EP0307060A2
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EP
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Process for the preparation of crystalline (metallo) silicates
Assignee: Shell Internationale Research Maatschappij BV
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Filing: 1988-09-08
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Granted: —
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Expires: 2008-09-08
Abstract
Abstract Process for the preparation of crystalline (metallo) silicates and/or derivatives thereof from a silica source, an organic cation source, a source of water and optionally an alkali(ne earth) metal and/or an aluminium and/or a further metal source wherein a crystalline (metallo) silicate is produced under synthesis conditions from a solution or a gel wherein at least 30%, on an atomic basis, of the silicon in said solution or gel originates from one or more crystallized quaternary ammonium or phosphonium double n-ring (metallo) silicate clathrates wherein n is 3, 4 or 5. Crystalline (metallo) silicates which can be suitably prepared according to the present process comprise SCS-1, SCS-2, SCS-4, dodecasil-3C, TMA-zeolite T, TMA-sodalite, ZSM-12, zeolite beta and zeolite L.
Inventors
- 👤 Johannes Petrus Van Den Berg
- 👤 Peterina Cornelia De Jong-Versloot
- 👤 Andras Guus Theodorus George Kortbeek
- 👤 Martin Franciscus Maria Post
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 05:46
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/03; B01J29/04; B01J29/06; B01J29/60; B01J29/70; B01J29/7007; B01J29/7034; C; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/18; C01B33/181; C01B33/185; C01B33/20; C01B33/26; C01B33/28; C01B33/2807; C01B33/2876; C01B33/2892; C01P; C01P2002/00; C01P2002/70; C01P2002/72; C01P2006/00; C01P2006/80
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
88 words
Process for the preparation of crystalline (metallo) silicates and/or derivatives thereof from a silica source, an organic cation source, a source of water and optionally an alkali(ne earth) metal and/or an aluminium and/or a further metal source wherein a crystalline (metallo) silicate is produced under synthesis conditions from a solution or a gel wherein at least 30%,on an atomic basis,of the silicon in said solution or gel originates from one or more crystallized quaternary ammonium or phosphonium double n-ring (metallo) silicate clathrates wherein n is 3,4 or 5.
Claim 2
Dependent Claim
88 words
Process for the preparation of crystalline (metallo) silicates and/or derivatives thereof from a silica source, an organic cation source, a source of water and optionally an alkali(ne earth) metal and/or an aluminium and/or a further metal source wherein a crystalline (metallo) silicate is produced under synthesis conditions from a solution or a gel wherein at least 30%,on an atomic basis,of the silicon in said solution or gel originates from one or more crystallized quaternary ammonium or phosphonium double n-ring (metallo) silicate clathrates wherein n is 3,4 or 5.
Claim 3
Dependent Claim
50 words
Process according to claim 1, wherein a solution or a gel is used wherein at least 40%, on atomic basis, of the silicon in said solution or gel originates from one or more crystallized quaternary ammonium or phosphonium double n-ring (metallo) silicate clathrates wherein n is 3, 4 or 5.
Claim 4
Dependent Claim
50 words
Process according to claim 2, wherein a solution or a gel is used wherein more than 50%, on atomic basis, of the silicon in said solution or gel originates from one or more crystallized quaternary ammonium or phosphonium double n-ring (metallo) silicate clathrates wherein n is 3, 4 or 5.
Claim 5
Dependent Claim
28 words
Process according to one or more of claims 1-3 wherein the temperature is kept between 75 °C and 250 °C, in particular between 125 °C and 225 °C.
Claim 6
Dependent Claim
34 words
Process according to one or more of claims 1-4 wherein the forming solution or gel is kept for a period between 12 and 750 hours under crystal-forming conditions,in particular between 24 and 250 hours.
Claim 7
Dependent Claim
29 words
Process according to one or more of claims 1-5 wherein use is made of double n-ring systems comprising the tetramethylammonium cation as part of the double n ring silicate.
Claim 8
Dependent Claim
28 words
Process according to claim 6 wherein use is made of double four ring systems comprising the tetramethylammonium cation to produce SCS-1, SCS-2, SCS-4, dodecasil-3C, TMA-zeolite T or TMA-sodalite.
Claim 9
Dependent Claim
30 words
Process according to one or more of claims 1-5 wherein use is made of a double n-ring system comprising the tetraethylammonium cation as part of the double n ring silicate.
Claim 10
Dependent Claim
29 words
Process according to claim 8 wherein use is made of a double three ring system comprising the tetraetylammonium cation to produce ZSM-12, zeolite beta, zeolite T or zeolite L.
Claim 11
Dependent Claim
26 words
Process according to one or more of claims 1-9 wherein use is made of a solution or gel containing additionally a source of an organic cation.
Claim 12
Dependent Claim
17 words
Process according to claim 10 wherein use is made of diethanol amine, pyridine or a tetraalkylammonium halide.
Claim 13
Dependent Claim
20 words
Process according to claim 11 wherein use is made of tetra(m)ethylammonium bromide or chloride or of tetrapropylammmonium bromide or chloride.
Claim 14
Dependent Claim
29 words
Process according to one or more of claims 1-9 wherein use is made of the presence of an inorganic acid, in particular sulphuric acid, in the solution or gel.
Claim 15
Dependent Claim
24 words
Process according to one or more of claims 1-13 wherein use is made of a metallo silicate clathrate in the starting solution or gel.
Claim 16
Dependent Claim
24 words
Process according to claim 13 wherein use is made of an alumino silicate clathrate or a precursor thereof in the starting solution or gel.
Claim 17
Dependent Claim
24 words
Process according to one or more of claims 1-15 wherein use is made of a further metal source in the starting solution or gel.
Claim 18
Dependent Claim
21 words
Process according to claim 16 wherein use is made of a metal source containing (a compound of) aluminium, gallium or iron.
Claim 19
Dependent Claim
19 words
Process for the preparation of crystalline (metallo) silicates substantially as described hereinbefore with particular reference to the Examples I-X.
Claim 20
Dependent Claim
19 words
Process for the preparation of crystalline (metallo) silicates substantially as described hereinbefore with particular reference to the Examples I-X.
Claim 21
Dependent Claim
19 words
Crystalline (metallo) silicates whenever prepared according to a process as claimed in one or more of the preceding claims.
Claim 22
Dependent Claim
29 words
Use of crystalline (metallo) silicates as produced in accordance with a process according to one or more of claims 1-18, optionally after (partial) drying and/or calcining, as molecular sieves.
Claim 23
Dependent Claim
31 words
Use of crystalline (metallo) silicates as produced in accordance with a process according to one or more of claims 1-18, optionally after (partial) drying and/or calcining as catalysts or catalyst carriers.
References Cited (Backward Citations)
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