US3210431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxychlorination of ethylene
Assignee: Shell USA Inc
•
Filing: 1961-04-24
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Granted: 1965-10-05
•
Expires: 1981-04-24
Abstract
No abstract record available.
Inventors
- 👤 Willem F Engel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:08
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/15; C07C17/152; C07C17/156; B; B01; B01J; B01J27/00; B01J27/06; C07C17/013; C07C17/02; C07C17/10; C07C17/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
89 words
THE ETHYLENE CHLORINATION PROCESS CONSISTING ESSENTIALLY OF CONTACTING ETHYLENE IN VAPOR PHASE, AT A TEMPERATURE OF FROM ABOUT 100 TO ABOUT 300*C., WITH A COMPOSITION CONSISTING ESSENTIALLY OF (A) CUPRIC CHLORIDE IN COMBINATION WITH (B) DIDYMIUM CHLORIDE AND (C) AN ALKALI METAL CHLORIDE, SAID COMPOSITION CONTAINING A WEIGHT RATIO OF COPPER TO DIDYMIUM, CALCULATED ON THE BASIS OF UNCOMBINED METALS, IN THE RANGE OF FROM ABOUT 3:1 TO ABOUT 1:3, AND AN ATOMIC RATIO OF ALKALI METAL TO COPPER IN THE RANGE OF FROM ABOUT 0.3:1 TO ABOUT 3:1.
Claim 2
Dependent Claim
89 words
THE ETHYLENE CHLORINATION PROCESS CONSISTING ESSENTIALLY OF CONTACTING ETHYLENE IN VAPOR PHASE, AT A TEMPERATURE OF FROM ABOUT 100 TO ABOUT 300*C., WITH A COMPOSITION CONSISTING ESSENTIALLY OF (A) CUPRIC CHLORIDE IN COMBINATION WITH (B) DIDYMIUM CHLORIDE AND (C) AN ALKALI METAL CHLORIDE, SAID COMPOSITION CONTAINING A WEIGHT RATIO OF COPPER TO DIDYMIUM, CALCULATED ON THE BASIS OF UNCOMBINED METALS, IN THE RANGE OF FROM ABOUT 3:1 TO ABOUT 1:3, AND AN ATOMIC RATIO OF ALKALI METAL TO COPPER IN THE RANGE OF FROM ABOUT 0.3:1 TO ABOUT 3:1.
Claim 3
Dependent Claim
107 words
THE ETHYLENE CHLORINATION PROCESS CONSISTING ESSENTIALLY OF CONTACTING ETHYLENE IN ADMIXTURE WITH HYDROGEN CHLORIDE AND AN OXYGEN-CONTAINING GAS, IN VAPOR PHASE, AT A TEMPERATURE OF FROM ABOUT 100 TO ABOUT 300* C., WITH A COMBINATION CATALYST CONSISTING ESSENTIALLY OF (A) A COPPER CHLORIDE IN COMBINATION WITH (B) DIDYMIUM CHLORIDE, (C) AN ALKALI METAL CHLORIDE, AND (D) A SILICA GEL SUPPORT, SAID COMBINATION CATALYST CONTAINING A WEIGHT RATIO OF COPPER TO DIDYMIUM, CALCULATED ON THE BASIS OF UNCOMBINED METALS, IN THE RANGE OF FROM ABOUT 3:1 TO ABOUT 1:3, AND AN ATOMIC RATIO OF ALKALI METAL TO COPPER IN THE RANGE OF FROM ABOUT 0.3:1 TO ABOUT 3:1.
Claim 4
Dependent Claim
107 words
THE ETHYLENE CHLORINATION PROCESS CONSISTING ESSENTIALLY OF CONTACTING ETHYLENE IN ADMIXTURE WITH HYDROGEN CHLORIDE AND AN OXYGEN-CONTAINING GAS, IN VAPOR PHASE, AT A TEMPERATURE OF FROM ABOUT 100 TO ABOUT 300* C., WITH A COMBINATION CATALYST CONSISTING ESSENTIALLY OF (A) A COPPER CHLORIDE IN COMBINATION WITH (B) DIDYMIUM CHLORIDE, (C) AN ALKALI METAL CHLORIDE, AND (D) A SILICA GEL SUPPORT, SAID COMBINATION CATALYST CONTAINING A WEIGHT RATIO OF COPPER TO DIDYMIUM, CALCULATED ON THE BASIS OF UNCOMBINED METALS, IN THE RANGE OF FROM ABOUT 3:1 TO ABOUT 1:3, AND AN ATOMIC RATIO OF ALKALI METAL TO COPPER IN THE RANGE OF FROM ABOUT 0.3:1 TO ABOUT 3:1.
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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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |