Production method of 3-chloropropionic acid
A production method and technology of chloropropionic acid, applied in chemical instruments and methods, separation/purification of carboxylic acid compounds, preparation of carboxylate salts, etc., can solve problems such as uneconomical, loss of yield, corrosion of equipment by decomposition of hydrogen chloride, etc. , to achieve the effect of increasing production
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[0028] 1. Assembly of continuous reactor:
[0029] Select 4 ordinary 1000L glass-lined reactors, and connect the 4 glass-lined reactors in series in 4 stages. There is a drop of 1 meter between the two directly connected glass-lined reactors, and the glass-lined reactor with the highest height from the ground is the first stage. Reactors, and then as the height of each glass-lined reactor and the ground decreases, they are respectively the second-stage reactor, the third-stage reactor and the fourth-stage reactor. The feed port of the glass-lined reactor is connected by a pipeline, and the gas outlet of each level of glass-lined reactor is connected with the air inlet of the next-stage glass-lined reactor by pipeline. After the assembly is completed, a continuous reactor is obtained;
[0030] 2, Preparation of 3-chloropropionic acid:
[0031] 2.1. First vacuumize the continuous reactor, replace it with nitrogen twice and discharge nitrogen, then vacuumize, start adding 720kg ...
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