Abstract: Supported Ziegler-Natta catalyst component adapted for the polymerization of ethylene is provided. More specifically, certain organomagnesium compounds (e.g., dibutylmagnesium) which do not contain an oxygen linkage between the organo moiety and the magnesium are impregnated into a porous inorganic oxide support (e.g., agglomerated silica particles) to form a first reaction product. The first reaction product is halogenated, e.g., with HCl, to convert the organomagnesium derived component to MgCl2 thereby forming a second reaction product. The second reaction product is then treated with a transition metal compound (e.g., TiCl4), a particular type of electron donor (e.g., 2,6-dimethyl pyridine) and optionally at least one Group 2 or 13 organo metal compound (e.g., diethylaluminum chloride). The combination of the particular organomagnesium compounds and electron donor impart a low melt flow ratio and enhanced activity to resulting catalyst component.

Abstract: A process for the preparation of mixed oxide compositions of cerium oxide and at least one non-noble metal oxide is disclosed. The process involves contacting a salt solution containing a cerium (IV) salt with hydrogen peroxide and thereafter, treating the resulting solution with excess base to precipitate a mixed oxides. Mixed oxide compositions produced by the process maintain a high specific surface area after prolonged exposure to high temperatures.

Abstract: A heterogeneous catalyst composition suitable for olefinic polymerization and to methods of forming polyolefinic products using said composition. The catalyst composition comprises an anionic metalloid silane modified inorganic oxide and the cationic remnant of a transition metal bidentate or tridentate compound represented by the formula: T—[—SiR′R″ODM(Q)3]a−n[Cat]b+m wherein each of the symbols above is defined within the subject application.

Abstract: Improved asymmetric hyperfiltration membranes and their method of preparation and use are disclosed. The membranes are fashioned from polyimides and conditioned with a lubricating oil. Permselective separation of aromatic hydrocarbons from non-aromatic hydrocarbons in a feed stream may be accomplished using the membranes under hyperfiltration conditions.

Abstract: Compositions comprising a component containing (i) an acidic oxide support, (ii) an alkali metal and/or alkaline earth metal or mixtures thereof, (iii) a transition metal oxide having oxygen storage capability, and (iv) palladium promote CO combustion in FCC processes while minimizing the formation of NO.sub.x. The acidic oxide support preferably contains silica alumina. Ceria is the preferred oxygen storage oxide.

Abstract: A silica-containing bayerite alumina is prepared by reacting aluminum sulfate, sodium aluminate and sodium silicate at a pH of about 10.5 to 11.5, preferably in the presence of finely divided magnesium hydroxide "seeds". The silica-containing bayerite is heated to obtain a hydrothermally stable silica "stabilized" eta alumina which may be used in the preparation of catalytic compositions.

Abstract: Compositions comprising a component containing (i) an acidic oxide support, (ii) an alkali metal and/or alkaline earth metal or mixtures thereof, (iii) a transition metal oxide having oxygen storage capability, and (iv) a transition metal selected from Groups Ib and/or IIb of the Periodic Table provide NO.sub.x control performance in FCC processes. The acidic oxide support preferably contains silica alumina. Ceria is the preferred oxygen storage oxide. Cu and Ag are preferred Group I/IIIb transition metals. The compositions are especially useful in the cracking of hydrocarbon feedstocks having above average nitrogen content.

Abstract: Compositions comprising a component containing (i) an acidic oxide support, (ii) an alkali metal and/or alkaline earth metal or mixtures thereof, (iii) a transition metal oxide having oxygen storage capability, and (iv) a transition metal selected from Groups Ib and/or IIb of the Periodic Table provide NO.sub.x control performance in FCC processes. The acidic oxide support preferably contains silica alumina. Ceria is the preferred oxygen storage oxide. Cu and Ag are preferred Group I/IIb transition metals. The compositions are especially useful in the cracking of hydrocarbon feedstocks having above average nitrogen content.

Abstract: A porous inorganic oxide carrier body for immobilizing living cells is prepared from inorganic oxide particles such as clay particles. The particles have an average particle size of from 0.01 to 20 microns, and the carrier body has a total pore volume of 0.05 to 1.0 cc/g and an average pore diameter of 50 to 700 .ANG., and has substantially no pore volume in the range of 800 .ANG. or greater. The carrier is prepared by forming a mixture containing the particles, a liquid medium and optional ingredients including zeolite and activated carbon, and forming the mixture into a shaped carrier body which may be optionally dried and calcined. Typical shapes of the carrier include spheres, cylinders, rings, honeycombs and shaped monoliths. Bacteria and other microorganisms immobilized on the carrier are useful for treatment of contaminated waste streams or contaminated vapors, or for other uses for which microorganisms are used such as the synthesis of chemicals.

Abstract: A method of creating an environment which promotes dehalogenation and/or degradation of halogenated organic chemical contaminants in water, sediment, or soil by adding a combination of fibrous organic matter and certain multi-valent metal particles to the water, sediment or soil.

Abstract: A supported polyolefin catalyst activator, comprising a four coordinate anion having a direct chemical bond to a catalyst carrier, wherein said anion is comprised of a neutral, three coordinate compound, MR.sub.3, and a carrier having oxygen containing functionalities, wherein M is selected from the group comprising boron, tellurium, aluminum, gallium, indium and mixtures thereof, and R's can be the same or different and are selected from the group comprising alkyls, alkoxys, alkenyls, halogen substituted alkyls, alkoxys, and alkenyls, aryls, aryl halides, halides and mixtures thereof; and a cation counter ion to said anion, wherein said cation is a protonated base or a Lewis Acid capable of protonating or abstracting a moiety, such as an alkyl or aryl, from a transition metal containing catalyst precursor resulting in a cationic transition metal species.

Abstract: The present invention encompasses a monolithic multi-component composite polyolefin catalyst particle comprising at least two distinct supported catalyst components wherein each catalyst component is capable of producing a resin having a melt index different from at least one other catalyst component under constant reaction conditions. Methods of producing and using the multi-component catalyst are disclosed.

Abstract: A homogeneous amorphous aluminum phosphate composition with a surface area of 100 to 300 m.sup.2 /g and a pore volume in pores with diameters of less than 1000 nm of at least 1.0 cm.sup.3 /g, in which phosphorus and aluminum are present in a molar ratio in the range from 0.9:1 to 1:1 and which is characterized in that it is present in the form of microspherical particles with a particle size of 10 to 250 .mu.m and displays a bimodal pore-size distribution in the pore-diameter range of less than 1000 nm is suitable as a cracking catalyst, as a catalyst support, especially for polymerization catalysts, as a flatting agent, as an adsorption agent and as a thickening agent.

Abstract: The present invention is directed to a fuel additive comprising at least one adduct of (A) a polyolefin of 300 to 10,000 number average molecular weight substituted with at least 0.3 (e.g., from about 1 to 4) mono- or dicarboxylic acid producing moieties (preferably acid or anhydride moieties) per polyolefin molecule, (B) an amido-amine or thioamido-amine characterized by being a reaction product of at least a polyamine and an alpha, beta-unsaturated compound of the formula: ##STR1## wherein X is sulfur or oxygen, Y is --OR.sup.4, --SR.sup.4, or --NR.sup.4 (R.sup.5) , and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same or different and are hydrogen or substituted or unsubstituted hydrocarbyl.

Abstract: Additives suitable for improving the flow and/or depressing the cloud point of crude oils, lubricating oils and especially fuel oils are polymers containing defined alkyl groups of at least 8 carbon atoms chain length. Such polymers are either (a) of a mixture of monomers having only two alkyl groups being at least 3 carbon atoms longer than the other or (b) of a mixture of monomers having only three alkyl groups each differing by at least 3 carbon atoms and the middle alkyl group being half the combined length of the other two. Alternatively, the polymer may be derived from a monomer having the two defined alkyl groups (a) or the three defined alkyl groups (b).

Abstract: Additives for improving the low temperature flow properties and oxidative stability of hydrocarbon oils are disclosed, which comprise the condensation reaction product of alkylated phenol and sulfurizing agent, wherein:(a) the polymer composition has a number average molecular weight of at least about 3,000 and a molecular weight distribution of at least about 1.5;(b) in the alkylated phenol reactant the alkyl groups (i) are essentially linear; (ii) have between 6 and 50 carbon atoms; and (iii) have an average number of carbon atoms between about 12 and 26; and(c) not more than about 10 mole percent of the alkyl groups on the alkylated phenol have less than 12 carbon atoms and not more than about 10 mole percent of the alkyl groups on the alkylated phenol have more than 26 carbon atoms. The additives may also be produced in a branched backbone form in which monomer reactants are copolymerized with certain tri- or tetrafunctional comonomers.

Abstract: There is disclosed a lubricating oil composition containing a dual additive combination for reducing the low temperature viscosity properties thereof. Such additive combination comprises a Component A, e.g., a polymethacrylate or esterified styrene/maleic anhydride copolymer and a Component B, e.g., sorbitan tristearate.

Abstract: Copolymers of dialkyl fumarate and vinyl acetate having Specific Viscosities of at least 2.5 at 2% polymer concentration in xylene at 40.degree. C., and wherein at least 50 wt. % of said alkyl groups are C.sub.20 to C.sub.24, are useful as dewaxing aids, particularly in propane dewaxing.

Abstract: Aqueous fluids having a good combination of anti-bacterial properties, stability in hard water, a reduced foaming tendency in soft water and at times a reduced boron content are obtained by the use as additive of a combination of a water-soluble hydroxy di- or tri- carboxylic acid an an excess of an alkanolamine, additive concentrates for incorporation into the aqueous fluids and the aqueous fluids themselves.

Abstract: The invention concerns a lubricating oil containing less than 3 wt. % of a mixture of (1) a lubricating oil pour depressant and (2) a polyoxyalkylene ester, ether, ester/ether or mixture thereof containing one or more C.sub.10 to C.sub.30 alkyl groups and polyoxyalkylene glycol group of molecular weight 100 to 5000, the alkylene group of said polyoxyalkylene glycol containing from 1 to 4 carbon atoms. The pour depressant can for example be a vinyl acetate copolymer, a polyalkylacrylate, a polyalkylmethacrylate or an esterified olefin/maleic anhydride copolymer.