Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent

CCHEMISTRY METALLURGY C23Surface treatment C23FNON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25

C23F11/00Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent

C23F11/02in air or gases by adding vapour phase inhibitors C23F11/04in markedly acid liquids C23F11/06in markedly alkaline liquids C23F11/08in other liquids C23F11/10using organic inhibitors C23F11/12Oxygen-containing compounds C23F11/122Alcohols Aldehydes Ketones C23F11/124Carboxylic acids C23F11/126Aliphatic acids C23F11/128Esters of carboxylic acids C23F11/14Nitrogen containing compounds C23F11/141Amines Quaternary ammonium compounds C23F11/142Hydroxy amines C23F11/143Salts of amines C23F11/144Aminocarboxylic acids C23F11/145Amides N-substituded amides C23F11/146containing a multiple nitrogen-to-carbon bond C23F11/147containing a nitrogen-to-oxygen bond C23F11/148containing a nitrogen-to-nitrogen bond C23F11/149Heterocyclic compounds containing nitrogen as hetero atom C23F11/16Sulfur containing compounds C23F11/161Mercaptans C23F11/162Thioaldehydes Thioketones C23F11/163Sulfonic acids C23F11/164containing a -SO2-N group C23F11/165Heterocyclic compounds containing sulfur as hetero atom C23F11/167Phosphorus-containing compounds C23F11/1673Esters of phosphoric or thiophosphoric acids C23F11/1676Phosphonic acids C23F11/173Macromolecular compounds C23F11/18using inorganic inhibitors C23F11/181Nitrogen containing compounds C23F11/182Sulfur, boron or silicon containing compounds C23F11/184Phosphorous, arsenic, antimony or bismuth containing compound C23F11/185Refractory metal-containing compounds C23F11/187Mixtures of inorganic inhibitors C23F11/188containing phosphates