Abstract: Metallic silver is deposited from a silver salt solution onto a support by reduction, and thus a catalytically active electrode material for oxygen-consuming electrodes is obtained. For this purpose,(a) an aqueous dispersion of a hydrophobic polymer, in particular a dispersion of PTFE,(b) a silver salt solution and(c) reducing agent for silver ionsare mixed. During this, a pH at which the dispersion employed is stable, and the silver salt is reduced, should be maintained.

Abstract: Activated carbon is produced from lignite coke. It is characterized by the product of the molasses number times the iodine number divided by 1000 being 350 to 1000 and/or the product of the molasses number times the methylene blue number divided by 10 being 500 to 1200. It is produced by adding aqueous alkali or alkaline earth carbonate solution and/or aqueous alkali or alkaline earth hydroxide solution by means of lance during the steam activation of lignite coke in a rotating tube.

Abstract: A process is described for regenerating a coke-deactivated platinum-containing zeolite catalyst material, which includes oxidizing the deactivated catalyst material in the presence of water under conditions which do not cause significant agglomeration of the platinum on the catalyst.

Abstract: A method for the recovery and reuse of an expensive palladium-tin catalyst whereby alkali hydroxide or carbonate is added to the exhausted catalytic solution and/or the spent rinse water solution to precipitate out a catalyst residue, which is then filtered, collected, washed, and dissolved in a hydrohalide acid and adjusted to a predetermined concentration.

Abstract: The process of regenerating a stable organic soluble molybdenum-containing catalyst suitable for epoxidation of olefins with a hydroperoxide which comprises thermally precipitating and separating a molybdenum-containing solid obtained from a spent catalyst stream derived from a molybdenum catalyzed epoxidation of an olefin and solubilizing the precipitated solid by contacting with a liquid composition comprising a peroxy compound, a monohydroxy alcohol, optionally a polyhydroxy alcohol, and an organic dicarboxylic acid present in an amount of at least about 0.2 parts, by weight, of molybdenum contained in said solid.

Abstract: Molded catalyst materials contain metallic cobalt and/or nickel particles and a lubricant, the said particles being obtained by reduction of cobalt oxide and/or nickel oxide particles containing less than 0.1% by weight of alkali metal oxides and/or alkaline earth metal oxides at .ltoreq.500.degree. C., and the molded catalyst material having an indentation hardness greater than 300 kp/cm.sup.2.

Abstract: Olefins are converted into other olefins having different numbers of carbon atoms by contact with a catalyst comprising a silica support containing tungsten oxide and a promoting amount of a least one titaniferous agent and activated under conditions suitable for the titaniferous agent to promote the activity of tungsten oxide and silica for the disproportionation and isomerization reaction.

Abstract: Spent catalysts removed from a catalytic hydrogenation process for hydrocarbon feedstocks, and containing carbon undesired metals contaminants deposits, are rejuvenated for reuse. Following solvent washing to remove process oils, the catalyst is treated either with chemicals which form sulfate or oxysulfate compounds with the metals contaminants, or with acids which remove the metal contaminants, such as 5-50 W % sulfuric acid in aqueous solution and 0-10 W % ammonium ion solutions to substantially remove the metals deposits. The acid treating occurs within the temperature range of 60.degree.-250.degree. F. for 5-120 minutes at substantially atmospheric pressure, after which the rejuvenated catalyst containing carbon deposits can be effectively reused in the catalytic hydrogenation process.

Abstract: A novel catalytic composite for the conversion of hydrocarbons is disclosed. The catalytic composite comprises a refractory inorganic oxide, a first uniform dispersion of a platinum component and a rhenium component, and a second dispersion of an indium component thereover. The composite further comprises a halogen component and a sulfur component. In addition to a novel catalytic composite there is also disclosed a method of preparing the composite and a novel process for the use of the composite.

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 (X 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: Substantially C.sub.2 + alkane hydrocarbons are produced from mixtures of CO and H.sub.2 by contacting same, at elevated temperature, with a catalyst comprising a mixture of iron carbide and ilmenite supported on titania wherein the ratio of the iron present in said supported iron carbide and ilmenite, calculated as Fe.sub.2 O.sub.3, to the surface area of the titania support ranges from about 2.times.10.sup.-3 to 25.times.10.sup.-3 grams per square meter.

Abstract: Spent catalysts are extracted for removal of catalytic metals from inert supports by oxidizing subvalent metals in a solution of a ligand which forms a soluble stable complex with the oxidized metal. The ligands are salts of 1,1-dithiolate, dithiocarbimate and dithiocarbamate dianions for extraction in water and of dithiocarbamate monoions for extraction in organic solvents.

Abstract: An aqueous suspension of activated charcoal provides an inexpensive method for detoxifying large areas of soil and turf contaminated with organic pesticides.

Abstract: A method of restoring activity to a cracking catalyst which has been at least partially deactivated by metals contamination which involves contacting the cracking catalyst with a treating agent comprising a source of aluminum.

Abstract: Device for producing suction in a wound consisting of two-hinged plates that spring-biased apart and contain between them a disposable bag for receiving fluid.

Abstract: The telescoping catheter shunt system comprises first and second telescoping tubings, the first tubing being connected to an anchoring connector mounted in a burr hole, the connector being connected to a catheter adapted to be inserted into a body cavity to be drained and being received within the second tubing which has a larger diameter than the first tubing. A valve assembly is connected to the second tubing and has a control mechanism for controlling the drainage of fluid from the cavity in response to pressure of the draining fluid. The first tubing has a flange at the proximal end thereof which has an outer diameter slightly greater than the inner diameter of the second tubing in which it is received to establish a friction fit between the outer surface of the flange and the inner surface of the second tubing that defines a primary seal for keeping body fluids other than the draining fluid out of the system.

Abstract: A halogen-containing alumina catalyst for the polymerization of olefins to liquid polymers containing a major proportion of polymers having a molecular weight higher than the trimers, said catalyst selectively polymerizing isobutene from a mixture of butenes to produce liquid polyisobutene having a molecular weight higher than about 280; said catalyst containing from about 2 to about 20 wt. % chlorine, bromine or a mixture thereof, and being prepared from an alumina having a purity of at least 99% and a surface area greater than about 150 m.sup.2 /g with at least 10% of the pores having a diameter higher than about 200 .ANG.; said preparation being effected by contacting the alumina with a dry gaseous stream comprising a halogenation agent consisting essentially of volatile chlorinated and/or brominated saturated oliphatic organic compound having a vapor pressure of at least 100 mm of Hg at a temperature of 200.degree.-230.degree. C.

Abstract: A mixture of 1,3-butadiene, carbon monoxide and a monoalkanol of the general formula ROH in which R is a straight or branched chain alkyl group of from 1 to about 12 carbon atoms is reacted in the presence of catalyst to provide alkyl nonadienoate ester at high levels of productivity and little, if any, catalyst decomposition, employing as catalyst, a palladium-ligand complex comprising:(a) a member selected from the group consisting of zerovalent palladium, a palladium-containing composition which provides zerovalent palladium under reaction conditions and palladium (II) salt;(b) a strong ligand selected from the group consisting of tertiary phosphine having a pKa in water of not greater than about 6, a phosphite of the general formula (R.sup.1 O)(R.sup.2 O)(R.sup.3 O)P in which each of R.sup.1, R.sup.2 and R.sup.3 is an alkyl group having at least 9 carbon atoms, an aryl group or an alkaryl group, an arsine of the general formula R.sup.1 R.sup.2 R.sup.3 As in which each of R.sup.1, R.sub.2 and R.sup.

Abstract: The catalytic cobalt compound used in the reaction of olefins with carbon monoxide and water or alkanols which employs an oxidizing treatment is reprocessed according to the present invention. This reprocessing includes in a first embodiment treating the cobaltic residue obtained as the distillation sump product with water and a carboxylic acid having 1 to 4 C atoms. The phases generated are separated and cobalt is recovered from the carboxylic acid/water phase in the form of the corresponding carboxylic acid salt. Where appropriate, the corresponding carboxylic acid salt is transformed into another carboxylic-acid salt.A second embodiment includes the steps of hydrogenating the cobalt containing residue obtained as the distillation sump product, separating the metallic cobalt which is obtained, reacting the metallic cobalt with an acid and where appropriate converting the cobalt salt so obtained into another cobalt salt.

Abstract: According to the specified process chromium oxyfluoride catalysts which have largely lost their activity are regenerated. The catalysts are mixed with magnesium oxide or magnesium hydroxide in the presence of water and converted into a paste. If necessary the mixture must be concentrated by evaporation until it exhibits the consistency of a paste. Finally the paste is dried. The paste is best converted into molded bodies such as, for example, granules before drying.