2006-07-12 News Headlines

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Corrosion inhibitor chemicals protect metals

BASF business unit Performance Chemicals features new corrosion inhibitors that inhibit the dissolution of metals without interfering with the dissolution of deposits.

Korantin* PP, a new corrosion inhibitor from BASF, features two advantages compared to other established inhibitors such as butynediol or propargyl alcohol. Korantin PP is more effective - its consumption can therefore be reduced by 50 % - and its toxicological properties are more favorable.

Korantin corrosion inhibitors are used in water treatment, petrochemical applications, oil and gas production, metalworking fluids, metal surface treatment, finishing, and in many other applications.

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, labeled “toxic” and therefore subjected to extensive handling and storage restrictions.

Korantin PP, a new corrosion inhibitor, protects metals in contact with hot acids. Click Go for larger image. photo: BASF

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. “Under the extremely high pressures and temperatures, exceed-ing 100o Celsius, in well heads, Korantin PP works very effectively in protecting steel drill rods,” reports Uwe Ossmer, responsible for Oil Field Industry Management at BASF. He went on to say: ”Based on this protective effect against hydrochloric acid, Korantin PP has become solidly and quickly established among companies servicing oil fields.”

Lugalvan P, a new corrosion inhibitor for saline, aqueous solutions, is easy to formulate
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. Dr. Helmut Witteler, a chemist who heads BASF’s product development for metal surface treatment, explained: “Our new inhibitor is extremely versatile. It is being used in galvanoplating, descaling boilers, prevent-ing deposits and inhibiting corrosion in crude oil production. Lugalvan P is applied whenever its effectiveness as an inhibitor but also its compatibility with hard water or saline media are required.” 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. Find Information about Korantin.

Performance Chemicals from BASF
The line of products marketed by BASF’s business unit “Performance Chemicals for Detergents/Cleaning Products and Formulators” encompasses products for metal surface treatment, corrosion inhibitors, oil field chemicals, water-soluble polymers for detergents and technical applications as well as detergent additives such as color transfer inhibitors, nonionic surfactants, polyalkylene glycols, emulsifiers, antifoams, complexing agents, polyethylene waxes, montan waxes and wax emul-sions, biocides as well as dispersants. BASF is one of the world’s leading manufacturers of these products.

Read a recent press release from BASF about - 'BASF launches Pluracoat specialty additives for coatings, adhesives and sealants, a portfolio of functional platforms addressing a broad range of needs and applications.'

Find Information and Suppliers of corrosion inhibitors.

* Lugalvan and Korantin are registered trademarks of BASF.

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