US2541044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic alkylation
Assignee: Houdry Process Corp
•
Filing: 1947-12-17
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Granted: 1951-02-13
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Expires: 1967-12-17
Abstract
No abstract record available.
Inventors
- 👤 James P Daugherty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:47
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C6/00; C07C6/08; C07C6/12; C07C6/126; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/901; Y10S585/902; Y10S585/909; Y10S585/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN AN ALKYLATION PROCESS WHICH COMPRISES FLOWING ALKYLATABLE HYDROCARBON MATERIAL AND ALKYL SUPPLYING HYDROCARBON MATERIAL REACTABLE THEREWITH INTO AN ALKYLATION ZONE CONTAINING A SOLID ADSORPTIVE ALKYLATION CATALYST, REACTING IN SAID ZONE SAID ALKYLATABLE HYDROCARBON MATERIAL AND SAID ALKYL SUPPLYING HYDROCARBON MATERIAL TO FORM ALKYLATED HYDROCARBON MATERIAL UNDER ALKYLATION CONDITIONS AT ELEVATED TEMPERATURE, AND REMOVING SAID ALKYLATED HYDROCARBON MATERIAL FROM SAID ZONE, THE ALKYLATION ACTIVITY OF SAID CATALYST DECREASING AS THE TIME ON STREAM CONTINUES, THE IMPROVEMENT WHICH COMPRISES PERIODICALLY INTERRUPTING THE FLOW OF ALKYL SUPPLYING HYDROCARBON MATERIAL TO SAID ZONE AT PREDETERMINED INTERVALS OF ON STREAM TIME, DURING THE PERIOD OF INTERRUPTED FLOW OF SAID ALKYL SUPPLY-
Claim 2
Dependent Claim
107 words
IN AN ALKYLATION PROCESS WHICH COMPRISES FLOWING ALKYLATABLE HYDROCARBON MATERIAL AND ALKYL SUPPLYING HYDROCARBON MATERIAL REACTABLE THEREWITH INTO AN ALKYLATION ZONE CONTAINING A SOLID ADSORPTIVE ALKYLATION CATALYST, REACTING IN SAID ZONE SAID ALKYLATABLE HYDROCARBON MATERIAL AND SAID ALKYL SUPPLYING HYDROCARBON MATERIAL TO FORM ALKYLATED HYDROCARBON MATERIAL UNDER ALKYLATION CONDITIONS AT ELEVATED TEMPERATURE, AND REMOVING SAID ALKYLATED HYDROCARBON MATERIAL FROM SAID ZONE, THE ALKYLATION ACTIVITY OF SAID CATALYST DECREASING AS THE TIME ON STREAM CONTINUES, THE IMPROVEMENT WHICH COMPRISES PERIODICALLY INTERRUPTING THE FLOW OF ALKYL SUPPLYING HYDROCARBON MATERIAL TO SAID ZONE AT PREDETERMINED INTERVALS OF ON STREAM TIME, DURING THE PERIOD OF INTERRUPTED FLOW OF SAID ALKYL SUPPLY-
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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) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |