US4176090A
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US
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Pillared interlayered clay materials useful as catalysts and sorbents
Assignee: WR Grace and Co Conn
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Filing: 1978-03-10
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Granted: 1979-11-27
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Expires: 1998-03-10
Abstract
Abstract Stable pillared interlayered clay compositions are prepared by reacting smectite type clays with polymeric cationic hydroxy metal complexes of metals such as aluminum, zirconium, and/or titanium. These novel interlayered clay compositions which possess substantial surface area in pores of less than 30 A in diameter are used as catalysts, catalytic supports, and sorbents.
Inventors
- 👤 David E. W. Vaughan
- 👤 Roger J. Lussier
- 👤 John S. Magee, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:27
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/049; B01J20/00; B01J20/02; B01J20/10; B01J20/12; C; C01; C01B; C01B33/00; C01B33/20; C01B33/26
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
60 words
An interlayered smectite clay product which includes an inorganic oxide selected from the group consisting of alumina, zirconia and mixtures thereof between the layers thereof, and which possesses an interlayer distance of from about 6 to 16 A, said interlayered clay having greater than about 50 percent of its surface area in pores of less than 30 A in diameter.
Claim 2
Dependent Claim
60 words
An interlayered smectite clay product which includes an inorganic oxide selected from the group consisting of alumina, zirconia and mixtures thereof between the layers thereof, and which possesses an interlayer distance of from about 6 to 16 A, said interlayered clay having greater than about 50 percent of its surface area in pores of less than 30 A in diameter.
Claim 3
Dependent Claim
11 words
The product of claim 1 wherein said inorganic oxide is alumina.
Claim 4
Dependent Claim
11 words
The product of claim 1 wherein said inorganic oxide is zirconia.
Claim 5
Dependent Claim
13 words
The product of claim 1 wherein said inorganic oxide is silica and alumina.
Claim 6
Dependent Claim
13 words
The product of claim 1 wherein said inorganic oxide is alumina and magnesia.
Claim 7
Dependent Claim
23 words
The product of claim 1 wherein the smectite is selected from the group consisting of hectorite, chlorite, bentonite, montmorillonite, beidellite, and mixtures thereof.
Claim 8
Dependent Claim
27 words
The smectite of claim 1 exchanged with cations selected from the group consisting of hydrogen, ammonium, Group IB to VIII of the periodic table, and mixtures thereof.
Claim 9
Dependent Claim
71 words
A process for preparing an interlayered smectite which comprises: (a) reacting a smectite with a mixture of a polymeric cationic hydroxy inorganic metal complex selected from the group comprising aluminum and zirconium complexes and mixtures thereof and water to obtain a smectite having greater than 50 percent of its surface area in pores of less than 30 A in diameter after dehydration; and (b) separating the interlayered smectite from the mixture.
Claim 10
Dependent Claim
71 words
A process for preparing an interlayered smectite which comprises: (a) reacting a smectite with a mixture of a polymeric cationic hydroxy inorganic metal complex selected from the group comprising aluminum and zirconium complexes and mixtures thereof and water to obtain a smectite having greater than 50 percent of its surface area in pores of less than 30 A in diameter after dehydration; and (b) separating the interlayered smectite from the mixture.
Claim 11
Dependent Claim
26 words
The process of claim 8 wherein said mixture is reacted at a temperature of 5° to 200° C. from a period of 0.1 to 4 hours.
Claim 12
Dependent Claim
23 words
The process of claim 8 wherein said smectite is selected from the group consisting of hectorite, chlorite, bentonite, montmorillonite, beidellite and mixtures thereof.
Claim 13
Dependent Claim
56 words
The process of claim 8 wherein said metal complex has the formula Al 2+n (OH) 3n X 6 wherein n has the value of 4 to 12 and wherein up to about 10% of the aluminum is tetrahedrally coordinated; and X is selected from the group consisting of Cl, Br, NO 3 and CO 3 .
Claim 14
Dependent Claim
12 words
The process of claim 8 wherein said metal complex is aluminum chlorhydrol.
Claim 15
Dependent Claim
11 words
The process of claim 8 wherein said metal complex contains titanium.
Claim 16
Dependent Claim
19 words
The process of claim 8 wherein said interlayered smectite is heated at a temperature of 200° to 700° C.
Claim 17
Dependent Claim
28 words
The process of claim 8 wherein from about 0.05 to 2.0 parts by weight of said metal complex is mixed with each part by weight of said smectite.
Claim 18
Dependent Claim
11 words
A hydrocarbon conversion catalyst comprising the interlayered smectite of claim 7.
Claim 19
Dependent Claim
28 words
A hydrocracking catalyst comprising the interlayered smectite of claim 1, and a metal selected from the group consisting of Group VIII noble metals, Ni, Co, W and Mo.
Claim 20
Dependent Claim
23 words
An adsorbent composition comprising the interlayered smectite of claim 1 formed into particles having Tyler mesh sizes of from about 4 to 400.
Claim 21
Dependent Claim
36 words
A hydrocarbon conversion catalyst comprising the interlayered clay of claim 1, admixed with a crystalline aluminosilicate zeolite which comprises a member selected from the group consisting of inorganic oxides and a matrix clay, and mixtures thereof.
Claim 22
Dependent Claim
13 words
The method of claim 8 wherein the metal complex is an aluminum complex.
Claim 23
Dependent Claim
13 words
The method of claim 8 wherein the metal complex is a zirconium complex.
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) | 1982-11-26 | 1983-05-28 | 1983-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-26 | 1987-05-28 | 1987-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-26 | 1991-05-28 | 1991-11-27 | $7700.00 | Window Closed / Lapsed |