Abstract: Apparatus for the purification of gas and vapor streams by the removal of solid, liquid or aeriform polluting substances; the apparatus including a stator formed as a tubular body having a cylindrical inner wall, which body is furnished with at least one inlet aperture for the admission of gas or vapor streams containing solid, liquid or gaseous impurities and with at least one discharge aperture, a coaxial rotor extending longitudinally and revolvably supported inside the tubular body in such a way as to define with the cylindrical wall at least one annular passage, and an inlet for the admission of liquid into the tubular body.

Abstract: A process is described in which hospital refuse is comminuted to a powder-like consistency or at least so as to be capable of being pumped and subsequently subjected to heat sterilisation treatment in a highly turbulent dynamic thin layer.

Abstract: A conching step for the production of chocolate is described and is carried out by means of a turbomixer which arranges the previously refined chocolate paste in a thin, dynamic layer which flows in contact and in a heat-exchange relationship with an internal wall of the turbomixer.

Abstract: A method for making a granular product including sodium silicate and its water of crystallization, having a specific weight of from 0.5 to 1.2 and completely soluble in water at ambient temperature includes the step of granulating a pseudoplastic mass of sodium silicate having a free water content of between 5 and 12% by weight under hot conditions in an air-steam environment.

Abstract: A method for eliminating pollutants and/or bad-smelling substances from a gaseous flow produced by the drying of a damp substrate provides for the separation of suspended solids, dehumidification, the heating and recycling of the gaseous flow to a drying apparatus after extraction of a portion of the flow and subjection of this portion to combustion with the simultaneous destruction of the pollutants and/or bad-smelling substances.