Patent US2257997A successfully refreshed from Google Patents.
Patent US3512531A successfully refreshed from Google Patents.
Patent US3280040A successfully refreshed from Google Patents.
US3280040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making multi-component catalysts
Assignee: Chevron USA Inc
•
Filing: 1964-05-22
•
Granted: 1966-10-18
•
Expires: 1984-05-22
Abstract
No abstract record available.
Inventors
- 👤 Jaffe Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:06
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/40; H01F27/402; B; B01; B01J; B01J21/00; B01J21/20; B01J23/00; B01J23/70; B01J23/74; B01J23/755; B01J23/76; B01J23/84; B01J23/85; B01J23/88; B01J23/883; B01J23/90; B01J37/00; B01J37/02; B01J37/03; B01J37/20; C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G45/00; C10G45/58; C10G45/60; C10G49/00; C10G49/02; H01H; H01H85/00; H01H85/02; H01H85/0241; C08; C08L; C08L75/00; C08L75/04; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
A METHOD FOR PRODUCING A COPRECIPATED SOLID CONTAINING AT LEAST ONE METAL OXIDE AND HAVING A MINIMUM OF THREE COMPONENTS THEREIN, SAID COMPONENTS HAVING BEEN PRECIPITATED SIMULTANEOUSLY, WHICH COMPRISES THE STEPS: (A) COPRECIPIATING A MIXTURE OF AT LEAST THREE METAL COMPOUNDS AT A PH OF FROM ABOUT 5.5 TO ABOUT 8, SAID MIXTURE HAVING ALL OF THE FOLLOWING CHARACTERISTICS, (I) SAID MIXTURE BEING AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF SOLUTIONS AND SOLS, (II) AT LEAST ONE OF SAID METAL COMPOUNDS BEING A COMPOUND OF A METAL WHOSE SOLID OXIDE POSSESSED CATALYTIC ISOMERIZATION ACTIVITY, (III) AT LEAST ONE OF SAID MTAL COMPOUNDS BEING A COMPOUND OF A METAL WHICH POSSESSES CATALYTIC HYDROGENATION ACTIVITY WHEN IN THE FORM SELECTED FROM THE GROUP CONSISTING OF THE METAL, THE METAL OXIDE AND THE METAL SULFIDE, AND (IIII) AT LEAST ONE OF SAID METAL COMPOUNDS BEING A METAL CHLORIDE, (B) REDUCING THE CHLORIDE CONTENT OF THE RESULTING COPRECIPITATE TO BELOW ABOUT 0.25 PERCENT OF THE TOTAL WEIGHT THEREOF BY WASHING AND ANION EXCHANGE, SAID ANION EXCHANGE BEING CONDUCTED IN THE PRESENCE OF ACETATE ION, AND (C) DRYING THE RESULTING COPRECIPITATE TO PRODUCE SAID COPRECIPITATED SOLID.
Claim 2
Independent Claim
193 words
A METHOD FOR PRODUCING A COPRECIPATED SOLID CONTAINING AT LEAST ONE METAL OXIDE AND HAVING A MINIMUM OF THREE COMPONENTS THEREIN, SAID COMPONENTS HAVING BEEN PRECIPITATED SIMULTANEOUSLY, WHICH COMPRISES THE STEPS: (A) COPRECIPIATING A MIXTURE OF AT LEAST THREE METAL COMPOUNDS AT A PH OF FROM ABOUT 5.5 TO ABOUT 8, SAID MIXTURE HAVING ALL OF THE FOLLOWING CHARACTERISTICS, (I) SAID MIXTURE BEING AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF SOLUTIONS AND SOLS, (II) AT LEAST ONE OF SAID METAL COMPOUNDS BEING A COMPOUND OF A METAL WHOSE SOLID OXIDE POSSESSED CATALYTIC ISOMERIZATION ACTIVITY, (III) AT LEAST ONE OF SAID MTAL COMPOUNDS BEING A COMPOUND OF A METAL WHICH POSSESSES CATALYTIC HYDROGENATION ACTIVITY WHEN IN THE FORM SELECTED FROM THE GROUP CONSISTING OF THE METAL, THE METAL OXIDE AND THE METAL SULFIDE, AND (IIII) AT LEAST ONE OF SAID METAL COMPOUNDS BEING A METAL CHLORIDE, (B) REDUCING THE CHLORIDE CONTENT OF THE RESULTING COPRECIPITATE TO BELOW ABOUT 0.25 PERCENT OF THE TOTAL WEIGHT THEREOF BY WASHING AND ANION EXCHANGE, SAID ANION EXCHANGE BEING CONDUCTED IN THE PRESENCE OF ACETATE ION, AND (C) DRYING THE RESULTING COPRECIPITATE TO PRODUCE SAID COPRECIPITATED SOLID.
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |