Cyclopentaol preparing and refining method
A technology for cyclopentanol and cyclopentene is applied in the field of preparation and purification of cyclopentanol, and can solve the problems of large circulation amount of raw material cyclopentene, low reaction conversion rate and the like
Active Publication Date: 2005-10-05
SINOPEC SHANGHAI PETROCHEMICAL CO LTD
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Abstract
This invention is cyclopentanol making and refining method, including the procedure: 1) in the existence of catalyst cyclopentene pass hydration reaction in solvent phenylic acid. the mole ratio of cyclopentene and water is 0.8-5.0, reaction temperature 130-180deg.C, reaction pressure 1.0-3.0MPa and reaction time 1-5 hours, the catalyst comprises the main catalyst and activator, the catalyst is strong acid cation exchange resin with sulfo group anchored on the surface, and the activating solvent is trialkylamine. The dosage of catalysts are: cyclopentene/ main catalyst=(10-30)/1; activator/ main catalyst=(0.1-5)/100. The reacted materials cool to house temperature and demix into oil phase and aqueous phase, the oil phase materials through continuous distilling to cut 38-55deg.C cuts to cool and get cyclopentene, and cut 135-165deg.C cuts to cooling collect refined cyclepentanol, the residue is material full of phenylic acid.
Application Domain
Organic compound preparationPreparation by hydroxy group addition
Technology Topic
SolventPhenylic acid +11
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