Acetal preparation method
A technology of acetal and acetaldehyde, which is applied in the field of synthesis of organic compounds, can solve the problems of acid instability, unfavorable large-scale production, low output, etc., achieve lower pressure resistance performance requirements, be conducive to sustainable development, and reduce production cost effect
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[0015] Such as figure 1 Shown, a kind of preparation method of acetal of the present invention comprises the following steps:
[0016] Step 1, adding a copper-based salt to ethanol, the copper-based salt being copper acetate, causing dehydrogenation of ethanol to produce acetaldehyde;
[0017] Step 2: Add the prepared acetaldehyde into the ceramic reaction pot, and add hydrogen chloride at the same time to make the acetaldehyde polymerize to form acetal, and the polymerization reaction is to keep the temperature at 30 The reaction takes place between four hours and thirty-five degrees Celsius.
[0018] The detailed steps are as follows:
[0019] One, the preparation of acetaldehyde
[0020] Weigh 1 kg of ethanol, add 500 g of fully ground copper acetate solid (the copper acetate powder is 20-40 mesh), and produce acetaldehyde through dehydrogenation reaction.
[0021] 2. Acetaldehyde undergoes polymerization reaction to produce acetal
[0022] Take the acetaldehyde prepar...
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