High Purity Metal Production Using Dry Refining Processes

Tensile Properties of High-purity Ca Metal

Recent interest in using calcium (Ca) as a reinforcement metal in Al/Ca metal-metal composites prompted this study of the mechanical properties of high-purity Ca metal. Previously reported measurements of Ca’s mechanical properties were performed on Ca of relatively low purity (~95 at%). Ca used in this study was purified by sublimation to reduce O, N, and C concentrations, yielding 99.95% puri...

robust control of a high-purity disttilation column using synthesis

Refining Business Processes

In this paper we present a calculus for re nement of business process models based on a precise de nition of business processes and process nets Business process models are a vital concept for communicating with experts of the application domain Depending on the roles and responsibilities of the application domain experts involved process models are discussed on di erent levels of ab straction ...

Analysis of Trace Metal Impurities in High Purity Hydrochloric Acid Using ICP-QQQ

Biological Pretreatment and Dry Digestion Processes for Biogas Production

Biogas technology has been used quite extensively to generate renewable energy from organic wastes while also recycling nutrients in the wastes and reducing harmful emissions. However, the challenges of low biogas yield from recalcitrant and inhibitory solid wastes together with high construction and operation costs of bioreactors have impeded optimal performance through this process. Additiona...