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US4323481A
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Synthesis of molecular sieves using beta-diketones as organic templates
Assignee: BP Corp North America Inc
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Filing: 1981-02-26
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Granted: 1982-04-06
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Expires: 2001-02-26
Abstract
Abstract A ferrierite crystalline aluminosilicate is prepared by (1) forming an aqueous mixture of an oxide of aluminum, an oxide of silicon, a metal cation and a beta-diketone as a template compound, (2) maintaining the pH of such mixture between 9 and 14, and (3) crystallizing the mixture.
Inventors
- 👤 James A. Kaduk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:25
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/18; B01J29/20; B01J29/22; B01J29/65; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2861; C01B39/00; C01B39/02; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2702; C07C5/2708; C10G35/00; C10G35/04; C10G35/06; C10G35/095; B01J2229/00; B01J2229/10; B01J2229/26; B01J2229/30; B01J2229/42; Y; Y10; Y10S; Y10S423/00; Y10S423/23; Y10S423/25
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
46 words
A method to prepare a crystalline aluminosilicate comprising (1) forming an aqueous mixture of an oxide of aluminum, an oxide of silicon, a metal cation and a beta-diketone, (2) maintaining the pH of such mixture between about 9 and about 14 and (3) crystallizing such mixture.
Claim 2
Independent Claim
46 words
A method to prepare a crystalline aluminosilicate comprising (1) forming an aqueous mixture of an oxide of aluminum, an oxide of silicon, a metal cation and a beta-diketone, (2) maintaining the pH of such mixture between about 9 and about 14 and (3) crystallizing such mixture.
Claim 3
Dependent Claim
11 words
The method of claim 1 wherein the crystalline aluminosilicate is ferrierite-like.
Claim 4
Dependent Claim
10 words
The method of claim 1 wherein the beta-diketone is 2,4-pentanedione.
Claim 5
Dependent Claim
13 words
The method of claim 1 wherein the oxide of aluminum is sodium aluminate.
Claim 6
Dependent Claim
53 words
The method of claim 2 wherein the composition of the mixture of initial reactants in terms of mole ratios is: ______________________________________
SiO.sub.2 /Al.sub.2 O.sub.3
2-240
R/Si 0.01-1.0
M.sup.n+ /Al 0.1-100
R/Al 0.01-120
H.sub.2 O/Si 5-100
______________________________________ wherein R is an organic compound and M is at least one cation having a valence n.
Claim 7
Dependent Claim
54 words
The method of claim 2 wherein the composition of the mixture of initial reactants in terms of mole ratios is: ______________________________________
SiO.sub. 2 /Al.sub.2 O.sub.3
10-80
R/Si 0.1-0.5
M.sup.n+ /Al 1-10
R/Al 0.5-20
H.sub.2 O/Si 10-40
______________________________________ wherein R is an organic compound and M is at least one cation having a valence n.
Claim 8
Dependent Claim
19 words
The method of claim 2 wherein the pH of the mixture is maintained between about 12.4 and about 12.8.
Claim 9
Dependent Claim
26 words
The method of claim 2 wherein the crystallizing mixture is maintained at about 100° C. to about 250° C. for about 0.25 to about 20 days.
Claim 10
Dependent Claim
26 words
The method of claim 2 wherein the crystallizing mixture is maintained at about 125° C. to about 200° C. for about two to about five days.
Claim 11
Dependent Claim
13 words
The method of claim 6 wherein M is an alkali-metal or alkaline-earth-metal cation.
Claim 12
Dependent Claim
15 words
The method of claim 1 wherein the oxide of silicon is a silicic acid polymer.
Claim 13
Dependent Claim
19 words
The method of claim 2 wherein a catalytically active ion or compound is placed onto the ferrierite crystalline aluminosilicate.
Claim 14
Dependent Claim
17 words
The method of claim 12 wherein he catalytically active ion is exchanged onto the ferrierite crystalline aluminosilicate.
Claim 15
Dependent Claim
31 words
The method of claim 13 wherein the cataytically active ion is hydrogen, metal ions of Groups IB, IIB, IIIA or VIII or of manganese, vanadium, chromium, uranium or rare earth elements.
Claim 16
Dependent Claim
11 words
The method of claim 14 wherein the ion is nickel ion.
Claim 17
Dependent Claim
17 words
The method of claim 12 wherein a catalytically active compound is impregnated onto the ferrierite crystalline aluminosilicate.
Claim 18
Dependent Claim
33 words
The method of claim 16 wherein the cataytically active compound is a water soluble salt of hydrogen, metals of Groups IB, IIB, IIIA, IVB, VB, VIB, VIIB or VIII, or rare earth elements.
Claim 19
Dependent Claim
15 words
The method of claim 17 wherein the catalytically active compound is a salt of platinum.
Claim 20
Dependent Claim
18 words
The method of claim 2 wherein the prepared ferrierite molecular sieve is incorporated within a suitable matrix material.
Claim 21
Dependent Claim
14 words
The method of claim 19 wherein the matrix material is silica, silica-alumina or alumina.
Claim 22
Dependent Claim
11 words
The method of claim 1 wherein the crystalline aluminosilicate is mordenite-like.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-04-05 | 1985-10-05 | 1986-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-05 | 1989-10-05 | 1990-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-05 | 1993-10-05 | 1994-04-06 | $7700.00 | Window Closed / Lapsed |