Production equipment and production method of ethyl acetate
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A technology of ethyl acetate and production equipment, which is applied in the field of ethyl acetate production, and can solve the problems of large consumption of cooling capacity, affecting the yield of ethyl acetate, loss of ethanol and ethyl acetate, etc.
Pending Publication Date: 2021-04-16
NANYANG NORMAL UNIV
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Ethanol, another raw material of aluminum triethoxide, also has a large loss of ethanol and ethyl acetate because ethanol is easily soluble in water when aluminum triethoxide is destroyed by hydrolysis.
Ethanol and water remaining in the organic phase of ethyl acetate also increase the difficulty of ethyl acetate distillation and purification and affect the yield of ethyl acetate
In addition, acetaldehyde, the pro
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Embodiment 1
[0127] Embodiment 1: In this embodiment, the position of the collection port of the circulating reaction fluid is indicated by the readings on the axial movement drive mechanism and the rotation drive mechanism, which are respectively: 10 cm in the axial direction and 120° in the radial direction. The data is based on the corresponding starting position, and the specific starting position will be described in the following steps.
[0128] 1. Equipment selection
[0129] 1. Key data of split tank: the diameter of cylindrical section 100 is 3m, the height is 0.75m, the height of upper circular platform section 101 is 0.9m, the height of lower circular platform section 102 is 0.6m, and the volume of divided tank is 8.84m3. The diameter of the water vapor collection port 331 is 9.84cm, the diameter of the acetaldehyde vapor collection port 332 is 15.21cm, the diameter of the first blocking disk 904 is 49.05cm, the width of the first collection slit 907 is 3.24cm, and the diameter ...
Embodiment 2
[0170] Embodiment 2: Compared with Embodiment 1, the calculation method of reaction temperature, pressure, raw material ratio after realizing continuous reaction, operation process, spatial position of circulating reaction fluid collection port, material balance and kinetic energy balance in this embodiment, And gas chromatographic analysis method is all identical with the best state of embodiment 1, and difference is that the total input amount of acetaldehyde increases to 6.4kg / min by 6.00kg / min, and need not refill catalyst ethyl ester solution. Correspondingly, the measuring and controlling instrument of the material flow and the measuring and controlling instrument of the cooling water are reset as follows.
[0171] 1. The ratio of reactants to products
[0172] Anhydrous acetaldehyde (97%) 6.40kg / min
[0173] Ethyl acetate (≥99%) 6.21kg / min
[0174] Acetal (95±0.2%) 0.166kg / min
[0175] 2. According to the proportion of step 1, divide the total flow of acetaldehyde in...
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Abstract
The invention discloses production equipment and a production method of ethyl acetate. The production equipment comprises a separation and reaction tank consisting of an upper circular truncated cone section, a cylindrical section and a lower circular truncated cone section, a catalyst isolator is arranged in the separation and reaction tank, and a plurality of tangentially fed feeding nozzle pipes and a plurality of tangentially fed circulating reaction fluid inlets are arranged on the outer wall of the cylindrical section; a gas collecting and separating pipe is arranged at the top of the upper circular truncated cone section and is respectively connected with a water vapor collecting device and an acetaldehyde vapor return pipe through different tangential outlets; a collecting pipe is arranged at the bottom of the lower circular truncated cone section, tangential outlets in different positions of the collecting pipe are respectively connected with an ethyl acetate collecting device, a sediment collecting device and a circulating reaction fluid collecting device, and an acetaldehyde steam return pipe is connected with the separation and reaction tank through the circulating reaction fluid collecting device. According to the production method of the equipment, water and byproducts can be discharged out of the separation and reaction tank, the concentration of the catalyst is increased, the reaction rate is increased, acetaldehyde can be preheated by utilizing reaction heat, and the cold consumption is reduced, so that the production cost is reduced.
Description
technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a production equipment for producing ethyl acetate by using acetaldehyde and a production method for ethyl acetate using the equipment. Background technique [0002] Ethyl acetate is a commonly used basic chemical raw material and is widely used in the chemical industry. The earliest synthetic method is to use concentrated sulfuric acid to catalyze the reaction of acetic acid and ethanol. However, this method has serious corrosion on equipment, low yield, many by-products, and relatively difficult product purification. To this end, people have successively developed ① phosphomolybdic acid catalyzed acetic acid ethanol synthesis method, ② ethanol dehydrogenation oxidation method, ③ vinyl acetate addition method, ④ triethanol aluminum catalyzed acetaldehyde production method. Among them, ① the catalyst is expensive and prone to failure, ②, ③ the reaction tem...
Claims
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