US3130016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for brine manufacture
Assignee: Pennwalt Corp
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Filing: 1961-05-09
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Granted: 1964-04-21
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Expires: 1981-05-09
Abstract
No abstract record available.
Inventors
- 👤 Jesse G Grier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:25
CPC Classifications
C; C01; C01D; C01D3/00; C01D3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
THE PROCESS OF INCREASING THE CONCENTRATION OF A DEPLETED NACL CRINE SOLUTION WHICH COMPRISES INTRODUCING SALT PARTICLES HAVING A SIZE RANGE OF ABOUT 14 TO ABOUT 60 U.S. SIEVE SIZE AND CONTAINING CALCIUM SULFATE AS AN IMPURITY INTO THE TOP OF A VERTICAL UNOBSTRUCTED COLUMN THROUGH WHICH IS FLOWING A BRINE SOLUTION AT A PH ABOVE ABOUT 3.5, SAID BRINE BEING INTRODUCED AT A CONCENTRATION BELOW SATURATION AND FLOWING THROUGH SAID COLUMN ABOVE A TRAP FOR UNDISSOLVED CASO4, THE LINEAR FLOW RATE OF SAID BRINE SOLUTION BEING BETWEEN ABOUT 0.1 AND 3 FEET PER MINUTE, SAID SALT PARTICLES BEING ALLOWED TO FALL FREELY THROUGH SAID BRINE SOLUTION UNTIL THEY ARE ESSENTIALLY COMPLETELY DISSOLVED AT A POINT ABOVE SAID CASO4 TRAP WHEREBY THE INSOLUBLE CASO4 IMPURITY COLLECTS IN SAID TRAP AND A CONCENTRATED BRINE SOLUTION LOW IN CALCIUM ION CONCENTRATION IS OBTAINED AS THE OUTPUT FROM SAID COLUMN.
Claim 2
Dependent Claim
147 words
THE PROCESS OF INCREASING THE CONCENTRATION OF A DEPLETED NACL CRINE SOLUTION WHICH COMPRISES INTRODUCING SALT PARTICLES HAVING A SIZE RANGE OF ABOUT 14 TO ABOUT 60 U.S. SIEVE SIZE AND CONTAINING CALCIUM SULFATE AS AN IMPURITY INTO THE TOP OF A VERTICAL UNOBSTRUCTED COLUMN THROUGH WHICH IS FLOWING A BRINE SOLUTION AT A PH ABOVE ABOUT 3.5, SAID BRINE BEING INTRODUCED AT A CONCENTRATION BELOW SATURATION AND FLOWING THROUGH SAID COLUMN ABOVE A TRAP FOR UNDISSOLVED CASO4, THE LINEAR FLOW RATE OF SAID BRINE SOLUTION BEING BETWEEN ABOUT 0.1 AND 3 FEET PER MINUTE, SAID SALT PARTICLES BEING ALLOWED TO FALL FREELY THROUGH SAID BRINE SOLUTION UNTIL THEY ARE ESSENTIALLY COMPLETELY DISSOLVED AT A POINT ABOVE SAID CASO4 TRAP WHEREBY THE INSOLUBLE CASO4 IMPURITY COLLECTS IN SAID TRAP AND A CONCENTRATED BRINE SOLUTION LOW IN CALCIUM ION CONCENTRATION IS OBTAINED AS THE OUTPUT FROM SAID COLUMN.
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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |