Experience with using alternative reducing agents at blast furnace
作者:J. Buchwalder、T. Fuchs、J. Hunger、T. Siepert
DOI:10.1051/metal:2003177
日期:2003.3
This paper presents the experience that EKO Stahl has gained with the blast furnace injection of plastics and animal fats as alternative reducing agents since 1993. The specific pieces of equipment that have been designed and implemented for handling, storing and injecting these substances into the blast furnace tuyeres are described. The parameters that allow line stability and the overall effects on blast furnace operation are reported.
Stereoselective migration of sterically hindered organoboranes in cyclic and acyclic systems. A stereoselective allylic C–H activation reaction
作者:Eike Hupe、Dmitri Denisenko、Paul Knochel
DOI:10.1016/j.tet.2003.09.043
日期:2003.11
The thermal migration of cyclic and acyclic organoboranes were studied. In most cases, a stereoselective 1,2-dyotropic migration was observed, allowing the stereocontrol of three contiguous chiral centers. Scope and limitations of this thermal migration are presented.