Abstract: A system is described for control of sulfur oxide in emissions to the atmosphere from regenerators of Fluid Catalytic Cracking Units (FCC) in a manner which provides an added controllable variable in heat balanced units. The cracking catalyst used has the capability of reversibly reacting with sulfur oxides in the regenerator flue gas to carry the sulfur back into the reactor where it is converted, at least in part, to hydrogen sulfide which is removed from reaction products in the normal course of treating the cracked products from the reactor. By the disclosed system, regenerator flue gas is cooled and then contacted with hot regenerated catalyst from the regenerator for sorption of sulfur oxides by the catalyst and to cool the catalyst for control of reaction parameters in the FCC reactor.

Abstract: Process and system are described for control of sulfur oxide in emissions to the atmosphere from regenerators of Fluid Catalytic Cracking Units (FCC) in a manner which improves the operation of the regenerator and/or the reactor. Spent FCC cracking catalyst containing sulfur-bearing inactivating carbonaceous deposit is partially oxidized, preferably in the presence of steam, thereby producing a mixture of CO and CO.sub.2 and releasing sulfur in the resulting reducing atmosphere as vaporous hydrogen sulfide before the catalyst is regenerated, whereby the amount of sulfur convertible to noxious SOx in the regenerator flue gas is reduced. By the disclosed process and system, the quantity of oxygen introduced is predetermined and controlled in response to hydrogen content of the coke on the partially oxidized catalyst or an SOx analyzer associated with the regenerator can be used as a control tool.

Abstract: Cis-Platinum(II) amine lactate complexes are prepared by reaction of the appropriate platinum(II) amine chloride complex with silver lactate. These complexes possess pronounced anti-tumor activity and low toxicity and thus have high therapeutic indices. They are also highly soluble in water.

Abstract: A catalyst system capable of operating at very high temperatures is disclosed. The catalyst is divided into upstream and downstream portions, the upstream portion being protected against both thermal conductivity and radiant heat transfer from the downstream portion. Advantageously, the upstream portion may use a more active catalyst composition then the downstream portion.

Abstract: Whole crude and bottoms fractions from distillation of petroleum are upgraded by high temperature, short time contact with a fluidizable solid of essentially inert character to deposit high boiling components of the charge on the solid whereby Conradson Carbon values, salt content and metal content are reduced. The upgraded hydrocarbon fraction may be supplied to fractionator, in which case the high temperatue contactor serves as a heater, e.g. crude heater for crude distillation, in addition to improving quality of the fractions derived by distillation. For charge stocks boiling above about 500.degree.-650.degree. F., the upgrading process yields a product suitable for charge to catalytic cracking in that Conradson Carbon, salts and metals are reduced to levels tolerable in catalytic cracking.

Abstract: A decorative coating for application to ceramics contains no metallic gold but has the appearance of gold after firing. The coating is formed by dissolving solvent-soluble metallo-organic compounds of palladium, silver, and a fluxing agent in a vehicle. A weight ratio of palladium to silver of between 1:1 and 12:1 is used and the total content of palladium and silver in the coating as applied will range between 1 and 12 weight percent, the balance being fluxing agents and vehicle. When applied to opaque or translucent ceramic bodies and fired in the usual manner for such decorations, the appearance obtained previously only with decorations containing substantial amounts of metallic gold is simulated.

Abstract: A cartridge for a gas generator of the type in which a liquid such as water is reacted with a solid fuel such as a base metal hydride comprises a canister which contains at least one compressible filler means which cooperates with the canister interior to define a fuel charge compartment. The canister has a plurality of fluid flow passages formed in it to place the fuel charge compartment in fluid flow communication with the exterior of the canister. Preferably, a pair of compressible filler means such as blocks of a synthetic polymeric foamed material are placed within the canister to define the fuel charge compartment between them. The fluid flow passages communicate with the fuel compartment so that upon immersion of the cartridge into a liquid the liquid flows through the passages to contact the fuel and react with it to form a gas.

Abstract: Platinum, palladium, rhodium, ruthenium, iridium and other metals are recovered from aqueous media containing precious metal ions in solution by contacting the metal-containing solution with blood meal to collect the metals in concentrated insoluble form in the blood meal, and recovering the thus collected metals from the resulting metals-loaded blood meal.

Abstract: In a process for the selective hydrogenation of unsaturated hydrocarbon components of a feedstock, the feedstock is initially passed over a hydrogenation catalyst in the absence of hydrogen to increase hydrogenation selectivity of the catalyst, after which the amount of hydrogen required is then passed over the catalyst along with the feedstock to carry out the desired hydrogenation reaction.

Abstract: Petroleum crudes, residual stocks, gas oils and the like which contain metals are pretreated with a sulfonating agent and the mixture separated into two fractions of which the lesser in volume has a greater concentration of metal and Conradson Carbon components. One or both of those fractions is mixed with a catalytically inert solid at high temperature to transfer metallic compounds and Conradson Carbon components to the solid for improvement of the fraction.

Abstract: An isomerization process for the production of desired isomers of aromatic hydrocarbons containing eight carbon atoms per molecule, i.e., para-xylene and ortho-xylene, from a mixture of aromatic hydrocarbons containing eight carbon atoms per molecule wherein yields of the desired carbon, are increased by incorporating an aliphatic hydrocarbon, e.g., n-pentane, in the feedstock for the process.

Abstract: Novel pressure-sensitive manifold record material comprises paper coated on one side with an encapsulated solution of an alkali-sensitive color precursor such as phenolphthalein in a polar solvent and coated on the reverse side or on a separate sheet of paper with particles of a white alkaline pigment such as fluid energy milled lime. The sheets are assembled for manifold record material by stacking sheet material coated with encapsulated dye solution in face-to-face relationship with surfaces coated with alkaline pigment. Upon rupture of the capsules by printing pressure, a colored mark is formed on the surface containing the alkaline pigment particles.

Abstract: Cis-diammineplatinum(II) orthophosphate complexes are prepared by reaction of diaquo-cis-diammineplatinum(II) salts with alkali metal orthophosphates. The resulting complexes possess pronounced anti-tumor activity in mice and low toxicity; consequently, they have high therapeutic indices.

Abstract: Manufacture of white calcined kaolin clay pigments from dilute dispersed aqueous suspensions of wet-processed hydrated kaolin clay is normally an energy intensive operation because heat and electrical energy are consumed in dewatering the suspensions and additional heat of substantial magnitude is required to calcine the resulting dry dewatered clay material. Energy efficiency is improved by dewatering the dilute aqueous suspension of hydrated kaolin clay in stages to provide dry pulverized calciner feed. An initial portion of the water in the dispersed aqueous suspension is removed in an electrofilter operated to produce a more concentrated but still fluid dispersed suspension of hydrated kaolin. The remainder of the liquid water is then removed from the suspension by spray drying.

Abstract: A catalytic reactor useful for carrying out a catalytic reaction comprises a horizontally disposed reaction zone. Foraminous retaining means are disposed within said reactor or reaction zone transversely thereof and occupying the complete cross-section of said reaction zone available for the flow of gaseous or vaporized reactants therethrough. The forminous retaining means define a transverse volume along a portion of the length of the reactor and are adapted to be filled with particle-form catalytic material. A chamber is disposed at the upper portion of and in open communication with said transverse volume. The chamber is adapted to be filled with particle-form catalytic material so as to maintain the transverse volume filled with particle-form catalytic material. The catalytic reactor is generally useful for carrying out catalytic reactions involving gaseous or vaporized reactants and a mass of particle-form catalytic material.

Abstract: Residual fractions from distillation of petroleum are rendered suitable for charge to catalytic cracking by high temperature, short time contact in a decarbonizing zone with a fluidizable solid particles of essentially inert character and low surface area to deposit high boiling components of the crude and metals on the fluidizable solid particles whereby Conradson Carbon values and metal content of the hydrocarbon feedstock are reduced to levels tolerable in catalytic cracking and carbon laid down on the inert fluidizable particles is burned in a burning zone separate from the decarbonizing zone. Heated inert particles are recycled at least in part to the decarbonizing zone and then to the burning zone.

Abstract: A novel clay pigment, the manufacture thereof and the use of the pigment in the production of dull and matte-finish coated printing papers. The novel clay pigment comprises a mixture of a coarse-size fraction of naturally-occurring kaolin clay containing a substantial proportion of kaolinite booklets in the particle size range of 2 to 5 .mu.m equivalent spherical diameter (e.s.d.) and mechanically delaminated kaolin platelets in the particle size range of 2 to 10 .mu.m e.s.d.

Abstract: Methanol is passed over a catalyst at an elevated temperature and pressure to produce a fuel gas containing a high proportion of methane in a one-step catalytic conversion process. Removal of water and carbon dioxide from the fuel gas produces a synthetic natural gas. For example, methanol with water is passed over a precious metal catalyst such as ruthenium on alumina at a temperature in the range of about 350.degree. C. to 500.degree. C. and a pressure in the range of about 800 to 2500 psig to produce a gaseous mixture comprising methane, carbon dioxide, minor amounts of hydrogen and essentially no carbon monoxide. Upon condensing the water vapor and scrubbing out the carbon dioxide, synthetic natural gas is obtained having a methane content above 90% by volume.

Abstract: In an ammonia manufacturing operation a normally gaseous hydrocarbon or a vaporized naphtha is steam reformed and shift converted, in the presence of air to produce a relatively hot water vapor-containing gaseous stream containing nitrogen and hydrogen in substantially stoichiometric proportion for the production of ammonia along with carbon dioxide and with minor amounts of carbon monoxide. The hot gaseous mixture is then cooled to remove water vapor therefrom as water, and oxygen, usually in the form of air, is added to the resulting cooled gaseous mixture which is contacted with a catalyst for the selective oxidation of the carbon monoxide therein to carbon dioxide in the presence of hydrogen. The oxygen is provided in part by air diverted from the steam reforming and in part by supplemental air.

Abstract: A corrosion-resistant dental alloy shows improved handling characteristics during the filling of a dental cavity with an amalgam of the alloy. The alloy particles comprise a mixture of silver, tin and copper particles having a mean particle size of between about 20 and 26.5 microns, and further having a particle size distribution such that substantially all of the particles fall within a particle size range of from about 10 to 52 microns. The particles have a surface area ranging between about 0.22 m.sup.2 /gm and 0.31 m.sup.2 /gm. The alloy, after amalgamation with mercury, retains a corrosion resistance comparable to that of spherical particles having substantially the same composition and having a surface area of about 0.21 m.sup.2 /gm, while retaining handling characteristics comparable to those of flake-like particles also having substantially the same composition and having a surface area of at least about 0.33 m.sup.2 /gm.