Extractive reactions with cationic exchange resins as catalysts (acetalization of aldehydes with alcohols)

1995 ◽  
Vol 28 (1) ◽  
pp. 29-38 ◽  
Author(s):  
Sanjay M. Mahajani ◽  
Aspi K. Kolah ◽  
Man Mohan Sharma
Keyword(s):  
Cationic Exchange ◽  
Exchange Resins

Oxidative decomposition properties of cationic exchange resins producing SO42− in power plants

2015 ◽  
Vol 71 (10) ◽  
pp. 1478-1484
Author(s):  
Zhiping Zhu ◽  
Chenlin Dai ◽  
Sen Liu ◽  
Ye Tian
Keyword(s):  
Data Analysis ◽  
Organic Carbon ◽  
Power Plants ◽  
Strong Acid ◽  
Residual Chlorine ◽  
Sulphate Content ◽  
Cationic Exchange ◽  
Exchange Resins ◽  
Dynamic Cycle ◽  
Decomposition Properties

The sulphate content of a system increases when strong-acid cationic exchange resins leak into a system or when sulphonic acid groups on the resin organic chain detach. To solve this problem, a dynamic cycle method was used in dissolution experiments of several resins under H2O2 or residual chlorine conditions. Results show that after performing dynamic cycle experiments for 120 hours under oxidizing environments, the SO42− and total organic carbon (TOC) released by four kinds of resins increased with time, contrary to their release velocity. The quantity of released SO42− increased as the oxidizing ability of oxidants was enhanced. Results showed that the quantity and velocity of released SO42− under residual chlorine condition were larger than those under H2O2 condition. Data analysis of SO42− and TOC released from the four kinds of resins by the dynamic cycle experiment revealed that the strength of oxidation resistance of the four resins were as follows: 650C > 1500H > S200 > SP112H.

Synthesis of biolubricants by the esterification of free fatty acids from castor oil with branched alcohols using cationic exchange resins as catalysts

2017 ◽  
Vol 104 ◽  
pp. 52-61 ◽  
Author(s):  
Rosana Maria A. Saboya ◽  
Juan Antonio Cecilia ◽  
Cristina García-Sancho ◽  
Ariane V. Sales ◽  
Francisco Murilo Tavares de Luna ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Free Fatty Acids ◽  
Castor Oil ◽  
Branched Alcohols ◽  
Cationic Exchange ◽  
Exchange Resins

Study on the Destruction Process of Cationic Exchange Resins Treated by Li2CO3-Na2CO3-K2CO3 Molten Salt

2021 ◽  
pp. 105948
Author(s):  
Xue-Ze Wang ◽  
Yang-Hai Zheng ◽  
Yun Xue ◽  
Yong-De Yan ◽  
Fu-Qiu Ma ◽  
...  
Keyword(s):  
Molten Salt ◽  
Destruction Process ◽  
Cationic Exchange ◽  
Exchange Resins
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