327-62-8Relevant articles and documents
Electrochemical reactor for sustainable transformation of bio-mass derived allyl alcohol into acrylate and pure hydrogen
Bellini, Marco,Di Vico, Benedetto,Innocenti, Massimo,Miller, Hamish Andrew,Oberhauser, Werner,Pagliaro, Maria Vincenza,Vizza, Francesco,Zangari, Giovanni
, (2021/06/14)
Acrylic acid is widely used in the chemical, polymer, cosmetic and food industries. Typically, it is produced through processes with a high environmental impact. In this paper, we demonstrate the co-production of the potassium acrylate salt and hydrogen gas from allyl alcohol in a liquid flow fed anion exchange membrane electrolysis cell operating at 60 °C and ambient pressure. We compare in electrolysis cell tests, two electrocatalysts Pd/C and Pd-CeO2/C evaluating the activity and selectivity for acrylate production. Electrolysis cell parameters are tuned obtaining a maximum conversion of allyl alcohol of 96% and a selectivity to acrylate of 50% at an operating cell voltage of 1 V. Operating at a lower cell potential (0.7 V) the selectivity for acrylate increases to 74%. Hydrogen gas is produced in the separated cathode compartment at an energy cost of 26 KWh kgH2-1, which is around half when compared to state-of-the-art water electrolyzers. The electrochemical oxidation mechanism of allyl alcohol is also studied and discussed, providing for the first time an insight into the pathways for formation of acrylate with respect to the other principle oxidation products (propionate and 3-hydroxypropionate).
PROCESS FOR MANUFACTURE OF CARBOXYLIC ACID SALTS
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Page 17, 19, (2008/06/13)
The invention relates to a process for manufacture of carboxylic acid salts in the form of alkali metal or alkaline-earth metal carboxylates of 1 to 3 carbon atoms. The continuous manufacturing process comprises: 1) passing carboxylate salt of a starting cation through one or several ion exchange beds containing solid cation exchanger charged with an alkali metal or alkaline-earth metal cation,2) collecting a product solution containing alkali metal or alkaline-earth metal carboxylate eluted from the one or several ion exchange beds in step 1,3) simultaneously with step 1, regenerating one or several ion exchange beds containing solid cation exchanger charged with the starting cation by passing a regenerating solution containing a salt formed by an anion and the alkali metal or alkaline-earth metal cation through the one or several ion exchange beds,4) collecting an effluent solution containing the starting cation and the anion eluted from the one or several ion exchange beds in step 3, and 5) shifting the inlet and outlet points of the solutions in the same direction to other ion exchange beds._________________________________________________________
Relationship between the Electronic Structure of Acrylic and Methacrylic Acid and the Rates of Hydrogenation of Their Salts on Pt Black
Volkova, L. D.,Vyaznikovtseva, O. V.,Gabdrakipov, V. Z.,Sokol'skii, D. V.
, p. 1650 - 1652 (2007/10/02)
We have studied the hydrogenation of the alkali metal salt of acrylic and methacrylic acid on platinum black.The relative reactivities, which are interest in calculations of the electronic structure of acids, have been determined by the CNDO/2 method.
