The present invention relates to a method for the purification of antibodies from a protein mixture produced in a bioreactor, at least comprising the steps of intermediate purification and polishing, wherein the intermediate and polishing step comprises in-line anion exchange chromatography treatment and mixed mode chromatography treatment in flow through mode. The invention also provides a liquid collecting box with such cyclone separator and a pressure vessel provided with such liquid collecting boxes. They are particularly useful for inhibiting bone resorption and for the treatment and prevention of osteoporosis. In order to improve guidance of the slabs and provide a flexible transport of the slabs from the casting machines to the rolling mill, the at least two linear, pivotable conveyor sections are arranged to be pivotable independently of one another. Since the perceptual preview image incorporates information associated with the detected perceptual features, a viewer of the perceptual preview image will be more likely to detect the presence or absence of such perceptual features in the larger image.