Study on thermal decomposition and oxidation kinetics of cation exchange resins using non-isothermal TG analysis

2014 ◽  
Vol 118 (2) ◽  
pp. 1073-1083 ◽  
Author(s):  
Hee-Chul Yang ◽  
Min-Woo Lee ◽  
Ho-Sang Hwang ◽  
Jei-Kwon Moon ◽  
Dong-Yong Chung
Keyword(s):  
Thermal Decomposition ◽  
Cation Exchange ◽  
Oxidation Kinetics ◽  
Isothermal Tg ◽  
Tg Analysis ◽  
Cation Exchange Resins ◽  
Exchange Resins ◽  
Kinetics Of

Design and Research of Spent Resin Conical Dryer Device

2017 ◽  
Author(s):  
Yan Zhou ◽  
Haifeng Zhang
Keyword(s):  
Thermal Decomposition ◽  
Cation Exchange ◽  
Water Content ◽  
Anion Exchange ◽  
Vacuum Drying ◽  
Drying Process ◽  
Anion Exchange Resins ◽  
Cation Exchange Resins ◽  
Exchange Resins ◽  
Spent Resin

This paper introduced the design and research of spent resin conical dryer which was based on the analysis of the thermal decomposition characteristics of resins. The drying experiment of non-radioactive cation exchange resins and anion exchange resins was also carried out in this study. The result showed that the water content of resins reduced from about 55%(wt) to 8.5%(wt) and the volume reduction ration reached 2.17 with a drying end temperature of 90°C, which preliminarily verified the feasibility of the vacuum drying process and conical dryer device for treating radioactive spent resins.

A Study of Direct Hydration of Dihydromyrcene to Dihydromyrcenol Using Cation Exchange Resins as Catalyst

2010 ◽  
Vol 8 (1) ◽  
Author(s):  
Yong Liu ◽  
Zheng Zhou ◽  
Gaodong Yang ◽  
Youting Wu ◽  
Zhibing Zhang
Keyword(s):  
Cation Exchange ◽  
Reaction Rate ◽  
Molar Ratio ◽  
Catalyst Loading ◽  
Reaction Rate Constants ◽  
Cation Exchange Resins ◽  
Catalyst Type ◽  
Exchange Resins ◽  
Reaction Activation Energy ◽  
Kinetics Of

A study of direct hydration of dihydromyrcene (DHM) with H2O to produce dihydromyrcenol (DHMOH) has been carried out using cation exchange resins as catalysts in a batch stirred-tank reactor. The effect of different parameters such as agitating speed, catalyst type, catalyst loading, molar ratio of the reactants and solvent, temperature and solvent on the conversion of DHM were investigated to obtain the optimal conditions of the reaction. The kinetics of hydration process was studied in the temperature range from 333.15 K to 353.15 K. A pseudo-homogeneous kinetics model was used to explain the reaction rate and the reaction rate constants and the reaction activation energy were determined.

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