Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
70 words
A catalyst composition suitable for use in a process for the production of hydrocarbons from synthesis gas which composition comprises the essential metals: (a) ruthenium and at least one of iron, cobalt, and nickel, and (b) at least one of lithium, sodium, potassium, calcium and magnesium supported on silicalite, the metals [(a)+(b)] being present on the silicalite support in an amount in the range from 0.5 to 15% by weight.
Claim 2
Dependent Claim
70 words
A catalyst composition suitable for use in a process for the production of hydrocarbons from synthesis gas which composition comprises the essential metals: (a) ruthenium and at least one of iron, cobalt, and nickel, and (b) at least one of lithium, sodium, potassium, calcium and magnesium supported on silicalite, the metals [(a)+(b)] being present on the silicalite support in an amount in the range from 0.5 to 15% by weight.
Claim 3
Dependent Claim
19 words
A catalyst composition according to claim 1 additionally incorporating one or more of the metals thorium, zirconium and manganese.
Claim 4
Dependent Claim
17 words
A catalyst composition according to claim 1 comprising the metals iron, ruthenium and potassium supported on silicalite.
Claim 5
Dependent Claim
147 words
A catalyst composition suitable for use in a process for the production of hydrocarbons from synthesis gas which composition comprises the essential metals: (a) ruthenium and at least one of iron, cobalt, and nickel, and (b) at least one of lithium, sodium, potassium, calcium and magnesium supported on silicalite, the metals [(a)+(b)] being present on the silicalite support in an amount in the range from 0.5 to 15% by weight, modified by combination with the hydrogen form of a crystalline zeolite having the composition expressed as mole ratios of oxides: 0.9±0.2M.sub.2 /.sub.n O:W.sub.2 O.sub.3 :20 to 50 YO.sub.2 :zH.sub.2 O wherein M is at least one cation, n is the valence thereof, W is aluminium and/or gallium, Y is silicon and/or germanium and z has a value of 0 to 40, said zeolite being characterised by an XRD pattern which is substantially that of an MFI-type zeolite.
Claim 6
Dependent Claim
147 words
A catalyst composition suitable for use in a process for the production of hydrocarbons from synthesis gas which composition comprises the essential metals: (a) ruthenium and at least one of iron, cobalt, and nickel, and (b) at least one of lithium, sodium, potassium, calcium and magnesium supported on silicalite, the metals [(a)+(b)] being present on the silicalite support in an amount in the range from 0.5 to 15% by weight, modified by combination with the hydrogen form of a crystalline zeolite having the composition expressed as mole ratios of oxides: 0.9±0.2M.sub.2 /.sub.n O:W.sub.2 O.sub.3 :20 to 50 YO.sub.2 :zH.sub.2 O wherein M is at least one cation, n is the valence thereof, W is aluminium and/or gallium, Y is silicon and/or germanium and z has a value of 0 to 40, said zeolite being characterised by an XRD pattern which is substantially that of an MFI-type zeolite.
Claim 7
Dependent Claim
16 words
A modified catalyst composition according to claim 4 wherein W is aluminium and Y is silicon.
Claim 8
Dependent Claim
33 words
A modified catalyst composition according to claim 4 wherein the ratio of the silicalite supported portion to the hydrogen form of the crystalline zeolite portion is in the range from 10:1 to 1:10.
Claim 9
Dependent Claim
27 words
A modified catalyst composition according to claim 4 comprising the metals iron, ruthenium and potassium supported on silicalite and the hydrogen form of an MFI-type crystalline aluminosilicate.
Claim 10
Dependent Claim
66 words
A method for producing the modified catalyst composition as claimed in claim 4 which method comprises mixing that portion of the catalyst comprising the metals (a) and (b) and optionally (c) supported on silicalite with the ammonium ion-exchanged form of the crystalline zeolite of defined composition and XRD pattern and, after mixing, decomposing the ammonium ion-exchanged form of the crystalline zeolite to produce the hydrogen form.
Claim 11
Dependent Claim
63 words
A catalyst composition suitable for use in a process for the production of hydrocarbons from synthesis gas which composition comprises the essential metals: (a) iron and ruthenium, and (b) at least one of lithium, sodium, potassium, calcium and magnesium supported on silicalite, the metals [(a)+(b)] being present on the silicalite support in an amount in the range from 0.5 to 15% by weight.
Claim 12
Dependent Claim
63 words
A catalyst composition suitable for use in a process for the production of hydrocarbons from synthesis gas which composition comprises the essential metals: (a) iron and ruthenium, and (b) at least one of lithium, sodium, potassium, calcium and magnesium supported on silicalite, the metals [(a)+(b)] being present on the silicalite support in an amount in the range from 0.5 to 15% by weight.