Patent US3929900A successfully refreshed from Google Patents.
US3929900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous process for the production of oxygen containing compounds
Assignee: Hoechst AG
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Filing: 1973-12-14
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Granted: 1975-12-30
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Expires: 1993-12-14
Abstract
Abstract An improvement in a process of forming an aldehyde/ or alcohol by the Oxo process wherein an olefinically unsaturated hydrocarbon is reacted with carbon monoxide and hydrogen in the presence of a group VIII B catalyst which improvement involves introducing the olefinically unsaturated hydrocarbon, hydrogen and carbon monoxide together with the catalyst into the bottom of a first reaction zone, allowing the reactants to rise in said reaction zone, passing liquid reactants from the top of said first reaction zone into the top of a second reaction zone, withdrawing liquid reaction mixture from the bottom of the second reaction zone and withdrawing gaseous reactants from the second reaction zone.
Inventors
- 👤 Friedrich Schnur
- 👤 Josef Hibbel
- 👤 Boy Cornils
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:19
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/24; B01J19/2415; B01J19/2425; C; C07; C07C; C07C45/00; C07C45/49; C07C45/50; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00076; B01J2219/00083; B01J2219/00159
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
130 words
IN A PROCESS FOR FORMING AN ALDENYDE AND/OR ALCOHOL BY THE OXO-PROCESS WHEREIN AN OLEFINICALLY UNSATURATED HYDROC R BON IS REACTED WITH CARBON MONOXIDE AND HYDROGEN IN THE PRESENCE OF A GROUP VIIB CATALYST, THE IMPROVEMENT WHICH COMPRISES INTRODUCING SAID OLEFINICALLY UNSATURATED HYDROCARBON, SAID HYDROGEN, CARBON MONOXIDE AND CATALYST INTO THE BOTTOM OF A FIRST REACTION ZONE AND ALLOWING THE REACTANTS TO RISE IN SAID FIRST REACTION ZONE, PASSING LIQUID REACTANTS FROM THE TOP OF SAID FIRST REACTION ZONE INTO THE TOP OF A SECOND REACTION ZONE, ALLOWING A PORTION OF THE LIQUID REACTION MIXTURE FROM SECOMD REACTION ZONE TO ENTER THE BOTTOM OF SAID FIRST REACTION ZONE, WITHDRAWING LIQUID REACTION MIXTURE FROM THE BOTTOM OF SAID SECOND REACTION ZONE WITHDRAWING GASEOUS REACTANTS FROM SAID FIRST AND/OR SECOND REACTION ZONE.
Claim 2
Dependent Claim
130 words
IN A PROCESS FOR FORMING AN ALDENYDE AND/OR ALCOHOL BY THE OXO-PROCESS WHEREIN AN OLEFINICALLY UNSATURATED HYDROC R BON IS REACTED WITH CARBON MONOXIDE AND HYDROGEN IN THE PRESENCE OF A GROUP VIIB CATALYST, THE IMPROVEMENT WHICH COMPRISES INTRODUCING SAID OLEFINICALLY UNSATURATED HYDROCARBON, SAID HYDROGEN, CARBON MONOXIDE AND CATALYST INTO THE BOTTOM OF A FIRST REACTION ZONE AND ALLOWING THE REACTANTS TO RISE IN SAID FIRST REACTION ZONE, PASSING LIQUID REACTANTS FROM THE TOP OF SAID FIRST REACTION ZONE INTO THE TOP OF A SECOND REACTION ZONE, ALLOWING A PORTION OF THE LIQUID REACTION MIXTURE FROM SECOMD REACTION ZONE TO ENTER THE BOTTOM OF SAID FIRST REACTION ZONE, WITHDRAWING LIQUID REACTION MIXTURE FROM THE BOTTOM OF SAID SECOND REACTION ZONE WITHDRAWING GASEOUS REACTANTS FROM SAID FIRST AND/OR SECOND REACTION ZONE.
Claim 3
Dependent Claim
47 words
A process according to claim 1 wherein the withdrawal liquid from said second reaction zone is passed into the bottom of a third reaction zone cocurrently with a mixture of carbon monoxide and hydrogen and liquid product is recovered at the top of said third reaction zone.
Claim 4
Dependent Claim
23 words
A process according to claim 2 wherein said carbon monoxide and hydrogen are recycled carbon monoxide and hydrogen from the second reaction zone.
Claim 5
Dependent Claim
25 words
A process according to claim 3 wherein said carbon monoxide and hydrogen are recycled carbon monoxide and hydrogen from the first and second reaction zones.
Claim 6
Dependent Claim
47 words
A process according to claim 1 wherein the withdrawn liquid from said second reaction zone is passed into the top of a third reaction zone and passes downwardly therein against countercurrently passing carbon monoxide and hydrogen and is withdrawn at the bottom of said third reaction zone.
Claim 7
Dependent Claim
23 words
A process according to claim 5 wherein said carbon monoxide and hydrogen are recycled carbon monoxide and hydrogen from the second reaction zone.
Claim 8
Dependent Claim
25 words
A process according to claim 6 wherein said carbon monoxide and hydrogen are recycled carbon monoxide and hydrogen from said first and second reaction zones.
Claim 9
Dependent Claim
25 words
A process according to claim 1 wherein cooling fluid is passed in indirect heat exchange with the reactants in said first and second reaction zone.
Claim 10
Dependent Claim
25 words
A process according to claim 2 wherein cooling fluid is passed in indirect heat exchange with the reactants in said first and second reaction zone.
Claim 11
Dependent Claim
25 words
A process according to claim 5 wherein cooling fluid is passed in indirect heat exchange with the reactants of the first and second reaction zone.
Claim 12
Dependent Claim
43 words
A process according to claim 1 wherein the liquid reactants from said second reaction zone are reacted with carbon monoxide and hydrogen in a third reaction zone and a cooling fluid is passed in indirect heat exchange through all of said reaction zones.
Claim 13
Dependent Claim
19 words
A process according to claim 1 wherein gaseous reactants are withdrawn from the top of said first reaction zone.
Claim 14
Dependent Claim
31 words
A process according to claim 12 wherein a portion of the gases removed from the top of the first reaction zone are recycled to the bottom of said first reaction zone.
Claim 15
Dependent Claim
30 words
A process according to claim 1 wherein the volume of the first reaction zone amounts to 20 to 60% of the entire volume of the first and second reaction zones.
Claim 16
Dependent Claim
30 words
A process according to claim 1 wherein the volume of the first reaction zone amounts to 25 to 35% of the entire volume of the first and second reaction zones.
Claim 17
Dependent Claim
53 words
A process according to claim 12 wherein the gaseous reactants withdrawn from the first reaction zone amount to 10 to 100% of the total amount of carbon monoxide and hydrogen introduced into the first reaction zone, and the withdrawn carbon monoxide and hydrogen is recirculated to the bottom of the first reaction zone.
Claim 18
Dependent Claim
51 words
A process according to claim 12 wherein the amount of gas withdrawn from the first reaction zone amounts to between 20 and 40% of the amount of gas introduced into the first reaction zone and a portion of the so withdrawn gases recirculated to the bottom of the first reaction zone.
Claim 19
Dependent Claim
59 words
A process according to claim 1 wherein the liquid reactants from the second reaction zone are introduced into a third reaction zone, into said third reaction zone there is introduced recycled carbon monoxide and hydrogen and said third reaction zone has a volume amounting to 3 to 15% of the entire volume of the first and second reaction zones.
Claim 20
Dependent Claim
31 words
A process according to claim 18 wherein the volume of the third reaction zone amounts to between 5 and 10% of the entire volume of the first and second reaction zones.
Claim 21
Dependent Claim
42 words
A process according to claim 1 wherein said first reaction zone and said second reaction zone are contained within a common reaction vessel and are separated by a baffle over which reactants from said first reaction zone to said reactIon zone pass.
Claim 22
Dependent Claim
45 words
A process according to claim 20 wherein the liquid reactants which are passed from the first reaction zone over the baffle into the second reaction zone are passed under turbulent conditions and the reactants are maintained within the second reaction zone under conditions of turbulence.
Claim 23
Dependent Claim
48 words
A process according to claim 20 wherein liquid is withdrawn from said second reaction zone and is passed into the bottom of a third reaction zone cocurrently with a mixture of carbon monoxide and hydrogen and liquid product is recovered at the top of said third reaction zone.
Claim 24
Dependent Claim
23 words
A process according to claim 22 wherein said carbon monoxide and hydrogen are recycled carbon monoxide and hydrogen in the second reaction zone.
Claim 25
Dependent Claim
20 words
A process according to claim 20 wherein the reactor contains said first and second reaction zones coaxially of one another.
Claim 26
Dependent Claim
22 words
A process according to claim 24 wherein the reactor contains a third reaction zone coaxial of said first and second reaction zones.
Claim 27
Dependent Claim
32 words
A process according to claim 20 wherein liquid product from said second reaction zone is withdrawn from said reactor via a conduit and introduced into the bottom of a third reaction zone.
References Cited (Backward Citations)
US2557701A
Cited
US2711429A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |