Patent US3051658A successfully refreshed from Google Patents.
US3051658A
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Process of decreasing the salt content of an acidic silica hydro-organosol
Assignee: Monsanto Chemicals Ltd
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Filing: 1958-09-19
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Granted: 1962-08-28
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Expires: 1978-09-19
Abstract
No abstract record available.
Inventors
- 👤 Wilson H Power
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:57
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/14; C01B33/145; C01B33/157; C01B33/158; C01B33/1585
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A PROCESS OF DECREASING THE SALT CONTENT OF AN ACIDIC SILICA HYDRO-ORGANOSOL CONTAINING SALTS WHICH COMPRISES CONTACTING AT A TEMPERATURE BELOW 30*C, AN ACIDIC SILICA HYDRO-ORGANOSOL CONTAINING WATER, FROM ABOUT 5 TO 12% BY WEIGHT OF SILICA AS SILICA ACID, FROM ABOUT 25 TO 60% BY WEIGHT OF A SUBSTANTIALLY NEUTRAL WATER-MISCIBLE ORGANIC LIWUID CONSISTING OF CARBON, HYDROGEN AND OXYGEN ATOMS, AT LEAST 0.1% BY WEIGHT OF A SALT OF A MINERAL ACID AND AN ALKALI SILICATE AND A MINERAL ACID IN AN AMOUNT SUFFICIENT TO PROVIDE A PH OF 1.8 TO 45, WITH THE HYDROGEN FORM OF A WATER-INSOLUBLE STRONG CATION-EXCHANGE SULFONATED POLYMERIZATE AND THE BASE FORM OF A WATER-INSOLUBLE WEAK ANION-EXCHANGE MATERIAL CONTAINING A PLURALITY OF SALT-FOMING NITROGEN ATOMS, UNTIL THE HYDROORGANOSOL CONTAINS LESS THAN 0.025% BY WEIGHT OF SAID SALT, SAID HYDRO-ORGANOSOL BEING REMOVED FROM CONTACT WITH SAID ANION-EXCHANGE MATERIAL BEFORE BEFORE THE PH OF THE SOL EXCEEDS 4,5.
Claim 2
Dependent Claim
152 words
A PROCESS OF DECREASING THE SALT CONTENT OF AN ACIDIC SILICA HYDRO-ORGANOSOL CONTAINING SALTS WHICH COMPRISES CONTACTING AT A TEMPERATURE BELOW 30*C, AN ACIDIC SILICA HYDRO-ORGANOSOL CONTAINING WATER, FROM ABOUT 5 TO 12% BY WEIGHT OF SILICA AS SILICA ACID, FROM ABOUT 25 TO 60% BY WEIGHT OF A SUBSTANTIALLY NEUTRAL WATER-MISCIBLE ORGANIC LIWUID CONSISTING OF CARBON, HYDROGEN AND OXYGEN ATOMS, AT LEAST 0.1% BY WEIGHT OF A SALT OF A MINERAL ACID AND AN ALKALI SILICATE AND A MINERAL ACID IN AN AMOUNT SUFFICIENT TO PROVIDE A PH OF 1.8 TO 45, WITH THE HYDROGEN FORM OF A WATER-INSOLUBLE STRONG CATION-EXCHANGE SULFONATED POLYMERIZATE AND THE BASE FORM OF A WATER-INSOLUBLE WEAK ANION-EXCHANGE MATERIAL CONTAINING A PLURALITY OF SALT-FOMING NITROGEN ATOMS, UNTIL THE HYDROORGANOSOL CONTAINS LESS THAN 0.025% BY WEIGHT OF SAID SALT, SAID HYDRO-ORGANOSOL BEING REMOVED FROM CONTACT WITH SAID ANION-EXCHANGE MATERIAL BEFORE BEFORE THE PH OF THE SOL EXCEEDS 4,5.
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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |