This paper studies the characteristics and mechanism of the adsorption of methylence blue from aqueous solution by humic acid which was extracted from swampy soil in Zhongdian of Yunnan in two methods.The result shows...This paper studies the characteristics and mechanism of the adsorption of methylence blue from aqueous solution by humic acid which was extracted from swampy soil in Zhongdian of Yunnan in two methods.The result shows that the adsorption could fit the langmuir model.Humic acids extracted in two methods has the similar pattern of adsorption,but the Humic acid by sodium pyrophosphate has better adsorption because of its bigger specific surface area.The adsorptive constant and thermodynamic parameters have been evaluated in different temperatures.Furthermore the mechanism of adsorption on the humic acid has been discussed.展开更多
Microwave irradiation technique was used to promote the extraction processes of bromide complex anions of Pt（Ⅱ） and Pd（Ⅱ） from aqueous biphase system of polyethyleneglyol/（NH4）2SO4. The results showed that und...Microwave irradiation technique was used to promote the extraction processes of bromide complex anions of Pt（Ⅱ） and Pd（Ⅱ） from aqueous biphase system of polyethyleneglyol/（NH4）2SO4. The results showed that under microwave irradiation the distribution ratio of metals, extraction capacity and extraction ratio increased significantly as compared with conventional extraction technique. Under microwave irradiation the extraction ratio of Pt or Pd achieved 100.0% and 99.6%, respectively. The non-isothermal kinetics on the extraction reaction also approved the enhanced extraction rate.展开更多
A new method for the separation of ion association complex of gold(Ⅲ) chloride rhodamine B by aqueous biphasic extraction system of n propyl alcohol (NH 4) 2SO 4 water was investigated.The experimental results indica...A new method for the separation of ion association complex of gold(Ⅲ) chloride rhodamine B by aqueous biphasic extraction system of n propyl alcohol (NH 4) 2SO 4 water was investigated.The experimental results indicate that the method can extract Au(Ⅲ) in hydrochloride medium.The extraction ratios of Au(Ⅲ) is 99.2%.The proposed method can separate Au from Fe,Al,Pb,Zn,Ca,et al base metals and was used for the separation of synthetic sample and the samples of anode slime and place gold.展开更多
文摘This paper studies the characteristics and mechanism of the adsorption of methylence blue from aqueous solution by humic acid which was extracted from swampy soil in Zhongdian of Yunnan in two methods.The result shows that the adsorption could fit the langmuir model.Humic acids extracted in two methods has the similar pattern of adsorption,but the Humic acid by sodium pyrophosphate has better adsorption because of its bigger specific surface area.The adsorptive constant and thermodynamic parameters have been evaluated in different temperatures.Furthermore the mechanism of adsorption on the humic acid has been discussed.
文摘Microwave irradiation technique was used to promote the extraction processes of bromide complex anions of Pt（Ⅱ） and Pd（Ⅱ） from aqueous biphase system of polyethyleneglyol/（NH4）2SO4. The results showed that under microwave irradiation the distribution ratio of metals, extraction capacity and extraction ratio increased significantly as compared with conventional extraction technique. Under microwave irradiation the extraction ratio of Pt or Pd achieved 100.0% and 99.6%, respectively. The non-isothermal kinetics on the extraction reaction also approved the enhanced extraction rate.
文摘A new method for the separation of ion association complex of gold(Ⅲ) chloride rhodamine B by aqueous biphasic extraction system of n propyl alcohol (NH 4) 2SO 4 water was investigated.The experimental results indicate that the method can extract Au(Ⅲ) in hydrochloride medium.The extraction ratios of Au(Ⅲ) is 99.2%.The proposed method can separate Au from Fe,Al,Pb,Zn,Ca,et al base metals and was used for the separation of synthetic sample and the samples of anode slime and place gold.
