Patent US4312779A successfully refreshed from Google Patents.
US4312779A
Expired / Lapsed
US
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Recovery of catalysts
Assignee: Honeywell UOP LLC
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Filing: 1980-09-25
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Granted: 1982-01-26
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Expires: 2000-09-25
Abstract
Abstract Metal catalyst complexes such as those containing a metal of Group VIII of the Periodic Table which have been used in organic reactions such as the hydroformylation of olefins to form alcohols may be recovered from the product alcohols by treating said alcohol with anhydrous gaseous ammonia at temperatures in the range of from about 0° to about 100° C. and pressures in the range of from about 5 to about 1000 psi to precipitate the solution catalyst complex and thereby enable the separation of the catalyst complex from the product to be accomplished in a relatively simple manner.
Inventors
- 👤 Michael H. Quick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:51
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; B01J31/20; B01J31/02; B01J31/0234; B01J31/0235; B01J31/0237; B01J31/40; B01J31/4015; B01J31/4023; B01J31/4038; B01J31/4046; C; C01; C01G; C01G51/00; C01G51/02; C01G55/00; C01G55/007; C01G55/008; C07; C07C; C07C29/00; C07C29/16; B01J2231/00; B01J2231/30; B01J2231/32; B01J2231/321; B01J2531/00; B01J2531/02; B01J2531/0202; B01J2531/0205; B01J2531/0211; B01J2531/80; B01J2531/82; B01J2531/821; B01J2531/822; B01J2531/84; B01J2531/845; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
160 words
A process for the recovery of cobalt, rhodium or ruthenium metal complex catalyst from a liquid hydroformylation alcohol reaction product obtained from treatment of an olefinic hydrocarbon with hydrogen and carbon monoxide in the presence of said cobalt, rhodium or ruthenium metal complex catalyst at hydroformylation conditions comprising a temperature in the range of from about 50° to about 250° C. and a pressure in the range of from about 50 to about 300 atmospheres, which recovery process comprises treating said hydroformylation alcohol reaction product with an effective amount of gaseous anhydrous ammonia at a temperature in the range of from about 0° to about 100° C. and a pressure in the range of from about 5 to about 1000 p.s.i. to precipitate said cobalt, rhodium or ruthenium metal complex catalyst, separating said precipitated cobalt, rhodium or ruthenium solid metal complex catalyst precipitate from said hydroformylation alcohol reaction product, and recovering said cobalt, rhodium or ruthenium solid metal complex catalyst.
Claim 2
Dependent Claim
160 words
A process for the recovery of cobalt, rhodium or ruthenium metal complex catalyst from a liquid hydroformylation alcohol reaction product obtained from treatment of an olefinic hydrocarbon with hydrogen and carbon monoxide in the presence of said cobalt, rhodium or ruthenium metal complex catalyst at hydroformylation conditions comprising a temperature in the range of from about 50° to about 250° C. and a pressure in the range of from about 50 to about 300 atmospheres, which recovery process comprises treating said hydroformylation alcohol reaction product with an effective amount of gaseous anhydrous ammonia at a temperature in the range of from about 0° to about 100° C. and a pressure in the range of from about 5 to about 1000 p.s.i. to precipitate said cobalt, rhodium or ruthenium metal complex catalyst, separating said precipitated cobalt, rhodium or ruthenium solid metal complex catalyst precipitate from said hydroformylation alcohol reaction product, and recovering said cobalt, rhodium or ruthenium solid metal complex catalyst.
Claim 3
Dependent Claim
23 words
The process as set forth in claim 1 further characterized in that said gaseous anhydrous ammonia treatment is effected in an inert atmosphere.
Claim 4
Dependent Claim
20 words
The process as set forth in claim 2 in which said inert atmosphere is supplied by the presence of nitrogen.
Claim 5
Dependent Claim
17 words
The process as set forth in claim 1 in which said rhodium metal catalyst complex comprises hexarhodiumhexadecacarbonyl.
Claim 6
Dependent Claim
18 words
The process as set forth in claim 1 in which said rhodium metal catalyst complex comprises chlorodicarbonylrhodium dimer.
Claim 7
Dependent Claim
18 words
The process as set forth in claim 1 in which said ruthenium metal catalyst complex comprises ruthenium carbonyl.
Claim 8
Dependent Claim
17 words
The process as set forth in claim 1 in which said cobalt metal catalyst complex comprises hexacobalthexadecacarbonyl.
Claim 9
Dependent Claim
20 words
The process as set forth in claim 1 in which said alcohol is dodecanol and said olefinic hydrocarbon is hendecene.
Claim 10
Dependent Claim
20 words
The process as set forth in claim 1 in which said alcohol is pentanol and said olefinic hydrocarbon is butene.
Claim 11
Dependent Claim
20 words
The process as set forth in claim 1 in which said alcohol is nonanol and said olefinic hydrocarbon is octene.
Claim 12
Dependent Claim
20 words
The process as set forth in claim 1 in which said alcohol is hexadecanol and said olefinic hydrocarbon is pentadecene.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-01-25 | 1985-07-27 | 1986-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-25 | 1989-07-27 | 1990-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-25 | 1993-07-27 | 1994-01-26 | $7700.00 | Window Closed / Lapsed |