US3341453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inhibiting salt deposition
Assignee: Calgon Corp
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Filing: 1964-06-10
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Granted: 1967-09-12
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Expires: 1984-06-10
Abstract
No abstract record available.
Inventors
- 👤 Paul H Ralston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:46
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/12; C03C3/16; B; B01; B01J; B01J19/00; B01J19/06; C01; C01D; C01D3/00; C01D3/04; C09; C09K; C09K8/00; C09K8/52; C09K8/528; Y; Y10; Y10S; Y10S507/00; Y10S507/927
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
96 words
METHOD OF TREATING BRINE TO INHIBIT THE DEPOSITION THEREFROM OF SALT UNDER CONDITIONS WHICH WOULD RENDER SAID BRINE SUPERSATURATED COMPRISING ADDING TO SAID BRINE PRIOR TO SUBJECTION TO SUCH CONDITIONS A SMALL AMOUNT OF GLASSY PHOSPHATE COMPOSITION ANALYTICALLY CONSISTING ESSENTIALLY OF (A) ABOUT 35 TO ABOUT 50 MOLE PERCENT P2O5, (B) ABOUT 5.0 TO ABOUT 65 MOLE PERCENT OF AN OXIDE SELECTED FROM THE GROUP CONSISTING OF CDO, PHO, AND MIXTURES THEREOF, AND (C) ABOUT 0 TO ABOUT 60 MOLE PERCENT OF AN OXIDE SELECTED FROM THE CONSISTING OF NA2O, CAO, ZNO, MGO, AND MIXTURES THEREOF.
Claim 2
Dependent Claim
96 words
METHOD OF TREATING BRINE TO INHIBIT THE DEPOSITION THEREFROM OF SALT UNDER CONDITIONS WHICH WOULD RENDER SAID BRINE SUPERSATURATED COMPRISING ADDING TO SAID BRINE PRIOR TO SUBJECTION TO SUCH CONDITIONS A SMALL AMOUNT OF GLASSY PHOSPHATE COMPOSITION ANALYTICALLY CONSISTING ESSENTIALLY OF (A) ABOUT 35 TO ABOUT 50 MOLE PERCENT P2O5, (B) ABOUT 5.0 TO ABOUT 65 MOLE PERCENT OF AN OXIDE SELECTED FROM THE GROUP CONSISTING OF CDO, PHO, AND MIXTURES THEREOF, AND (C) ABOUT 0 TO ABOUT 60 MOLE PERCENT OF AN OXIDE SELECTED FROM THE CONSISTING OF NA2O, CAO, ZNO, MGO, AND MIXTURES THEREOF.
Claim 3
Dependent Claim
100 words
METHOD OF TREATING OILFIELD BRINE COPRODUCED WITH OIL TO INHIBIT THE DEPOSITION THEREFROM OF SALT DURING A PERIOD OF RECEDING TEMPERATURE COMPRISING ADDING TO SAID BRINE PRIOR TO SAID PERIOD OF RECEDING TEMPERATURE A SMALL AMOUNT OF A PHOSPHATE GLASS ANALYTICALLY CONSISTING ESSENTIALLY OF (A) ABOUT 35 TO ABOUT 50 MOLE PERCENT P2O5, (B) ABOUT 5.0 TO ABOUT 65 MOLE PERCENT OF AN OXIDE SELECTED FROM THE GROUP CONSISTING OF CDO, PBO, AND MIXTURES THEREOF, AND (C) ABOUT 0 TO ABOUT 60 MOLE PERCENT OF AN OXIDE SELECTED FROM THE GROUP CONSISTING OF NA2O, CAO, ZNO, MGO, AND MIXTURES THEREOF.
Claim 4
Dependent Claim
100 words
METHOD OF TREATING OILFIELD BRINE COPRODUCED WITH OIL TO INHIBIT THE DEPOSITION THEREFROM OF SALT DURING A PERIOD OF RECEDING TEMPERATURE COMPRISING ADDING TO SAID BRINE PRIOR TO SAID PERIOD OF RECEDING TEMPERATURE A SMALL AMOUNT OF A PHOSPHATE GLASS ANALYTICALLY CONSISTING ESSENTIALLY OF (A) ABOUT 35 TO ABOUT 50 MOLE PERCENT P2O5, (B) ABOUT 5.0 TO ABOUT 65 MOLE PERCENT OF AN OXIDE SELECTED FROM THE GROUP CONSISTING OF CDO, PBO, AND MIXTURES THEREOF, AND (C) ABOUT 0 TO ABOUT 60 MOLE PERCENT OF AN OXIDE SELECTED FROM THE GROUP CONSISTING OF NA2O, CAO, ZNO, MGO, AND MIXTURES THEREOF.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |