Method for preparing filter membrane of palladium-base alloy/aperture gradient Ti-Al intermetallic compound homogeneous support body for hydrogen separation

A technology of intermetallic compounds and palladium-based alloys, applied in chemical instruments and methods, semi-permeable membrane separation, membrane technology, etc., can solve problems such as high cost, difficult to weld components, non-uniform activation, etc., to improve oxidation resistance , excellent mechanical properties, the effect of prolonging the service life
CN1640527AInactive Publication Date: 2005-07-20CENT SOUTH UNIV
0 Cites 14 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CENT SOUTH UNIV
Publication Date
2005-07-20
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The present invention relates to production of semipermeable membrane, and relates to a special preparation method of semipermeable membrane for separation process. It utilizes die pressing or isostatic cool pressing process to make Ti and Al element powder be directly combined with Ti foil or Al foil and formed into sheet blank or tubular blank, or first utilizes die pressing or isostatic cool pressing processto make Ti and Al element powder be formed into sheet blank or tubular blank, then utilizes Al liquid surface melt-dipping mode to obtani composite formed blank; then utilizes low-temperature preparation and high-temperature short-term reaction two-stage vacuum sintering synthesizing method to prepare TiAl intermetallic compound pore diameter gradient homogeneous supporting body, then adopts CVD or PVD mode to uniformly plate a layer of palladium-based alloy membrane whose thickness is 5-50 micrometers on its surface.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field:

[0001] The invention relates to the production of a semi-permeable membrane, a special preparation method for the semi-permeable membrane used in a separation process, and a preparation method for preparing a filter membrane of a hydrogen separation palladium-based alloy and a TiAl intermetallic compound homogeneous support body with a pore size gradient. Background technique:

[0002] Membrane separation technology is driven by external energy or chemical potential difference to separate, classify, purify and enrich the gas or liquid mixed with two or more components. Most of the process has no phase change, and it has high efficiency, energy saving, With the advantages of simple process, less investment and less pollution, it is widely used in various production and research departments of the national economy and in the field of national defense construction. In the field of gas membrane separation, the most widely used is the separation and recovery of h...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More