US4518704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Activated carbon formed body and method of producing the same
Assignee: Kyocera Corp
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Filing: 1983-10-24
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Granted: 1985-05-21
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Expires: 2003-10-24
Abstract
Abstract This disclosure relates to a formed body having activated carbon granules bondedly carried by an inorganic substance body consisting of a sintered body or fused body of inorganic substance powder. The formed body preferably is of a honeycombed structure. The formed body is not only high in strength, excellent in absorbing ability, long in service life, but also permits of molding into various shapes fit for uses. The invention also relates to a method of producing the formed body of the type described above. The method essentially follows the conventional ceramic firing art or ceramic production art.
Inventors
- 👤 Yoshikatsu Okabayashi
- 👤 Noboru Nakamura
- 👤 Takeshi Matsumoto
- 👤 Yoshimasa Osumi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:47
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/20; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
114 words
A method for producing a porous, fired, activated carbon formed body having a honeycombed structure about 60 to 70% of which is open space, comprising the steps of: (a) forming a mixture of from 70 to 30 wt. % of activated carbon granules, with from 30 to 70 wt. % of a clay carrier; (b) extruding said mixture into a body having a honeycombed shape about 60 to 70% of which is open space; (c) drying the thus-formed body; and (d) firing said dried body in a non-oxidizing atmosphere at a temperature of about 1100° C. for about 1 hour to about 4 hours thereby bonding the activated carbon granules with the clay carrier.
Claim 2
Independent Claim
114 words
A method for producing a porous, fired, activated carbon formed body having a honeycombed structure about 60 to 70% of which is open space, comprising the steps of: (a) forming a mixture of from 70 to 30 wt. % of activated carbon granules, with from 30 to 70 wt. % of a clay carrier; (b) extruding said mixture into a body having a honeycombed shape about 60 to 70% of which is open space; (c) drying the thus-formed body; and (d) firing said dried body in a non-oxidizing atmosphere at a temperature of about 1100° C. for about 1 hour to about 4 hours thereby bonding the activated carbon granules with the clay carrier.
Claim 3
Dependent Claim
23 words
The porous, fired, activated carbon formed body according to claim 1 wherein said carbon granules have a size of 100 to 300 mesh.
Claim 4
Dependent Claim
19 words
The porous, fired, activated carbon formed body according to claim 1 wherein said honeycomb structure defines a plate-like body.
Claim 5
Dependent Claim
21 words
The porous, fired, activated carbon formed body according to claim 1 wherein said activated carbon granules are palm activated carbon granules.
Claim 6
Dependent Claim
26 words
The porous, fired, activated carbon body according to claim 1 wherein said activated carbon granules have a surface area of more than 800 m 2 /g.
Claim 7
Dependent Claim
22 words
The porous, fired, activated carbon body according to claim 1 wherein said body defines about 300 to 600 cells per square inch.
Claim 8
Dependent Claim
42 words
The method according to claim 1 wherein said non-oxidizing atmosphere is selected from the group consisting of H 2 , CO 2 , a mixture of N 2 and H 2 , and a mixture of CO 2 and H 2 .
Claim 9
Dependent Claim
15 words
A porous, fired, activated carbon formed body manufactured by the method according to claim 1.
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) | 1988-05-20 | 1988-11-19 | 1989-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-20 | 1992-11-19 | 1993-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-20 | 1996-11-19 | 1997-05-21 | $7700.00 | Window Closed / Lapsed |