Diethyl adipate, hydrolysis

Figure 4.7 shows a part of network Mathcad calculations of the rate constants for diethyl adipate hydrolysis with the corresponding confidence intervals. 

FIGURE 3.11 Temperature (left) and concentration (right) profiles in a homogeneous tube reactor. Curve 1—adiabatic reactor curve 2— small heat transfer coefficient curves 3 and 4—intermediate heat transfer coefficient and curve 5— very high heat transfer coefficient. Saponification of ethyl adipate with NaOH [3] A + B R + E,A = diethyl adipate, B = NaOH, E = ethanol R-FB- S-FE, R = primary hydrolysis product, and S = secondary hydrolysis product (Na salt of adipic acid). 

Linearization with Numerical Integration of Kinetic Data Basic Hydrolysis of Diethyl Adipate... 

This mechanism corresponds, in particular, to the reaction of basic hydrolysis of diethyl adipate. Here Ai is NaOH A2 is diethyl adipate A3 is monoethyl adipate A4 is ethanol A5 is adipic acid. The scheme is represented by the following mathematical model of a competitive reaction ... 

This second step yields about 85% of the dimethyl adipate. The main by-products are about 10% dimethyl methyl glutarate, 3% dimethyl ethyl succinate, 1% dimethyl diethyl succinate, and 1% methyl pentanoates. The dimethyl adipate is isolated by distillation and converted to adipic acid by hydrolysis. 

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