초록 ▼

This invention relates to corrosion inhibitors of steels, particularly carbon steels or low-alloy steels. They are ternary mixtures with synergetic action containing at least one strong base, at least one molybdate and at least one phosphate. This invention also relates to aqueous compositions of al

This invention relates to corrosion inhibitors of steels, particularly carbon steels or low-alloy steels. They are ternary mixtures with synergetic action containing at least one strong base, at least one molybdate and at least one phosphate. This invention also relates to aqueous compositions of alkali metal halide containing said inhibitors. Such compositions are advantageously used as working fluid in high temperature absorption heat pump systems.

대표청구항 ▼

A corrosion-inhibiting agent comprising a ternary mixture of inorganic compounds containing at least one strong base, at least one molybdate and at least one inorganic phosphate, said ternary mixture being adapted for inhibiting the corrosion of steels in contact with aqueous compositions of alkali

A corrosion-inhibiting agent comprising a ternary mixture of inorganic compounds containing at least one strong base, at least one molybdate and at least one inorganic phosphate, said ternary mixture being adapted for inhibiting the corrosion of steels in contact with aqueous compositions of alkali metal halide at concentrations of said halide above 60% by weight and at temperatures above 160°. A method for inhibiting the corrosive effects of an aqueous composition of alkali metal halide upon steels when such composition is used as a working fluid in high temperature absorption heat pump systems, said method comprising adding to said composition a ternary mixture of inorganic compounds comprising at least one strong base, at least one molybdate, and at least one inorganic phosphate.