Korantin PP, a new corrosion inhibitor, protects metals in contact with hot acids from BASF, features two advantages compared with other established inhibitors such as butynediol or propargyl alcohol.
Korantin PP is more effective - its consumption can therefore be reduced by 50 per cent - and its toxicological properties are more favourable.
In technical applications, for instance in cleaning boilers, stubborn deposits generally have to be dissolved with acids, which will attack not only the deposits but also the metal. The metal surfaces to be cleaned as well as the storage tanks and pipes used for cleaning must therefore be protected from corrosion. That is why corrosion inhibitors are added to acids. They will inhibit the dissolution of metal yet without interfering with the dissolution of deposits. Some of the technically most important and most effective inhibitors for use in acid baths or cleaning with acids are, unlike the BASF product, labelled ‘toxic’ and therefore subjected to extensive handling and storage restrictions.
Furthermore Korantin PP is used throughout metal processing industries for acidic pickling applications and in acidic cleaners or for pickling welded steel components.
The new inhibitor also solves problems in special applications such as crude oil production when hydrochloric acid has to be injected into the bore hole to make rock formations porous prior to extraction operations.
Because they are not soluble in highly saline aqueous solutions many corrosion inhibitors cannot be used to treat metal surfaces.
With Lugalvan P, BASF is now introducing an additive that is very soluble in saline media. The product is impervious to water hardness and protects metals against corrosion in acidic, neutral and alkaline media.
Being very soluble, the inhibitor is easy to formulate and is also suitable for use in cleaning concentrates.
Each year industrial countries lose three percent of their gross domestic product to corrosion of consumer goods and production equipment. Corrosion prevention will therefore contribute to the
sustainability of national economies. BASF markets a broad palette of corrosion inhibitors used in numerous chemical products for treating metal surfaces, for cleaning and as additives.
For more information, visit www.basf.com
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