Abstract: A process for preparing coal suspensions which comprises contacting coal with nitric acid and then combining said contacted coal with an aqueous base solution.

Abstract: A mixture of polycyclic, aromatic polycarboxylic acids carrying nuclear nitro groups that is substantially soluble in an azeotropic mixture of methyl ethyl ketone and ethanol but substantially insoluble in water, and a process for preparing the mixture of polycyclic, aromatic polycarboxylic acids.

Abstract: A bituminous emulsion containing bituminous material, water and the product resulting from the reaction of (1) polycyclic, polycarboxylic acids obtained as a result of the oxidation of coal with (2) a base. The process for preparing such emulsion is also disclosed.

Abstract: A mixture of polycyclic, aromatic polycarboxylic acids carrying nuclear nitro groups that is substantially soluble in a mixture of polar solvents but substantially insoluble in water and a process for preparing the mixture of polycyclic, aromatic polycarboxylic acids.

Abstract: A hydrocarbon emulsion containing a hydrocarbon, water and the product resulting from the reaction of (1) polycyclic, polycarboxylic acids obtained as a result of the oxidation of coal with (2) a base.

Abstract: A suspension containing coal, hydrocarbon oil, water and the product resulting from the reaction of (1) polycyclic, polycarboxylic acids obtained as a result of the oxidation of coal with (2) a base. The process for preparing such suspension is also claimed.

Abstract: A process for converting cyclohexane to adipic acid which involves oxidizing cyclohexane with molecular oxygen in the presence of critical amounts of cobaltic ions and selected amounts of added water in an aliphatic monobasic acid while maintaining critical temperature and pressure in the reaction zone.

Abstract: A suspension containing coal, water and the product resulting from the reaction of (1) polycyclic, polycarboxylic acids obtained as a result of the oxidation of coal with (2) a base. The process for preparing such suspensions is also claimed.

Abstract: A novel isomeric mixture of benzophenone pentacarboxylic acids and their anhydrides.

Abstract: A drilling fluid containing a new composition of matter resulting from the reaction of (1) substantially water-insoluble polycyclic, polycarboxylic acids obtained as a result of the oxidation of coal with (2) a base.

Abstract: Novel insulating oil compositions comprising a major amount of an insulating oil and a minor amount of a product obtained as a result of a process which comprises reacting benzene with ethylene in the presence of an alkylation catalyst to obtain a reaction mixture containing largely unreacted benzene, ethylbenzene, polyethylbenzenes, 1,1-diphenylethane and heavier material, separating at least benzene, ethylbenzene and polyethylbenzenes from said reaction mixture and thereafter recovering from said heavier material a fraction whose boiling points fall within a temperature range of about 255.degree. to about 420.degree. C. as said product.

Abstract: Novel insulating oil compositions comprising a major amount of an insulating oil and a minor amount of a diarylalkane.

Abstract: A process for producing carboxylic acids from olefins having from 20 to 24 carbon atoms or mixtures of olefins having from 20 to 24 carbon atoms which involves adding said olefin or mixtures of said olefins without a solvent to carbon monoxide and sulfuric acid and thereafter adding water to the reaction product so formed.

Abstract: A process for preparing a mixture of polycyclic aromatic polycarboxylic acids that is substantially soluble in acetone and substantially soluble in water which comprises subjecting a slurry containing coal to reaction with aqueous nitric acid in an atmosphere containing molecular oxygen, mechanically separating the solids in the resulting slurry, separating nitric acid and water from the resulting filtrate and then extracting the remainder of said filtrate with a polar solvent to obtain said mixture of polycyclic aromatic polycarboxylic acids substantially soluble in acetone and substantially soluble in water.

Abstract: A process for preparing a mixture of polycyclic aromatic polycarboxylic acids that is substantially soluble in acetone but substantially insoluble in water which comprises subjecting a slurry containing coal to reaction with aqueous nitric acid in an atmosphere containing molecular oxygen, mechanically separating the solids in the resulting slurry, extracting the resulting solids with a polar solvent to separate therefrom a mixture of polycyclic aromatic polycarboxylic acids substantially soluble in acetone but substantially insoluble in water and a mixture of polycyclic aromatic polycarboxylic acids substantially insoluble in acetone and substantially insoluble in water.

Abstract: A process for preparing 3,4,3',4'-benzophenonetetracarboxylic dianhydride which comprises condensing an impure ortho-xylene mixture with acetaldehyde in contact with an acid catalyst to obtain an impure 1,1-bis(3,4-dimethylphenyl)ethane mixture, oxidizing the 1,1-bis(3,4-dimethylphenyl)ethane mixture with nitric acid to obtain a mixture of carboxylic acids, from which by crystallization and dehydration substantially pure 3,4,3',4'-benzophenonetetracarboxylic dianhydride is recovered.

Abstract: A process for converting cyclopentane to glutaric acid which involves oxidizing cyclopentane with molecular oxygen in the presence of critical amounts of cobaltic ions in an aliphatic monobasic acid while maintaining critical temperature, pressure and contact time in the reaction zone.

Abstract: This invention relates to novel isometric polyamide resins.

Abstract: A mixture of polycyclic aromatic polycarboxylic acids that is substantially insoluble in acetone and substantially insoluble in water and a process for preparing the mixture.

Abstract: A mixture of polycyclic aromatic polycarboxylic acids that is substantially soluble in acetone and substantially soluble in water and a process for preparing the mixture.