摘要
Several adsorbents such as 4A-molecular sieve,kaoline,zeolite and active white clay are used to stabilize sodium ferrate (Ⅵ) without sodium hypochlorite.It is proved that 4A-molecular sieve,pure kaoline,pure active white clay as well as active white caly prepared by us according to a certain composition can constrain the decomposition of sodium ferrate(Ⅵ).After 30 days,the decomposition percent of sodium ferrate(Ⅵ)adsorbed on these adsorbents is 18.1%,41.7%,3.89%,and 17.5%,respectively.The absorption diagram of desorbed ferrate solution is different from that of pure sodium ferrate solution,and the maxim wavelength is 523.2 nm and 525.2 nm for molecular sivev and active white clay contrasting to 505 nm for zeolite and pure sodium ferrate.
Several adsorbents such as 4A-molecular sieve,kaoline,zeolite and active white clay are used to stabilize sodium ferrate (Ⅵ) without sodium hypochlorite.It is proved that 4A-molecular sieve,pure kaoline,pure active white clay as well as active white caly prepared by us according to a certain composition can constrain the decomposition of sodium ferrate(Ⅵ).After 30 days,the decomposition percent of sodium ferrate(Ⅵ)adsorbed on these adsorbents is 18.1%,41.7%,3.89%,and 17.5%,respectively.The absorption diagram of desorbed ferrate solution is different from that of pure sodium ferrate solution,and the maxim wavelength is 523.2 nm and 525.2 nm for molecular sivev and active white clay contrasting to 505 nm for zeolite and pure sodium ferrate.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2004年第6期861-862,共2页
Chemical Research and Application
关键词
高铁酸钠
稳定化
吸附
ferrate
stabilization
adsorption
