US3016355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Activation of clay by acid treatment, supplementary treatment and calcination
Assignee: Minerals and Chemicals Philipp Corp
•
Filing: 1957-10-21
•
Granted: 1962-01-09
•
Expires: 1977-10-21
Abstract
No abstract record available.
Inventors
- 👤 Alfred J Robinson
- 👤 Aldo P Allegrini
- 👤 Albert J Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:35
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/16; B01J37/00; B01J37/08; B01J37/082; B01J37/084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
A METHOD FOR THE PREPARATION O F A HYDROCARBON CONVERSION CATALYST COMPRISING REACTING KAOLIN CLAY WITH SULFURIC ACID IN AN AMOUNT OF FROM 20 PERCENT TO 130 PERCENT BY WEIGHT BASED ON THE VOLATILE FREE WEIGHT OF SAID KAOLIN CLAY, AT LEAST PARTIALLY DEHYDRATING THE REACTED MATERIAL BY HEATING AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 450*F. TO ABOUT 1000*F. THEREBY TO FORM PORES IN THE REACTED MATERIAL, FILLING THE PORES THUS FORMED IN THE REACTED MATERIAL WITH AN ORGANIC LIQUID SELECTED FROM THE GROUP CONSISTING OF MINEARL OIL, GAS OIL, NAPHTHA AND KEROSENE BY SOAKING THE DEHYDRATED MATERIAL IN SUCH ORGANIC LIQUID, CARBONIZING THE ORGANIC LIQUID CONTAINED IN SAID PORES BY HEATING THE REACTED MATERIAL AT AN ELEVATED TEMPERATURE IN A REDUCING ATMOSPHERE, AND FINALLY DESULFATNG SAID REACTED MATERIAL BY HEATING IN AN ATMOSPHERE SELECTED FROM THE GROUP CONSISTING OF STEAM AND A MIXTURE OF STEAM AND REDUCING GASES AT AN ELEVATED TEMPERATURE WITHIN THE RANGE OF FROM 9000*F. TO 1600*F. AND FOR A TIME SUFFICIENT TO DESULFATE COMPLETELY SAID REACTED MATERIAL IN SAID ATMOSPHERE.
Claim 2
Independent Claim
177 words
A METHOD FOR THE PREPARATION O F A HYDROCARBON CONVERSION CATALYST COMPRISING REACTING KAOLIN CLAY WITH SULFURIC ACID IN AN AMOUNT OF FROM 20 PERCENT TO 130 PERCENT BY WEIGHT BASED ON THE VOLATILE FREE WEIGHT OF SAID KAOLIN CLAY, AT LEAST PARTIALLY DEHYDRATING THE REACTED MATERIAL BY HEATING AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 450*F. TO ABOUT 1000*F. THEREBY TO FORM PORES IN THE REACTED MATERIAL, FILLING THE PORES THUS FORMED IN THE REACTED MATERIAL WITH AN ORGANIC LIQUID SELECTED FROM THE GROUP CONSISTING OF MINEARL OIL, GAS OIL, NAPHTHA AND KEROSENE BY SOAKING THE DEHYDRATED MATERIAL IN SUCH ORGANIC LIQUID, CARBONIZING THE ORGANIC LIQUID CONTAINED IN SAID PORES BY HEATING THE REACTED MATERIAL AT AN ELEVATED TEMPERATURE IN A REDUCING ATMOSPHERE, AND FINALLY DESULFATNG SAID REACTED MATERIAL BY HEATING IN AN ATMOSPHERE SELECTED FROM THE GROUP CONSISTING OF STEAM AND A MIXTURE OF STEAM AND REDUCING GASES AT AN ELEVATED TEMPERATURE WITHIN THE RANGE OF FROM 9000*F. TO 1600*F. AND FOR A TIME SUFFICIENT TO DESULFATE COMPLETELY SAID REACTED MATERIAL IN SAID ATMOSPHERE.
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) | 1965-01-08 | 1965-07-10 | 1966-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-08 | 1969-07-10 | 1970-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-08 | 1973-07-10 | 1974-01-09 | $7700.00 | Window Closed / Lapsed |