Calgon Corporation

Jerry L Walker

Bennett P Boffardi

Leonard J Persinski

John D Zupanovich

Thomas Edward Cornelius, Iii

John G Myers

Paul H Ralston

Sandra L Whitney

Douglas P Logan

Richard C Diehl

William L Trace

The instant invention is directed to an admixture, and its use in inhibiting scale and corrosion in aqueous systems, comprising:

Synergistic scale and corrosion inhibiting admixtures containing

A method of inhibiting corrosion due to dissolved oxygen is disclosed, whereby chelant-stabilized sodium erythorbate, alone or in combination with conventional corrosion inhibitors, is added to boiler water to prevent corrosion by reducing dissolved oxygen levels in boiler feedwater.

Stabilized sodium erythorbate boiler corrosion inhibitor compositions

Residual fuel oil conditioners comprising an aqueous solution of (a) from 2.0 to 20.0% by weight of at least one water soluble metal salt selected from the halides, sulfates, and nitrates of magnesium, manganese, zinc, copper, lead, iron, nickel, aluminum, calcium and barium; and (b) from 0.1 to 25.0% by weight of a surfactant, preferably a nonionic surfactant having an HLB of from 12 to 17.

Residual fuel oil conditioners containing metal salts in aqueous solution

The instant invention is directed to a method for preventing the formation of scale in sugar evaporation equipment comprising adding to the juice from 0.1 to 200 ppm of a polycarboxylic acid or its salt selected from the group consisting of polymaleic acid, amine adducts of maleic anhydride polymers, phosphonobutane tri-carboxylic acid, phosphinocarboxylic acids and copolymers of acrylic acid and an hydroxylated lower alkyl acrylate.

Control of scale in sugar evaporation equipment

The instant invention is directed to a method for reducing the viscosity of magnesium hydroxide filter cake paste which comprises adding an anionic polymer or copolymer to the magnesium hydroxide filter cake paste. The instant invention is also directed to a stable magnesium hydroxide dispersion comprising an anionic polymer, water and magnesium hydroxide.

Anionic polymers for reduction of viscosity of a magnesium hydroxide

Composition containing organic magnesium and organic manganese compounds as a fuel conditioner to reduce fuel requirements and sulfur trioxide emissions and method of using same.

Fuel conditioner

Use of methoxypropylamine as a neutralizing amine in combination with hydrazine to prevent corrosion in steam condensate systems or in other low solids aqueous systems.

Methoxypropylamine and hydrazine steam condensate corrosion inhibitor

Combination of ethylenediaminetetraacetic acid and nitrilotriacetic acid or water soluble salts thereof for the removal and prevention of scale in steam generators.

Chelating agents

Methods and compositions for inhibiting the corrosion of metal components in which filming amine emulsions containing ethoxylated beta amines and diamines are utilized.

Growing community of inventors

Coraopolis, PA, United States of America

Jerry L Walker