Abstract: The present invention relates to processes for preparing propylene oxide, comprising reaction of propene with ethylbenzene hydroperoxide in the presence of a catalyst, as well as to catalysts employed in such processes and to methods for their manufacture. The catalysts of the invention are prepared in a process comprising sol-gel-synthesis of catalyst hydrogel-precursor, drying of catalyst hydrogel precursor, calcining of dried catalyst hydrogel-precursor, and optionally hydrophobizing the calcined catalyst hydrogel-precursor. The catalysts of the invention comprise amorphous titanium doped silica comprising pentahedrally coordinated titanium species.

Abstract: The present invention relates to catalytically active material, comprising grains of non-graphitizing carbon with nickel nanoparticles dispersed therein, wherein dp, the average diameter of nickel nanoparticles in the non-graphitizing carbon grains, is in the range of 1 nm to 20 nm, D, the average distance between nickel nanoparticles in the non-graphitizing carbon grains, is in the range of 2 nm to 150 nm, and ?, the combined total mass fraction of metal in the non-graphitizing carbon grains, is in the range of 30 wt % to 70 wt % of the total mass of the non-graphitizing carbon grains, and wherein dp, D and ? conform to the following relation: 4.5 dp/?>D?0.25 dp/?. The present invention, further, relates to a process for the manufacture of material according to the invention, as well as its use as a catalyst.

Abstract: The present invention relates to processes for the selective production of propanal from methanol, carbon monoxide and hydrogen, using heterogeneous catalysts comprising one or more transition metals selected from Co, Ni, Cu, Fe, Mn, Mo, W, Ru, Re, Rh, and carbon, exhibiting a structure selected from graphitic, carbidic, aromatic or amorphous non-graphitizing.

Abstract: The present invention relates to catalytically active material, comprising grains of non-graphitizing carbon with cobalt nanoparticles dispersed therein, wherein dp, the average diameter of cobalt nanoparticles in the non-graphitizing carbon grains, is in the range of 1 nm to 20 nm, D, the average distance between cobalt nanoparticles in the non-graphitizing carbon grains, is in the range of 2 nm to 150 nm, and ?, the combined total mass fraction of metal in the non-graphitizing carbon grains, is in the range of 30 wt % to 70 wt % of the total mass of the non-graphitizing carbon grains, and wherein dp, D and ? conform to the following relation: 4.5 dp/??D?0.25 dp/?. The present invention, further, relates to a process for the manufacture of material according to the invention, as well as its use as a catalyst.

Abstract: The present invention relates to catalytically active material, comprising grains of non-graphitizing carbon with iron nanoparticles dispersed therein, wherein dp, the average diameter of iron nanoparticles in the non-graphitizing carbon grains, is in the range of 1 nm to 20 nm, D, the average distance between iron nanoparticles in the non-graphitizing carbon grains, is in the range of 2 nm to 150 nm, and ?, the combined total mass fraction of metal in the non-graphitizing carbon grains, is in the range of 30 wt % to 70 wt % of the total mass of the non-graphitizing carbon grains, and wherein dp, D and ? conform to the following relation: 4.5 dp/?>D?0.25 dp/?. The present invention, further, relates to a process for the manufacture of material according to the invention, as well as its use as a catalyst.

Abstract: The present invention relates to catalytically active material, comprising grains of non-graphitizing carbon with nickel nanoparticles dispersed therein, wherein dp, the average diameter of nickel nanoparticles in the non-graphitizing carbon grains, is in the range of 1 nm to 20 nm, D, the average distance between nickel nanoparticles in the non-graphitizing carbon grains, is in the range of 2 nm to 150 nm, and ?, the combined total mass fraction of metal in the non-graphitizing carbon grains, is in the range of 30 wt % to 70 wt % of the total mass of the non-graphitizing carbon grains, and wherein dp, D and ? conform to the following relation: 4.5 dp/?>D?0.25 dp/?. The present invention, further, relates to a process for the manufacture of material according to the invention, as well as its use as a catalyst.

Abstract: The present invention relates to catalytically active material, comprising grains of non-graphitizing carbon with iron nanoparticles dispersed therein, wherein dp, the average diameter of iron nanoparticles in the non-graphitizing carbon grains, is in the range of 1 nm to 20 nm, D, the average distance between iron nanoparticles in the non-graphitizing carbon grains, is in the range of 2 nm to 150 nm, and ?, the combined total mass fraction of metal in the non-graphitizing carbon grains, is in the range of 30 wt % to 70 wt % of the total mass of the non-graphitizing carbon grains, and wherein dp, D and ? conform to the following relation: 4.5 dp/?>D?0.25 dp/?. The present invention, further, relates to a process for the manufacture of material according to the invention, as well as its use as a catalyst.

Abstract: The present invention relates to catalytically active material, comprising grains of non-graphitizing carbon with cobalt nanoparticles dispersed therein, wherein dp, the average diameter of cobalt nanoparticles in the non-graphitizing carbon grains, is in the range of 1 nm to 20 nm, D, the average distance between cobalt nanoparticles in the non-graphitizing carbon grains, is in the range of 2 nm to 150 nm, and ?, the combined total mass fraction of metal in the non-graphitizing carbon grains, is in the range of 30 wt % to 70 wt % of the total mass of the non-graphitizing carbon grains, and wherein dp, D and ? conform to the following relation: 4.5 dp/?>D?0.25 dp/?. The present invention, further, relates to a process for the manufacture of material according to the invention, as well as its use as a catalyst.

Abstract: Polyhedral oligomeric silsesquioxanes (POSS) linked ligand of the general formula (I) L[(R1a)n-1(SiO1,5)nR2a]k[(R1b)n-1SiO1,5)nR2b]l[(R1c)n-1SiO1,5)nR2c]m??(I) in which (R1a,b,c)n-1(SiO1,5)n is a polyhedral oligomeric silsesquioxanes (POSS) with n=4, 6, 8, 10, 12, 14, 16 or 18 and R1a, R1b, R1c is each independently selected from the group consisting of same or different branched or linear C1-C20 alkyl chains, cyclo alkyl, C1-C20 alkoxy, aryl, aryloxy, heteroaryl and arylalkyl groups, k, l, m is 0 or 1 provided that k+l+m?1, R2a, R2b, R2c is a spacer that binds the polyhedral oligomeric silsesquioxane (POSS) to the ligand L and ligand L is an uncharged electron donor.

Abstract: The present invention provides a process for preparing 1,2-pentanediol by reacting furfuryl alcohol with hydrogen in the presence of a catalyst system. The catalyst system contains platinum oxide or contains ruthenium supported on aluminum oxide or activated carbon. The invention also relates to the respective catalysts and processes for producing the catalyst system.

Abstract: Process for preparing higher hydridosilanes of the general formula H—(SiH2)n—H where n?2, in which—one or more lower hydridosilanes—hydrogen, and—one or more transition metal compounds comprising elements of transition group VIII of the Periodic Table and the lanthanides are reacted at a pressure of more than 5 bar absolute, subsequently depressurized and the higher hydridosilanes are separated off from the reaction mixture obtained.

Abstract: Polyhedral oligomeric silsesquioxanes (POSS) linked ligand of the general formula (I) L[(R1a)n-1(SiO1,5)nR2a]k[(R1b)n-1SiO1,5)nR2b]l[(R1c)n-1SiO1,5)nR2c]m??(I) in which (R1a,b,c)n-1(SiO1,5)n is a polyhedral oligomeric silsesquioxanes (POSS) with n=4, 6, 8, 10, 12, 14, 16 or 18 and R1a, R1b, R1c is each independently selected from the group consisting of same or different branched or linear C1-C20 alkyl chains, cyclo alkyl, C1-C20 alkoxy, aryl, aryloxy, heteroaryl and arylalkyl groups, k, l, m is 0 or 1 provided that k+l+m?1, R2a, R2b, R2c is a spacer that binds the polyhedral oligomeric silsesquioxane (POSS) to the ligand L and ligand L is an uncharged electron donor.

Abstract: Process for preparing silylorganoamines, which process comprises the following steps: (A) provision of silylorganoamines of the formula I: [R2a(R1O)3-aSiR3]nNH3-n in a reactor, (B) reaction of the silylorganoamines of the formula I in the presence of particulate metallic noble metal at a temperature in the range from 100° C. to 300° C. to form silylorganoamine products of the formula II: [R2a(R1O)3-aSiR3]yNH3-y, where each radical R1 and each radical R2 is selected independently from the group consisting of alkyl, aryl, aralkyl and cycloalkyl radicals having fewer than 20 carbon atoms; R3 is selected from the group consisting of divalent hydrocarbon radicals having fewer than 20 carbon atoms and a=0, 1, 2 or 3; n=1 or n=2 or n=1 and 2; and y=3.

Abstract: Process for preparing silylorganoamines, which process comprises the following steps: (A) provision of silylorganoamines of the formula I: [R2a(R1O)3-aSiR3]nNH3-n in a reactor, (B) reaction of the silylorganoamines of the formula I in the presence of particulate metallic noble metal at a temperature in the range from 100° C. to 300° C. to form silylorganoamine products of the formula II: [R2a(R1O)3-aSiR3]yNH3-y, where each radical R1 and each radical R2 is selected independently from the group consisting of alkyl, aryl, aralkyl and cycloalkyl radicals having fewer than 20 carbon atoms; R3 is selected from the group consisting of divalent hydrocarbon radicals having fewer than 20 carbon atoms and a=0, 1, 2 or 3; n=1 or n=2 or n=1 and 2; and y=3.

Abstract: Process for preparing higher hydridosilanes of the general formula H—(SiH2)n—H where n?2, in which—one or more lower hydridosilanes—hydrogen, and—one or more transition metal compounds comprising elements of transition group VIII of the Periodic Table and the lanthanides are reacted at a pressure of more than 5 bar absolute, subsequently depressurized and the higher hydridosilanes are separated off from the reaction mixture obtained.

Abstract: Catalyst systems consisting of supported or unsupported transition metal catalysts which have modifiers on the surface. The modifiers have sulphur-containing functionalities (G0). In addition, the modifiers may have a spacer (Sp) and a Bronsted-basic, Bronsted-acidic or Lewis-basic functionality (G1). The catalyst systems may be used for hydrogenation, reductive alkylation and reductive amination.

Abstract: The present invention relates to a process for preparing mercaptoorganyl(alkoxysilanes), by hydrogenating bis(alkoxy-silylorganyl) polysulphides with hydrogen in the presence of at least one alcohol and a doped metal catalyst. The doped metal catalyst comprises at least one substance from the group consisting of iron, iron compound, nickel, nickel compound, palladium, palladium compound, osmium, osmium compound, ruthenium, ruthenium compound, rhodium, rhodium compound, iridium and iridium compound plus at least one doping component.

Abstract: The invention concerns a process for producing mercaptoorganyl(alkoxysilanes), wherein bis(alkoxysilylorganyl)polysulfides are hydrogenated at temperatures of <190° C. and pressures of <100 bar with hydrogen and a transition metal catalyst without the addition of water, alcohol or H2S.

Abstract: The invention relates to a process for the preparation of mercaptoorganyl(alkoxysilanes), wherein bis(alkoxysilylorganyl)polysulfides are hydrogenated with hydrogen and a transition metal catalyst in a solvent without the addition of alcohols, H2S or water.

Abstract: A searchable library of catalysts, wherein each catalyst is defined by a specific performance profile, is created by a series of steps. The first involves the selection of a catalyst, a substrate and at least two different chemical reactions for catalyst characterization. The next involves contacting the catalyst and substrate under conditions suitable for the selected reaction and measuring for each of the selected reactions a reaction parameter, which is associated with catalyst performance. The catalyst performance is then determined and a value assigned. The performance profile is a table including the performance values. The catalyst is then placed into a library, which is searchable based on the performance profile.