Acrylic acid batch reactors

As in any type of polymerization, a batch reaction is not as commercially attractive as a continuous polymerization process that can produce larger quantities of polymer in the same amount of time. The first continuous polymerizations in C02 were reported (Charpentier et al., 1999) with the monomers acrylic acid and vinylidene fluoride. The vinylidene fluoride polymerization was extensively studied at 75 °C, 275 bar. The polymerizations were run with residence times that varied between 15 and 40 min in a continuous-stirred-tank reactor before collection in a filter. The maximum rate of polymerization was determined to be 19 x 10 5 mol L-1s-1. Future research will move toward continuous removal of polymer, recycling of unreacted monomer and C02, and expansion to other monomers. 

This paper reports measuremerts of reaction kinetics for sulfonation of maleic, fumaric, and acrylic acids by sulfite addition and for hydration of acrylic acid with catalysis by H2SO4 or cation exchange resin. The kinetics were measured by sampling of isothermal batch reactors. 

Chromatographic batch reactors are employed to prepare instable reagents on the laboratory scale (Coca et al., 1993) and for the production of fine chemicals. These applications include the racemic resolution of amino acid esters (Kalbe, Hbcker, and Berndt, 1989), acid-catalyzed sucrose inversion (Lauer, 1980) and production of dextran (Zafar and Barker, 1988). Sardin, Schweich, and Viller-maux (1993) employed batch chromatographic reactors for different esterification reactions such as the esterification of acetic acid with ethanol and the transesterification of methylacetate. Falk and Seidel-Morgenstern (2002) have investigated the hydrolysis of methyl formate. Strohlein et al. (2006) measured the esterification of acrylic acid with methanol and validated the transport dispersive model for process simulation. 

Yang, J. I., Cho, S. H., Park, J., Lee, K. Y. (2007). Esterification of acrylic acid with 1, 4-butanediol in a batch distillation column reactor over amberlyst 15 catalyst. The Canadian Journal of Chemical Engineering, 85, 883—888. 

The acid-epoxide reaction is straightforward and is catalysed by tertiary amines, phosphines or ammonium salts. Vinyl ester resins are diluted with a reactive monomer such as styrene, vinyl toluene or dicyclopentadiene acrylate. Similar to other unsaturated polyesters, the production of vinyl esters is carried out in batch reactors. The basic steps of the process are ... 

Acrylic acid. Butanol Amberlyst-15 cation exchange resin Batch reactor. Temp = 333-364 K Darge (1993)... 

Saha B. and M. M. Sharma, Esterification of formic acid, acrylic acid and methacrylic acid with cyclohexene in batch and distillation column reactors Ion-exchange resins as catalysts. React. Fund Polym. 28, 263-278 (1996). 

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