Resin Material Used in Methyl Acrylate Hydrolysis Reaction

Abstract

In this work, the ion exchange resin catalyst named D072 were used in the hydrolysis of a methyl acrylate to acrylic acid and methanol firstlyand chemical equilibrium would be achieved during the process of the reversible reaction system. The influences of parameters such as dosage of catalyst, initial reactants molar ratio and reaction temperature were investigated. Meanwhile, the reusability of cation-exchange resin was studied, and no phenomenon of deactivation was found with using of reused catalyst. Moreover, the experimental data were analyzed by the pseudo-homogeneous (PH) model and the hydrolysis dynamics equation of methyl acrylate was obtained and found that the activation energy of the reaction was 118.37 KJ/mol in the presence of D072. Based on the result, high energy would be needed to the hydrolysis of methyl acrylate in using D072 resin as catalyst.

Kinetic and Reactive Distillation for Acrylic Acid Synthesis via Transesterification

“…3−5 The primary drawbacks of methyl acrylate hydrolysis in synthesizing acrylic acid are the high activation energy and long time to reach equilibrium. 6 Using acetic acid instead of water to synthesize acrylic acid can effectively alleviate the problems in these two areas.…”

“…In addition, the booming construction industry is another main thrust for the rapid growth in acrylics. Obtaining methyl acrylate using acrylic acid as the reacted material is a promising method. − The primary drawbacks of methyl acrylate hydrolysis in synthesizing acrylic acid are the high activation energy and long time to reach equilibrium . Using acetic acid instead of water to synthesize acrylic acid can effectively alleviate the problems in these two areas.…”

Efficient Conversion of Methyl Lactate to Methyl Acrylate over Cesium-Modified Al-Rich Beta Zeolites

“…We speculated that the process of alkali-metal acrylate to methyl acrylate was not a multiple-step reaction (step a to c to d to b in Scheme S1) but a one-step reaction (step a to b in Scheme S1). Acrylic acid is formed by the hydrolysis of MA. , …”

“…It is more likely to generate methyl acrylate directly. Acrylic acid may be formed by the hydrolysis of MA because MA was easily hydrolyzed. , Such a result was consistent with the hypothesis of a one-step reaction for the formation of methyl acrylate; the supporting alkali-metal acrylate intermediate could directly form methyl acrylate via reverse ion exchange with a surface methyl group (step a to b in Scheme S1).…”

“…Acrylic acid is formed by the hydrolysis of MA. 48,49 For further verification of the reaction pathway, the apparent activation barriers for methyl acrylate and acrylic acid formation (E a,MA and E a,AA , respectively) were measured (Figure 4b). The E a,MA was 169 kJ/mol, which is much lower than E a,AA (260 kJ/mol).…”