US3354096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pelleted zeolite compositions possessing improved crushing strength
Assignee: Union Oil Company of California
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Filing: 1965-04-06
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Granted: 1967-11-21
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Expires: 1985-04-06
Abstract
No abstract record available.
Inventors
- 👤 Young Dean Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:20
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/084; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/183; B01J29/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A MECHANICALLY STABLE, ABSORBENT COMPOSITION COMPRISING A PHOSPHATE-BONDED PELLET OF CRYSTALLINE, ALUMINOSILICAT ZEOLITE, SAID ZEOLITE HAVING A SIO2/AL2O3 MOLERATIO BETWEEN ABOUT 3 AND 12, AND WHEREIN THE PHOSPHATE BOND IS PRODUCED BY CALCINING AN ACIDIC CO-PELLETED MIXTURE OF SAID ZEOLITE AND A PHOSPHORUS OXIDE PRECURSOR SELECTED FROM THE GROUP CONSISTING OF PHOSPHORIC ACID, AMMONIUM SALTS OF PHOSPHORIC ACID, AND MIXED HYDROGEN AND/OR AMMONIUM PHOSPHATES OF WEAKLY BASIC POLYVALENT METAL LCATIONS HAVING AN IONIC RADIUS OF LESS THAN ABOUT 1.0 ANGSTROM, SUFFICIENT OF SAID PHOSPHORUS OXIDE PRECURSOR BEING EMPLOYED TO YIELD A FINAL COMPOSITION CONTAINING 1-50% BY WEIGHT OF PHOSPHATE CALCULATED AS P2O5.
Claim 2
Dependent Claim
102 words
A MECHANICALLY STABLE, ABSORBENT COMPOSITION COMPRISING A PHOSPHATE-BONDED PELLET OF CRYSTALLINE, ALUMINOSILICAT ZEOLITE, SAID ZEOLITE HAVING A SIO2/AL2O3 MOLERATIO BETWEEN ABOUT 3 AND 12, AND WHEREIN THE PHOSPHATE BOND IS PRODUCED BY CALCINING AN ACIDIC CO-PELLETED MIXTURE OF SAID ZEOLITE AND A PHOSPHORUS OXIDE PRECURSOR SELECTED FROM THE GROUP CONSISTING OF PHOSPHORIC ACID, AMMONIUM SALTS OF PHOSPHORIC ACID, AND MIXED HYDROGEN AND/OR AMMONIUM PHOSPHATES OF WEAKLY BASIC POLYVALENT METAL LCATIONS HAVING AN IONIC RADIUS OF LESS THAN ABOUT 1.0 ANGSTROM, SUFFICIENT OF SAID PHOSPHORUS OXIDE PRECURSOR BEING EMPLOYED TO YIELD A FINAL COMPOSITION CONTAINING 1-50% BY WEIGHT OF PHOSPHATE CALCULATED AS P2O5.
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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |