System and process for uniform distribution of liquid organic substance in thin layer form in a falling film reactor, defined by a plurality of tubes. It is contemplated to feed the same amount of liquid organic substance to all tubes and then distribute it uniformly as a thin layer on the perimeter of each tube and by two coupled plates and sheet interposed therebetween; the lower plate is machined to create a groove and a spillway around each hole, a slit of constant thickness.

Embodiments of the present disclosure provide for substrates having an oxide shell layer (e.g., a silica shell layer), methods of making an oxide shell layer, and the like.

Embodiments of the present disclosure provide for substrates having an oxide shell layer (e.g., a silica shell layer), methods of making an oxide shell layer, and the like.

Elevated temperature liquid testing apparatus and methodology in which a thin film of test liquid and a reactant/control gas are provided about the top of a depositor member that is surrounded by a special mantle, for example, a substantially cylindrically walled glass mantle. As an oxidative engine oil test, it may mimic turbocharger conditions of a modern internal combustion engine. For example, employing moist air, the apparatus can test a thin film of engine oil for oxidation deposits at a predetermined temperature, say, 285 C., 290 C., or cycled between 285 C. or 290 C. and 320 C. or 330 C.

The disclosure relates to a method of performing ozonolysis or ozone-based oxidation on a liquid or emulsified reagent using a tubular falling firm reactor with one or multiple tubes wherein the combined ozone and carrier gas flow is co-current.

A method for isolating a phenylene ether oligomer composition includes feeding a solution including a solvent and a phenylene ether oligomer into a thin film evaporator, forming a film on an interior surface of the thin film evaporator, and heating to devolatilize the solvent from the film, to provide a phenylene ether oligomer composition. The thin film evaporator includes cylindrical heating chamber and a rotor having one or more rotor blades, wherein an edge of the one or more rotor blades and the interior surface of the cylindrical heating chamber are separated by a distance of 0.5 to 3.5 millimeters. Phenylene ether oligomer compositions are also described.

A method for isolating a phenylene ether oligomer composition includes feeding a solution including a solvent and a phenylene ether oligomer into a thin film evaporator, forming a film on an interior surface of the thin film evaporator, and heating to devolatilize the solvent from the film, to provide a phenylene ether oligomer composition. The thin film evaporator includes cylindrical heating chamber and a rotor having one or more rotor blades, wherein an edge of the one or more rotor blades and the interior surface of the cylindrical heating chamber are separated by a distance of 0.5 to 3.5 millimeters. Phenylene ether oligomer compositions are also described.

The disclosure relates to a method of performing ozonolysis or ozone-based oxidation on a liquid or emulsified reagent using a tubular falling film reactor with one or multiple tubes wherein the combined ozone and carrier gas flow is co-current.

The disclosure relates to a method of performing ozonolysis or ozone-based oxidation on a liquid or emulsified reagent using a tubular falling film reactor with one or multiple tubes wherein the combined ozone and carrier gas flow is co-current.

A phenylene ether oligomer composition is disclosed comprising, a phenylene ether oligomer having an external amine content of less than or equal to 1.5 weight percent; and a residual solvent in an amount of 10 to 10000 parts per million by weight, based on the weight of the phenylene ether oligomer composition; wherein the phenylene ether oligomer composition has an intrinsic viscosity of 0.03 to 0.13 deciliter per gram; a glass transition temperature of 135 to 175 C., or a combination thereof.