Methods and compositions to prevent caking of sodium chloride and prevent transition metal stains
AssigneeCompass Minerals America Inc.
InventorsGeoffrey A. Brown, Joshua M. Shipman
Life of this patent
Estimating the term…
Abstract
Anticaking agents for inhibiting or preventing caking of inorganic salt granules are provided. The anticaking agents comprise a coordination complex of iron and a salt anion of an organic acid, wherein the salt anion is selected from the group consisting of malate, polyacrylate, diphosphonate, and mixtures thereof. Free-flowing, solid salt compositions resistant to caking are also described herein, along with methods of melting ice and/or snow on a surface or inhibiting the accumulation or formation of ice and/or snow on a surface, and methods of preventing or inhibiting caking of solid inorganic salt granules.
Claims25
A free-flowing, solid salt composition comprising:
- an inorganic salt;
- an anticaking agent for inhibiting or preventing caking of inorganic salt granules, said anticaking agent comprising a coordination complex of iron and a salt anion of an organic acid, wherein said salt anion is selected from the group consisting of malates, polyacrylates, diphosphonates, and mixtures thereof;
- and
- wherein said solid salt composition is resistant to caking.
A method of preventing or inhibiting caking of solid inorganic salt granules, said method comprising:
- providing an anticaking agent dispersed or dissolved in a solvent system, said anticaking agent comprising a coordination complex of iron and a salt anion of an organic acid, wherein said salt anion is selected from the group consisting of malates, polyacrylates, diphosphonates, and mixtures thereof;
- and
- applying said anticaking agent to said inorganic salt granules to yield a solid salt composition comprising said anticaking agent and a quantity of treated inorganic salt granules, wherein said solid salt composition is resistant to caking.
Dependencies are inferred from the claim text.