Title :
Experimental study on the absorption of phosphine wastegas by sodium hypochlorite
Author :
Huang, Xiao-feng ; Wang, Xiao-ni ; Ning, Ping ; Tan, Juan ; Hu, Ruo-peng ; Li, Wen-qing
Author_Institution :
Fac. of Environ. Sci. & Eng., Kunming Univ. of Sci. & Technol., Kunming, China
Abstract :
Sodium hypochlorite as oxidant was used for adsorbing phosphine, which was emitted from sodium hypophosphite industry. The effects of the available chlorine density and pH were mainly studied via experiments. The results can be concluded that when the speed of carrier gas flow is 20 mLmin-1, the temperature for reaction is about 20°C with pH at 9, and the density of sodium hypochlorite solution is 0.75%, 7% as the first-level, the second-level absorption solution, respectively, the effect of absorption is good and the yield of sodium hypophosphite is high.
Keywords :
chemical engineering; chemical industry; heat of reaction; organic compounds; pH; sodium compounds; waste handling; carrier gas flow speed; chlorine density; oxidant; pH; phosphine wastegas absorption; reaction temperature; second-level absorption solution; sodium hypochlorite solution; sodium hypophosphite industry; temperature 20 degC; Absorption; Carbon; Fluid flow; Industries; Purification; Seminars; Waste materials; absorption; phosphine; sodium hypochlorite; sodium hypophosphite;
Conference_Titel :
Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on
Conference_Location :
Lushan
Print_ISBN :
978-1-4577-0289-1
DOI :
10.1109/ICETCE.2011.5774219
