A process for the preparation of N-(dialkylaminoalkyl)-carbamic acid esters, in particular (propyl N-[3-(dimethylamino)propyl] carbamate) comprising an oxidative carbonylation reaction of a compound of general structure (II) ##STR00001##
wherein each of R.sub.1 and R.sub.2, equal to or different from each other, are independently selected from an alkyl group having 1 to 10 carbon atoms, which is optionally substituted by at least one halogen atom, an aryl group or an aralkyl group; R.sub.3 is selected from an alkyl group having 1 to 36 carbon atoms, which is optionally substituted by at least one halogen atom, an aryl group or an aralkyl group; each of R, R and R.sub.4, equal to or different from each other, are independently selected from H, an alkyl group having 1 to 10 carbon atoms, which is optionally substituted by at least one halogen atom, an aryl group or an aralkyl group; and n is an integer in the range from 1 to 8, with a hydroxyl compound of general formula (III), R.sub.3OH (III) and in the presence of a catalyst system.

Process for hydroformylation of olefins using Pt and bromine.

Process for hydroformylation of olefins using Pt and bromine.

A process of making an aromatization catalyst comprising: (a) mixing a zeolite, a binder, and water to form a mixture; (b) extruding the mixture to form a green extrudate; (c) drying the green extrudate to form a dried green extrudate; (d) calcining the dried green extrudate to form a support, wherein calcining the dried green extrudate is the only calcination step in the process; (e) washing the support to form a washed support; (f) drying the washed support to form a dried washed support; (g) impregnating the dried washed support with a Group 8-10 transition metal compound and at least one halide-containing compound to form a metalized-halided material; and (h) vacuum drying the metalized-halided material to form a dried metalized-halided material which is the aromatization catalyst.

A process of making an aromatization catalyst comprising: (a) mixing a zeolite, a binder, and water to form a mixture; (b) extruding the mixture to form a green extrudate; (c) drying the green extrudate to form a dried green extrudate; (d) calcining the dried green extrudate to form a support, wherein calcining the dried green extrudate is the only calcination step in the process; (e) washing the support to form a washed support; (f) drying the washed support to form a dried washed support; (g) impregnating the dried washed support with a Group 8-10 transition metal compound and at least one halide-containing compound to form a metalized-halided material; and (h) vacuum drying the metalized-halided material to form a dried metalized-halided material which is the aromatization catalyst.

A bi-modal radial flow reactor comprising: a cylindrical outer housing surrounding at least five cylindrical, concentric zones, including at least three annulus vapor zones including an outer annulus vapor zone, a middle annulus vapor zone, and a central annulus vapor zone, and at least two catalyst zones, including an outer catalyst zone and an inner catalyst zone, wherein the outer catalyst zone is intercalated with the outer annulus vapor zone and the middle annulus vapor zone, and wherein the inner catalyst zone is intercalated with the middle annulus vapor zone and the central annulus vapor zone; and a manifold configured to introduce a feed vertically into a bottom end of each of one or two of the at least three annulus vapor zones, and remove a product from a bottom end of each of the one or two remaining of the at least three annulus vapor zones.

Process for preparing the dialdehyde of vinylcyclohexene

Process for preparing the dialdehyde of vinylcyclohexene

Disclosed is an electrochemical method for continuous regeneration of a Pt.sup.IV oxidant to furnish overall electrochemical methane oxidation. Cl-adsorbed Pt electrodes catalyze facile oxidation of Pt.sup.II to Pt.sup.IV without concomitant methanol oxidation. Exploiting this electrochemistry, the Pt.sup.II/IV ratio in solution is maintained via in situ monitoring of the solution potential coupled with dynamic modulation of the electric current. Remarkably, this method leads to sustained methane oxidation catalysis with 70% selectivity for methanol.

Disclosed is an electrochemical method for continuous regeneration of a Pt.sup.IV oxidant to furnish overall electrochemical methane oxidation. Cl-adsorbed Pt electrodes catalyze facile oxidation of Pt.sup.II to Pt.sup.IV without concomitant methanol oxidation. Exploiting this electrochemistry, the Pt.sup.II/IV ratio in solution is maintained via in situ monitoring of the solution potential coupled with dynamic modulation of the electric current. Remarkably, this method leads to sustained methane oxidation catalysis with 70% selectivity for methanol.