Abstract: Borated alkyl catechols can be stabilized by the addition of certain defined dialkylamines.Lubricating oils containing a borated alkyl catecholdialkylamine complex are effective in reducing oxidation, wear and deposits in an internal combustion engine.

Abstract: A process is disclosed for dewaxing a hydrocarbon feed to produce a dewaxed lube oil. The feed includes straight chain and slightly branched chain paraffins having 10 or more carbon atoms. In the process the feed is contacted under isomerization conditions with an intermediate pore size molecular sieve having a crystallite size of no more than about 0.5.mu. and pores with a minimum diameter of at least 4.8.ANG. and with a maximum diameter of 7.1.ANG. or less. The catalyst has sufficient acidity so that 0.5 g thereof when positioned in a tube reactor converts at least 50% of hexadecane at 370.degree. C., a pressure of 1200 psig, a hydrogen flow of 160 ml/min, and a feed rate of 1 ml/hr. It also exhibits 40 or greater isomerization selectivity when used under conditions leading to 96% conversion of hexadecane to other chemicals. The catalyst includes at least one Group VIII metal. The contacting is carried out at a pressure from about 15 psig to about 3000 psig.

Abstract: Molecular sieves, particularly zeolites, are prepared using templates derived from a 4-azonia-tricyclo[5.2.n.0.sup.2,6 ]alkene family of compounds. The templates may be prepared in a series of reaction steps which include a Diels-Alder reaction between a diene and a dienophile.

Abstract: The exterior of a platinum-zeolite L catalyst is treated with metallic tin particles having an average particle size of between 1 and 5 microns so that at least 95% of the platinum present in the catalyst is unreacted with the tin.

Abstract: This invention provides an improved hydrocracking catalyst which includes an inorganic oxide component, such as alumina, a hydrogenation component, such as a base metal or a noble metal and a zeolite component which is a Y-zeolite. The catalyst in this invention is particularly characterized in that the zeolite component of the catalyst has a number average crystal size of less than about 0.5 micron, preferably less than about 0.4 micron. In the process aspect of this invention the use of the above catalyst in hydrocracking processes provides improved liquid fraction yields, particularly yields of high octane gasoline, diesel fuel and premium quality jet fuel. The catalyst also produces a corresponding decrease in production of light gasses, while providing no significant increase in coking or decrease in catalyst life. In another aspect this invention provides a Y-type zeolite having an average crystal size of less than about 0.5 micron which comprises less than about 0.5 wt.

Abstract: A double hull vessel is disclosed having a novel type of ballast tank element. That ballast tank element has a half-breadth double-bottom ballast tank and a side ballast tank. The half-breadth double-bottom ballast tank has a tank access trunk that is located within the double-side of the hull. Preferably, that tank access trunk is at least one frame space wide. The side ballast tank is located within the double-hull, and is adjacent to the tank access trunk. Preferably, the ballast tank elements are used in pairs which are adjacent and opposite from each other. These pairs of ballast tank elements can be used in conjunction with double-hull ballast tank elements having no internal subdivisions.

Abstract: The flow of bubbles in a borehole within an active well is determined by using data from a borehole televiewer. A known discontinuous material is introduced into the borehole at a known distance from the borehole televiewer, and the elapsed time is determined between introduction and detection of the discontinuous material by the borehole televiewer.

Abstract: A composition of polyalkylenepolyamine derivatives useful as a corrosion inhibitor in aqueous media produced by reacting a starting polyalkylenepolyamine composition comprising a mixture of:(i) at least one C-alkyl-ethylene diamine; and(ii) at least one di-(C-alkyl)-diethylenetriamine;wherein each C-alkyl group on the ethylene diamine and diethylenetriamine independently contain between 8-26 carbon atoms;with a derivatizing agent which is either an alkylating agent or an alkylene oxide. Methods for preparing this composition and using it to inhibit the corrosion of corrodible metal alloys are also disclosed.

Abstract: The method for the enhanced recovery of hydrocarbons from a hydrocarbon bearing reservoir during gas injunction into the reservoir comprises the at least periodic injection of steam and a foam-forming mixture into the reservoir from a known depth interval in a well source to provide a foam in the presence of residual oil and high gas permeable channels of the reservoir. The mixture comprises water, an effective foam forming amount of an alkyl aromatic sulfate component having an average molecular weight from about 400 to about 600 and at least one alkyl group comprising 18 to 24 carbon atoms and a viscosity control agent. The viscosity control agent comprises a surfactant which is present in an amount effective to prevent gelling of the mixture during storage. The reservoir fluids are contacted with the resulting foam so as to assist movement of the hydrocarbons toward a producing interval and the hydrocarbons are recovered from the producing interval.

Abstract: The present invention relates to a process for preparing crystalline molecular sieves, particularly large pore zeolites, which comprises contacting active sources of one or more oxides selected from the group consisting of monovalent element oxides, divalent element oxides, trivalent element oxides, tetravalent element oxides, and pentavalent element oxides with an organocation templating agent derived from a 9-azabicyclo[3.3.1]nonane.

Abstract: A process for depth migration of seismic wave information that has been derived from geological media that causes rapid lateral velocity variations in seismic waves. The process includes the step of decomposing wavefields recorded at the earth's surface using Gaussian beams as basic functions. Then, according to the process, the set of Gaussian beams is extrapolated downward into the earth to obtain the subsurface wavefield. Finally, the wavefield is processed to provide depth-migrated images of subsurface reflectors.

Abstract: Compositions are provided comprising a propylene-ethylene copolymer containing about 1 to about 7 weight percent ethylene and an ethylene-alkyl acrylate copolymer containing at least about 20 weight percent ethylene, wherein the composition contains about 10 to about 25 weight percent alkyl acrylate, based on the combined weight of propylene-ethylene copolymer and ethylene-alkyl acrylate copolymer. Films made from these compositions have good RF sealing properties, as well as good flexibility at low temperatures.

Abstract: The present invention relates to a process for preparing crystalline molecular sieves, particularly large pore zeolites, which comprises contacting active sources of one or more oxides selected from the group consisting of monovalent element oxides, divalent element oxides, trivalent element oxides, tetravalent element oxides, and pentavalent element oxides with an organocation templating agent derived from a 3,7-diazabicyclo[3.3.1]nonane.

Abstract: The present invention relates to a process for preparing crystalline molecular sieves, particularly large pore zeolites, which comprises contacting active sources of one or more oxides selected from the group consisting of monovalent element oxides, divalent element oxides, trivalent element oxides, tetravalent element oxides, and pentavalent element oxides with an organocation templating agent derived from sparteine.

Abstract: A process for removing oily residues from aqueous waste streams using a cross flow filtration system in which the efficiency of a dynamic membrane system comprising a gel layer and supporting semipermeable membrane is optimized by applying a controlled shear force parallel to the plane of the membrane.

Abstract: The present invention relates to a process for preparing crystalline molecular sieves, particularly large pore zeolites, which comprises contacting active sources of one or more oxides selected from the group consisting of monovalent element oxides, divalent element oxides, trivalent element oxides, tetravalent element oxides, and pentavalent element oxides with an organocation templating agent derived from 1,3,3,8,8-pentamethyl-3-azoniabicyclo[3.2.1]octane.

Abstract: A process for purifying alkyl sulfides by absorption of the organosulfur impurities on an absorbent. The absorber is a copper salt deposited on a high surface area support. The purified alkyl sulfide is useful as an extractant for palladium.

Abstract: Method and apparatus for determining heterogeneous properties of a core sample by use of pressure transients. In the method, a pressure is applied to a first closed vessel at one end of a core sample. The pressure is then allowed to dissipate into the core and into a second closed vessel at the other end of the core sample. The pressure in at least one of the vessels or the core itself is measured and recorded as a function of time during the pressure dissipation. The volume of the first vessel is then varied and pressure is once again applied to the first vessel and allowed to dissipate into the core and second vessel. The pressure is again measured and recorded as a function of time during the pressure dissipation. The two sets of recorded measurements are then analyzed to detect deviations from theoretical responses in homogeneous cores which identify heterogeneities.

Abstract: A process is disclosed for passivating the reactivity of contaminant metals, such as nickel and vanadium, which have been deposited on a catalytic cracking catalyst, by adding to the cracking catalyst a mixture of a calcium-containing material and a magnesium-containing material in a separate reactor in the presence of steam. The preferred calcium-containing material is dolomite and the preferred magnesium-containing material is sepiolite. It is also preferred to include antimony and/or bismuth compounds in the additive mixture.

Abstract: A process for removing residual sulfur from a hydrotreated naphtha feedstock is disclosed. The feedstock is contacted with molecular hydrogen under reforming conditions in the presence of a less sulfur sensitive reforming catalyst, thereby converting trace sulfur compounds to H.sub.2 S, and forming a first effluent. The first effluent is contacted with a solid sulfur sorbent, removing the H.sub.2 S and forming a second effluent. The second effluent is contacted with a highly selective reforming catalyst under severe reforming conditions.