Phosphorus thioacid ester inhibitor for naphthenic acid corrosio

Compositions – Preservative agents – Anti-corrosion

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252395, 422 7, 208 47, 203 7, 585950, C23F 1116, C23F 11167

Patent

active

055520855

ABSTRACT:
Corrosion of the metallic surfaces of distillation columns, trays, packing, and pumparound piping used in the production of hydrocarbons can be controlled by adding a neutralized or non-neutralized thio-phosphate or thio-phosphite ester to the hydrocarbon distillate contacting the metallic surfaces.

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