Abstract: A system and/or process for decreasing the level of at least one organic fluoride present in a hydrocarbon mixture by first passing the hydrocarbon mixture to an eductor and educting into the hydrocarbon mixture a catalyst comprising a volatility reducing additive and hydrofluoric acid to produce a hydrocarbon-catalyst mixture, permitting the hydrocarbon-catalyst mixture to undergo a phase separation to produce a hydrocarbon phase having a lower concentration of at least one organic fluoride than the hydrocarbon mixture and to produce a catalyst phase, and withdrawing at least a portion of the hydrocarbon phase to thereby form a hydrocarbon product stream, are disclosed. In an alternate embodiment, a system and/or process for controlling the concentration of at least one organic fluoride and/or the RON of the hydrocarbon mixture by adjusting the amount of volatility reducing additive present in the catalyst are disclosed.

Abstract: A catalyst system comprising a first solid material comprising activated carbon and at least one carburized transition metal; and a second solid material comprising at least one halogen component and alumina, and a method of preparing such catalyst system which comprises mixing a first solid material comprising activated carbon and at least one carburized transition metal and a second solid material comprising at least one halogen component and alumina are disclosed. The thus-obtained catalyst system is employed as a catalyst in the isomerization of a hydrocarbon feedstock comprising saturated hydrocarbons.

Abstract: A system and process for purifying a 1,3-butadiene feedstock containing 1,3-butadiene and various impurities by first introducing the 1,3-butadiene feedstock stream to a separation column to produce an intermediate product stream containing 1,3-butadiene and residual impurities and then introducing the produced intermediate product stream through a condenser to a suitable dryer for removing residual impurities from the intermediate product stream and thereby forming a purified 1,3-butadiene stream. The separation column separates an overhead stream, containing 1,3-butadiene and impurities such as propadiene, water and oxygen, and a bottoms stream, containing impurities such as polymerization inhibitor, ethyl acetylene, 1,3-butadiene dimer, pentane and 1,2-butadiene, from the intermediate product stream which leaves the separation column in the form of a vapor side draw stream.

Abstract: A catalyst system comprising alumina, at least one carburized transition metal, and at least one halogen component, and a method of preparing such catalyst system which comprises incorporating at least one transition metal compound into alumina thereby forming a transition metal-alumina compound; carburizing the transition metal-alumina compound thereby forming a carburized transition metal-alumina compound; and incorporating at least one halogen component into the carburized transition metal-alumina compound, are disclosed. The thus-obtained catalyst system is employed as a catalyst in the isomerization of a hydrocarbon feedstock comprising saturated hydrocarbons.

Abstract: A process for desulfurizing and enhancing the octane of cracked gasoline by first aromatizing the cracked gasoline and, second, hydrodesulfurizing the resulting intermediate product stream.

Abstract: A composition is prepared by a method which comprises mixing a first solid material comprising a platinum group metal, a rhenium component, a porous carrier material and, optionally, a halogen component and a second solid material comprising silica and bismuth. The thus-obtained composition is employed as a catalyst in the conversion of hydrocarbons to aromatics.In an alternate embodiment, hydrocarbons are converted to aromatics by sequentially contacting the hydrocarbons with the first solid material and then the second solid material.

Abstract: A process for activating a hydrogenation catalyst in the presence of an activation agent containing a piperidine compound is disclosed. The thus-activated hydrogenation catalyst is employed as a hydrogenation catalyst in the hydrogenation of a pyridine compound to a piperidine compound.

Abstract: A catalyst system comprising a nitrided silicoaluminophosphate, and a method of preparing such catalyst system which comprises nitriding a silicoaluminophosphate, are disclosed. The thus-obtained catalyst system is employed as a catalyst in the conversion of a hydrocarbon feedstock comprising oxygenated hydrocarbons to olefins.

Abstract: A novel high stability catalyst composition comprising a mixture of zeolite and zinc spinel that has been treated with a reducing gas under high temperature conditions, a method of making such high stability catalyst, and the use thereof for converting paraffin hydrocarbons to olefins and aromatics.

Abstract: A catalyst system comprising a silylated silicoaluminophosphate composition, and methods of preparing such catalyst system, are disclosed. The thus-obtained catalyst system is employed as a catalyst in the conversion of a hydrocarbon feedstock comprising oxygenated hydrocarbons to olefins.

Abstract: The rate of coke formation during the aromatization of gasoline boiling range hydrocarbons in which the hydrocarbons are contacted with a zeolite catalyst is significantly reduced by providing a concentration of a silyating agent in the hydrocarbon feed.

Abstract: This invention is a water-resistant film for lamination to a textile material, and the flexible, laminated product produced therewith. The film has a permeability of at least 0.0008 metric perm-cm. at 20.degree. C. and 65 percent relative humidity and of at least 0.0006 metric perm-cm. at 30.degree. C. and 50 percent relative humidity. The film is formed from a block copolymer having a number average molecular weight of from about 15,000 to about 35,000. The block copolymer contains polymer segments prepared by the amination of a polyether formed by treating a polyethylene glycol with an alkylene oxide of three or more carbon atoms. The product is a laminant of a layer of the described film and a layer of a textile material, and is useful in the formation of water-resistant, moisture permeable articles such as garments, tarpaulins, tents, and the like.

Abstract: A hydraulic volumetric proportioning valve which may be installed in pre-existing hydraulic systems such as aircraft landing gear extension and retraction systems to independently regulate and vary the rate of hydraulic system operation at desired stages of system operation in response to the volume of fluid flow through the system during each stage of system operation.

Abstract: This invention is a method of making heat-resistant polyester, the method being characterized by reacting the polyester consisting of the aromatic dicarboxylic acid and the glycol component of 2-6 carbons with 0.1-5 weight percent of the bifunctional epoxy compound given by the general formula ##STR1## (R is an organic group containing benzene ring) to reduce the amount of the end carboxyl group to below 15 g equivalents per 10.sup.6 g of the polymer.

Abstract: A method of emulsion copolymerization of ethylene and chlorotrifluoroethylene in the presence of a water soluble initiator and a water soluble fluorosurfactant. The fluorosurfactant having the general formula: CA.sub.3 (CF.sub.2).sub.B (C.sub.2 H.sub.4).sub.D -X wherein A is selected from H and F, B is 1 to 10, D is 1 to 6, and X is a hydrophilic group.

Abstract: High molecular weight linear condensation polyesters are stabilized against deterioration by heat by reacting the polyester in molten form with alkylene carbonates in the presence of a catalytic amount of a compound selected from the group consisting of sodium iodide and potassium iodide.

Abstract: A quench system for spinning multifilament synthetic fiber using a fog in the quench stack is disclosed. The system and method comprisea. spinning synthetic multifilament fiber from the molten synthetic polymer through a spinnerette into a quench stack,b. quenching the freshly spun fiber in the quench stack with a combination of flowing air and airless atomized water in the form of a fog, andc. taking up the fiber onto a wound package,d. while controlling the air flow, controlling the formation of the fog, and removing any excess water droplets formed in the quench stack.