Abstract: A CO shift catalyst comprises the calcined form of a precursor of the approximate formula, the precursor having a layer structure(Cu+Zn).sub.6 Al.sub.x R.sub.y (CO.sub.3).sub.(x+y/2 OH.sub.12+2(x+Y) nH.sub.2 OwhereR is lanthanum, cerium or zirconiumx is not less than 1 and not greater than 4;y is not less than 0.01 and not greater than 1.5n is approximately 4.

Abstract: The invention relates to a nickel containing catalyst composition of high thermal stability and which has outstanding resistance to carbon deposition, and is particularly but not exclusively for use in the steam reforming of hydrocarbons. The object of the invention is to provide an improved catalyst, which object is met by a catalyst derived from a precursor of approximate chemical compositionNi.sub.6 Al.sub.x La.sub.y (CO.sub.3).sub.(x+y)/2 (OH).sub.12+2(x+y) nH.sub.2 Owhere x is not less than 1 and not greater than 4; y is not less than 0.05 and not greater than 1.5 and n is approximately 4.

Abstract: An improved catalyst for the high temperature steam reforming of hydrocarbons is provided. The method of preparing the catalyst includes the steps of: (1) impregnating a ceramic matrix with a solution containing soluble salts of the catalytic components and a delayed precipitating agent; (2) removing the matrix from the solution; (3) draining the matrix; (4) heating the matrix to a temperature suitable for the controlled hydrolysis of the precipitation agent, thus increasing the pH of the absorbed solution and bringing about deposition of the insoluble hydroxides within the pores; (5) calcining the precipitate within the pores to a mixture of the oxides; and (6) reducing the oxides.

Abstract: The invention relates to electrodes, particularly for glass furnaces and is concerned with means for forming good electrical contact between the electrode body and a source of electrical supply, which avoid the problems with known electrodes.

Abstract: A nickel containing catalyst composition of high thermal stability and outstanding resistence to carbon deposition is provided for use in the steam reforming of hydrocarbons. The catalyst is derived from a precursor having lanthanum ions incorporated into a layer structure by means of coprecipitation from a solution containing soluble salts of the catalytically active components. The precursor is of approximate chemical composition Ni.sub.6 Al.sub.x La.sub.y (CO.sub.3).sub.x+y /2(OH).sub.12+2(x+y) nH.sub.2 O. A range of atomic ratios for the component is disclosed. Additional embodiments of the precursor are disclosed wherein anions other than carbonate are present and various proportions of the nickel content are replaced by magnesium.

Abstract: The invention relates to the units of a pouring system for uphill teeming. Conventionally, such units are formed by a pouring trumpet having a two-part heavy duty iron casing, and by runners set in channels in a heavy cast iron base plate, requiring skillful assembly on site. When unskilled personnel are utilized there is frequently incorrect assembly and positioning, leading to jointing and cracking, faults which in turn leads to molten metal penetration during pouring with consequent damage to the cast iron casing of the trumpet and the case iron base plate with the inherent danger of a complete break-out. The objective of the invention is to alleviate the problems outlined above, that objective being met by providing the units of a pouring system for uphill teeming each comprising an outer casing, an inner refractory liner and a refractory insulating material between the outer casing and the inner liner, each unit being pre-assembled as a complete unit for delivery to a casting bay.