Combined Adsorption and Ion Exchange of D-Glyceric Acid Using a Strong Basic Resin: Equilibrium, Kinetics, and Thermodynamics

Chemical and Biochemical Engineering Quarterly

Y. Pu¹  B. Wang²  Y. Xie³  Z. Cai⁴  Q. Zheng⁵  Y. Lu⁵ 

[1] b)Fujian Province Key Laboratory for the Development of Bioactive Material from Marine Algae, Quanzhou 362000, China;a)College of Oceanology and Food Science, Quanzhou Normal University, Quanzhou 362000, China;epartment of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China;ollege of Biological Science and Engineering, Fuzhou University, Fuzhou 350108, China;ollege of Oceanology and Food Science, Quanzhou Normal University, Quanzhou 362000, China;

关键词: D-glyceric acid;    ion exchange;    adsorption;    film diffusion;    resin 201×7;   

DOI  :  10.15255/CABEQ.2017.1112

来源: DOAJ

【 摘 要 】

D-Glyceric acid (D-GA) is a glycerol derivative with various promising biological functions. This paper reports the adsorption of D-GA from aqueous solution using a strong basic resin. The effect of pH on the uptake of D-GA was studied, and several models were used to investigate the interactions of D-GA and the resin. A theoretical model based on ion exchange and adsorption was developed to fit the isotherms under various pH or temperatures. Kinetic experiments under different initial D-GA concentrations were also performed to define the controlling mechanism of the overall adsorption process. The results showed that the uptake process of D-GA was controlled by the rate of D-GA diffusion through the polymeric matrix of the resin. This study provides valuable information and theoretical support for the scale-up and optimization of operating conditions for the recovery of D-GA.

【 授权许可】

Unknown