Abstract: A device is provided for mixing two fluids, one a liquid, the other a gas, where apertures are provided in channel tubes to mix the fluids in the individual channels. The mixing device provides a two fluid admixture for passage to downstream processing, most preferably the tubeside of a shell and tube heat exchanger. The vessel is equipped with a gas inlet means located below a liquid inlet means with respect to the height of the vertical vessel. A distributor plate is situated substantially perpendicular to said channel or channels at a point in said vessel below said apertures for influx of the liquid into the gas phase. The apparatus provides uniform distribution of gas and liquid to all parallel channels.

Abstract: The invention is a method of introducing an aggressive liquid additive into a vapor-containing process stream including (a) heating the liquid additive by a heating means thereby producing a heated additive; (b) passing the heated additive to an injection quill in fluid communication with the vapor-containing process stream; and (c) passing the heated additive from the injection quill into the vapor-containing process stream.

Abstract: A rotor element for use in extrusion and compounding machinery that incorporates means for mixing a low viscosity or immiscible additive with high viscosity base stocks such as polymer melts. The rotor incorporates a combination of one or more helical flights with an array of mixing pins arranged in the cylindrical screw root.

Abstract: A screw-type extrusion apparatus adapted for the extrusion of a viscous primary extrusion stock and particularly adapted for the mixing into said primary extrusion stock of an additive of lower viscosity, which comprises (a) an elongated barrel, (b) means for introducing the primary stock into an upstream end of said barrel, (c) means for discharging extrusion stock from a downstream end of said barrel, (d) a rotatable screw worm axially disposed within said barrel for advancing the primary stock from the upstream end of said barrel to the downstream end of said barrel, said screw having a screw root and affixed to said root at least two axially separated stages of helically threaded screw flights, and (e) an injector for introducing the additive into the barrel at an axial position intermediate to the two said stages of screw flights, said injector extending inward through said barrel wall and having an inlet external to said wall and an outlet positioned substantially at the surface of said screw root.

Abstract: Disclosed are a catalyst composed of a hydride of a rare earth and a transition metal, such as LaNi.sub.5 or LaCo.sub.5, and a reaction of H.sub.2 and CO to produce oxygenated hydrocarbons catalyzed by this catalyst. The reaction takes place at room temperature and at relatively low pressure.