Continuous production method for isobornyl methacrylate

• Main Author: JIANG MEIFANG
• Format: Patent
• Language: Chinese; English
• Published: 17.08.2018
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; ORGANIC CHEMISTRY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention discloses a continuous production method for isobornyl methacrylate. The method comprises the following steps: (1) putting methacrylic acid and camphene into a reaction kettle, after themethacrylic acid and the camphene are completely dissolved at room temperature, adding a polymerization inhibitor and a catalyst, performing a reaction, and performing filtration to obtain a reactionmixed liquid; (2) replenishing a polymerization inhibitor into the reaction mixed liquid, performing distillation to obtain unreacted methacrylic acid and camphene under negative pressure of 0.01-0.05 MPa, and collecting a fraction at the temperature of 113-120 DEG C and pressure of 0.6 kPa to obtain the isobornyl methacrylate; (3) putting the unreacted methacrylic acid and camphene into a secondary reaction kettle, performing a reaction, and performing filtration to obtain a secondary reaction mixed liquid; and (4) performing the step (2) and the step (3) on the secondary reaction mixed liquid repeatedly in sequence