FIELD: corrosion protection.
SUBSTANCE: invention relates to protection of metals against acid corrosion, in particular corrosion of steel in oil production and petrochemical industries. Inhibitor of invention contains 10 to 80% aliphatic nitrogen-containing compound, 80-10% thiourea, and 0.1-10% cupric salt.
EFFECT: enhanced protection against nitric acid corrosion, especially in dilute nitric acid medium.
1 tbl, 16 ex
Title | Year | Author | Number |
---|---|---|---|
ACID CORROSION INHIBITOR | 2015 |
|
RU2661201C1 |
INHIBITORS OF ACID CORROSION | 2007 |
|
RU2365679C2 |
ACID CORROSION INHIBITORS AND PROCEDURE FOR THEIR PRODUCTION | 2008 |
|
RU2402641C2 |
INHIBITOR OF CARBON STEEL CORROSION IN ACID MEDIUM AND METHOD OF PRODUCTION OF INHIBITED HALOID-HYDROGEN ACID | 2008 |
|
RU2383658C1 |
ACID CORROSION INHIBITOR (VARIANTS) | 1997 |
|
RU2118403C1 |
SOLID BASE OF COMPOSITION FOR ACID TREATMENT OF CRITICAL AREA OF FORMATION | 2004 |
|
RU2257467C1 |
INHIBITED HYDROCHLORIC ACID PRODUCTION PROCESS | 2003 |
|
RU2225898C1 |
INHIBITOR FOR CORROSION PROTECTION OF REACTION EQUIPMENT | 2015 |
|
RU2588615C1 |
ACID CORROSION INHIBITOR | 1999 |
|
RU2167222C1 |
CORROSION INHIBITOR OF METALS FOR ACID MEDIA | 2001 |
|
RU2265080C2 |
Authors
Dates
2005-08-27—Published
2004-04-05—Filed