to decompose the metal carbonyl on the heated particulate material.
Claim 5
Dependent Claim
76 words
A process for decomposing nickel carbonyl in a fluidized bed which Comprises: establishing, within a fluidized bed of particulate material, a lower heating region and an upper decomposing region, heating particulate material within the heating region to maintain the fluidized particulate material within the decomposing region at a temperature between about 400*F. and 450*F.; and introducing nickel carbonyl into the decomposing region to decompose the nickel carbonyl on the heated particulate material in the decomposing region.
Claim 6
Dependent Claim
76 words
A process for decomposing nickel carbonyl in a fluidized bed which Comprises: establishing, within a fluidized bed of particulate material, a lower heating region and an upper decomposing region, heating particulate material within the heating region to maintain the fluidized particulate material within the decomposing region at a temperature between about 400*F. and 450*F.; and introducing nickel carbonyl into the decomposing region to decompose the nickel carbonyl on the heated particulate material in the decomposing region.
Claim 7
Dependent Claim
70 words
A process for decomposing iron pentacarbonyl in a fluidized bed which comprises: establishing, within a fluidized bed of particulate material, a lower heating region and an upper decomposing region; heating particulate material within the heating region to maintain fluidized particulate material within the decomposing region at a temperature between about 450*F. and 525*F.; introducing iron pentacarbonyl into the decomposing region to decompose the metal carbonyl on the heated particulate material.
Claim 8
Dependent Claim
70 words
A process for decomposing iron pentacarbonyl in a fluidized bed which comprises: establishing, within a fluidized bed of particulate material, a lower heating region and an upper decomposing region; heating particulate material within the heating region to maintain fluidized particulate material within the decomposing region at a temperature between about 450*F. and 525*F.; introducing iron pentacarbonyl into the decomposing region to decompose the metal carbonyl on the heated particulate material.
Claim 9
Dependent Claim
35 words
The process as described in claim 4 wherein the iron pentacarbonyl is introduced into the decomposing region as liquid iron pentacarbonyl to provide high production rates and to lower the risk of forming elemental carbon.
Claim 10
Independent Claim
186 words
A method for decomposing at least one metal carbonyl in a fluidized bed retained in a fluid bed reactor equipped with heating means in the lowermost portion of the fluidized bed to form a heating region having a portion of its volume displaced by the heating means and with means for introducing metal carbonyl into the upper portion of the fluidized bed to form a decomposing region which method comprises establishing a fluidized bed of particulate material in the fluid bed reactor by introducing a fluidizing gas into the heating region of the fluidized bed, heating particulate material within the heating region to maintain the fluidized particulate material within the decomposing region above the metal carbonyl decomposition temperature; and introducing the metal carbonyl into the decomposing region to decompose the metal carbonyl on the heated particulate material in the decomposing region, the metal carbonyl being introduced into the decomposing zone in such a manner as to equalize substantially the velocity of gases, including generated carbon monoxide, in the heating and decomposing regions to promote conveyance of particulate material between the heating region and the decomposing region.
Claim 11
Independent Claim
186 words
A method for decomposing at least one metal carbonyl in a fluidized bed retained in a fluid bed reactor equipped with heating means in the lowermost portion of the fluidized bed to form a heating region having a portion of its volume displaced by the heating means and with means for introducing metal carbonyl into the upper portion of the fluidized bed to form a decomposing region which method comprises establishing a fluidized bed of particulate material in the fluid bed reactor by introducing a fluidizing gas into the heating region of the fluidized bed, heating particulate material within the heating region to maintain the fluidized particulate material within the decomposing region above the metal carbonyl decomposition temperature; and introducing the metal carbonyl into the decomposing region to decompose the metal carbonyl on the heated particulate material in the decomposing region, the metal carbonyl being introduced into the decomposing zone in such a manner as to equalize substantially the velocity of gases, including generated carbon monoxide, in the heating and decomposing regions to promote conveyance of particulate material between the heating region and the decomposing region.
Claim 12
Dependent Claim
69 words
The method described in claim 6 wherein the metal carbonyl is at least one member selected from the group consisting of nickel carbonyl and iron pentacarbonyl and particulate material within the heating region is heated to maintain the temperature of the particulate material within the decomposing region at a temperature between about 300*F. and 500*F. when decomposing nickel carbonyl and between about 400*F. and 600*F. when decomposing iron pentacarbonyl.
Claim 13
Dependent Claim
19 words
The method described in claim 7 wherein the metal carbonyl is gaseous and is diluted with an inert gas.
Claim 14
Dependent Claim
13 words
The method described in claim 7 wherein the inert gas is carbon monoxide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |