Process to remove corrosion deposits using aqueous-base ferromag

Cleaning and liquid contact with solids – Processes – For metallic – siliceous – or calcareous basework – including...

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134 3, 134 41, 134 42, 252DIG14, 252 891, 252173, 25217425, 252530, 252557, 252558, C23G 100

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active

044459408

ABSTRACT:
A process for the removal of corrosion deposits from metal surfaces using a ferromagnetic fluid is disclosed.

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patent: 4093778 (1978-06-01), Reven
CA 90333c, 77, 1969--Rust Removal from Metals Using Lignosulfonic Acid Compositions.
CA 85:64865y, 85, 1976--Preparation of the Rust Converter PRL-2 from Hydrolytic Lignin, (Russian).
CA 88:8735f, 88, 1978--Modification of Lignin by Phosphorylation and Amination, (Russian).
CA 83:62155b, 83, 1975--Preparation of the Rust Remover PRL-2 from Hydrolysis Lignin, (Russian).
CA 90:170390c, 90, 1979--Ammonolysis of Hydrolytic Lignin for Preparing a Rust Inhibitor, (Russian).

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