Abstract:
A Fischer-Tropsch catalyst comprises cobalt or iron on a support which is carbon having a BET surface area of at least 100 m /g, ratio of BET to basal plane surface area not greater than 4:1 and a ratio of basal plane surface area to edge surface area of at least 10:1.
Abstract:
Benzylic and aromatic mercaptans are desulphurised by contacting the mercaptan with carbon monoxide at elevated temperatures in the presence of an aqueous hydrocarbon and a cobalt carbonyl catalyst.
Abstract:
Process for production of synthesis gas in which a saturated hydrocarbon and an oxygen containing gas having a ratio of hydrocarbon to oxygen of greater than the stoichiometric ratio for complete combustion are introduced into a bed of particulate material. The bed comprises material which is catalytically active for partial oxidation and/or steam reforming reactions. The upward flow rate of the hydrocarbon/oxygen containing gas stream is sufficiently large to cause a spouting action of the bed material. The hydrocarbon and oxygen react together and the products of the reaction are withdrawn.
Abstract:
Silanised pillared interlayered clays which are produced by hydrolysing a hydrolysable silicon compound in the liquid or vapour phase in the presence of a pillared interlayered clay or a precursor thereof. The resulting silanised clays are more active as catalysts and/or more stable than the clays from which they are derived.
Abstract:
Novel composite conductors comprising interpenetrating networks of a continuous electronic conducting material and a continuous ionic conducing material. Also provided is a method of producing films of the same.
Abstract:
Crystalline galloaluminosilicates having an X-ray diffraction pattern substantially the same as that of an MFI-zeolite and a composition in terms of mole ratios of oxides as follows: 0.9 ↓∃0.2M2/n0.Al203. a Ga203. b SiO2.zH2O wherein M is a cation, n is the valence of the cation, a has a value between 0.0001 and 2, b has a value of at least 12 and z has a value of from 0 to 40. A process for the production of the crystalline galloaluminosilicates which comprises crystallising at elevated temperature a gel comprising (i) a source of silica (SiO2), (ii) a source of alumina (Al2O3), (iii) a source of gallia (Ga2O3), (iv) a mineralising agent selected from oxides, hydroxides and salts of alkali and alkaline earth metals (X2/nO wherein n is the valency of X), (v) an organic base (B) and (vi) ROH wherein R is H and/or lower alkyl, in the following molar proportions:$(5,)$SiO2:X2/nO=1000:1 to 50:1, SiO2:B=50:1 to 1:20, SiO2:ROH=less than 1:10, Al2O3: Ga203=500:1 to 1:100. Ion-exchanged forms, calcinated forms and steam-treated forms ofthe crystalline galloaluminosilicates are also described. Such materials can be used as catalysts and catalyst supports. The steam-treated form is particularly useful as a catalyst for the production of aromatic hydrocarbons from C2 to C12 hydrocarbon feedstocks.
Abstract:
Mixtures of tetrahydrofurane with at least one of benzyl alcohol, diethyl sebacate, or quinoline are useful as working fluids in absorption refrigerating machines.
Abstract:
Mixtures of trifluoroethanol and at least one of sulfolane, 3-methylsulfolane, ethylene-, diethylene-, triethylene- or tetratethylene glycol, tri- or tetraethylene glycol dimethylether, di- or tripropylene glycol, di- or tripropylene glycol dimethyl ether.