My research group is trying to develop such inhibitors for corrosion of metals. In fact most publications in this area are evaluative in nature, as only the potentials of many plant extracts. I think its time to get the real active components of these extracts and develop them into anti-corrosion agents.
Thanks
Not sure about patenting, but Westwaco's lignosulphonates may have been offered as inhibitors. They are the byproduct of wood pulping
The present invention relates to the use of fruit skin extracts as corrosion inhibitors, more particularly to the use of the skin of fruits such as mango, cashew, passion-fruit and orange, inter alia, more specifically as corrosion inhibitors for steel in an acid medium, preferably carbon steel 1020 in a 1 mole/L−1 hydrochloric acid medium, and also for various types of steel, metals such as copper and copper alloys, inter alia, in neutral and basic media, and to the process for producing same.
cashew nut testa has been tested and is effective as corrosion inhibitor of mild steel and aluminium.It is not yet patented.
You may check on green leaf of Bambusa arundinacea as green corrosion inhibitor. This materials was studied to inhibit corrosion of reinforcement bar in concrete recently.
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