Patent US2852582A successfully refreshed from Google Patents.
US2852582A
Expired / Lapsed
US
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Treatment of metal halide sludges
Assignee: Phillips Petroleum Co
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Filing: 1955-11-10
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Granted: 1958-09-16
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Expires: 1975-11-10
Abstract
No abstract record available.
Inventors
- 👤 Jr Percy S Stallings
- 👤 Joseph W Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:33
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; C; C07; C07C; C07C2/00; C07C2/54; C07C2/56; C07C2/58; C07C2/60; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2778; C07C5/2786; C07C5/2789; C07C2527/00; C07C2527/06; C07C2527/125; C07C2527/126; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
A PROCESS FOR TREATING A FRIEDEL-CRAFTS TYPE METAL HALIDE SLUDGE FORMED DURING THE CATALYST CONVERSION OF HYDROCARBON IN THE PRESENCE OF FRIEDEL-CRAFTS TYPE METAL HALIDE CATALYST WHICH COMPRISES: CONTACTING SAID SLUDGE IN FINELY DIVIDED LIQUID FORM IN FIRST PORTION OF A TREATING ZONE WITH HYDROLYZING AGENT IN AN AMOUNT SUFFICIENT TO HYDROLYZE NOT MORE THAN 70 PERCENT BY WEIGHT OF THE METAL HALIDE IN SAID SLUDGE TO PRODUCE HYDROGEN HALIDE AND A FINELY DIVIDED, FREE-FLOWING, SOLID RESIDUE; CONTACTING SAID RESIDUE IN A SECOND PORTION OF SAID TREATING ZONE WITH WATER IN AN AMOUNT SUFFICIENT TO SUBSTANTIALLY COMPLETE HYDROLYSIS OF THE METAL HALIDE IN SAID RESIDUE AND RECOVERING SUBSTANTIALLY ANHYDROUS HYDROGEN HALIDE FROM SAID TREATING ZONE, SAID HYDROLYZING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF FINELY DIVIDED WATER AND STEAM.
Claim 2
Dependent Claim
130 words
A PROCESS FOR TREATING A FRIEDEL-CRAFTS TYPE METAL HALIDE SLUDGE FORMED DURING THE CATALYST CONVERSION OF HYDROCARBON IN THE PRESENCE OF FRIEDEL-CRAFTS TYPE METAL HALIDE CATALYST WHICH COMPRISES: CONTACTING SAID SLUDGE IN FINELY DIVIDED LIQUID FORM IN FIRST PORTION OF A TREATING ZONE WITH HYDROLYZING AGENT IN AN AMOUNT SUFFICIENT TO HYDROLYZE NOT MORE THAN 70 PERCENT BY WEIGHT OF THE METAL HALIDE IN SAID SLUDGE TO PRODUCE HYDROGEN HALIDE AND A FINELY DIVIDED, FREE-FLOWING, SOLID RESIDUE; CONTACTING SAID RESIDUE IN A SECOND PORTION OF SAID TREATING ZONE WITH WATER IN AN AMOUNT SUFFICIENT TO SUBSTANTIALLY COMPLETE HYDROLYSIS OF THE METAL HALIDE IN SAID RESIDUE AND RECOVERING SUBSTANTIALLY ANHYDROUS HYDROGEN HALIDE FROM SAID TREATING ZONE, SAID HYDROLYZING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF FINELY DIVIDED WATER AND STEAM.
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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) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |