Products of the reaction of anabasine with phosgene
ConclusionsThe reaction of anabasine with phosgene has given the anabasinium salt of phosgene, anabasine-N-carbonyl chloride, and the urea derivative N,N′-carbonyldianabasine. In addition to the formation of these substances, the pyridine ring of anabasine is cleaved, giving the red substance 1-chloro-5-chloroformyl-amino-2-piperidin-2-yl)penta-1,3-diene.
Synthesen mit Hilfe des Dipyridiniumsalzes des Phosgens
Das Anlagerungsprodukt von Phosgen an Pyridin wurde als Dipyridiniumsalz des Kohlenoxychlorids im Sinne von Krohnke 1) erkannt. Die Substanz eignet sich im Laboratorium fur alle in der Phosgenchemie bisher bekannt gewordenen Reaktionen und zeichnet sich durch ihre besonders einfache Handhabung aus.
Research on velocity distribution in semi-dry flue gas desulfurization tower
As an accurate high-quality instantaneous measurement technology, particle image velocimetry (PIV in acronym) has applied widely in single-phase flow and multiphase flow. The velocity distribution in semi-dry FGD tower directly influences gas-solid mix and contact situation. In base of the tower, gas-solid two-phase flow field is more complex, and has the quite tremendous influence to the overall system desulphurization efficiency. This paper utilized PIV to study velocity distribution in Semi-dry flue gas desulfurization tower and obtained velocity distribution.