US3764515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for hydrocracking heavy hydrocarbons
Assignee: Shell USA Inc
•
Filing: 1971-04-23
•
Granted: 1973-10-09
•
Expires: 1991-04-23
Abstract
Abstract There is disclosed a process for hydrocracking coal or other heavy hydrocarbon fractions employing a molten catalyst system, including a mineral acid that is stable at reaction conditions, and a metal halide catalyst selected from zinc chloride, bromide or iodide, antimony bromide or iodide, tin bromide, titanium iodide, arsenic bromide or iodide, mercuric bromide or iodide, gallium bromide, or bismuth bromide. If a halogen acid is employed as the mineral acid, it is preferred that the halogen in the metal salt correspond to the halogen in the acid.
Inventors
- 👤 T Kiovsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:23
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
23 words
The process of claim 1 wherein the mineral acid is the hydrogen halide that corresponds to the halogen portion of the metal halide.
Claim 2
Dependent Claim
12 words
The process of claim 1 wherein the mineral acid is pyrophosphoric acid.
Claim 3
Dependent Claim
19 words
The process of claim 1 wherein the metal halide is antimony tribromide and the mineral acid is hydrogen bromide.
Claim 4
Dependent Claim
12 words
The process of claim 1 wherein the mineral acid is sulfuric acid.
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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |