Method for recycling waste gas ozone discharged in synthesis of key midbody 4AA of carbine penicillin

Abstract

The invention provides a method for recycling waste gas ozone discharged in the synthesis of a key midbody 4AA of carbine penicillin. The method comprises the following steps: introducing the ozone discharged by the tail gas into waste water containing a great amount of macro-molecular organic matters, and oxidizing the macro-molecular organic matters. By adopting the method, not only is the exhaust problem of the ozone solved, but also the concentration of the macro-molecular organic matters in the waste water is also reduced, and the environmental protection and the economic benefit can be realized.

Description

technical field [0001] The invention belongs to a method for reusing tail gas, in particular to a method for reusing exhaust gas ozone discharged from the synthesis of carbapenicillin key intermediate 4AA. Background technique [0002] The ozone oxidation deprotection machine is used in the synthesis of the key intermediate 4AA of carbapenicillin. Since the ozone gas used in the synthesis undergoes a gas-liquid reaction with the methanol liquid of the reaction substrate, the ozone that is too late to react during the reaction must be removed from the tail gas. Discharge at high altitude. Through detection, it is found that in the later stage of the reaction, the ozone content in the tail gas is relatively high, and it is directly discharged into the air, which has a certain impact on the surrounding environment. At the same time, the wastewater generated in the factory contains a large amount of high-molecular organic matter, which makes the wastewater have a very high appe...

AI Technical Summary

Problems solved by technology

Through testing, it is found that in the late stage of the reaction, the ozone content in the exhaust gas is relatively high, and it is directly discharged into the air, which has a certain impact on the surrounding environment.

At the same time, the wastewater generated in the factory contains a large amount of high-molecular organic matter, which makes the wastewater have a very high appearance, odor, and total COD, which is not conducive to the later wastewater treatment, and also causes poor environmental quality in the workshop.