US3892818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic conversion of hydrocarbon chlorides to hydrogen chloride and hydrocarbons
Assignee: Bayer AG
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Filing: 1972-12-07
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Granted: 1975-07-01
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Expires: 1992-12-07
Abstract
Abstract The present invention relates to a process for the conversion of hydrocarbon chlorides in the presence of hydrogen to hydrocarbons and hydrogen chloride wherein the process takes place in the gaseous phase and in the presence of rhodium-containing catalysts.
Inventors
- 👤 Gerhard Scharfe
- 👤 Rolf-Ernst Wilhelms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:18
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/26; B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/46; B01J23/464; C01; C01B; C01B7/00; C01B7/01; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/06; C07C2521/08; C07C2521/18; C07C2523/00; C07C2523/02; C07C2523/04; C07C2523/16; C07C2523/20; C07C2523/22; C07C2523/24; C07C2523/26; C07C2523/28; C07C2523/30; C07C2523/38; C07C2523/40; C07C2523/42; C07C2523/44; C07C2523/46; C07C2523/48; C07C2523/52; C07C2523/70; C07C2523/72; C07C2523/74; C07C2523/745; C07C2523/75; C07C2523/755; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/93; Y10S585/935
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
210 words
A PROCESS FOR THE CATALYTIC CONVERSION OF A HYDROCARBON CHLORIDE INTO A CHLORINE-FREE HYDROCARBON SAID HYDROCARBON CHLORIDE BEING SELECTED FROM THE GROUP CONSISTING OF A SATURATED ALIPHATIC HYDROCARBON AN UNSATURATED ALIPHATIC HYDROCARBON A SATURATED CYCLOALIPHATIC HYDROCARBON AN UNSATURATED CYCLOALIPHATIC HYDROCARBON A SATURATED ALIPHATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE SATURATED ALIPHATIC RADICAL A SATURATED ALIPHATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE UNSATURATED ALIPHATIC RADICAL AN UNSATURATED ALIPHATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE SATURATED ALIPHATIC RADICAL, AN UNSATURATED HYDROCARBON SUBSTITUTED BY AT LEAST ONE SATURATED ALIPHATIC RADICAL AN UNSATURATED ALIPHATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE UNSATURATED ALIPHATIC RADICAL A SATURATED CYCLOALIPHATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE SATURATED ALIPHATIC RADICAL A SATURATED CYCLOALIPHATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE UBSATURATED ALIPHATIC RADICAL AN UNSATURATED CYCLOALIPHATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE SATURATED ALIPHATIC RADICAL AN UNSATURATED CYCLOALIPHATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE UNSATURATED ALIPHATIC RADICAL AN AROMATIC HYDROCARBON AN AROMATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE ALKYL RADICAL, AND AN AROMATIC HYDROCARBON SUBSTITUED BY AT LEAST ONE ALKENYL RADICAL AT LEAST ONE H ATOM OF SAID HYDROCARBON BEING REPLACED BY CHLORINE COMPRISING CONTACTING THE HYDROCARBON CHLORIDE IN THE GAS PHASE WITH HYDROGEN IN THE PRESENCE OF RHODIUM AS CATALYST AND AT A TEMPERATURE OF ABOUT 50* TO 500*C.
Claim 2
Dependent Claim
210 words
A PROCESS FOR THE CATALYTIC CONVERSION OF A HYDROCARBON CHLORIDE INTO A CHLORINE-FREE HYDROCARBON SAID HYDROCARBON CHLORIDE BEING SELECTED FROM THE GROUP CONSISTING OF A SATURATED ALIPHATIC HYDROCARBON AN UNSATURATED ALIPHATIC HYDROCARBON A SATURATED CYCLOALIPHATIC HYDROCARBON AN UNSATURATED CYCLOALIPHATIC HYDROCARBON A SATURATED ALIPHATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE SATURATED ALIPHATIC RADICAL A SATURATED ALIPHATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE UNSATURATED ALIPHATIC RADICAL AN UNSATURATED ALIPHATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE SATURATED ALIPHATIC RADICAL, AN UNSATURATED HYDROCARBON SUBSTITUTED BY AT LEAST ONE SATURATED ALIPHATIC RADICAL AN UNSATURATED ALIPHATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE UNSATURATED ALIPHATIC RADICAL A SATURATED CYCLOALIPHATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE SATURATED ALIPHATIC RADICAL A SATURATED CYCLOALIPHATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE UBSATURATED ALIPHATIC RADICAL AN UNSATURATED CYCLOALIPHATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE SATURATED ALIPHATIC RADICAL AN UNSATURATED CYCLOALIPHATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE UNSATURATED ALIPHATIC RADICAL AN AROMATIC HYDROCARBON AN AROMATIC HYDROCARBON SUBSTITUTED BY AT LEAST ONE ALKYL RADICAL, AND AN AROMATIC HYDROCARBON SUBSTITUED BY AT LEAST ONE ALKENYL RADICAL AT LEAST ONE H ATOM OF SAID HYDROCARBON BEING REPLACED BY CHLORINE COMPRISING CONTACTING THE HYDROCARBON CHLORIDE IN THE GAS PHASE WITH HYDROGEN IN THE PRESENCE OF RHODIUM AS CATALYST AND AT A TEMPERATURE OF ABOUT 50* TO 500*C.
Claim 3
Dependent Claim
24 words
The process according to claim 1, wherein the content of organically bound chlorine in the hydrocarbon chloride is about 10 to 90% by weight.
Claim 4
Dependent Claim
17 words
The process according to claim 1, wherein the hydrocarbon chloride contains 1 to about 30 C atoms.
Claim 5
Dependent Claim
12 words
The process according to claim 1, wherein the hydrocarbon chloride is 1,2-dichloropropane.
Claim 6
Dependent Claim
21 words
The process according to claim 1, wherein the catalyst comprises about 0.01 to 5% by weight of rhodium on a carrier.
Claim 7
Dependent Claim
50 words
The process according to claim 5, wherein the catalyst further comprises at least one metal selected from the group consisting of palladium, platinum, ruthenium, iridium, iron, cobalt, nickel, copper, gold, vanadium, chromium, molybdenum and tungsten, said metal being present in about 0.1 to 10 times the weight of the rhodium.
Claim 8
Dependent Claim
41 words
The process according to claim 5, wherein the catalyst further comprises at least one member selected from the group consisting of salts, hydroxides and carboxylates of alkali metal and alkaline earth metals and salts and oxides of aluminum, boron and titanium.
Claim 9
Dependent Claim
20 words
The process according to claim 5, wherein the carrier comprises aluminum oxide, silicic acid, aluminum silicate, spinel or titanium dioxide.
Claim 10
Dependent Claim
12 words
The process according to claim 5, wherein the carrier comprises active charcoal.
Claim 11
Dependent Claim
127 words
The process according to claim 7, wherein the hydrocarbon chloride is substantially anhydrous, the content of organically bound chlorine in the hydrocarbon chloride is about 10 to 90% by weight, about 2 to 5 atoms of hydrogen are supplied per atom of chlorine in the hydrocarbon chloride, the reaction is effected at a temperature of about 150* to 350*C in the absence of oxygen, the carrier comprises aluminum oxide, silicic acid, aluminum silicate, spinel, active charcoal or titanium dioxide, the catalyst further comprises at least one member selected from the group consisting of salts, hydroxides and carboxylates of alkali metal and alkaline earth metals and salts and oxides of aluminum, boron And titanium, and after separation of hydrogen chloride unreacted hydrogen is recycled at least in part.
Claim 12
Dependent Claim
12 words
The process according to claim 1, wherein the hydrocarbon chloride is dichloropropane.
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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) | 1978-06-30 | 1978-12-30 | 1979-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-30 | 1982-12-30 | 1983-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-30 | 1986-12-30 | 1987-07-01 | $7700.00 | Window Closed / Lapsed |