Corrosion inhibition of calcium chloride brine
AssigneeBetz Laboratories, Inc.
InventorsSuzanne M. Zefferi, Roger C. May
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Abstract
A method of inhibiting corrosion of metals such as low carbon steel in contact with calcium chloride brine comprising adding to the brine or to the salt prior to dissolution 2-hydroxyphosphono-acetic acid.
Claims3
A method of inhibiting corrosion of metal surfaces in contact with calcium chloride brines comprising adding to a calcium chloride brine an inhibitor comprising 2-hydroxyphosphonoacetic acid in amounts from about 240 to 1000 parts per million.
A composition of calcium chloride brine which includes a sufficient amount of 2-hydroxyphosphonoacetic acid to inhibit corrosion of low carbon steel in contact with said composition.
Dependencies are inferred from the claim text.