Magnetic catalyst and method for compounding N, N-diethyl M-methyl Benzoyl amide) by magnetic field fluidized bed

• Main Authors: YANG YALING, XIE WEIYUE, ZENG PING, ZHANG YUYI, WEI PANZHONG
• Format: Patent
• Language: Chinese; English
• Published: 16.03.2018
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a magnetic catalyst and a method for compounding N, N-diethyl M-methyl Benzoyl amide) by a magnetic field fluidized bed. In the magnetic catalyst Fe3O4@SiO2@NaH2PO4, the mole ratio of Fe3O4, tetraethoxysilane and NaH2PO4 is 1.0: (1.0-20.0): (0.1-5.0). The method for compounding N, N-diethyl M-methyl Benzoyl amide) by the magnetic field fluidized bed includes steps of step one, adding M-methyl Benzoyl amide in a flask, and slowly adding diethylamine; under the stirring, reacting and generating the M-diethylamine methyl benzoate complex; step two, continuously feeding anddewatering the M-diethylamine methyl benzoate complex in the magnetic field fluidized bed to obtain a coarse product of N, N-diethyl M-methyl Benzoyl amide; the magnetic catalyst is filled in the magnetic field fluidized bed; the magnetic catalyst can be regenerated for many times, the utilization rate is high; the catalyst is fluidized in the bed body, the specific area is big and the reaction conversion is quick; the m