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Process and device for recycling waste acid produced in process of producing zoalene
A process and a device for recycling waste acid produced in the process of producing Zoalene. The process comprises steps: heating, depressurizing and distilling the waste acid recycled after nitration reaction; collecting acid liquid A and distilled water A; mixing the acid liquid A with new concentrated sulfuric acid in proportion, and putting the mixture to a new Zoalene nitration reaction process; and putting the distilled water A into a diluting pot for diluting the liquid produced in the nitration reaction. The waste acid produced in the process of producing Zoalene is recycled and not directly discharged; water resources are recycled, waste of the water resources is reduced, and discharge of waste water produced in the process of producing Zoalene is greatly reduced, so that not only production cost is saved, but also environment pressure is reduced.
ZHEJIANG RONGYAO BIOTECH CO., LTD.
C C C C
C07C C07C C07C C01B
inventional inventional inventional inventional
Rener Na Jianhua Fei
Chen Zhang Chen Shi