Abstract: A device for producing purified, especially high-purity, magnesium includes a reactor for vacuum distillation that is extended along a longitudinal axis (L). The reactor defines a reactor inner chamber having a heating region for heating magnesium. A crucible forms a crucible inner chamber for receiving purified magnesium vaporized and condensed by the device. A radial projection in the heating region defines a contact surface that extends essentially transverse to the longitudinal axis (L) and forms an essentially sealed connection with an edge of the crucible adjacent to the crucible inner chamber.

Abstract: A device for producing purified, especially high-purity, magnesium includes a reactor for vacuum distillation that is extended along a longitudinal axis (L). The reactor defines a reactor inner chamber having a heating region for heating magnesium. A crucible forms a crucible inner chamber for receiving purified magnesium vaporized and condensed by the device. A radial projection in the heating region defines a contact surface that extends essentially transverse to the longitudinal axis (L) and forms an essentially sealed connection with an edge of the crucible adjacent to the crucible inner chamber.

Abstract: A method is provided for the manufacture of an implant, in particular of a metallic implant, comprising the steps of roughening the surface of the implant by blasting with blasting particles and of treating the surface with a solvent which selectively dissolves the blasting particles.

Abstract: In the method for producing a surface structure, material is ablated by means of a liquid jet (1). The jet (1) is emitted from a nozzle (10) under high pressure (p). In this an ablation location (3) is controlledly moved on a surface (20a) of a substrate (20) to be structured with the production of a predetermined macro-topography (2′) or a largely planar surface, namely through moving the nozzle and/or the substrate. The substrate is in particular part of a surgical implant. The liquid of the high pressure jet (1) is emitted at a predetermined diameter d of the nozzle with a sufficiently high pressure p so that through the material ablation a linear track (2) with quasi-fractal micro-topography (4) is produced. In this the track width D is at least twice as large as d. Values for p and d are provided in the following range: 100 bar<p<3000 bar and 0.1 mm<d<10 mm; or p>3000 bar and d>0.03 mm.