Corrosion inhibitor for soft water circulation heating and cooling system and preparation method of corrosion inhibitor

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United States of America Patent

PATENT NO 11781068
APP PUB NO 20200392407A1
SERIAL NO

17005322

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Abstract

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A corrosion inhibitor for a soft water circulation heating and cooling system, wherein the corrosion inhibitor is pentapentanol core hyperbranched macromolecule functionalized by isothiourea and carboxyl, which has a chemical formula of C5H7O5{COC(CH3)[CH2OCOCH2CH(COOH)SC(NH)NH2]2}5. The corrosion inhibitor provided by the present invention is non-phosphorus, biodegradable, non-toxic, low in cost and has good corrosion inhibition effect. Moreover, it has excellent corrosion inhibition performance for circulating heating and cooling systems using soft water as the water source, and can significantly improve the reuse rate of circulating water. The present invention also provides a preparation method of the corrosion inhibitor, which is simple, easy to obtain raw materials and easy to industrialize.

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Patent Owner(s)

Patent OwnerAddress
SHANGHAI CEO ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD200438 ROOM 801 BUILDING A7 LANE 1688 GUOQUAN NORTH ROAD YANGPU DISTRICT SHANGHAI SHANGHAI CITY SHANGHAI CITY 200438

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Chunjiang Shanghai, CN 7 4
Li, Fengting Shanghai, CN 18 6
Lu, Yufei Shanghai, CN 13 10
Qu, Xianwei Shanghai, CN 1 0
Zhang, Bingru Shanghai, CN 10 6

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