Method for preparing tetraenol from production waste liquid of 1-chloro prenyl
A kind of chloroisoamylene, carbopentaenol technology, applied in hydrolysis preparation, organic chemistry and other directions, to achieve considerable economic and social benefits, reduce production costs, reduce pollution effects
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Embodiment 1～12
[0032] The test raw material is the production waste liquid produced by the process of obtaining 1-chloroisopentene from isoprene through hydrogen chloride addition reaction, isomerization reaction and product refining, which contains 70.5wt% of dichloroisopentane, Other components are a small amount of chlorinated isopentene, isoprene, and some other chlorinated organic compounds.
[0033] In a 1.0-L reaction kettle equipped with a mechanical stirring device, a spherical condenser and a thermometer, 100 grams of the above-mentioned test raw materials were put in. Weigh the required amount of water, inorganic strong base and catalyst, dissolve the inorganic strong base into water, and then put the aqueous alkali solution and catalyst into the reaction kettle. The reaction was carried out after the temperature was gradually raised to the set value under stirring, and the reaction was completed within the set time. The reactant was cooled down, left to stand for stratification,...
Embodiment 13～22
[0044] After mixing the oil phase materials obtained in Examples 1 to 12, three steps of rectification are carried out in sequence, and the first to third steps of rectification correspond to process 3) to process 5) in the above technical scheme, respectively.
[0045] 1) The first step of rectification:
[0046] A thermometer and a rectifying column were installed in a three-necked flask with a capacity of 1 L, the rectifying column was filled with packing, and the theoretical plate number of the rectifying column was 30. The oil phase material obtained in the above-mentioned embodiments 1~12 is rectified and separated in this rectification device, and the tower bottom material and the tower top material are obtained respectively;
[0047] 2) Second step rectification:
[0048] A thermometer and a rectifying column were installed in a three-necked flask with a capacity of 1 L, the rectifying column was filled with packing, and the theoretical plate number of the rectifying ...
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