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
1 Cites 6 Cited by
AI-Extracted Technical Summary
Problems solved by technology
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.
Organic compound preparationPreparation by hydroxy group addition
SolventPhenylic acid +11
- Experimental program(2)
Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.