5,3-YLENE)-, -AR-(1-X-PYRAZOL-5,3-YLENE)-CH2-, AND -AR-
(2-X-PYRAZOL-5-3-YLENE)-CH2-
WHEREIN AR IS A DOVALENT RADICAL SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC RADICALS, ALICYCLIC RADICALS, ALIPHATICALICYCLIC RADICALS, CARBOCYCLIC AND HETEROCYCLIC ARYL RADICALS AND X IS THE RADICAL OF AN ACID SELECTED FROM THE GROUP CONSISTING OF ORGANIC AND INORGANIC ACIDS AND SUBSTITUTED SUCH AACIDS.
Abstract:
A process for producing anhydrides of benzenepolycarboxylic acids by the vapor-phase oxidation of aromatic hydrocarbons selected from the group consisting of naphthalene, octahydroanthracene and polyalkylbenzenes containing at least two alkyl substituents in ortho position to one another and having the general formula
WHEREIN R1 and R2 are alkyl radicals having a straight or branched chain and containing 1 to 6 carbon atoms and R3 and R4 are radicals selected from the group consisting of hydrogen and alkyl radicals containing 1 to 4 carbon atoms, the total number of carbon atoms of said polyalkylbenzenes being no higher than 18, said process comprising oxidizing said aromatic hydrocarbons at a temperature of between about 300* and 550*C and in the presence of a catalyst consisting of a refractory carrier and vanadium oxide, said catalyst prepared by impregnating said refractory carrier with an oxytrihalide of vanadium in which the halide is selected from the group consisting of chlorine and bromine, hydrolyzing said oxytrihalide and vanadium and then calcining said catalyst.
Abstract:
A process for producing ethylphenols which comprises (1) the oxidation of diethylbenzene by passing a molecular oxygen containing gas into contact with said diethylbenzene at a temperature between 100* and 180*C to convert 5 to 30 percent of said diethylbenzene into diethylbenzene hydroperoxide, (2) withdrawing the reaction mixture, separating the unconverted diethylbenzene therefrom to obtain a hydroperoxide concentrate containing at least 40 percent of diethylbenzene hydroperoxide, (3) mixing the diethylbenzene hydroperoxide concentrate with a solvent selected from the group consisting of low molecular weight aliphatic alcohols, ketones and mixtures thereof, (4) decomposing said hydroperoxide by intimate contact with a strong acid which is used in an amount of between 0.05 and 5 percent of the weight of total reaction mixture, and neutralizing the resulting mixture, and (5) distilling the neutralized mixture to recover a bottom fraction containing ethylphenol and a top fraction containing acetaldehyde.
Abstract:
A process for the production of ABS type resins consisting of styrenic compound acrylonitrile compound copolymer and polybutadiene rubber on which said styrenic compound and acrylonitrile compound are grafted, said process comprising carrying out a mass-copolymerization of a styrenic compound and an acrylonitrile compound in the presence of polybutadiene rubber, at a temperature of between 75* and 125*C, up to formation of a mass copolymer having a viscosity of between about 5,000 and 100,000 centipoises when measured at 65*C and in which the continuous phase is a styrenic compound acrylonitrile compound copolymer which contains styrenic and acrylonitrile compounds, adding to said mass copolymer an aqueous dispersion of a suspending agent and then a surfactive agent, and thereafter carrying out a suspension polymerization at a temperature of between 75* and 150*C.
Abstract:
A lubricating composition for marine diesel engines comprising (1) 50 to 90 parts by weight of mineral base oil, (2) 50 to 10% parts by weight of a mixture of polymers selected from the group consisting of hydrogenated and non-hydrogenated polybutenes and polyisobutylenes, said mixture comprising a polymer having a Saybolt viscosity at 210*F of between 150 and 3,000 SSU and a polymer having a Saybolt viscosity at 210*F of between 40 and 100 SSU, and (3) a superbasic additive, said lubricating composition having an alkalinity index of between 60 and 70.
Abstract:
A process for oxidizing ethyl-substituted benzenes to benzene carboxylic acids in a solvent mixture consisting of acetic acid and water using a cobalt carboxylate and manganese carboxylate catalyst and maintaining the concentration of unreacted ethylsubstituted benzene in reaction mixture at a value of at least 5 percent by volume on a solvent-free basis.