INHIBITORS OF ACID CORROSION Russian patent published in 2009 - IPC C23F11/04 

Abstract RU 2365679 C2

FIELD: chemistry.

SUBSTANCE: invention relates to field of metal protecting from acid corrosion and can be applied for protection of oil and gas pipelines, of chemical and oil-chemical equipment from acid corrosion. Inhibitor of acid corrosion of non-alloyed steels represents compound of 1-Nitro-3,3-diphenyl-1-[3-(3-nitrophenyl)-1;2,4-oxydiazol-5-yl]- 2,3-diazoprop-1-ene or compound 1-Nitro-3,3-diphenyl-1-[3-(4-chlorphenyl)-1,2,4-oxydiazol-5-yl]-2,3-diazolprop-1-ene or compound 1-Nitro-3,3-diphenyl-1(3-nitrophenyl-1,2,4-oxydiazol-5-yl)-2,3-diazoprop-1-ene and is obtained by reaction of condensation of equimolar quantities of substituted 3-aryl-5-nitromethyl-1,2,4-oxadiazol with 1,1-diphenylhydrazine in etoxyethane medium.

EFFECT: increasing degree of metal protection from corrosion and ecological safety.

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RU 2 365 679 C2

Authors

Alykov Nariman Mirzaevich

Tyrkov Aleksej Georgievich

Pichugina Ekaterina Aleksandrovna

Tyrkova Ekaterina Alekseevna

Dates

2009-08-27Published

2007-10-18Filed