Abstract: A process is described for rejuvenating a coke-deactivated noble metal-containing zeolite catalyst material which comprises sulfiding the deactivated catalyst material by contacting with a sulfiding agent such as hydrogen sulfide-containing gas, removing coke from the sulfided catalyst by contacting the catalyst with oxygen in the presence of sulfur dioxide, and thereafter reducing the catalyst in the presence of a reducing agent such as hydrogen. The process permits catalyst reactivation by burning off coke from the catalyst while avoiding excessive agglomeration of the noble metals thereon.

Abstract: An appliance for draining bodily wastes from the natural bladder of a patient, or from an artificial bladder, through a surgically-created stoma, includes a tube insertable into the bladder through the stoma, and an inflatable balloon enclosing a substantial portion of the length of the tube. The balloon has a corrugated tubular portion terminating in a bulbous tip portion. The tip is located at the end of the tube to be received in the bladder, while the corrugated portion extends along the length of the tube which is received in the passage from the bladder created by the stoma. An inflation fluid is introduced into the interior of the balloon through an inlet in an external retainer plug and through fluid passages and ports in the tube. The balloon has an expandable wall which is thicker in the tip portion than in the corrugated portion, so that the corrugated portion can be substantially fully inflated before the tip portion inflates.

Abstract: A cyanohydrination catalyst for the preparation of alphahydroxynitriles from aldehydes and ketones comprises a solid cyclo(D-phenylalanyl-D-histidine) dipeptide having a non-crystalline or amorphous component.

Abstract: A process for producing granular activated carbon using wood as a carbon source is described. The process comprises pulverizing wood to produce a wood powder in a fine granular form, drying the wood powder to produce a dry wood powder having a water content of not more than 10% by weight, adding at least one of coal tar and ground pitch to the dry wood powder in an amount of from 5 to 20% by weight based on the total amount of the wood powder and the binder to prepare a raw material, placing the raw material in a pellet mill, extruding the raw material under such temperature and pressure conditions that it is plasticized, and simultaneously cutting it to produce pellets, carbonizing the pellets by heating, and activating the carbonized pellets in a high temperature steam atmosphere. This process makes it possible to efficiently produce activated carbon of high mechanical and adsorption performance.

Abstract: A process and apparatus for the transportation and heating of granulated materials, particularly of solid particles of catalyst used for hydrocarbon conversion which must be activated or regenerated. The process comprises moving a bed of catalyst particles on travelling bands or floor plates passing through an elongate chamber and eventually inclined to the axis. The bands are subjected to vibrations imparting to said bed an unidirectional motion, and said bed on said bands being exposed to heating by means of electromagnetic radiations of a wave length range from 0.38 .mu.m to 50 mm.

Abstract: Contaminating metals including nickel, vanadium, iron and copper are deposited on a fluid cracking catalyst during the processing of carbo-metallic containing oils such as residual oils, reduced crudes or topped crudes. These contaminating metals lead to undesirous side reactions such as dehydrogenation, coking and methyl group removal which adversely affect conversion and gasoline selectively. Furthermore vanadia deactivates the crystalline zeolite component of the catalyst in addition to causing catalyst agglomeration because of its pentoxide melting point by treatment with a reducing gas such as ammonia. The ammonia is added as ammonia or in the presence of diluents such as nitrogen, carbon dioxide, flue gas, fuel gas and steam. The reaction of ammonia with vanadium produces vanadium nitride which is water insoluble and facilitates the disposal of high vanadium containing spent of deactivated catalyst by landfill techniques.

Abstract: A novel method is provided for regenerating deactivated crystalline zeolite catalysts at low temperature. The organic residue is contacted with a source of alkali or alkaline earth metal cations, or a source of ammonia, and the organic residue, including nitrogenous compounds, is extracted with an organic solvent. The method is particularly useful with deactivated ZSM-5 type dewaxing catalyst.

Abstract: Stable homogeneous hydrogenation catalysts are prepared by reacting a rhodium salt or complex with a hydrazine in the presence or absence of a tertiary phosphine.

Abstract: Regeneration of a phosphorus poisoned automotive exhaust catalyst is accomplished in a preferred embodiment by washing the catalyst or soaking it to the point of incipient wetness with an aqueous solution of an acid such as HCl, HNO.sub.3 or oxalic acid and subsequent heating of the wetted catalyst in air or other oxygen-containing gas.

Abstract: A free-flowing, high activity propylene polymer procatalyst component is prepared by the addition of limited amounts of a mineral oil (e.g., 5 to 25 percent) to the recovered MgCl.sub.2 /TiCl.sub.4 /ED procatalyst. The mineral oil becomes absorbed into the catalyst pores resulting in dry, free-flowing powders which retain their original activity for more than two months. This method of catalyst storage and shipping may prove more convenient than the previously used mineral oil slurries. Further, this technique of introducing suitable inert liquids into the catalyst pores results in substantial improvement in catalyst performance.

Abstract: The viscosity of hydrocarbon solutions of dialkylmagnesium compounds are reduced by using a reducing agent comprising a defined benzene derivative, a substance produced by reacting such a benzene derivative with magnesium or a dialkylmagnesium compound or a mixture of one of the foregoing with an organoaluminum viscosity reducing agent.

Abstract: A process is specified for preparing a chromium- and magnesium-containing catalyst for fluorination reactions by precipitating chromium(III) hydroxide. In this process, 1 mole of a water-soluble chromium(III) salt is reacted with at least 1.5 moles of magnesium hydroxide or magnesium oxide in the presence of water, and the reaction mixture--if necessary by evaporation--is converted into a paste which contains chromium(III) hydroxide and a magnesium salt. The paste is dried and treated with hydrogen fluoride at temperatures of 20.degree. to 500.degree. C.

Abstract: A catalyst support based on aluminum polyphosphate or polyphosphoric acid-impregnated alumina is provided by two alternative techniques. In the first embodiment, an aluminum polyphosphate composition is heated in a dry atmosphere and thereafter impregnated with a zerovalent chromium component under anhydrous conditions. The resulting catalyst is active for olefin polymerization. In the second embodiment, alumina is impregnated with a polyphosphoric acid composition. This resulting polyphosphoric acid impregnated alumina can be used as a support for zerovalent chromium or can be impregnated with a chromium component and oxidized to give an active hexavalent chromium species. The resulting catalysts are advantageous because of their unusual sensitivity to hydrogen thus allowing great leeway in molecular weight control.

Abstract: A solid adsorbent for an unsaturated hydrocarbon comprising (a) (i) a silver or copper(I) halide or (ii) a silver or copper(I) halide and the halide of a bivalent metal, or (iii) a silver or copper(I) halide and an aluminum halide, and (b) polystyrene or a derivative thereof.This solid adsorbent can effectively adsorb an unsaturated hydrocarbon such as ethylene from a gas mixture by contacting the gas mixture therewith at a temperature of -40.degree. C. to 140.degree. C. under normal pressures.

Abstract: A composite mass with a major proportion of inorganic material and a minor proportion of organic material, preferably from industrial waste products, is activated by dehydration of its organic constituents whereupon the mass is subjected to a two-phase pyrolytic process. In a first stage, lasting for 2 to 3 hours it is heated to about 600.degree. C. with carbonization of the organic constituents; in a second stage, lasting for 1 to 2 hours, the mass is sintered or consolidated at a temperature between about 900.degree. and 1150.degree. C.

Abstract: A unique process arrangement is disclosed wherein the effluent flue gas from the removal of hydrocarbonaceous coke from particulate matter by combustion in a mixture of pure oxygen diluted with carbon dioxide is processed to provide a carbon dioxide-rich recycle gas stream to be mixed with oxygen as regenerator feed gas; and a net combustion product stream from which are recovered SO.sub.x and NO.sub.x to eliminate atmospheric emissions, and a pure CO.sub.2 product for export. An alternate embodiment also produces hydrogen or synthesis gas for export.

Abstract: The instant invention is directed to a process for the continuous manufacturing of carbon molecular sieves having average effective pore diameters of from 2 to 15 Angstroms which comprises continuously feeding a charred naturally occurring substrate to a means for heating said substrate and heating said substrate under non-activation conditions, without the use of an externally added pore blocking substance, at a temperature range of about 900.degree. F. (482.degree. C.) to 2000.degree. F. (1093.degree. C.) for a time period of about 5 to 90 minutes.The instant invention is also directed to a carbon molecular sieve, useful for separating gas or liquid mixtures containing components of at least two different molecular diameters, molecular weights or molecular shapes which has the following physical characteristics:(a) an apparent density of from 0.60 to 0.70 g/cc,(b) an oxygen diffusivity (.times.10.sup.-8) of from 500 to 900 cm.sup.2 /sec,(c) an oxygen/nitrogen selectivity ratio of from 5.0 to 8.

Abstract: Process for recovery of zerovalent nickel organophosphorus containing catalyst from a hydrocyanation product stream by controlling the level of unreacted mononitriles in the stream causing the thus treated stream to form two phases and recovering catalyst from the heavier phase.

Abstract: An improved process for recovering energy via an expander turbine axial flow gas compressor set which utilizes hot regeneration gas recovered from the regeneration of fluidized catalytic cracking catalyst, and during turndown conditions when the output of the gas compressor is required to be increased by an excess amount to prevent surge and the excess amount is normally vented to the atmosphere prior to entering the regenerator to prevent afterburn, the process including the steps of:(1) adjusting air compressor air rate set point to at least 10% above surge; thereby(2) increasing air rate to an amount in excess of regeneration requirement;(3) flowing all air compressed to the regenerator;(4) by use of complete combustion catalyst, oxidizing essentially all coke to carbon dioxide,(5) driving the expander with all the hot flue gas produced and thereby;(6) driving the motor-generator thereby generating electricity.

Abstract: A liquid-phase catalyst is represented by the formula X:T:Z:Q, wherein X is molybdenum, tungsten or chromium, T is nickel, X and T being in zero valent form or in the form of a halide, an oxide, a carboxylate of 1 to 20 carbon atoms, a carbonyl or an hydride; Z is a halide source which is hydrogen halide, halogen, or an alkyl halide wherein the alkyl group contains 1 to 20 carbon atoms, and Q is the alkali metal component and is in the form of an iodide, a bromide, a chloride or a carboxylate as defined for X and T, the molar ratio of X to T being 0.1-10:1, the molar ratio of X+T to Q being 0.1-10:1, and the molar ratio of Z to X+T being 0.01-0.1:1.