US3959367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of halo-olefins
Assignee: Dow Chemical Co
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Filing: 1971-03-12
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Granted: 1976-05-25
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Expires: 1991-03-12
Abstract
Abstract Process for the non-catalytic liquid phase oxidation of halo-olefins, having 2 to 7 carbon atoms, by O 2 at elevated temperatures and pressures to produce oxygenated organic products having the same number of carbon atoms as the starting material.
Inventors
- 👤 Gaines C. Jeffrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:27
CPC Classifications
C; C07; C07D; C07D301/00; C07D301/02; C07D301/03; C07D301/04; C07D301/06; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C51/00; C07C51/58
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
97 words
A process for the liquid phase oxidation of polyhaloolefins having from 2 to 7 carbon atoms to obtain oxidation products having the same number of carbon atoms as the starting material, said process comprising heating the polyhalo-olefin in admixture with oxygen at temperatures of from about 70°C to about 300°C and O 2 pressures of from about 100 to 1200 p.s.i.g. in the absence of an added catalyst, said process being carried out in two stages in two reactors connected in series wherein the first reactor has a volume of about twice that of the second reactor.
Claim 2
Dependent Claim
97 words
A process for the liquid phase oxidation of polyhaloolefins having from 2 to 7 carbon atoms to obtain oxidation products having the same number of carbon atoms as the starting material, said process comprising heating the polyhalo-olefin in admixture with oxygen at temperatures of from about 70°C to about 300°C and O 2 pressures of from about 100 to 1200 p.s.i.g. in the absence of an added catalyst, said process being carried out in two stages in two reactors connected in series wherein the first reactor has a volume of about twice that of the second reactor.
Claim 3
Dependent Claim
39 words
Process of claim 1 wherein the temperature in the first reactor is in the range of from about 80°C to about 110°C and the temperature in the second reactor is in the range of about 225°C to about 275°C.
Claim 4
Dependent Claim
74 words
A process for the liquid phase oxidation of a mixture of two halo-olefins having from 2 to 7 carbon atoms to obtain oxidation products having the same number of carbon atoms as the starting material, said process comprising heating the mixture of halo-olefins in admixture with oxygen at temperatures of from about 70°C to about 300°C and O 2 pressures of from about 100 to 1200 p.s.i.g. in the absence of an added catalyst.
Claim 5
Dependent Claim
74 words
A process for the liquid phase oxidation of a mixture of two halo-olefins having from 2 to 7 carbon atoms to obtain oxidation products having the same number of carbon atoms as the starting material, said process comprising heating the mixture of halo-olefins in admixture with oxygen at temperatures of from about 70°C to about 300°C and O 2 pressures of from about 100 to 1200 p.s.i.g. in the absence of an added catalyst.
Claim 6
Dependent Claim
59 words
A process for the liquid phase oxidation of a mixture of tetrachloroethylene and 1,1-dichloroethylene to obtain oxidation products containing two carbon atoms, said process comprising heating the mixture in admixture with oxygen at temperatures of from about 70°C to about 300°C and O 2 pressures of from about 100 to 1200 p.s.i.g. in the absence of an added catalyst.
Claim 7
Dependent Claim
59 words
A process for the liquid phase oxidation of a mixture of tetrachloroethylene and 1,1-dichloroethylene to obtain oxidation products containing two carbon atoms, said process comprising heating the mixture in admixture with oxygen at temperatures of from about 70°C to about 300°C and O 2 pressures of from about 100 to 1200 p.s.i.g. in the absence of an added catalyst.
Claim 8
Dependent Claim
88 words
A process for the liquid phase oxidation of tetrachloroethylene to obtain trichloroacetyl chloride comprising heating, in the absence of an added catalyst, a mixture of tetrachloroethylene and oxygen in a first reactor at a temperature in the range of about 80°C to about 110°C at a pressure in the range of about 500 to about 1000 p.s.i.g., then further heating the mixture in a second reactor at a temperature in the range of about 225°C to about 275°C at a pressure of about 500 to about 1000 p.s.i.g.
Claim 9
Dependent Claim
88 words
A process for the liquid phase oxidation of tetrachloroethylene to obtain trichloroacetyl chloride comprising heating, in the absence of an added catalyst, a mixture of tetrachloroethylene and oxygen in a first reactor at a temperature in the range of about 80°C to about 110°C at a pressure in the range of about 500 to about 1000 p.s.i.g., then further heating the mixture in a second reactor at a temperature in the range of about 225°C to about 275°C at a pressure of about 500 to about 1000 p.s.i.g.
References Cited (Backward Citations)
US1976265A
Cited
US3509210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-25 | 1979-11-24 | 1980-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-25 | 1983-11-24 | 1984-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-25 | 1987-11-24 | 1988-05-25 | $7700.00 | Window Closed / Lapsed |