Loading patent…
AssigneeSortech AG
InventorsJürgen Bauer, Ralph Herrmann, Wilhelm Schwieger, Abhijeet Avhale
Estimating the term…
An aluminum-containing substrate is described that comprises at least one superficially applied microporous layer of an aluminum phosphate zeolite (ALPO) as well as other layers. Said aluminum-containing substrate is characterized in that the microporous layer of the aluminum phosphate zeolite represents a primer coating on which a microporous or mesoporous secondary material is located which differs from the material of the primer coating. Said aluminum-containing substrate is produced in a particularly advantageous manner according to a method in which 1. an aluminum-containing substrate is hydrothermally treated in an aqueous suspension containing at least phosphorus as a network-forming element, and a microporous primer coating of an aluminum phosphate zeolite is formed on the substrate by means of an in situ crystallization process, especially the molar ratio between the network-forming aluminum that is deficient in the aqueous suspension and the sum of all network-forming elements in the aqueous suspension being less than 0.5 such that the aluminum required for compensating the deficiency is removed from the aluminum-containing substrate, and 2.; a microporous or mesoporous secondary material is formed on the microporous primer coating by subjecting the aluminum-containing substrate that comprises the microporous primer coating to another treatment in an aqueous suspension containing the network-forming elements required for forming the porous secondary material. The described aluminum-containing substrate is particularly suitable as a heat exchanger, as a catalytic reactor, or as a component in heat transformation technology with an anti-corrosive or anti-fouling effect.
An aluminium-containing substrate with at least one superficially applied microporous layer of an aluminium phosphate zeolite (ALPO), characterised in that the microporous layer of the aluminium phosphate zeolite (ALPO) is a primary layer, and wherein the substrate further includes a microporous secondary material located on the primary layer of aluminium phosphate zeolite (ALPO), the microporous secondary material being different from the material of the primary layer, wherein the microporous primary layer and the microporous secondary material
An aluminium-containing substrate with at least one superficially applied microporous layer of an aluminium phosphate zeolite (ALPO), characterised in that the microporous layer of the aluminium phosphate zeolite (ALPO) is a primary layer, and wherein the substrate further includes a mesoporous secondary material located on the primary layer of aluminium phosphate zeolite (ALPO), the mesoporous secondary material being different from the material of the primary layer, wherein the microporous primary layer and the mesoporous secondary material
Dependencies are inferred from the claim text.