Entwicklung einer kontinuierlichen Mikrowellen‐Vakuumtrocknungsanlage mit hexagonalem Verfahrensraum

A continuous microwave vacuum drying processor with a hexagonal cross‐section of the cavity was constructed. Due to the geometry of the cavity and the continuous movement of the product, homogeneous microwave power absorption of the product can be favored. By the expansion and simultaneous dehydration of non‐expanded, starch‐based extrudates, the applicability of the constructed processor could be shown.     

Investitionsgüterhersteller als Anbieter industrieller Lösungen – Bestandsaufnahme des Wandels anhand einer Umfrage

The article is dedicated to the empirical exploration of solution providers in the German capital goods industry. A model – consisting of six principles and success factors for solution management – is used to draw conclusions on the relevance and the need for action to manage the transition towards being a solution provider. The answers from 99 medium-sized companies reveal the following results: 1.) The solution concept offers the opportunity to gain competitive advantage 2.) The potential of providing solutions has been recognised, yet the implementation is lagging behind 3.) A consistent solution management process is a prerequisite for success 4.) Appropriate methods and tools are required along the whole process.     

Initiativen und Politikmaßnahmen für biobasierte Produkte in Deutschland

Up to now, bio‐based products have not been able to exploit their full market potential. Hence, various policy initiatives have provided various recommendations for an increasing support. A huge number of policy measures with relevance to bio‐based products in Germany already exists. These measures address primarily R&D activities. Support of commercialization is only covered regarding some barriers. Moreover, comprehensive policy support for market penetration is missing in Germany as well as in other countries.     

Management of composition cathodic products in the electrolysis of molybdenum‐, tungsten‐ and carbon‐ bearing halogenide‐oxide and oxide melts

It is shown that the cathode products of electrolysis of melts based on a eutectic mixture of sodium chloride and lithium fluoride as well as melts based on sodium tungstate in which dissolved oxides of molybdenum (VI) or tungsten (VI), molybdate, tungstate and lithium or sodium carbonates are molybdenum, tungsten, their bronzes and carbides, carbon. It is established that the phase composition of electrolysis products is determined by the concentration of carbonate in the melt. Particular conditions of plating coating of molybdenum and tungsten carbides on carbon, nickel and copper materials are determined. Molybdenum carbide coatings of electrolyte Na₂WO₄–Li₂MoO₄–Li₂CO₃ are deposited at equality (within 2.5 mol%) of concentrations molybdate and lithium carbonate. However, their concentrations should not exceed 10 mol%. At lower concentrations of molybdate in the precipitate are detected carbon, molybdenum, molybdenum carbide, and at high concentrations – molybdenum oxides. At lower concentrations of carbonate in the sediment dominates molybdenum and at large concentrations mainly free carbon is released. More affordable industrial reagent‐source of molybdenum is its oxide.     

Verwendung von Nanopartikeln in Lebensmitteln und Kosmetika – Statusbericht

Zusammenfassung:  Nanotechnologien halten mittlerweile weltweit Einzug in die Herstellung verbrauchernaher Produkte. Der vorliegende Statusbericht gibt Auskunft darüber, bei welchen Produkten aus welchen Regionen der Welt derzeit nicht auszuschlie?en ist, dass sie unter Verwendung von Nanopartikeln hergestellt worden sind. Weiterhin wird dargestellt, welche Marktbedeutung die Nanotechnologie inzwischen erreicht hat und welche Entwicklungen in diesem Bereich zu erwarten sind. Eingegangen: 17. Juni 2008