EP0092858A2
Expired / Lapsed
EP
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Process for the preparation of a catalytically active metal silicate
Assignee: Shell Internationale Research Maatschappij BV
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Filing: 1983-03-31
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Granted: —
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Expires: 2003-03-31
Abstract
Abstract The activity of nickel synthetic mica-montmorillonite (Ni-SMM) for hydrocarbon conversions (e.g. cracking and isomerization) is improved by an after-treatment with a releasable active halogen other than fluorine; preferably with hydrochloric acid. Preferably the catalyst contains palladium.
Inventors
- 👤 Jacobus Johannes Leonardus Heinerman
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 01:58
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/16; B01J23/00; B01J23/70; B01J23/74; B01J23/755; B01J23/89; B01J23/892; C; C07; C07C; C07C5/00; C07C5/22; C07C5/27; C07C5/2767; C07C5/277; C07C5/2791
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
94 words
A process for the preparation of a catalytically active metal silicate, characterized in that an at least partly crystalline metal silicate having a crystal lattice which consists substantially of a triplex layer structure, containing in the central layer octahedrally co-ordinated aluminium which may be entirely or partly substituted by one or more metals from Group 8 of the Periodic Table of elements, and in the two outer layers tetrahedrally co-ordinated silicon which may be entirely or partly substituted by aluminium, is treated with one or more compounds comprising releasable active halogen other than fluorine.
Claim 2
Dependent Claim
94 words
A process for the preparation of a catalytically active metal silicate, characterized in that an at least partly crystalline metal silicate having a crystal lattice which consists substantially of a triplex layer structure, containing in the central layer octahedrally co-ordinated aluminium which may be entirely or partly substituted by one or more metals from Group 8 of the Periodic Table of elements, and in the two outer layers tetrahedrally co-ordinated silicon which may be entirely or partly substituted by aluminium, is treated with one or more compounds comprising releasable active halogen other than fluorine.
Claim 3
Dependent Claim
39 words
A process as claimed in claim 1, characterized in that the metal silicate is treated with a compound which comprises chlorine and which compound can further release, optionally after a heat treatment, one or more protons and/or hydrogen chloride.
Claim 4
Dependent Claim
21 words
A process as claimed in claim 2, characterized in that the compound comprises chlorine-containing acid and/or hydrocarbylammonium chloride and/or ammonium chloride.
Claim 5
Dependent Claim
15 words
A process as claimed in claim 3, characterized in that the compound contains hydrochloric acid.
Claim 6
Dependent Claim
28 words
A process as claimed in claim 1, characterized in that the metal silicate consists at least partly of synthetic mica-montmorillonite in which aluminium is partly substituted by nickel.
Claim 7
Dependent Claim
23 words
A process as claimed in claim 5, characterized in that the catalytically active metal silicate contains of from 20 to 36 %w nickel.
Claim 8
Dependent Claim
20 words
A process as claimed in claim 4, characterized in that 15-25 %w of the hydrochloric acid consists of hydrogen chloride.
Claim 9
Dependent Claim
25 words
A process as claimed in any one or more of claims 4-7, characterized in that the metal silicate is calcined after the hydrochloric acid treatment.
Claim 10
Dependent Claim
25 words
A process as claimed in claim 8, characterized in that after calcination the catalytically active metal silicate contains of from 0.2 to 2 %w chlorine.
Claim 11
Dependent Claim
39 words
A process as claimed in any one or more of the preceding claims, characterized in that the metal silicate is loaded with one or more noble metals from Group 8 of the Periodic Table of Elements and/or compounds thereof.
Claim 12
Dependent Claim
26 words
A process as claimed in claim 10, characterized in that the metal silicate is loaded with 0.05-5 %w of palladium, calculated on total quantity of catalyst.
Claim 13
Dependent Claim
33 words
A process as claimed in any one or more of the preceding claims, characterized in that the metal silicate is cross-linked by mixing with aluminium hydroxychloride and subsequently heating to at most 600°C.
Claim 14
Dependent Claim
26 words
A process for the preparation of a catalytically active metal silicate as claimed in claim 4, substantially as described hereinbefore, with particular reference to Example 1.
Claim 15
Dependent Claim
36 words
A process for the catalytic conversion of hydrocarbons in the presence of hydrogen, characterized in that the catalyst used therein is a catalytically active metal silicate prepared according to one or more of the preceding claims.
Claim 16
Dependent Claim
41 words
A process as claimed in claim 14, characterized in that before the conversion is started the catalyst is activated by means of a hydrotreatment carried out at a temperature of from 150°C to 600°C and preferably of from 300°C to 450°C.
Claim 17
Dependent Claim
65 words
A process as claimed in claim 14 or 15, characterized in that paraffins with 4-7 carbon atoms are catalytically isomerized in the presence of hydrogen at a temperature between 150 and 300°C; a space velocity between 0.2 and 20 kg of paraffins/kg of catalyst/hour; a hydrogen:paraffin molar ratio in the range of from 0.5:1 to 50:1 and an overall pressure between 1 and 70 bar.
Claim 18
Dependent Claim
28 words
A process for the catalytic conversion of hydrocarbons in the presence of hydrogen as claimed in claim 14, substantially as described hereinbefore with particular reference to Example 2.
References Cited (Backward Citations)
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