Patent US3058803A successfully refreshed from Google Patents.
US3058803A
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US
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Waste recovery process
Assignee: Hooker Chemical Corp
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Filing: 1960-03-15
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Granted: 1962-10-16
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Expires: 1980-03-15
Abstract
No abstract record available.
Inventors
- 👤 Jr John H Hinkle
- 👤 Everett J Weaver
- 👤 Lynnval M Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:50
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/08; C01B33/10; C01B33/103; C01B17/00; C01B17/69; C01B17/74; C01B7/00; C01B7/19; C01B7/191
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
PROCESS FOR RECOVERING GASEOUS FLUORINE MATERIALS AND GASEOUS SULPHUR MATERIALS FROM WASTE GAS MIXTURES OBTAINED FROM ACIDULATING AND/OR CALCINATION OF PHOSPHATE MINERALS COMPRISING THE FOLLOWING STEPS: (1) SCRUBBING A GAS MIXTURE CONTAINING GASEOUS FLUORINE MATERIAL AND GASEOUS SULPHUR MATERIALS WITH WATER TO DISSOLVE SAID FLUORINE MATERIALS THEREFROM AND WITHDRAWING THE SCRUBBING WATER; AND (2) SEPARATING THE DISSOLVE FLUORINE MATERIALS FROM THE WATER OF SCRUBBING STEP (1) BY (3) SUBSEQUENTLY CONVERTING THE FLUORINE MATERIALS TO A FORM INSOLUBLE IN SAID WATER; AND (4) FLOWING THE GAS MIXTURE WHICH HAS BEEN SCRUBBED IN SCRUBBING STEP (1) IN A NON-RECIRCULATED CONTINUOUS STREAM THROUGH A UNIT FOR CONVERTING ALL SULPHUR
Claim 2
Dependent Claim
106 words
PROCESS FOR RECOVERING GASEOUS FLUORINE MATERIALS AND GASEOUS SULPHUR MATERIALS FROM WASTE GAS MIXTURES OBTAINED FROM ACIDULATING AND/OR CALCINATION OF PHOSPHATE MINERALS COMPRISING THE FOLLOWING STEPS: (1) SCRUBBING A GAS MIXTURE CONTAINING GASEOUS FLUORINE MATERIAL AND GASEOUS SULPHUR MATERIALS WITH WATER TO DISSOLVE SAID FLUORINE MATERIALS THEREFROM AND WITHDRAWING THE SCRUBBING WATER; AND (2) SEPARATING THE DISSOLVE FLUORINE MATERIALS FROM THE WATER OF SCRUBBING STEP (1) BY (3) SUBSEQUENTLY CONVERTING THE FLUORINE MATERIALS TO A FORM INSOLUBLE IN SAID WATER; AND (4) FLOWING THE GAS MIXTURE WHICH HAS BEEN SCRUBBED IN SCRUBBING STEP (1) IN A NON-RECIRCULATED CONTINUOUS STREAM THROUGH A UNIT FOR CONVERTING ALL SULPHUR
References Cited (Backward Citations)
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US1896287A
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US2163371A
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US2354177A
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US2447359A
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US2655431A
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US2813000A
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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) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |