Petrolite Corporation

Frederick T Welge

Derek Redmore

Thomas J Bellos

Roy W Greenlee

Oil well production fluid composed of oil and water and containing in excess of 100 ppm water soluble petroleum carboxylates in anionic form dissolved in the water is treated by acidifying the fluid to a pH of 6.0 or lower with a strong acid and then is intimately mixed. The oil and water are separated one from the other. The content of the water soluble organics in the water is thereby substantially transferred to the oil phase. In a second aspect of the invention, water used to extract corrosion compounds to render the oil suitable for fueling gas turbine power plants is acidified to a pH of 6.0 or lower and is thereafter intimately mixed with fuel oil.

Method of removing water soluble organics from oil process water

This invention relates to the use of compounds for inhibiting scale formation, said compounds being characterized by the presence of N-methyl, or substituted methyl, phosphonic acid and N-hydroxy-propylenesulfonic acid groups. These compounds contain at least one or more of each group and are bonded to the same or different amino groups. They are derived by reacting an amine with both (1) an epihalohydrin-bisulfite addition product and (2) with a carbonyl compound, such as formaldehyde, and phosphorous acid or its equivalent. They have a wide variety of uses, for example as scale and corrosion inhibitors, iron oxide removers, chelating agents, etc.

Hydroxypropylene-amino-phosphonic-sulfonic acids for inhibiting scale

This invention relates to compounds characterized by the presence of N-methyl, or substituted methyl, phosphonic acid and N-propylenesulfonic acid groups. These compounds contain at least one or more of each group and are bonded to the same or different amino groups. They are derived by reacting an amine with both propane sultone and with a carbonyl compound, such as formaldehyde, and phosphorous acid or its equivalent. They have a wide variety of uses, for example as scale and corrosion inhibitors, chelating agents, etc.

Inhibiting scale with amino-phosphonic-sulfonic acids

This invention relates to compounds characterized by the presence of N-methyl, or substituted methyl, phosphonic acid and N-hydroxy-propylenesulfonic acid groups. These compounds contain at least one or more of each group and are bonded to the same or different amino groups. They are derived by reacting an amine with both (1) an epihalohydrin-bisulfite addition product and (2) with a carbonyl compound, such as formaldehyde, and phosphorous acid or its equivalent. They have a wide variety of uses, for example as scale and corrosion inhibitors, iron oxide removers, chelating agents, etc.

Hydroxypropylene-amino-phosphonic-sulfonic acids

This invention relates to vinyl quaternaries and polymers thereof; and to the preparation thereof from ethylene dihalides and tertiary amines.

Polyvinyl quaternaries

This invention relates to the preparation of oil-soluble chromium compositions of high chromium content, such as from about 15 to 30% chromium; to the resulting products; and to the use of such products, for example, as fuel additives, such as additives employed in turbine fuel as corrosion inhibitors, and other uses.

Oil-soluble chromium compositions

Amino-phosphonic-sulfonic acids

This invention relates to the preparation of oil-soluble aluminum compositions of high aluminum content, such as from about 15 to 25% aluminum; to the resulting products; and to the use of such products, for example, as fuel additives such as additives employed in turbine fuel as corrosion inhibitors and other uses.

Oil-soluble aluminum compositions

Quaternary ammonium salts of polyepihalohydrin and tertiary amines and their use as corrosion inhibitors, particularly in acid systems.

Quaternary ammonium salts of polyepihalohydrin

This invention relates to magnesium carboxylate and/or phenate-sulfonate complexes, processes for their preparation and uses therefor, particularly as fuel additives for vanadium-containing fuels.

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Affton, MO, United States of America

Frederick T Welge