Abstract: A process for the catalytic reforming of a hydrocarbonaceous feedstock at reforming conditions including a pressure of from about 50 to about 250 psig. is disclosed. A portion of the hydrogen-rich vapor phase recovered from the reforming zone effluent at a relatively low pressure is compressed and recycled to the reforming zone without further purification. The balance of said hydrogen-rich vapor phase, or the net hydrogen, is compressed to a relatively high pressure and recontacted with at least a portion of the liquid hydrocarbon phase recovered from said low pressure separation to effect a further purification of said net hydrogen and to maximize the recovery of C.sub.3 -C.sub.6 + material in the liquid phase.

Abstract: Alcohols may be obtained by an indirect hydration of olefinic hydrocarbons in which the olefinic hydrocarbon is first esterified by treatment with an inorganic acid to form dialkyl and alkyl hydrogen salts. These salts are then trans-esterified by treatment with an organic acid to form an organic ester. The reconstituted inorganic acid is separated from this mixture by stripping and recycled, while the organic esters are then treated with water in a hydrolysis step to reconstitute the organic acid and form the desired alcohol and ether. The alcohol product is separated from the ether which may then be further treated by thermal decomposition or hydrolysis to form an additional amount of the desired alcohol.

Abstract: Dehydrogenatable hydrocarbons are dehydrogenated by contacting them, at dehydrogenation conditions, with a catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a nickel component, and a zinc component with a porous carrier material. A specific example of the nonacidic catalytic composite disclosed herein is a combination of a platinum group component, a nickel component, a zinc component, and an alkali or alkaline earth component with a porous carrier material in amounts sufficient to result in a composite containing about 0.01 to about 2 wt. % platinum group metal, about 0.05 to about 5 wt. % nickel, about 0.01 to about 5 wt. % zinc, and about 0.1 to about 5 wt. % alkali metal or alkaline earth metal.

Abstract: A method of reactivating a mercaptan oxidation catalytic composite of an adsorptive support and a metal chelate comprising contacting the composite with an aqueous solution of a quaternary ammonium compound and a linear ionic compound at a temperature of from about 55.degree. C. to about 175.degree. C.

Abstract: Alcohol may be synthesized by treating olefinic hydrocarbons with carbon monoxide and hydrogen in a hydroformylation zone utilizing a rhodium complex catalyst to effect the reaction. Following formation of the alcohol, the catalyst may be extracted from the alcohol by treatment with an aqueous ammonium hydroxide solution. Thereafter the aqueous ammonium hydroxide solution containing the catalyst is then stripped of ammonia by treatment with carbon monoxide or carbon monoxide containing gas. The aqueous ammonium hydroxide solution containing the rhodium complex catalyst is then stripped of a portion of water and the remaining solution is thereafter recycled to the hydroformylation zone.

Abstract: Screen member for use in fixed or rotating screen support devices and in either a vibrating or non-vibrating mode for grading or dewatering comprises a first plurality of elongated, parallel surface wire members which are formed by extruding a resilient, abrasion resistant layer of elastomeric material completely around a core portion which is more rigid than the elastomeric layer. A second plurality of elongated, parallel support rod members arranged transverse to the first plurality are also formed by extruding a layer of elastomeric material completely around a more rigid core portion. The first and second plurality of wire members are bonded to each other at every intersection by a partial melting together of the contacting elastomeric layers under pressure.

Abstract: A process for isomerizing glucose into fructose having the improvement which comprises the recovery of high purity glucose from the isomerization stage effluent by contacting the mixture with an adsorbent comprising an X zeolite containing potassium cations at the exchangeable cationic sites thereby selectively adsorbing the glucose from the effluent stream mixture, thereafter recovering high purity glucose and recycling the high purity glucose to the isomerization stage.

Abstract: An improved adsorbent comprising a crystalline aluminosilicate, method of manufacture of the adsorbent and improved process for separating a component from a feed mixture comprising an aqueous solution of a mixture of different components, such as a mixture of saccharides. In the process the mixture is contacted with the adsorbent, which selectively adsorbs a component from the feed mixture. The adsorbed component is then recovered by contacting the adsorbent with a desorbent material such as water to effect the desorption of the adsorbed component from the adsorbent. There is an undesirable tendency for the silicon constituent of the crystalline aluminosilicate to dissolve in the aqueous system. The improvement to the adsorbent and process comprises the coating of the adsorbent with ethylcellulose which substantially reduces the undeirable dissolution.

Abstract: Woven hybrid glass cloths which may be utilized as chip carrier substrates and as inner layers in multi-layer laminate circuit boards which will be stable due to a desired co-efficient of thermal expansion may be prepared by weaving fiberglass with a second material which possesses a co-efficient of thermal expansion of less than 5.0.times.10.sup.-6 inch/inch/.degree.C. The mixture of fiberglass in this material may be used as a warp and a fill yarn. The thus woven cloth will possess a dimensional stability suitable for use in preparing multi-layer materials and for use in direct mounting ceramic chip carriers to this chip carrier substrate. Examples of materials which possess a co-efficient of thermal expansion of less than the desired number will include nylon filaments, ceramics, boron nitrite filaments, etc.

Abstract: A catalyst regeneration process and apparatus for the oxidative removal of coke from a coke-contaminated fluid catalyst. The process comprises of high temperature coke combustion zone, a lower temperature heat removal zone and an upper disengagement zone. Coke-contaminated catalyst, oxygen-containing gas and cooled regenerated catalyst from the heat removal zone are contacted in the high temperature combustion zone, the temperature of which is controlled by adjusting the rate at which catalyst is recycled to the heat removal zone. The heat removal zone contains a relatively dense-phase fluid catalyst bed in which is immersed heat removal means such as cooling coils. The level of this fluid catalyst bed, and thus the extent of immersion of the heat removal means in the bed, is maintained by controlling the quantity of regeneration gas passed into the transfer line that carries catalyst upward from the heat removal zone to the combustion zone.

Abstract: An apparatus for regenerating coke-contaminated fluid catalyst is disclosed which comprises a vertical combustion chamber, an inlet to said chamber for spent catalyst and regeneration gas, a fluid catalyst collecting means within the upper portion of said chamber, a first catalyst withdrawal conduit in communication with said collecting means, a heat removal chamber possessing heat removal means super adjacent said chamber, a second catalyst withdrawal conduit connected to said heat removal chamber and a mixing conduit connecting said first and second withdrawal conduits, wherein a control system senses the catalyst temperature in the first withdrawal conduit downstream of the mixer conduit, formulates an output signal via a temperature control means having an adjustable set point, and regulates the flow rate of regenerated catalyst through said mixing conduit via transmission of said output signal to a flow control means responsive thereto.

Abstract: Vent cap assembly for a monitoring well permits venting from a well riser pipe while positively preventing contamination of the well by vandals. Tabs having apertures are integrally attached to the pipe and to an axially elongated vent cap. A padlock may be placed through the apertures to prevent unauthorized removal of the cap, but whether or not the cap is locked, the tab on the riser pipe causes the inner end surface of the cap to be spaced slightly above the riser pipe to insure that venting will always be possible.

Abstract: A process is disclosed for the recovery of a phenol-free cumene fraction from a mixture thereof with phenol and water. Said mixture is introduced into a first fractionation column at conditions to separate a bottom fraction comprising a major portion of said phenol and an overhead fraction comprising said cumene and water and a residual portion of said phenol. The overhead fraction is condensed to form an aqueous phase containing a minor portion of the residual phenol and a water-saturated organic phase comprising cumene and the balance of said residual phenol. The water-saturated organic phase is then further treated in a second fractionation column whereby cumene is recovered as an overhead fraction substantially free of phenol.

Abstract: Group VIII metals immobilized on an aminated polysaccharide in a highly dispersed state are active catalysts in the hydrogenation of unsaturated organic materials. Chitin and chitosan are preferred supports, with platinum and palladium among the more active Group VIII metals in hydrogenation.

Abstract: An improved multiconversion zone process which results in an increased yield of motor fuel blending stocks from butanes is disclosed. A butane mixture is fractionated into isobutane-rich and normal butane-rich process streams, with the normal butane-rich stream being passed into an isomerization zone. All of the C.sub.4 's in the isomerization zone effluent and the normal butane-rich process stream are passed through a dehydrogenation zone. The entire dehydrogenation zone effluent stream is passed into an alkylation zone, and the alkylation zone effluent is fractionated. An alkylate-containing normal butane stream is recycled to the feed fractionator, and alkylate from the feed fractionator is admixed with an alkylate stream from the alkylation zone product fractionator to produce a product stream.

Abstract: A process for producing gasoline from a charge stream comprising a mixture of butanes and butylenes is disclosed. The quality of a product alkylate is improved by increasing the butene-2 content of an alkylation zone feed stream. A first portion of the charge stream is passed into a dimerization zone in which isobutylene is reacted with normal butylenes, with butene-1 being reacted to a greater extent than butene-2. A C.sub.8 hydrocarbon-containing product stream and a C.sub.4 stream having a higher butene-2 concentration than the charge stream are recovered from the dimerization zone. This high butene-2 content C.sub.4 stream is admixed with a second portion of the charge stream and passed into an alkylation zone wherein butylenes are reacted with isobutane to yield a second product stream containing C.sub.8 hydrocarbons.

Abstract: Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with an acidic multimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a cobalt component, a tin component, a phosphorus component and a halogen component with a porous carrier material. The platinum group, cobalt, tin, phosphorus and halogen components are present in the multimetallic catalyst in amounts respectively, calculated on an elemental basis, corresponding to about 0.01 to about 2 wt. % platinum group metal, about 0.05 to about 5 wt. % cobalt, about 0.01 to about 5 wt. % tin, about 0.01 to about 5 wt. % phosphorus and about 0.1 to about 3.5 wt. % halogen. A specific example of the type of hydrocarbon conversion process disclosed is a process for the catalytic reforming of a low-octane gasoline fraction wherein the gasoline fraction and a hydrogen stream are contacted with the acidic multimetallic catalyst disclosed herein at reforming conditions.

Abstract: A process for separating a normal paraffin from a mixture of the same with another structural class of hydrocarbon selected from the cyclic hydrocarbons having greater than six carbons per molecule and the branched chain hydrocarbons. The process comprises contacting the mixture at adsorption conditions with an adsorbent comprising silicalite. The normal paraffin is selectively adsorbed and will preferably be recovered from the adsorbent by desorption with a desorbent material.

Abstract: Improved method of joining a rigid thermoplastic fitting to a rigid thermoplastic well screen having longitudinal support rods utilizes pressure and friction generated heat to bond a reduced diameter tubular, rigid thermoplastic sleeve portion of the fitting to the inner surface of the screen. The method permits the joining, without the use of solvents, of screens and fittings of PVC, polypropylene, or ABS, for example, which have the same outer diameters. The sleeve portion of the fitting has an outer diameter which is greater than the inner diameter of the well screen. The assembly method requires that the parts to be mated be rotated rapidly relative to each other as they are forced axially into interfering, telescopic engagement. The overlapping members are fused along a generally conically tapered plane with the material which is melted during rotation being deposited in the circumferential spaces between the screen's support rods.