Acetylated castor

Simulation of a batch reactor for the hydrolysis of acetylated castor oil... 

Nonisothermal reaction in a batch reactor Acetylated Castor Oil Hydrolysis... 

The batch decomposition of acetylated castor oil to drying oil proceeds via the following reaction ... 

Acetylated Castor Oil ----> Drying Oil -i- Acetic Acid Vapour... 

Acetylated castor oil is hydrolyzed for the manufacture of drying oils in kettles operated batchwise. The charges are 277 kg and the initial temperature is 613 k. Complete hydrolysis yields 0.156 kg acetic acid per kg of ester. For this reaction the specific rate has been found to be k exp(35.2-22450/T), 1/min, T°K (1)... 

CASTOR - Batch Decomposition of Acetylated Castor Oil System... 

Batch Decomposition of Acetylated Castor Oil 243 Dispersion Model for Chromatography Columns 483 Stagewise Model for Chromatography Columns 486 Complex Reaction 237 Continuous Flow Tank 406... 

This problem is adapted from a problem given by Smith [23]. To illustrate the method for sizing a bateh reactor outlined in Table 7.8, consider the production of drying oil from acetylated Castor oil. Drying oils are added to paints to aid the formation of a protective coating when drying. Acetylated Castor oil (AO) decomposes according to the first order reaction,... 

The reaction is a first order with respect to a pseudo concentration of acetic acid in acetylated castor oil, i.e., moles of acetic acid per imit volume of castor oil. rA = k Ca rA = moles of acid/unit voliune-imit time... 

Now, we have to decide on how to remove the enthalpy of reaction - using a jacket, a coil, a coil and a jacket or an external heat exchanger. First, check if a jacket will suffice. Because the reaction is an unsteady-state process, the heat transfer will vary with time. Initially, the reaction rate will be a maximum because the concentration of acetylated castor oil (AO) is at its maximum value. As the reaction proceeds, the concentration of acetylated oil will decrease, as will the heat-transfer rate. In this problem Aha is given. Thus, we do not need Equations 7.8.2 and 7.8.18 to 7.8.20. From Equation 7.8.4, calculate the initial rate of reac-tiom... 

Example 5-1 In a study of the production of drying oils by the decomposition of acetylated castor oil, Grummitt and Fleming were able to correlate decomposition data on the basis of a first-order reaction written as... 

If a batch reactor initially contains 500 lb of acetylated castor oil at 340°C (density 0.90) and the operation is adiabatic, plot curves of conversion (fraction of the acetylated oil that is decomposed) and temperature vs time. It is estimated that the endothermic heat effect for this reaction is 15,000 cal/g mole of acetic acid vapor. The acetylated oil charged to the reactor contains 0.156 g of equivalent acetic acid per gram of oil i.e., complete decomposition of 1 g of the oil would yield 0.156 g of acetic acid. Assume that the specific heat of the liquid reaction mixture is constant and equal to 0.6 Btu/(lb)(°F). Also assume that the acetic acid vapor produced leaves the reactor at the temperature of the reaction mixture. 

A reactor for the production of drying oils by the decomposition of acetylated castor oil is to be designed for a conversion of 70%. The initial charge will be 500 lb and the initial temperature 340°C, as in Example 5-1. In fact, all the conditions of Example 5-1 apply, except instead of adiabatic operation, heat will be supplied electrically with a cal-rod unit in the form of a l-in.-OD coil inraiersed in the reaction mixture. The power input and the stirring in the reactor will be such that the surface temperature of the heater is maintained constant at 700°K. The heat-transfer coefficient may be taken equal to 60 Btu/ (hr)(ft )(°F). What length of heater will be required if the conversion of 70% is to be obtained in 20 min ... 

Acetyl anhydride. See Acetic anhydride 4-Acetylanisole p-Acetylanisole. See Acetanisole Acetylated castor oil... 

Castor oil, acetylated. See Acetylated castor oil Glyceryl triacetyl ricinoleate Castor oil, acetylated and hydrogenated. See Glyceryl (triacetoxystearate)... 

Acetamidoethoxybutyl trimonium chloride 6-(N-Acetylamino)-4-oxahexyltrimonium chloride Acetylated castor oil Acetylated cetyl hydroxyprolinate Acetylated glycol stearate... 

Carrot (Daucus carota) extract Carrot (Daucus carota sativa) juice Carrot (Daucus carota) seed extract 84929-62-4 Acetylated castor oil 84929-74-8 Gatuline A... 

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