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Silica-clay complexes

Assignee: Shell Internationale Research Maatschappij BV
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Filing: 1984-11-15
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Granted: —
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Expires: 2004-11-15
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Abstract

Abstract The present invention relates to intercalated clay compositions where the interlayers of said clay have been intercalated with three-dimensional silicon oxide pillars whereby the pillars comprise at least two silicon atom layers parallel to the clay interlayers. These materials have useful catalytic and adsorbent properties.

Inventors

  • 👤 Robert Malcolm Lewis
  • 👤 Kevin Curtis Ott
  • 👤 Rutger Anthony Van Santen

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 04:55
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/049; B01J20/00; B01J20/02; B01J20/10; B01J20/12; B01J20/30; B01J20/32; B01J20/3202; B01J20/3204; B01J20/3231; B01J20/3242; B01J20/3244; B01J20/3246; B01J20/3268; B01J20/3272; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 24 words
A clay composition comprising silica pillars intercalated between the interlayers of said clay wherein said silica pillars have at least two silicon atom layers.
Claim 2
Dependent Claim 24 words
A clay composition comprising silica pillars intercalated between the interlayers of said clay wherein said silica pillars have at least two silicon atom layers.
Claim 3
Dependent Claim 22 words
A composition as claimed in claim 1, wherein said clay is an expandable, swelling layer, lattice clay mineral or synthetic analogue thereof.
Claim 4
Dependent Claim 14 words
A composition as claimed in claim 2, wherein said clay is smectite or vermiculite.
Claim 5
Dependent Claim 19 words
A composition as claimed in claim 3, wherein said smectite is montmorillonite, bentonite, hectorite, beidellite, saponite, nontronite, or sauconite.
Claim 6
Dependent Claim 115 words
A clay composition as claimed in claim 3, wherein said smectite has the formula: (M IV ) 8 (M' VI ) p 0 20 (Q) 4 wherein p equals 4 for cations with a +3 charge, p equals 6 for cations with a +2 charge, Q is hydroxyl or fluoride, IV indicates an ion coordinated to four other atoms, VI indicates an ion coordinated to six other atoms, M is Si +4 , optionally partially substituted by Al , p +5 , B , Ge and Be +2 , and M' is Al +3 and/or Mg +2 , optionally partially substituted by Fe +3, Fe +2 , Ni +2 , Co and Li +1 .
Claim 7
Dependent Claim 21 words
A clay composition as claimed in claims 1-5, wherein the interlayer separation of said intercalated clay is greater than 0.6 nm.
Claim 8
Dependent Claim 25 words
A clay composition as claimed in claims 1-5, wherein the intercalated clay has a nitrogen BET surface area of 20 to 500 m 2 /g.
Claim 9
Dependent Claim 106 words
A process for preparing a clay composition comprising clay having silica pillars intercalated between the interlayers of said clay, wherein said silicon pillars comprise at least two silicon atom layers, which process comprises contacting a smectite type clay with a solution of a polyhedral oligosilsesquioxane of the following general formula (ZSiO 1.5 ) n (OSiZ 2 ) m , where n and m are zero or integers and n + m does not equal zero and Z is an organic moiety containing an atom(s) possessing cationic and/or coordinating characteristics with the proviso that all of the Z's on a particular oligosilsesquioxane need not be the same.
Claim 10
Dependent Claim 106 words
A process for preparing a clay composition comprising clay having silica pillars intercalated between the interlayers of said clay, wherein said silicon pillars comprise at least two silicon atom layers, which process comprises contacting a smectite type clay with a solution of a polyhedral oligosilsesquioxane of the following general formula (ZSiO 1.5 ) n (OSiZ 2 ) m , where n and m are zero or integers and n + m does not equal zero and Z is an organic moiety containing an atom(s) possessing cationic and/or coordinating characteristics with the proviso that all of the Z's on a particular oligosilsesquioxane need not be the same.
Claim 11
Dependent Claim 17 words
A process as claimed in claim 8, wherein n + m ranges from 4 to about 12.
Claim 12
Dependent Claim 31 words
A process as claimed in claims 8 or 9, wherein the organic material in said intercalated clay is removed by heating to a temperature ranging from 100 °C to 800 °C.
Claim 13
Dependent Claim 35 words
A process as claimed in claim 10, wherein the organic material of said intercalated clay is removed by heating in an oxygen- or steam-containing atmosphere at a temperature ranging from 400 °C to 800 °C.
Claim 14
Dependent Claim 20 words
A hydrocarbon conversion catalyst comprising the silica intercalated clay product as claimed in claims 1-7, admixed with a matrix material.
Claim 15
Dependent Claim 29 words
An adsorbent comprising the silica intercalated clay product as claimed in claims 1-7, ground into particles of a Tyler mesh size range of 4 to 400 or spray dried.
Claim 16
Dependent Claim 24 words
A hydrocarbon conversion catalyst, comprising the silica intercalated clay product as claimed in claims 1-7, functionalized with a Group VIII metal, W or Mo.
Claim 17
Dependent Claim 37 words
A hydrocarbon conversion catalyst, comprising the silica intercalated clay as claimed in claims 1-7, functionalized with a cation selected from the group consisting of hydrogen, ammonium, Group IB to VIII of the Periodic Table and mixtures thereof.
Claim 18
Dependent Claim 29 words
A cracking catalyst comprising the silica intercalated clay product as claimed in claims 1-7, functionalized with ions selected from the group consisting of hydrogen and the rare earth elements.
Claim 19
Dependent Claim 15 words
A hydrocarbon conversion catalyst comprising the silica intercalated clay product as claimed in claims 1-7.

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