Abstract: Described is a method of preparing dinitrobis(hydroxymethyl)benzene, useful as a photoreactive monomer, from a derivative of stilbene. Also disclosed is a novel dinitrocarbomethoxybenzaldehyde compound useful as an intermediate.

Abstract: A container is composed of one at least one layer of a gas-permeable polymeric material such as a polyolefin, polycarbonate or a polyester and at least one layer of a polymeric gas barrier material containing at least seven percent by weight of amine nitrogen derived from the reaction product of a polyamine and a polyepoxide.

Abstract: This invention provides curable coating compositions which contain acetoacetylated polymers and carbamylmethylaminotriazine crosslinking agents. Active hydrogen containing materials and cure catalysts can, optionally, be added to the curable compositions made in accordance with this invention. The invention further provides articles of manufacture having at least one substrate coated with a curable composition which contains acetoacetylated polymers and triazine crosslinking agents.

Abstract: Described is a method of preparing dinitrobis(hydroxymethyl)benzene, useful as a photoreactive monomer, from a derivative of stilbene. Also disclosed is a novel dinitrocarbomethoxybenzaldehyde compound useful as an intermediate.

Abstract: A coating composition and method for protecting anodized aluminum, and the coated product are disclosed, wherein the coating comprises a crosslinking agent; a film-forming resin selected from the group consisting of polyester polymers, thermosetting acrylic polymers, and mixtures thereof; and an epoxy silane. The combination provides exceptional adhesion of the coating to anodized surfaces as well as good hardness.

Abstract: Barrier materials for reducing the permeability of plastic packaging materials are provided, characterized as containing at least about seven percent by weight amine nitrogen, or a total of at least about 17 percent amine nitrogen plus hydroxyl groups. The barrier materials exhibit oxygen permeability of less than about 1.5 cc-mil/100 in.sup.2 -day-atmosphere and a carbon dioxide permeability of less than about 15 cc-mil/100 in.sup.2 -day-atmosphere at 23.degree. C. and zero percent relative humidity. The barrier material can be formed from polyepoxide and polyamine. Optionally the polyamine may comprise prereacted polymeric resin formed from a polyepoxide and a polyamine. Multilayer packaging materials and multilayer containers including the polyamine-polyepoxide barrier material are part of the invention.

Abstract: Amine defunctionalized epoxy resin for coating compositions particularly suitable for application onto metal surfaces such as can stock was found to have improved blush and stain resistance when employing reaction ratios near 1:1 equivalent of epoxy group to equivalent of primary amine or ammonia. A method is also disclosed for carrying out the defunctionalizing reaction while avoiding gelation.

Abstract: This invention provides a nozzle for discharging a relatively small amount of a metals passivating agent into a catalytic cracking unit at a relatively high velocity through a relatively large diameter opening.

Abstract: A method for controlling the filling status of particulate solids in a solids container is provided using an apparatus comprising an empty/full indication device comprising a conduit structure, having a vertically opened upper end and a vertically opened lower end, wherein the vertically opened upper end is in open communication with the upper end portion of the solids container at the location of a predetermined full level and the vertically opened lower is in open communication with the lower end portion of the solids container at the location of a predetermined empty level.

Abstract: A process for extracting metals from aqueous solutions containing such metals comprising contacting such an aqueous solution with an asphaltene to extract at least one metal from the aqueous solution to the asphaltene, and recovering the thus extracted at least one metal from the asphaltene. Also disclosed is a process for sulfonating a petroleum fraction containing asphaltenes, the thus sulfonated asphaltenes being advantageously employable in the process for extracting at least one metal from an aqueous solution containing such metal.

Abstract: In one embodiment, a process is provided for treating virgin poly(arylene sulfide) resins, wherein a heated polymer slurry, comprising a virgin poly(arylene sulfide) resin and water is contacted by an acidic treating solution comprising at least an acidic component, wherein the amount of the acidic component in the acidic treating solution is less than the amount necessary to result in at least a partial curing of the virgin poly(arylene sulfide) resin. In a second embodiment, the process is provided for treating a virgin poly(arylene sulfide) resin, wherein the virgin poly(arylene sulfide) resin is slurried with an aqueous acidic treating solution comprising an acidic component and an aqueous component and the concentration of the acidic component in the aqueous acidic treating solution is less than the amount necessary to result in at least a partial curing of the virgin poly(arylene sulfide) resin.

Abstract: A novel cracking catalyst, a method of preparing same and an improved hydrocarbon cracking process are provided wherein adverse effects of metals such as nickel, vanadium, iron, copper and cobalt in the cracking catalyst are precluded or mitigated by contacting the cracking catalyst with an antimony treating agent comprising at least one of elemental antimony and compounds thereof and a lithium treating agent comprising at least one of elemental lithium and compounds thereof whereby there is added to said catalyst a modifying amount of each antimony treating agent and lithium treating agent with the weight ratio of antimonmy to lithium being such as to provide passivation of contaminating metals greater than the sum of the passivation effect of each of antimony treating agent and lithium treating agent individually.

Abstract: Method and apparatus for fractionating a hot vaporous hydrocarbon feed from a fluid catalytic cracking reactor wherein the hot vaporous feed is introduced into a fractionator zone near one end thereof and liquid is removed from a liquid collection zone and cooled in a heat extraction zone. A first portion of the cooled liquid is returned to a location between the liquid collection zone and the point of introduction of the vaporous feed and sprayed directly on hot condensed liquid flowing downwardly over an inclined baffle plate to quickly quench the liquid below the temperature at which polymerization of the constituents of the liquid can occur.

Abstract: An ore containing an increased percentage of mineral values, particularly uranium values, is separated from an ore containing a lower percentage of such mineral values by contacting the ore containing the lower percentage of mineral values with a polar solvent, particularly water, and a nonpolar solvent, such as an isoparaffin mixture, and separating a polar solvent phase containing a portion of the contacted ore from a nonpolar solvent containing another portion of the contacted ore. The ore may be a total ore containing both coarse and fines or a fines fraction which has been separated from a total ore as by wet classification. Where a total ore is treated in accordance with the present invention, in one embodiment of the invention, a coarse ore fraction can be separated from the total ore either during the contacting step or the separating step.

Abstract: In the mixing of two or more particulate solid feeds in proportional ratios in which the unmixed solids are fed from separate bin receivers into a common mixture bin receiver having a generally vertical section, the present invention comprises an improved feeder in which a feeder means extends below the level of the solids in the common mixture bin. The improved feeder means of this invention comprises at least two nested conduits of differing horizontal cross-sectional areas. One or more of these nested conduits may be raised (or lowered) by an adjusting means to engage a conduit having a greater (or lesser) horizontal cross-sectional area enabling the proportions of particulate solids being fed to be changed as desired.

Abstract: Sulfonated asphalt is produced by heating an asphaltic material, preferably having a softening point between about 315.degree. F. and 350.degree. F.

Abstract: Catalytic regenerators, nozzle designs and processes suitable for introducing regeneration air into a catalytic cracking unit which substantially reduce erosion induced nozzle failures, include at least one nozzle which has at least one planer surface generally parallel to the nozzle's longitudinal axis. In another embodiment, at least one nozzle has a plurality of planer surfaces generally parallel to the nozzle's longitudinal axis.

Abstract: A novel cracking catalyst, a method of preparing same and an improved hydrocarbon cracking process are provided wherein adverse effects of metals such as nickel, vanadium, iron, copper and cobalt in the cracking catalyst are precluded or mitigated by contacting the cracking catalyst with an antimony treating agent comprising at least one of elemental antimony and compounds thereof and a lithium treating agent comprising at least one of elemental lithium and compounds thereof whereby there is added to said catalyst a modifying amount of each antimony treating agent and lithium treating agent with the weight ratio of antimony to lithium being such as to provide passivation of contaminating metals greater than the sum of the passivation effect of each of antimony treating agent and lithium treating agent individually.

Abstract: A tube plugging device for temporarily plugging a tube having accessible open ends and a method for leak-testing a shell-and-tube type heat exchanger, in which the channel cover is removed from the heat exchanger, while leaving the head cover and shell cover in place, the end of the tube, adjacent the head and shell covers, is plugged by inserting and expanding an elongated plug device having an expandable sealing ring slidably mounted on one end of an elongated rod, a sleeve slidably mounted on the rod to bear against the sealing ring and expand the same and an expanding means threadably mounted on the other end of the rod to bear against the other end of the sleeve and expand the sealing ring, and a fluid under pressure is introduced into the shell-side of the heat exchanger.

Abstract: A method for burning a fuel, containing chemically bound nitrogen, in a two-stage, rich-lean combustion process, including; introducing the fuel and at least one stream of primary air into a primary combustion region at a fuel-air ratio above the stoichiometric ratio and in a manner to intimately mix the fuel and air and establish a stabilized flame adjacent the upstream end of the primary combustion region, maintaining the flame in the primary combustion region for a period of time sufficient to produce a combustion product mixture containing less than a predetermined amount of NO.sub.x pollutants and abruptly terminating the primary combustion region while introducing at least one stream of secondary air into the secondary region in an amount sufficient to reduce the overall fuel-air ratio below the stoichiometric ratio and in a manner to prevent backflow of the secondary air into the primary combustion region.