Abstract: An improved liquid level regulator is associated with the reservoir of a degassing stage of an evaporation installation wherein a pump connected to the output of such degassing stage is effective to propel the distillate at an ideally constant rate out of the degassing stage to a suitable utilization device. A feedback path is connected between the pressure outlet of the pump and the suction input thereof via a float valve. The float valve communicates with the degassing stage in such a manner that changes in the distillate level of the degasser reservoir effect corresponding changes in the liquid level of the float valve, whereby a constant level of such distillate in the reservoir of the degasser is maintained.

Abstract: Various carbon black reactors having triangular cross-sections generate a highly turbulent flow of the reactants therein to produce high-tint carbon black.

Abstract: An atmospheric effects still includes a fluid holding tank provided with a supply opening, a top cover of transparent material supported above the tank, and a vertically-disposed tapered hollow tower member having its base resting on the floor of the tank and having an intermediate portion penetrating the top cover. At its base, the tower member has openings in its side walls to permit fluid entry into the tower member beneath the top cover. The tower member has a plurality of vertically-spaced sections of decreasing cross-sectional area, each section including a plurality of short, open tube members extending through two spaced plates. Solar energy heats fluid in the tank and causes a flow of moisture-laden air to rise upwardly through the tower member where clean water is condensed from such vapor.

Abstract: Apparatus for the vapor phase polymerization of at least one polymerizable monomer comprising: (a) a horizontal reactor of substantially circular cross-section containing a centrally-located drive shaft extending longitudinally through said reactor to which are attached a plurality of adjacently located paddles, which paddles cause essentially no forward or backward movement of the particulate matter contained in said reactor and extend transversely within and to a short distance from the internal surfaces of said reactor, said reactor being divided into two or more individually gas-composition-controllable and polymerization-temperature-controllable polymerization compartments, by one or more dividing structures so constructed to control gas intermixing and movement of said particulate matter between said compartments; (b) driving means for said drive shaft; (c) one or more reactor off-gas outlets in each of said compartments spaced along the topward part of said reactor; (d) one or more vapor recycle inlets

Abstract: Coke oven gas collecting apparatus includes separate gas and liquor collecting mains for charging gas and coking gas connected to the standpipe through a rotary vane liquor seal valve.