Patent US574767A successfully refreshed from Google Patents.
US2495751A
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Conversion of hydrocarbons with modified clay catalysts
Assignee: Houdry Process Corp
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Filing: 1946-04-30
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Granted: 1950-01-31
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Expires: 1966-04-30
Abstract
No abstract record available.
Inventors
- 👤 Mills George Alexander
- 👤 Edward B Cornelius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:37
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; B; B01; B01J; B01J21/00; B01J21/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
THE PROCESS OF CONVERTING HYDROCARBONS OF HIGHER BOILING RANGE TO PRODUCTS IN THE BOILING RANGE OF GASOLINE WHICH COMPRISES SUBJECTING THE HIGHER BOILING HYDROCARBONS UNDER CATALYTIC CRACKING CONDITIONS TO CONTACT WITH A CATALYST COMPRISING THE PRODUCT PREPARED BY A PROCESS INCLUDING EXTRACTING CLAY WITH ACID TO DISSOLVE A PORTION THEREOF CONSTITUTING A SUBSTANTIAL QUANTITY OF ITS ALUMINUM CONTENT, LEAVING AN UNDISSOLVED CLAY RESIDUE COMPRISING SILICA AND ALUMINA, PURIFYING THE THUS OBTAINED ACID EXTRACT SOLUTION POSITING THE UNDISSOLVED CLAY RESIDUE WITH GEL FORMED BY PRECIPITATION WITH AN ALKALI METAL SILICATE OF THE DISSOLVED ALUMINUM SALTS IN THE PURIFIED SOLUTION, SAID PRECIPITATION BEING EFFECTED IN THE PRESENCE OF SAID UNDISSOLVED CLAY RESIDUE, FREEING THE OBTAINED COMPOSITE OF WATER SOLUBLE SALTS, AND CALCINING THE COMPOSITE.
Claim 2
Dependent Claim
122 words
THE PROCESS OF CONVERTING HYDROCARBONS OF HIGHER BOILING RANGE TO PRODUCTS IN THE BOILING RANGE OF GASOLINE WHICH COMPRISES SUBJECTING THE HIGHER BOILING HYDROCARBONS UNDER CATALYTIC CRACKING CONDITIONS TO CONTACT WITH A CATALYST COMPRISING THE PRODUCT PREPARED BY A PROCESS INCLUDING EXTRACTING CLAY WITH ACID TO DISSOLVE A PORTION THEREOF CONSTITUTING A SUBSTANTIAL QUANTITY OF ITS ALUMINUM CONTENT, LEAVING AN UNDISSOLVED CLAY RESIDUE COMPRISING SILICA AND ALUMINA, PURIFYING THE THUS OBTAINED ACID EXTRACT SOLUTION POSITING THE UNDISSOLVED CLAY RESIDUE WITH GEL FORMED BY PRECIPITATION WITH AN ALKALI METAL SILICATE OF THE DISSOLVED ALUMINUM SALTS IN THE PURIFIED SOLUTION, SAID PRECIPITATION BEING EFFECTED IN THE PRESENCE OF SAID UNDISSOLVED CLAY RESIDUE, FREEING THE OBTAINED COMPOSITE OF WATER SOLUBLE SALTS, AND CALCINING THE COMPOSITE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-30 | 1953-08-01 | 1954-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-30 | 1957-08-01 | 1958-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-30 | 1961-08-01 | 1962-01-31 | $7700.00 | Window Closed / Lapsed |