Abstract: A separator suitable for separating a crude oil feed containing gas into gas and liquid the separator comprising a vessel (4) having an inlet (6) for feed disposed so that feed introduced under a pressure gradient is caused to form a downwardly flowing vortex of liquid from which an upwardly flowing vortex of gas separates, an upper outlet (10) for the vortex of gas comprising a pipe (8) extending downwardly into the vessel from the top thereof, a lower outlet (16) for the liquid, the vessel further having located therein below the inlet (6) a downwardly extending hollow truncated cone (12) or cylinder to provide a surface for the downwardly flowing vortex of liquid, the walls (7) of the vessel (4) being spaced apart from the cone to provide therebetween a disengaging chamber (15) and an outlet (20) for the discharge of gas from the disengaging chamber.

Abstract: A cyclone separator for separating a crude oil feed containing gas and water into (i) gas, (ii) liquid oil and (iii) water comprises a vessel having an inlet disposed so that feed introduced under a pressure gradient is caused to form a downwardly flowing liquid vortex from which gas separates, an upper outlet for the gas, a hollow cylinder or small angle cone whose internal surface provides a surface for the liquid vortex, the walls of the vessel being spaced from the cone to define therebetween a disengaging chamber, an outlet for gas from the disengaging chamber, a first lower outlet for the liquid oil and a second lower outlet for the water.

Abstract: A fixture for holding zipper sliders is disclosed as including a clamp attached to a generally inverted J-shaped standard having in the upper edge thereat a slot adapted to receive a zipper slider. A tip of the standard adjacent the slot is rabbetted on both sides transversely to the slot so that the tip has a width equal to that of the slot, and the top of the tip lies in the same plane as the bottom of the slot.

Abstract: This case relates to a process for producing aromatics by contacting a C.sub.3 -C.sub.8 hydrocarbon with a gallium catalyst supported on an aluminosilicate in which the ratio of silica to alumina is between 20:1 and 70:1.

Abstract: This case relates to a process for producing aromatics by contacting a C.sub.3 -C.sub.8 hydrocarbon with a gallium catalyst supported on an aluminosilicate in which the ratio of silica to alumina is between 20:1 and 70:1.

Abstract: This case relates to a process for producing aromatic hydrocarbons by contacting a C.sub.3 -C.sub.8 hydrocarbon with a gallium catalyst on a silica support which has a surface area greater than 500 m.sup.2 /g and a pore volume less than 0.8 ml/g.