METHOD FOR CONTROLLING SUBSTANCES BY MENISCUS EVAPORATION

摘要

The method serves to control substances present in a liquid; a liquid mass is brought to temperature and pressure conditions such as to give rise to an appreciable evaporation of the liquid mass; at least one solid surface is arranged, in part inside the liquid mass and in part outside the liquid mass so as to establish at least a meniscus of the liquid on this solid surface; the shape and/or the size and/or the extension and/or the position and/or the temperature of this meniscus is controlled so that the evaporation of the liquid through said meniscus is controlled; any deposition of these substances is also controlled.

主权项

1. A system for separating at least one substance present in a liquid, comprising:
a container arranged to internally contain a mass of said liquid, wherein there is present an amount of said at least one substance, and a heater arranged to heat said mass of said liquid at a temperature such as to give rise to an appreciable evaporation of said liquid; wherein said container comprises an upper part that is dome-shaped and has an opening from which steam generated due to the heating of said mass of said liquid can escape, and wherein said container comprises a perimeter wall that is internally arranged to establish an appreciable concave meniscus of said liquid; wherein said perimeter wall of said container has an internal flange at said meniscus, above said meniscus, that protrudes towards the inside of the container and is bent downwards and arranged so that steam rising upwards from the meniscus is retained by said internal flange, whereby steam originating from said meniscus can be kept separate from steam originating from a flat liquid surface and from steam originating from rising steam bubbles.