ChemInform Abstract: REACTIONS OF TRIMETHYLSILYLATED SILICATE ANIONS IN ACIDIC MEDIUM. PART 1. EFFECT OF AMBERLYST 15 CATION-EXCHANGE RESIN ON THE PRODUCTS OF TRIMETHYLSILYLATION OF HEXAMERIC RING SILICATES

1981 ◽  
Vol 12 (7) ◽  
Author(s):  
G. GARZO ◽  
A. VARGHA ◽  
T. SZEKELY ◽  
D. HOEBBEL
Keyword(s):  
Cation Exchange ◽  
Acidic Medium ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Amberlyst 15

scholarly journals Conversion of D-fructose to 5-acetoxymethyl-2-furfural Using Immobilized Lipase and Cation Exchange Resin

Molecules ◽  
2019 ◽  
Vol 24 (24) ◽  
pp. 4623 ◽  
Author(s):  
Nhan Thanh Thien Huynh ◽  
Kyung Won Lee ◽  
Jin Ku Cho ◽  
Yong Jin Kim ◽  
Se Won Bae ◽  
...  
Keyword(s):  
Cation Exchange ◽  
Exchange Resin ◽  
Reaction Pathway ◽  
Immobilized Lipase ◽  
Solid Acid Catalyst ◽  
Total Yield ◽  
Cation Exchange Resin ◽  
Acid Catalyst ◽  
Significant Loss ◽  
Amberlyst 15

5-Acetoxymethyl-2-furfural (AMF) was prepared from D-fructose via 1,6-diacetylfructose (DAF) through a simple two-step reaction pathway. Immobilized enzyme (Novozym 435) was found to be the best enzymatic catalyst for the trans-esterification step (yielding 94.6% DAF). In the dehydration step, while soluble H2SO4 was found to be the best acidic catalyst (yielding 86.6% AMF), we opted to utilize heterogeneous cation exchange resin (Amberlyst 15) together with recyclable industrial solvents (1,4-dioxane) for a more sustainable AMF synthesis procedure. Although the total yield of AMF was a little lower, both the enzyme and the solid acid catalyst could be recycled for five cycles without a significant loss of activity, which has a major contribution to the cost-efficient aspect of the entire process.

Characterization of Amberlyst 15. Macroreticular Sulfonic Acid Cation Exchange Resin

1962 ◽  
Vol 1 (2) ◽  
pp. 140-144 ◽  
Author(s):  
Robert Kunin ◽  
E. A. Meitzner ◽  
J. A. Oline ◽  
S. A. Fisher ◽  
Norman Frisch
Keyword(s):  
Cation Exchange ◽  
Sulfonic Acid ◽  
Exchange Resin ◽  
Cation Exchange Resin ◽  
Amberlyst 15 ◽  
Acid Cation
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