2 results about "Acetoacetanilide" patented technology

This invention relates to the field of wastewater treatment technology. It discloses a wastewater treatment system for acetoaniline, comprising a shell, a liquid supply mechanism, and a recovery mechanism. The temperature control partition plate near the rectangular adsorption treatment unit is provided with a heating zone, a cooling zone, and a traction rail. The cooling zones are staggered along the X-axis. The rectangular adsorption treatment unit is driven to slide back and forth along the X-axis by the traction rail, and several rectangular adsorption treatment units distributed along the Y-axis slide back and forth alternately. This shortens the temperature change time between the initial and high-efficiency periods, thereby increasing the high-efficiency time interval and controlling the movement reaction rapidly. It is suitable for applications with high concentrations and high toxicity of organic matter, ensuring that the entire adsorption treatment system remains in a state of high-efficiency adsorption and desorption, improving adsorption effect and efficiency within the same time period and adsorption volume.

The application provides a kind of catalyst recyclable carboxin synthesis method, belong to organic synthesis technical field, comprising: the condensation reaction of alpha-chloroacetyl acetanilide and 2-mercaptoethanol under alkaline conditions, intermediate is obtained by separation;With toluene as solvent, the obtained intermediate is mixed with ionic liquid catalyst to form a reaction system, heating reaction, after the reaction is completed, the temperature of the reaction system is reduced to 5-25 DEG C, the reaction system is layered, then separation treatment is carried out, carboxin product and separated ionic liquid catalyst are obtained, then the separated ionic liquid catalyst is regenerated by dehydration and recycled;Wherein, the ionic liquid catalyst is 1-(polyethylene glycol monomethyl ether group)-3-(3-sulfopropyl) imidazole hydrogen sulfate salt.The reaction system has homogeneous high-efficiency conversion at high temperature and automatic separation at low temperature, which realizes the green upgrading of carboxin synthesis process.