Invention Grant
- Patent Title: Aluminum-containing substrate comprising a microporous layer of an aluminum phosphate zeolite, method for the production thereof, and use thereof
- Patent Title (中): 含有磷酸铝沸石的微孔层的含铝基材,其制造方法及其用途
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Application No.: US12736807Application Date: 2009-05-13
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Publication No.: US09175396B2Publication Date: 2015-11-03
- Inventor: Jürgen Bauer , Ralph Herrmann , Wilhelm Schwieger , Abhijeet Avhale
- Applicant: Jürgen Bauer , Ralph Herrmann , Wilhelm Schwieger , Abhijeet Avhale
- Applicant Address: DE Halle (Saale)
- Assignee: SorTech AG
- Current Assignee: SorTech AG
- Current Assignee Address: DE Halle (Saale)
- Agent Gerald T. Bodner
- Priority: DE102008023634 20080515
- International Application: PCT/EP2009/003408 WO 20090513
- International Announcement: WO2009/138223 WO 20091119
- Main IPC: B01J29/06
- IPC: B01J29/06 ; B01J27/182 ; C23C18/12 ; B01J29/85 ; B01J29/83 ; B01J35/10 ; B01J37/02

Abstract:
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.
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