EP0057049A1
Expired / Lapsed
EP
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Crystalline alumino silicates and their use as catalysts
Assignee: BP PLC
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Filing: 1982-01-06
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Granted: —
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Expires: 2002-01-06
Abstract
Abstract 0 Novel crystalline alumino silicates having the following composition in terms of the mole ratio of the oxides: wherein M is at least one cation having a valence n, x is at least 10 and y/x is between 0 and 25, said aluminosilicates having a characteristic X-ray diffraction pattern. The cation M in the aluminosilicates is preferably selected from H + , ammonium, alkali metal cations, alkaline earth metal cations, organic nitrogen-containing cations, aluminium cations, gallium cations and mixtures thereof. The invention also comprises a process for producing the aluminosilicate by mixing together a source of silica, a source of alumina, a source of alkali metal(s), water and an organic nitrogen containing base until a homogeneous gel is formed and crystallising the mixture at a temperature above 70°C for a period of at least 2 hours.
Inventors
- 👤 Sami Ali Ibrahim Barri
- 👤 Philip Howard
- 👤 Clive David Telford
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 10:56
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/70; B01J29/7042; B01J29/7049; B01J29/7092; B01J29/90; C; C01; C01B; C01B39/00; C01B39/02; C01B39/46; C01B39/48; C07; C07C; C07C2/00; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/70; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
60 words
Novel crystalline aluminosilicates having the following composition in terms of the mole ratios of the oxides: wherein M is at least one cation having a valence n, x is at least 10 and y/x is between 0 and 25, said aluminosilicates in the calcined hydrogen-form having an X-ray diffraction pattern substantially as set forth in Table A of the specification.
Claim 2
Dependent Claim
60 words
Novel crystalline aluminosilicates having the following composition in terms of the mole ratios of the oxides: wherein M is at least one cation having a valence n, x is at least 10 and y/x is between 0 and 25, said aluminosilicates in the calcined hydrogen-form having an X-ray diffraction pattern substantially as set forth in Table A of the specification.
Claim 3
Dependent Claim
26 words
Novel crystalline aluminosilicates according to claim 1 having, in the calcined hydrogen-form, an X-ray diffraction pattern substantially as set forth in Table B of the specification.
Claim 4
Dependent Claim
26 words
Novel crystalline aluminosilicates according to claim 1 having, in the calcined hydrogen-form, an X-ray diffraction pattern substantially as set forth in Table 1 of the specification.
Claim 5
Dependent Claim
40 words
Novel crystalline aluminosilicates according to any one of the preceding claims wherein the cation M is selected from H + , ammonium, alkali metal cations, alkaline earth metal cations, organic nitrogen containing cations, aluminium cations, gallium cations and mixtures thereof.
Claim 6
Dependent Claim
22 words
Novel crystalline aluminosilicates according to claim 4 wherein the cations present in the aluminosilicate are replaced wholly or partially by ion-exchange .
Claim 7
Dependent Claim
35 words
Novel crystalline aluminosilicates according to claim 5 wherein the calcined hydrogen-form of the aluminosilicate is produced by exchange with acidic or ammonium cations, or a combination of both, followed by one or more calcination steps.
Claim 8
Dependent Claim
59 words
A process for producing the crystalline aluminosilicates as claimed in claim 1 which process comprises mixing a source of silica, a source of alumina, a source of alkali metal(s), water and an organic nitrogen containing base until a homogeneous gel is formed and crystallising the mixture at a temperature above 70°C for a period of at least 2 hours.
Claim 9
Dependent Claim
34 words
A process according to claim 7 wherein the mixing is effected at a temperature in the range 0 to 100°C and the mixture is crystallised at a temperature in the range 100 to 220°C.
Claim 10
Dependent Claim
18 words
A process according to either claim 7 or claim 8 wherein the organic nitrogen containing base is diethanolamine.
Claim 11
Dependent Claim
35 words
A process according to any one of claims 7 to 9 wherein the source of silica is added to the other reagents in such a way as to commence gelation at a relatively high pH.
Claim 12
Dependent Claim
73 words
A process according to any one of claims 7 to 10 wherein in the mixture the silica to alumina mole ratio is greater than 40:1, the free alkali metal(s) hydroxide to water mole ratio is greater than 2xlo- 3 :1, the mole ratio of silica to alkali metal(s) oxide or hydroxide is in the range 1:1 to 20:1 and the mole ratio of water to silica is in the range 4:1 to 50:1.
Claim 13
Dependent Claim
76 words
A process according to claim 11 wherein in the mixture the silica to alumina mole ratio is in the range 60:1 to 500:1, the free alkali metal(s) hydroxide to water mole ratio is in the range 2x10 -3 :1 to 8x10- 3 :1, the mole ratio of silica to alkali metal(s) oxide or hydroxide is in the range 5:1 to 15:1 and the mole ratio of water to siica is in the range 6:1 to 30:1.
Claim 14
Dependent Claim
55 words
A process according to any one of claims 7 to 12 wherein the aluminosilicate product or the hydrogen-form thereof is subjected to exchange or impregnation with any one of the metals or groups of metals belonging to Groups IB, IIB, IIIA, IVA, VA, VIB, VIIB and VIII according to the Periodic Table due to Mendeleef.
Claim 15
Dependent Claim
42 words
A hydrocarbon conversion process using as catalyst a composition comprising a crystalline aluminosilicate as claimed in any one of the preceding claims 1 to 6 and/or produced by a process as claimed in any one of the preceding claims 7 to 13.
References Cited (Backward Citations)
US3702886A
Cited
EP0002900A1
Cited
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