Abstract: This invention relates to a process for preparing .alpha.-amino phosphonic acid derivatives which comprises reacting a nitrile with a phosphite ester under hydrogenation conditions; and to the .alpha.-amino phosphonic acid derivatives formed and uses thereof.

Abstract: Dihydro-nitrogen heterocyclic phosphoramidates of the general formula ##STR1## where N - C represents a dihydro-nitrogen ring, R is a substituted group, preferably hydrocarbon, X is O or S, and R.sub.1 is an alcohol or phenolic moiety, preferably hydrocarbon; the preparation and uses thereof particularly as corrosion inhibitors, microbiocides, etc.

Abstract: 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.

Abstract: 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.

Abstract: Pyrophosphates, containing both oxygen and sulfur, of the formula ##STR1## where X is oxygen or sulfur such as those of the formula ##STR2## where R is other than a lower alkyl group (i.e. containing less than seven carbon atoms) and preferably a higher alkyl (i.e. at least six carbons), phenol, etc., and most preferably an oxyalkylated radical. Pyrophosphates are prepared by reacting P.sub.2 S.sub.5 with the appropriate alcohol and continuing the reaction to convert the O,O-disubstituted dithiophosphoric acid initially formed to the pyrophosphate. The resulting product usually contains the O,O-disubstituted dithiophosphoric acid in addition to the pyrophosphate. The pyrophosphate, or mixture of the pyrophosphate with the O,O-disubstituted dithiophosphoric acid, is particularly useful as a corrosion inhibitor in oxygenated and/or aqueous systems as well as for other uses, etc.

Abstract: This invention relates to hydroxyalkylaminoalkylamides, the N-alkylated derivatives thereof, and the preparation and uses thereof.

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

Abstract: 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.

Abstract: Mixtures of Thiophosphates, pyrophosphates containing both oxygen and sulfur, and oxygen phosphates are effective as scale inhibitors. The mixtures are synergistically more effective as scale inhibitors than each component individually.These synergistic mixtures are also effective for other uses such as for inhibiting corrosion, particularly in aqueous and/or oxygenated systems.

Abstract: Polymeric phosphoramides -- these are illustrated by polymeric phosphoramides of the formula unit ##STR1## where OA is an oxirane derived unit, n is a number and N is an amine moiety; and to uses thereof.

Abstract: Mixtures of Thiophosphates, pyrophosphates containing both oxygen and sulfur, and oxygen phosphates are effective as corrosion inhibitors particularly in aqueous and/or oxygenated systems. The mixtures are synergistically more effective as corrosion inhibitors than each component individually.These synergistic mixtures are also effective for other uses such as for scale preventatives, etc.

Abstract: This invention relates to a process for preparing .alpha.-amino phosphonic acid derivatives which comprises reacting a nitrile with a phosphite ester under hydrogenation conditions; and to the .alpha.-amino phosphonic acid derivatives formed and uses thereof.

Abstract: Diels-alder adducts of dihydro-nitrogen heterocyclic phosphoramidates of the general formula ##STR1## where ##STR2## represents a dihydro-nitrogen ring, R is a substituted group, preferably hydrocarbon, X is O or S, and R.sub.1 is an alcohol or phenolic moiety, preferably hydrocarbon; the preparation and uses thereof particularly as corrosion inhibitors, microbiocides, etc.

Abstract: Dihydro-nitrogen heterocyclic phosphoramidates of the general formula ##STR1## where N -- C represents a dihydro-nitrogen ring, R is a substituted group, preferably hydrocarbon, X is O or S, and R.sub.1 is an alcohol or phenolic moiety, preferably hydrocarbon; the preparation and uses thereof particularly as corrosion inhibitors, microbiocides, etc.

Abstract: Dihydro-nitrogen heterocyclic phosphoramidates of the general formula ##EQU1## where N--Crepresents a dihydro-nitrogen ring, R is a substituted group, preferably hydrocarbon, X is O or S, and R.sub.1 is an alcohol or phenolic moiety, preferably hydrocarbon; the preparation and uses thereof particularly as corrosion inhibitors, microbiocides, etc.

Abstract: This invention relates to the oxidation of sterically hindered 1,2-dithiole-3-thiones with nitric acid to form the corresponding 1,2-dithiolium compounds. For example, when 4-neopentyl-5-tert-butyl-1,2-dithiole-3-thione is oxidized with nitric acid, 4-neopentyl 5-tert-butyl 1,2-dithiolium hydrogen sulfate is formed. When non-sterically hindered 1,2-dithiole-3-thiones are oxidized with nitric acid, decomposition rather than dithiolium formation occurs.

Abstract: Nitrogen-heterocyclic phosphonic acids and derivatives thereof characterized by aminomethyl (or substituted methyl) phosphonic acids or derivatives thereof bonded directly or indirectly, i.e., through a N-side chain to the nitrogen atom in the heterocyclic ring, for example those containing in the molecule at least one of the following units: ##EQU1## where N represents a heterocyclic ring having a nitrogen atom on the ring; --R'N-- represents an amino-terminated side chain attached directly to the ring nitrogen (which side chain may or may not be present); and ##EQU2## represents a methyl (or substituted methyl) phosphonic acid group where M is hydrogen, an alcohol or a salt moiety, and X and Y are hydrogen or a substituted group such as alkyl, aryl, etc., of which one or two units may be present depending on the available nitrogen bonded hydrogens, and to uses for these compounds, for example, as scale inhibitors, corrosion inhibitors, etc.