Process and device for recycling waste acid produced in process of producing zoalene

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United States of America Patent

PATENT NO 9527801
APP PUB NO 20160185711A1
SERIAL NO

14978556

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
ZHEJIANG RONGYAO BIOTECH CO LTD317016 CHEMICAL RAW MATERIAL DRUG BASE LINHAI CITY TAIZHOU CITY ZHEJIANG PROVINCE CHINA NO 30 DUCHUAN SOUTH ROAD LINHAI PARK TAIZHOU CITY ZHEJIANG PROVINCE 317016

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Jianhua Zhejiang, CN 155 2004
Chen, Rener Zhejiang, CN 3 0
Shi, Fei Zhejiang, CN 9 29
Zhang, Na Zhejiang, CN 248 911

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