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51312-01154-NOVEL VAPOR CORROSION INHIBITORS DERIVED FROM AGRI-PRODUCTS

Product Number: 51312-01154-SG
ISBN: 01154 2012 CP
Author: Josh Hicks
Publication Date: 2012
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$20.00
$20.00
The annual cost of corrosion in the United States alone is estimated to be greater than $300 billion. To combat this issue approximately $121 billion per year are spent on methods to prevent and control corrosion. Some of the techniques implemented include: material selection cathodic protection protective coatings and corrosion inhibitors. In a search to find new technologies for the aforementioned techniques products that are made from renewable biodegradable and non-hazardous raw materials have become of particular interest due to a growing consciousness of environmental concerns. As government policy continues to promote green alternatives to petrochemicals the availability and utility of agricultural by-products will become economically advantageous. The corrosion inhibitive properties of corn-based by-products were evaluated and screened to identify potential applications. The properties evaluated included contact- and vapor-phase corrosion inhibition as well as the ability to act as a barrier against corrosive environments such as high acid concentration and salt solutions. Rust and scale removing properties were also tested. During these investigations it was discovered that a solvent extract from DDGS demonstrated very good corrosion protection properties for steel in acidic environments. A variety of plant extracts have been shown to inhibit corrosion of steel in acidic conditions but such activity has not previously been demonstrated with corn extracts. Aqueous corn extracts also proved to provide corrosion protection when used as an inhibitor in de-icing compounds. The details of these findings and potential applications are reported herein.
The annual cost of corrosion in the United States alone is estimated to be greater than $300 billion. To combat this issue approximately $121 billion per year are spent on methods to prevent and control corrosion. Some of the techniques implemented include: material selection cathodic protection protective coatings and corrosion inhibitors. In a search to find new technologies for the aforementioned techniques products that are made from renewable biodegradable and non-hazardous raw materials have become of particular interest due to a growing consciousness of environmental concerns. As government policy continues to promote green alternatives to petrochemicals the availability and utility of agricultural by-products will become economically advantageous. The corrosion inhibitive properties of corn-based by-products were evaluated and screened to identify potential applications. The properties evaluated included contact- and vapor-phase corrosion inhibition as well as the ability to act as a barrier against corrosive environments such as high acid concentration and salt solutions. Rust and scale removing properties were also tested. During these investigations it was discovered that a solvent extract from DDGS demonstrated very good corrosion protection properties for steel in acidic environments. A variety of plant extracts have been shown to inhibit corrosion of steel in acidic conditions but such activity has not previously been demonstrated with corn extracts. Aqueous corn extracts also proved to provide corrosion protection when used as an inhibitor in de-icing compounds. The details of these findings and potential applications are reported herein.
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