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

fYear

2011

fDate

22-24 April 2011

Firstpage

2227

Lastpage

2230

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on

Conference_Location

Lushan

Print_ISBN

978-1-4577-0289-1

Type

conf

DOI

10.1109/ICETCE.2011.5774219

Filename

5774219