US3201197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of hydrogen clays
Assignee: Union Oil Company of California
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Filing: 1962-06-25
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Granted: 1965-08-17
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Expires: 1982-06-25
Abstract
No abstract record available.
Inventors
- 👤 William E Showalter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:26
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/131; B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
THE PREPARATION OF A HYDROGEN CLAY FROM A CLAY HAVING ITS ION-EXCHANGE SITES OCCUPIED BY ALKALI METAL AND ALKALINE EARTH METAL CATIONS THAT COMPRISES: (A) CONTACTING SAID CLAY WITH A LIQUID MEDIUM COMPRISING A MINERAL ACID, AN ORGANIC SOLVENT AND LESS THAN 25 PERCENT WATER; SAID MINERAL ACID BEING SELECTED FROM THE CLASS CONSISTING OF HYDRO-HALOGEN ACIDS, SULFURIC ACID, NITRIC ACID AND MIXTURES THEREOF AND COMPRISING BETWEEN ABOUT 0.01 AND 4 VOLUMES PER VOLUME OF SAID ORGANIC SOLVENT; SAID ORGANIC SOLVENT BEING AN ORGANIC LIQUID IN WHICH THE ALKALI METAL AND ALKALINE EARTH METAL SALTS OF SAID MINERAL ACID ARE SOLUBLE; (B) THE AMOUNT OF SAID LIQUID REACTION MEDIUM SO CONTACTED WITH SAID CLAY BEING SUFFICIENT TO PROVIDE BETWEEN ABOUT 1 AND 10 EQUIVALENT WEIGHTS OF SAID ACID PER EQUIVALENT BASE EXCHANGE-CAPACITY OF SAID CLAY; AND (C) THEREAFTER SEPARATING SAID REACTION MEDIUM AS A LIQUID FROM SAID CLAY TO REMOVE SAID ALKALI METAL AND ALKALINE EARTH METAL CATIONS FROM SAID CLAY AND TO PREPARE SAID HYDROGEN CLAY.
Claim 2
Dependent Claim
167 words
THE PREPARATION OF A HYDROGEN CLAY FROM A CLAY HAVING ITS ION-EXCHANGE SITES OCCUPIED BY ALKALI METAL AND ALKALINE EARTH METAL CATIONS THAT COMPRISES: (A) CONTACTING SAID CLAY WITH A LIQUID MEDIUM COMPRISING A MINERAL ACID, AN ORGANIC SOLVENT AND LESS THAN 25 PERCENT WATER; SAID MINERAL ACID BEING SELECTED FROM THE CLASS CONSISTING OF HYDRO-HALOGEN ACIDS, SULFURIC ACID, NITRIC ACID AND MIXTURES THEREOF AND COMPRISING BETWEEN ABOUT 0.01 AND 4 VOLUMES PER VOLUME OF SAID ORGANIC SOLVENT; SAID ORGANIC SOLVENT BEING AN ORGANIC LIQUID IN WHICH THE ALKALI METAL AND ALKALINE EARTH METAL SALTS OF SAID MINERAL ACID ARE SOLUBLE; (B) THE AMOUNT OF SAID LIQUID REACTION MEDIUM SO CONTACTED WITH SAID CLAY BEING SUFFICIENT TO PROVIDE BETWEEN ABOUT 1 AND 10 EQUIVALENT WEIGHTS OF SAID ACID PER EQUIVALENT BASE EXCHANGE-CAPACITY OF SAID CLAY; AND (C) THEREAFTER SEPARATING SAID REACTION MEDIUM AS A LIQUID FROM SAID CLAY TO REMOVE SAID ALKALI METAL AND ALKALINE EARTH METAL CATIONS FROM SAID CLAY AND TO PREPARE SAID HYDROGEN CLAY.
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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |