US3783125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sweetening liquid hydrocarbons with a calcined heavy metal exchanged zeolite
Assignee: Howe Baker Engineers LLC
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Filing: 1972-09-21
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Granted: 1974-01-01
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Expires: 1992-09-21
Abstract
Abstract 1. A LIQUID HYDROCARBON CONTAINING ORGANIC MERCAPTANS IS CONTACTED WITH A HEAVY METAL EXCHANGED ALUMINOSILICATE ZEOLITE CONTAINING FROM 5 TO 20% BY WEIGHT OF COPPER, CHROMIUM, TIN OR MIXTURES THEREOF TO CONVERT THE MERCAPTANS TO DISULFIDES. THE METAL EXCHANGE ZEOLITE IS PREPARED FROM A DILUTE SOLUTION OF THE METAL SALT, RINSED, DRIED AT 80-150*C. FOR 2-6 HOURS, HEATED TO 500*C. FOR 4-8 HOURS, CALCINED AT 500-700*C. FOR 6-12 HOURS AND THEN COOLED OVER A PERIOD OF 3-6 HOURS.
Inventors
- 👤 J Ondrey
- 👤 M Basila
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:13
CPC Classifications
C; C10; C10G; C10G17/00; C10G17/095; B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186; B01J29/00; B01J29/04; B01J29/06; B01J29/061; B01J37/00; B01J37/08; C10G25/00; C10G25/02; C10G25/03; C10G25/05; C10G27/00; C10G27/04; C10G29/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A LIQUID HYDROCARBON CONTAINING ORGANIC MERCAPTANS IS CONTACTED WITH A HEAVY METAL EXCHANGED ALUMINOSILICATE ZEOLITE CONTAINING FROM 5 TO 20% BY WEIGHT OF COPPER, CHROMIUM, TIN OR MIXTURES THEREOF TO CONVERT THE MERCAPTANS TO DISULFIDES. THE METAL EXCHANGE ZEOLITE IS PREPARED FROM A DILUTE SOLUTION OF THE METAL SALT, RINSED, DRIED AT 80-150*C. FOR 2-6 HOURS, HEATED TO 500*C. FOR 4-8 HOURS, CALCINED AT 500-700*C. FOR 6-12 HOURS AND THEN COOLED OVER A PERIOD OF 3-6 HOURS.
Claim 2
Dependent Claim
77 words
A LIQUID HYDROCARBON CONTAINING ORGANIC MERCAPTANS IS CONTACTED WITH A HEAVY METAL EXCHANGED ALUMINOSILICATE ZEOLITE CONTAINING FROM 5 TO 20% BY WEIGHT OF COPPER, CHROMIUM, TIN OR MIXTURES THEREOF TO CONVERT THE MERCAPTANS TO DISULFIDES. THE METAL EXCHANGE ZEOLITE IS PREPARED FROM A DILUTE SOLUTION OF THE METAL SALT, RINSED, DRIED AT 80-150*C. FOR 2-6 HOURS, HEATED TO 500*C. FOR 4-8 HOURS, CALCINED AT 500-700*C. FOR 6-12 HOURS AND THEN COOLED OVER A PERIOD OF 3-6 HOURS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |