Abstract: Disclosed are lubricating oil compositions having improved anti-wear properties, comprising a major portion of a lubricating oil and an effective amount of an oil soluble additive combination comprising a basic zinc alkyl dithiophosphate having alkyl groups made from primary alcohols containing from about 6 to about 20 carbon atoms and a non-acidic lubricating oil anti-rust compound comprising a succinic anhydride substituted with an alkenyl group which has about 8 to about 50 carbon atoms reacted with an alcohol, an amine, or mixtures thereof.The zinc dithiophosphate is generally made from primary alcohol containing about 7 to about 12 carbon atoms and generally has a zinc to phosphorous ratio of about 1.15-1.5:1.

Abstract: Aromatic aldehydes wherein the aldehyde group is directly attached to the aromatic ring are oxidized directly to phenolic compounds in the vapor phase. Tar and carbonaceous product formation are minimized by the method of preheating and mixing the reactants and by a rapid reaction temperature quench of the reaction mixture to below 0.degree. C. Mixing temperature is 300.degree.-350.degree. C. and reaction temperature is 400.degree.-600.degree. C. at 1-10 atmosphere pressure.

Abstract: 2-Hydroxy-3-alkylsulfoxypropyl-1 esters of arene polycarboxylic acids.

Abstract: The present disclosure relates to a method for the stabilization of certain phosphorus-vanadium-oxygen complex catalysts by the repetitive reactivation of such catalysts using a specified class of reactivating agents. The present method is specifically applicable to the stabilization of phosphorus-vanadium-oxygen complex catalysts which are suitable for the production of maleic anhydride from aromatic or aliphatic feed streams. In a specific instance, the stabilization process incorporates passing a feed stream of an aliphatic hydrocarbon and oxygen over a phosphorus-vanadium-oxygen catalyst to cause it to deactivate, thereafter contacting the deactivated catalyst with a specified class of reactivating agents and thereafter repeating this sequence at least once. This process tempers the catalyst so it deactivates at a lower rate and is improved in its performance.

Abstract: A method for increasing the tolerance of hydrocarbon polymer sulfonate surfactant materials to divalent ions especially calcium when such materials are injected into subterranean formations containing high divalent cation contents which comprises contacting the hydrocarbon polymer sulfonate surfactant with an oxidizing agent at oxidizing conditions. The specific hydrocarbon polymer sulfonate surfactants disclosed are those produced from lower aliphatic olefins such as isobutylene, butene-1, butene-2 or propylene or other similar olefinic materials which have been polymerized to average equivalent molecular weights of from about 350 to 675 or higher. The preferred oxidizing agent is hydrogen peroxide.

Abstract: The present disclosure relates to a method of reactivation of phosphorus-vanadium-oxygen complex catalysts which are useful in the oxidation of hydrocarbons in particular acylic aliphatics such as alkanes or alkenes to oxidation products including aldehydes, ketones, acids and anhydrides. The present method of reactivation is implemented by passing selected halide containing materials over the catalyst at reactivation conditions to effect formation of a volatile vanadium compound which is removed from the catalyst. This procedure is applicable to reactivation of catalyst which during normal oxidation process become deactivated.

Abstract: Efficiency in the production of woven polypropylene fabrics is greatly improved through the use of an additive comprising fine silica particles. Addition of the abovesaid additive to the resin prior to extrusion of the ribbon yarns increases weaving efficiency, reduces burling time, decreases the frequency of weaving faults such as lost or broken picks, and permits the use of larger weft yarn packages.

Abstract: Polypropylene composition having improved knit-line properties comprising from 5 to 30 parts by weight of a saturated ethylene-propylene rubber, correspondingly 95 to 70 parts by weight crystalline homopolymeric polypropylene and from 0.01 to 0.2 parts by weight of an organic peroxide per each 100 parts by weight of the total concentration of saturated ethylene-propylene rubber and polypropylene.

Abstract: A process for producing alkenyl substituted anhydrides which comprises introducing one mole of polypropene or polybutene having a number average molecular weight of 200-3000, 0.8-5.0 moles of the anhydride of an unsaturated dicarboxylic acid and 5-200 ppm of an additive which suppresses the formation of tarry materials and undesirable reaction side products and/or improves yield, into a reaction zone, reacting said materials at a temperature from about 150.degree. C to about 300.degree. C to form the alkenyl anhydride, distilling off and condensing the unreacted anhydride from the reaction mixture, recovering the alkenyl substituted anhydride, and returning at least a portion of the recovered unreacted anhydride to a reaction zone for reaction with an alkenyl material.

Abstract: Disclosed are a process for manufacturing metal dithiophospates, and metal dithiophosphate compositions. The process for manufacturing zinc, barium, cadmium, magnesium or nickel dithiophosphates comprises reacting phosphorus pentasulfide with one or more alcohols to form a dithiophosphoric acid; neutralizing said dithiophosphoric acid with zinc, barium, cadmium, magnesium or nickel base in the presence of an acidic promoter; and reacting a substantial portion of the excess acidic promoter with a weak base. The metal dithiophosphates and lubricating oils containing said dithiophosphates are also disclosed.

Abstract: An improved process is disclosed whereby coal, coke or a combination thereof can be converted in good yield to a very high surface area active carbon with a unique and useful combination of properties, which carbons are particularly useful for water purification. Novel active carbons having a very high surface area which substantially have a cage-like structure exhibiting microporosity are disclosed.

Abstract: Polypropylene composition having improved impact and flow properties containing phthalide.

Abstract: This invention relates to the continuous production of iso- or terephthalic acid in a stirred reaction zone by catalytic air oxidation of m- or p-xylene in the presence of a benzoic acid-water liquid solvent system at constant gauge pressure within the range of 7 to 21 kg/cm.sup.2 wherein oxidation temperature within the range of 175.degree. to 235.degree. C. is maintained substantially constant by the novel control thereof by only varying the flow rate of water condensate reflux to the oxidation zone. The invention further pertains to novel means for achieving such temperature control.

Abstract: Adding a finely divided oxide to a terminal olefin polymerization catalyst comprising a hydrocarbon-soluble transition metal compound and a Group II or III metal organic compound reduces the amount of fibrous polymer produced.

Abstract: Isolating protein from yeast cells by alkaline extraction is enhanced by growing a continuous culture of yeasts at the lowest possible dilution rate (space velocity) where the cell yield is not significantly affected and/or by aging the continuous yeast culture in a second stage of continuous fermentation having a residence time from 2 to 4 hours and a pH of from 4 to 10.

Abstract: A water-soluble polyester resin having a molecular weight of not more than about 4,000 and an acid number of at least 35 which comprises (1) a branched chain three-dimensional polyester core having an acid number less than about 25 comprising the reaction product of a polyhydroxyl compound, dicarboxylic acid compound, monocarboxylic acid compound and polycarboxylic acid compound having at least three acyl moieties, and (2) pendant carboxylic acid moieties comprising polycarboxylic acid compounds having at least three acyl moieties, wherein said polyester resin contains no non-benzenoid unsaturation and none of the hydroxyl compounds have secondary hydroxyl groups and compositions comprising an aminoplast suitable for use as polyester fabric bulking agents.

Abstract: Functional yeast protein products with good thermogelability, emulsification capacity, foaming ability, solubility, and whippability are prepared by an alkali extraction of whole yeast cells preceded by a hot water extraction and/or a dilute alkaline extraction. These products are good substitutes for either casein, sodium caseinate, or egg white, and can also be used in making stabilized acidic protein beverages.

Abstract: Novel amino-substituted derivatives of 4-t-butylphthalic anhydride are used as monomers to produce novel polyimides with improved solubility characteristics. Increased solubility in organic solvents permits these polyimides to be used in coating applications where structurally similar polyimides could not otherwise be used.

Abstract: The catalyst comprises a hydrogenation component comprising a member selected from the group consisting of a metal of Group VIA, compounds of a metal of Group VIA, and mixtures thereof supported on a co-catalytic solid support comprising mordenite and a porous refractory inorganic oxide. The hydrogenation component may be characterized further by a member selected from the group consisting of rhenium, compounds of rhenium, a non-noble metal of Group VIII, compounds of a non-noble metal of Group VIII, and mixtures thereof. The preferred Group VIA metal is molybdenum.The catalyst preparation may comprise blending finely-divided mordenite into a sol or gel of the refractory inorganic oxide to form a blend, gelling the blend, if a sol is present, to form a gel by adding a solution of a suitable inorganic ammonium-affording compound, and drying and calcining the gel to form a calcined material.

Abstract: The apparatus comprises a distributing means for distributing solid particles into a vessel, a particle entry duct having an inlet end at its top and an outlet end at its bottom, and a flexible connecting means for connecting the particle entry duct to the distributing means. The top of the connecting means is attached to the particle entry duct at a point along the axis of the particle entry duct and the bottom of the connecting means is attached to the distributing means at a point where the center of gravity of the distributing means is located. The length of the connecting means is such that the bottom of the particle entry duct is on the same level as the top of the distributing means or below the top of the distributing means and the elements of the apparatus are positioned such that the periphery of the particle entry duct falls within the periphery of the top of the distributing means. Any suitable particle distributing means may be employed.