US4075125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalysts for hydrodemetallization of hydrocarbons containing metallic compounds as impurities
Assignee: Chiyoda Corp
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Filing: 1976-07-09
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Granted: 1978-02-21
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Expires: 1996-07-09
Abstract
Abstract A catalyst obtained by admixing red mud with alumina or/and an alumina-containing substance, optionally adjusting the water content of the admixture and/or adding an organic binder to the admixture, kneading and shaping the admixture into pellets having suitable size and shape, and calcining the pellets at 600 DEG to 1,100 DEG C. The catalyst has a high compression strength and can, when used in the hydrodemetallization of hydrocarbons, achieve a high rate of demetallization and a low yield of low boiling fractions. The rate of demetallization is enhanced when the process is carried out using a hydrogen feed containing hydrogen sulfide.
Inventors
- 👤 Tatsuo Morimoto
- 👤 Munekazu Nakamura
- 👤 Masayoshi Inooka
- 👤 Teizaburo Yawata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:46
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/0009; C; C10; C10G; C10G2300/00; C10G2300/10; C10G2300/107
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
60 words
A catalyst for hydrodemetallization of hydrocarbons containing metallic compounds as impurities, said catalyst having been prepared by a process wherein red mud is admixed with alumina or/and an alumina-containing substance in a amount of from 1 to 10% by weight based on the weight of the red mud, shaped and calcined at a temperature of 600° C to 1,100° C.
Claim 2
Dependent Claim
60 words
A catalyst for hydrodemetallization of hydrocarbons containing metallic compounds as impurities, said catalyst having been prepared by a process wherein red mud is admixed with alumina or/and an alumina-containing substance in a amount of from 1 to 10% by weight based on the weight of the red mud, shaped and calcined at a temperature of 600° C to 1,100° C.
Claim 3
Dependent Claim
26 words
A catalyst in accordance with Claim 1 in which an organic binder together with said alumina or/and said alumina-containing substance is admixed with said red mud.
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) | 1981-02-20 | 1981-08-22 | 1982-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-20 | 1985-08-22 | 1986-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-20 | 1989-08-22 | 1990-02-21 | $7700.00 | Window Closed / Lapsed |