Patent EP0150897A2 successfully refreshed from Google Patents.
EP0150897A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Novel layered clays, process for their production and uses thereof
Assignee: BP PLC
•
Filing: 1985-01-03
•
Granted: —
•
Expires: 2005-01-03
Abstract
Abstract The invention provides a silanised layered clay comprising a layered clay chemically modified by incorporation therein of a silicon-containing residue in the absence of a polymeric cationic hydroxy inorganic metal complex. The silanised layered clays are produced by hydrolysing a hydrolysable silicon compound, for example a tetraalkoxysilane, in the presence of the layered clay and in the absence of a polymeric cationic hydroxy inorganic metal complex. The resulting silanised layered clays are more thermally and/or hydrothermally stable than the layered clays from which they are derived.
Inventors
- 👤 Martin Philip Atkins
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 07:51
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/049; B01J21/00; B01J21/16; C; C07; C07C; C07C2/00; C07C2/54; C07C2/64; C07C2/66; C07C41/00; C07C41/01; C07C41/02; C07C41/03; H; H03; H03K; H03K17/00; H03K17/16; H03K19/00; H03K19/003; H03K19/00346; C07C2529/00; C07C2529/04; C07C2529/05
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
28 words
A silanised layered clay comprising a layered clay chemically modified by incorporation therein of a silicon-containing residue in the absence of a polymeric cationic hydroxy inorganic metal complex.
Claim 2
Dependent Claim
28 words
A silanised layered clay comprising a layered clay chemically modified by incorporation therein of a silicon-containing residue in the absence of a polymeric cationic hydroxy inorganic metal complex.
Claim 3
Dependent Claim
36 words
A process for the production of a silanised layered clay which process comprises hydrolysing in the presence of a layered clay a hydrolysable silicon compound in the absence of a polymeric cationic hydroxy inorganic metal complex.
Claim 4
Dependent Claim
36 words
A process for the production of a silanised layered clay which process comprises hydrolysing in the presence of a layered clay a hydrolysable silicon compound in the absence of a polymeric cationic hydroxy inorganic metal complex.
Claim 5
Dependent Claim
13 words
A process according to claim 2 wherein the layered clay is a smectite.
Claim 6
Dependent Claim
28 words
A process according to either claim 2 or claim 3 wherein the hydrolysable silicon compound is a tetraalkoxysilane, wherein the alkoxy groups are either the same or different.
Claim 7
Dependent Claim
11 words
A process according to claim 4 wherein the tetraalkoxysilane is tetraethoxysilane.
Claim 8
Dependent Claim
51 words
A process according to any one of claims 2 to 5 wherein hydrolysis of the hydrolysable silicon compound is achieved by contacting the compound in the liquid phase with a hydrolysing agent in the presence of the layered clay under conditions which do not impair the layered structure of the clay.
Claim 9
Dependent Claim
44 words
A process according to any one of claims 2 to 5 wherein hydrolysis of the hydrolysable silicon compound is achieved by contacting the compound in the vapour phase with the layered clay under conditions which do not impair the layered structure of the clay.
Claim 10
Dependent Claim
28 words
A process according to any one of claims 2 to 7 wherein the silanised layered clay is heated to a temperature in the range from 250 to 350°C.
Claim 11
Dependent Claim
16 words
A silanised layered clay when used as a catalyst in reactions which are catalysed by protons.
Claim 12
Dependent Claim
16 words
A silanised layered clay when used as a catalyst in reactions which are catalysed by protons.
Claim 13
Dependent Claim
22 words
A silanised layered clay when used as a catalyst in a process for the conversion of synthesis gas to hydrocarbons and/or alcohols.
Claim 14
Dependent Claim
22 words
A silanised layered clay when used as a catalyst in a process for the conversion of synthesis gas to hydrocarbons and/or alcohols.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.