Abstract: A refractory tube wall lining comprises a multiplicity of refractory tiles (1) which are arranged next to and above one another and each have two T-shaped slots (16) which extend over the entire height of the tile. The tiles (1) are held on the lined tube wall (2) by means of in each case two screw-like tile holders (11). Brackets which are independent of the tile holders (11) are used to support the tiles (1). Stepped top and bottom edges of the tiles (1) allow the tiles (1) to move vertically with respect to one another without the seal of the tube wall lining being lost. For the same purpose, the two side edges (14, 15) of each tile (1) are fitted with a tongue (141) or a groove (151).

Abstract: The invention relates to a method for purifying and concentrating AAV-2 and antigen portions thereof. AAV-2 or antigen portions thereof are bonded to an activated chromatographic material on which antibodies are linked, said antibodies being directed against AAV-2. Afterwards, elution using a solution containing 0.5 to 4.5 M MgCl2 is carried out. The invention also relates to a kit for implementing said method.