US3330875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decobalting hydroxylated polymers with concentrated phosphoric acid
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1963-12-19
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Granted: 1967-07-11
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Expires: 1983-12-19
Abstract
No abstract record available.
Inventors
- 👤 Cull Neville Leverne
- 👤 Mertzweiller Joseph Kern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:27
CPC Classifications
C; C08; C08C; C08C19/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
115 words
IN THE PROCESS WHEREIN HYDROCARBON POLYMERS HAVING AT LEAST ONE ETHYLENIC CARBON-TO-CARBON BOND IN SAID POLYMER, CARBON MONOXIDE AND HYDROGEN ARE CONTACTED IN A TWO-STAGE OXONATION-HYDROGENATION ZONE AT ELEVATED TEMPERATURES AND PRESSURES WITH A COBALT HYDROFORMYLATION CATALYST UNDER CONDITIONS TO PRODUCE SUBSTANTIALLY SATURATED-HYDROXYLATED POLYMERS, AND WHEREIN SAID HYDROXYLATED POLYMERS CONTINING DISSOLVED THEREIN COBALT COMPOUNDS ARE FURTHER TREATED TO REMOVE SAID COBALT COMPOUNDS IN A CATALYST REMOVAL ZONE, THE IMPROVEMENT WHICH COMPRISES TREATING SAID HYDROXYLATED POLYMER PRODUCT CONTAINING SAID COBALT COMPOUNDS IN SOLUTION WITH A MOLAR EXCESS OF CONCENTRATED PHOSPHORIC ACID IN SAID CATALYST REMOVAL ZONE TO PRECIPITATE COBALT-COMPRISING COMPOUNDS, REMOVING SAID COBALT-COMPRISING COMPOUNDS FROM SAID CATALYST REMOVAL ZONE AND RECOVERING A SUBSTANTIALLY DECOBALTED HYDROXYLATED POLYMER
Claim 2
Dependent Claim
115 words
IN THE PROCESS WHEREIN HYDROCARBON POLYMERS HAVING AT LEAST ONE ETHYLENIC CARBON-TO-CARBON BOND IN SAID POLYMER, CARBON MONOXIDE AND HYDROGEN ARE CONTACTED IN A TWO-STAGE OXONATION-HYDROGENATION ZONE AT ELEVATED TEMPERATURES AND PRESSURES WITH A COBALT HYDROFORMYLATION CATALYST UNDER CONDITIONS TO PRODUCE SUBSTANTIALLY SATURATED-HYDROXYLATED POLYMERS, AND WHEREIN SAID HYDROXYLATED POLYMERS CONTINING DISSOLVED THEREIN COBALT COMPOUNDS ARE FURTHER TREATED TO REMOVE SAID COBALT COMPOUNDS IN A CATALYST REMOVAL ZONE, THE IMPROVEMENT WHICH COMPRISES TREATING SAID HYDROXYLATED POLYMER PRODUCT CONTAINING SAID COBALT COMPOUNDS IN SOLUTION WITH A MOLAR EXCESS OF CONCENTRATED PHOSPHORIC ACID IN SAID CATALYST REMOVAL ZONE TO PRECIPITATE COBALT-COMPRISING COMPOUNDS, REMOVING SAID COBALT-COMPRISING COMPOUNDS FROM SAID CATALYST REMOVAL ZONE AND RECOVERING A SUBSTANTIALLY DECOBALTED HYDROXYLATED POLYMER
Claim 3
Dependent Claim
64 words
AN IMPROVED PROCESS FOR REMOVING COBALT FROM A HYDROXYLATED POLYMER PRODUCT OBTAINED BY REACTING A HYDROCARBON POLYMER HAVING AT LEAST ONE ETHYLENIC CARBBON-TO-CARBON BOND WITH CO AND H2 IN THE PRESENCE OF A COBALT HYDROFORMYLATION CATALYST IN A TWO-STAGE PROCESS IN WHICH PROCESS CONDITIONS IN THE FIRST STAGE ARE SET TO MAXIMIZE OXONATION AND MINIMIZE HYDROGENATION OF UNISATURATED CARBON-TO-CARBON LINKAGES, FOLLOWED BY A SECOND
Claim 4
Dependent Claim
64 words
AN IMPROVED PROCESS FOR REMOVING COBALT FROM A HYDROXYLATED POLYMER PRODUCT OBTAINED BY REACTING A HYDROCARBON POLYMER HAVING AT LEAST ONE ETHYLENIC CARBBON-TO-CARBON BOND WITH CO AND H2 IN THE PRESENCE OF A COBALT HYDROFORMYLATION CATALYST IN A TWO-STAGE PROCESS IN WHICH PROCESS CONDITIONS IN THE FIRST STAGE ARE SET TO MAXIMIZE OXONATION AND MINIMIZE HYDROGENATION OF UNISATURATED CARBON-TO-CARBON LINKAGES, FOLLOWED BY A SECOND
References Cited (Backward Citations)
US3232848A
Cited
US3234146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |