US3715983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosive fragmentation of porous solids
Assignee: Mobil Oil AS
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Filing: 1970-11-03
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Granted: 1973-02-13
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Expires: 1990-11-03
Abstract
Abstract Porous solids having surface area of at least five square meters per gram are reduced to smaller particle size by explosive fragmentation. Exemplary disclosure concerns aluminosilicate zeolites in extremely finely divided form prepared by detonation of crystalline zeolites having adsorbed therein explosive compounds and compositions. In one particular embodiment, finely divided zeolite catalyst is supplied to the reactants and energy is furnished to the system by detonation of explosive-loaded crystalline zeolites within the reaction mixture. In addition, the products of detonation may afford reactants.
Inventors
- 👤 E Rosinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:59
CPC Classifications
F; F42; F42B; F42B1/00; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/085; B01J29/087; B01J29/50; C; C01; C01P; C01P2006/00; C01P2006/12; C01P2006/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
62 words
The method of preparing a finely divided zeolitic porous crystalline aluminosilicate which comprises impregnating into the pores of a zeolitic porous crystalline aluminosilicate having a surface area of at least 15 square meters per gram and a pore volume greater than 0.2 cc per gram with an explosive composition and detonating said explosive composition, whereby diffusivity in the crystalline aluminosilicate is enhanced.
Claim 2
Independent Claim
62 words
The method of preparing a finely divided zeolitic porous crystalline aluminosilicate which comprises impregnating into the pores of a zeolitic porous crystalline aluminosilicate having a surface area of at least 15 square meters per gram and a pore volume greater than 0.2 cc per gram with an explosive composition and detonating said explosive composition, whereby diffusivity in the crystalline aluminosilicate is enhanced.
Claim 3
Dependent Claim
14 words
The method of claim 1 wherein the detonation is conducted within a confined zone.
Claim 4
Dependent Claim
22 words
The method of claim 1 wherein the impregnated porous solid is associated with a heat absorbing material at the time of detonation.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |