Patent US2787648A successfully refreshed from Google Patents.
US2787648A
Expired / Lapsed
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Alkylation of aromatic hydrocarbons
Assignee: MW Kellogg Co
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Filing: 1954-06-14
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Granted: 1957-04-02
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Expires: 1974-06-14
Abstract
No abstract record available.
Inventors
- 👤 Charles C King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:57
CPC Classifications
C; C07; C07C; C07C15/00; C07C15/02; C07C15/085; C07C2/00; C07C2/54; C07C2/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN A PROCESS FOR ALKYLATING AROMATIC HYDROCARBONS WITH OLEFIN HYDROCARBONS IN WHICH THE ALKYLATION REACTANTS ARE PASSED THROUGH A REACTION ZONE MAINTAINED UNDER CONDITIONS SUITABLE TO EFFECT SAID ALKYLATION REACTIONS AND THE REACTION ZONE EFFLUENT CONTAINING ALKYLATION POLYMER CONTAMINANTS IS PASXSED THROUGH A SEPARATION SYSTEM WHEREIN UNREACTED OLEFINS AND AROMATIC HYDROCARBONS CONTAINING SAID CONTAMINANT MATERIALS ARE SEPARATED FROM THE ALKYLATE AND ARE RECYLLED TO SAID RECTION ZONE, THE METHOD OF CONTROLLING THE CONCENTRATION OF CONTAMINANTS IN THE SYSTEM WHICH COMPRISES PASSING A MINOR PORTION OF ABOUT 1% OF THE TOTAL RECYLE AROMATIC HYDROCARBONS THROUGH A SEPARATION ZONE FOR THE REMOVAL OF SAID CONTAMINANTS BEFORE RETURINING SAID MONOR PORTION TO THE REACTION ZONE.
Claim 2
Dependent Claim
112 words
IN A PROCESS FOR ALKYLATING AROMATIC HYDROCARBONS WITH OLEFIN HYDROCARBONS IN WHICH THE ALKYLATION REACTANTS ARE PASSED THROUGH A REACTION ZONE MAINTAINED UNDER CONDITIONS SUITABLE TO EFFECT SAID ALKYLATION REACTIONS AND THE REACTION ZONE EFFLUENT CONTAINING ALKYLATION POLYMER CONTAMINANTS IS PASXSED THROUGH A SEPARATION SYSTEM WHEREIN UNREACTED OLEFINS AND AROMATIC HYDROCARBONS CONTAINING SAID CONTAMINANT MATERIALS ARE SEPARATED FROM THE ALKYLATE AND ARE RECYLLED TO SAID RECTION ZONE, THE METHOD OF CONTROLLING THE CONCENTRATION OF CONTAMINANTS IN THE SYSTEM WHICH COMPRISES PASSING A MINOR PORTION OF ABOUT 1% OF THE TOTAL RECYLE AROMATIC HYDROCARBONS THROUGH A SEPARATION ZONE FOR THE REMOVAL OF SAID CONTAMINANTS BEFORE RETURINING SAID MONOR PORTION TO THE REACTION ZONE.
References Cited (Backward Citations)
US2388007A
Cited
US2519099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |