US3218121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of ammonium perchlorate
Assignee: Hooker Chemical Corp
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Filing: 1963-07-05
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Granted: 1965-11-16
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Expires: 1983-07-05
Abstract
No abstract record available.
Inventors
- 👤 Lewis E Tufts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:40
CPC Classifications
C; C01; C01B; C01B11/00; C01B11/16; C01B11/18; C01B11/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
A PROCESS FOR PRODUCING AMMONIUM PERCHLORATE COMPRISING REACTING, INA AN AQUEOUS MEDIUM, A METAL PERCHLORATE SELECTED FROM THE GROUP CONSISTING OF SODIUM PERCHLORATE, LITHIUM PERCHLORATE, CALCIUM PERCHLORATE, STRONTIUM PERCHLORATE AND BARIUM PERCHLORATE WITH AN AMMONIUM COMPOUND HAVING AN ANION SELECTED FROM THE GROUP CONSISTING OF BICARBONATE, CARBONATE AND SESQUICARBONATE BY IMPOSING A CARBON DIOXIDE PARTIAL PRESSURE ON THE AQUEOUS MEDIUM UP TO ABOUT 20 ATMOSPHERES ABSOLUTE PRESSURE WHILE MAINTAINING AND CORRELATING THE TEMPERATURE OF THE AQUEOUS MEDIUM WITHIN THE RANGE OF ABOUT 10 TO 110 DEGREES CENTIGRADE AND ABOVE THE PRECIPITATION POINT OF AMMONIUM PERCHLORATE TO EHREBY PRECIPITATE THE METAL ION OF SAID METAL PERCHLORATE AS THE METAL SALT OF AN ANION OF SAID AMMONIUM COMPOUND, SEPARATING SAID METAL SALT FROM THE RESULTING MOTHER LIQUOR AND THEN CHANGING AT LEST ONE OF THE PARAMETERS OF TEMPERATURE, CONCENTRATION OF AMMONIUM ION, CONCENTRATION OF PERCHLORATE ION AND WATER CONTENT OF SAID RESULTING MOTHER LIQUOR TO PRECIPITATE AMMONIUM PERCHLORATE THEREFROM.
Claim 2
Dependent Claim
157 words
A PROCESS FOR PRODUCING AMMONIUM PERCHLORATE COMPRISING REACTING, INA AN AQUEOUS MEDIUM, A METAL PERCHLORATE SELECTED FROM THE GROUP CONSISTING OF SODIUM PERCHLORATE, LITHIUM PERCHLORATE, CALCIUM PERCHLORATE, STRONTIUM PERCHLORATE AND BARIUM PERCHLORATE WITH AN AMMONIUM COMPOUND HAVING AN ANION SELECTED FROM THE GROUP CONSISTING OF BICARBONATE, CARBONATE AND SESQUICARBONATE BY IMPOSING A CARBON DIOXIDE PARTIAL PRESSURE ON THE AQUEOUS MEDIUM UP TO ABOUT 20 ATMOSPHERES ABSOLUTE PRESSURE WHILE MAINTAINING AND CORRELATING THE TEMPERATURE OF THE AQUEOUS MEDIUM WITHIN THE RANGE OF ABOUT 10 TO 110 DEGREES CENTIGRADE AND ABOVE THE PRECIPITATION POINT OF AMMONIUM PERCHLORATE TO EHREBY PRECIPITATE THE METAL ION OF SAID METAL PERCHLORATE AS THE METAL SALT OF AN ANION OF SAID AMMONIUM COMPOUND, SEPARATING SAID METAL SALT FROM THE RESULTING MOTHER LIQUOR AND THEN CHANGING AT LEST ONE OF THE PARAMETERS OF TEMPERATURE, CONCENTRATION OF AMMONIUM ION, CONCENTRATION OF PERCHLORATE ION AND WATER CONTENT OF SAID RESULTING MOTHER LIQUOR TO PRECIPITATE AMMONIUM PERCHLORATE THEREFROM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |