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AssigneeSulzer Chemtech AG
InventorsHartmut E. A. Bruschke, Wolfgang Schafer, Nicholas Patrick Wynn, Frank-Klaus Marggraff
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Process for the continuous manufacture of tubular composite or multi-layer membranes comprising a porous sub layer (support layer), mainly determining the mechanical strength of the membrane, and adjacent to the support layer a second layer of a material of different chemical nature (separation layer), mainly determining the separation properties of the membrane, winding a respective flat sheet composite membrane lengthwise or spirally around a mandrel or shaft, into a tube or hose, the separating layer of the composite membrane facing to the inside of the tube or hose, gluing or welding the edges which may overlap or form a butt seam, and applying to said seam or overlapping area from the inside of the tube or hose a sealing material which can be solidified, and finally solidifying said sealing material.
A process for the continuous production of composite or multi-layer membrane tubes, the multi-layer membrane tubes comprising a porous support layer, mainly determining the mechanical strength of the membrane, and, adjacent to said porous support layer, a second layer of a material of different chemical nature, said second layer mainly determining the separation properties of the membrane (separating layer), said process comprising the steps of:
Dependencies are inferred from the claim text.