Abstract: In a process for post-treatment of pickled steel products by rinsing with water in continuous rinsing plants, inert gas or rare gas is blown into at least one of the rinsing sections (1,2,3 or 4) of the rinsing plant. This prevents the formation of hydrolysis stains on the surface of the steel products in case of the strip standing still. The device for carrying out the process consists of several rinsing sectors 1, 2, 3, 4, with at least one feed opening 8 for liquid medium, with at least one of the rinsing sections 1,2,3 or 4 being provided with at least one feed opening 19, 20 for blowing in gases.

Abstract: Process for the electrolytic pickling of continuously advancing electrically conductive material, wherein the treatment periods as compared with purely chemical treatments are to be shortened respectively the length of the treatment plant is to be shortened and wherein the attack of aggressive ions onto the electrode material is to be counteracted for the attainment of longer life expectancies, in particular of the anode. The material to be treated is subjected to at least one cathodic treatment in a first vessel and merely an anodic treatment in an immediately following vessel, and the electrical circuit between the electrodes of different polarities in successive vessels is completed by way of the material being treated. In the apparatus according to the invention at least one anode dips into one of the successive vessels, whereas all electrodes in the immediately following vessel are of cathodic polarity.

Abstract: A process and apparatus for continuously purifying gases by removing entrained burdening substances therefrom, wherein the gas is loaded with entrained substances is passed substantially radially through adsorbing material arranged about an axis of rotation as an adsorber bed, the substances being retained on the adsorbing materials in the course of their rotational movement about the axis of rotation, and in the course of further rotational movement the load of retained substances is desorbed, optionally after inertization, by flushing with a fluid medium, e.g., hot gases or steam, and the adsorbing material may then be cooled and/or dried. Rotational movement is preferably done intermittently, and the feed stream to and the drain stream from the adsorbing material each are conducted through a confined space extending at least in one direction substantially parallelly to the axis of rotation or to the adsorber bed, the confined space being fed and drained axially.