Abstract: Process for the preparation of ammonia comprising contacting ammonia synthesis gas with one or more catalysts, at least one catalyst having supported ruthenium as the active catalytic material supported on a nitride on a secondary support. A catalyst for use in the above process is provided.

Abstract: A rhenium (IV) sulphide (ReS2) nanotube material and a method of preparation of the rhenium (IV) sulphide (ReS2) nanotube material. The rhenium (IV) sulphide (ReS2) nanotube material comprises hollow cylinders of concentric rhenium (IV) sulphide layers, the ReS2 interlayer distance being between 0.5 to 0.7 nm. Each ReS2 layer consists of a layer of rhenium atoms sandwiched between two layers of sulfur atoms.

Abstract: The invention concerns a process for the immobilization of a homogeneous catalyst comprising immobilizing the homogeneous catalyst in zeotype crystals with a non-crystallographic mesopore system and a mesopore volume of the zeotype crystals above 0.25 ml/g. The invention also concerns a catalytic material prepared by the immobilization process.

Abstract: Process for the preparation of ammonia by contacting an ammonia synthesis gas with ammonia catalyst particles arranged in a fixed bed, wherein the fixed bed comprises catalyst particles of the ammonia catalyst with a particle size being in the range of <1.5 mm and ≧2.2 mm.

Abstract: Process for the preparation of ammonia from ammonia synthesis gas by contacting the synthesis gas with ammonia forming conditions with a catalyst comprising ruthenium as the active catalytic material supported on a carrier of boron nitride and/or silicon nitride.

Abstract: Process for the preparation of ammonia comprising contacting ammonia synthesis gas with one or more catalysts, at least one catalyst having supported ruthenium as the active catalytic material supported on a nitride on a secondary support. A catalyst for use in the above process is provided.

Abstract: A catalyst active in ammonia synthesis with improved activity and a process for the recovery of useful components from the catalyst.

Abstract: Method of preparing zeolite single crystals with straight mesopores by applying a synthesis gel with zeolite precursor composition within the pore system and on the surface of a particulate matrix material template of carbon comprising the steps of: providing a templating material with a diameter of 2 to 50 nanometers and a length-to-diameter aspect ratio of at least 5, applying the zeolite precursor to the surface of the templating material using sequential impregnation, subjecting the precursor composition to crystallising conditions, and isolating porous single zeolite crystals with straight mesopores by removing the matrix template material.

Abstract: A catalyst active in ammonia synthesis with improved activity and a process for the recovery of useful components from the catalyst.

Abstract: The invention concerns a process for the immobilisation of a homogeneous catalyst comprising immobilising the homogeneous catalyst in zeotype crystals with a non-crystallographic mesopore system and a mesopore volume of the zeotype crystals above 0.25 ml/g. The invention also concerns a catalytic material prepared by the immobilisation process.

Abstract: Method of preparing zeolite single crystals comprising the step of: applying a synthesis gel with zeolite precursor composition within pore system and on surface of a particulate matrix material having a predetermined pore structure and particle size; subjecting the precursor composition to crystallising conditions; and isolating porous single crystals of the zeolite by removing the matrix material.

Abstract: A catalyst active in ammonia synthesis with improved activity and a process for the recovery of useful components from the catalyst.

Abstract: Process for the preparation of ammonia from ammonia synthesis gas by contacting the synthesis gas with ammonia forming conditions with a catalyst comprising ruthenium as the active catalytic material supported on a carrier of boron nitride and/or silicon nitride.

Abstract: Process for the preparation of ammonia from ammonia synthesis gas by contacting the synthesis gas with ammonia forming conditions with a catalyst comprising ruthenium as the active catalytic material supported on a carrier of boron nitride and/or silicon nitride.

Abstract: Processes applying mesoporous titanium containing zeolite based catalysts for selective oxidation or epoxidation of hydrocarbons by peroxides.

Abstract: Process for catalytic steam reforming of a carbonaceous feedstock with improved resistance to sulphur poisoning and sintering characterized by contacting the feedstock with a nickel catalyst supported on magnesium aluminum spinel, MgO·xAl2O3, wherein the spinel support has a specific surface area Asp[m2/g] higher than 400·exp(−Tc/400° C.) obtained by calcination at a temperature Tc[° C.].

Abstract: Processes applying mesoporous titanium containing zeolite based catalysts for selective oxidation or epoxidation of hydrocarbons by peroxides.

Abstract: Method of preparing zeolite single crystals with straight mesopores by applying a synthesis gel with zeolite precursor composition within the pore system and on the surface of a particulate matrix material template of carbon comprising the steps of:

Abstract: A method for the preparation of small zeotype crystals with controlled sizes comprising the steps of synthesizing inside a porous material having a majority of pores less than 1000 Å a synthesis gel consisting essentially of (a) a zeotype precursor composition comprising hydratized oxides of Si, Al and P and metal compounds (b) a zeolite template; and heating or autoclaving the porous support material containing synthesis gel, whereby zeotype crystals are formed; and rinsing and drying the porous support material containing zeotype crystals.

Abstract: Process for the preparation of ammonia from ammonia synthesis gas by contacting the synthesis gas with a bimetallic catalyst comprising a Group VIII metal combined with a Group VIB metal at conditions being effective in the formation of ammonia, wherein the bimetallic catalyst is in its nitride form during contact with the synthesis gas.