Umweltschutz-Probleme im Betriebsbereich der Elektro-Tauchlackierung

Problems of Environmental Safety in the Area of electro-Immersion Painting Electro-immersion painting, a modern economic process for serial production, meets the requirements of environmental safety. Problems of effluent gas and water have been solved satisfactorily.     

Entwicklungstendenzen metallischer Werkstoffe aus der Sicht der Verwendung im Chemieanlagenbau

Developments of metallic materials in view of their use for chemical plants . The demands placed on materials of construction for chemical plants are becoming more and more stringent due to the steady increase in mechanical, thermal, and chemical loading. Molten metallurgical improvements, alloying steps, new methods of plastic deformation and heat treatment, and facilitation of workability are implemented in attempts to optimize the properties of construction materials and to achieve better adaptation to the service conditions. Progress achieved by research and developments during recent years in the above mentioned field is apparent in practical applications of some groups of materials which are important for construction of apparatus; these are high-strength fine grained steels, high-alloyed ferritic and austenitic stainless steels, as well as duplex steels. Moreover, the improvements – especially in corrosion restistance – are considered which can be obtained by special melting techniques and new fabrication processes. In addition, the advantages of electroslag remelting (ESR) and powdermetallurgical fabrication of semi-finished products of corrosion resistant alloys and the possibilities of hotisostaticpressing (HIP) of structural components are discussed.     

Anwendungspotenzial von Membranprozessen im Konzept der Lignocellulose-Bioraffinerien

The pulp and paper industry is one of the most important industrial sectors worldwide and has a great potential to be a cornerstone for the future bio-economy, in particular lignocellulosic bio-refineries. The potential of the membrane processes in this conversion will be highlighted in three applications related to kraft/sulphate, sulphite and thermomechanical pulping. Furthermore, the challenges of membrane fouling and cleaning with regard to pulping industry will be discussed and an outlook on future developments of membranes in biorefineries will be given.