Atlantic Richfield Company

Baker Hughes Corporation

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Richard F Miller

Glenn L Roof

George R Wilson, Iii

Hydroxalkylaminium polysulfides are used to provide cold stability to ammonium polysulfide solutions. Hydroxyalkylaminium sulfides or polysulfides also are used to solubilize unwanted sulfur. Preferred aminium ions are monohydroxyalkylaminium ions, preferably monoethanolaminium ions. When added to an aqueous stream comprising free cyanide ions (including HCN), the polysulfide solution reduces corrosion of metal equipment contacted by the stream by converting the free cyanide ions into thiocyanate ions.

Polysulfide solutions and hydroxalkylaminium ions for stabilizing elemental sulfur

The efficiency of acid catalyzed alkylation of alkanes with olefins is improved by conducting the alkylation in the presence of small amounts of a neo acid.

Aklylation aid for sulfuric acid catalyzed alkylation units

Hydrocarbon process equipment is protected against fouling by incorporating into the hydrocarbon being processed small amounts of a composition comprised of a dialkylhydroxylamine and a tertiary alkylcatechol.

Method for minimizing fouling of heat exchangers

Hydrocarbon process equipment is protected against fouling by incorporating into the hydrocarbon being processed small amounts of a composition comprised of a dialkylhydroxylamine and an organic surfactant.

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Houston, TX, United States of America

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