Abstract: An apparatus for performing continuous flow chemical reactions such as oxidation, oxidative dehydrogenation and partial oxidation processes involving a reactor design characterized by controlled/optimized addition of a reactant with the objective of: (i) avoiding the explosion regime of the reactant mixture (e.g., hydrocarbon/oxidant mixture); (ii) maximizing the selectivity of the reaction to the desired product; (iii) limiting the reactor temperature gradient and therefore the threat of reaction runaway; and (iv) controlling the operating temperature of the reaction zone so that desirable temperature range is maintained over the entire zone.

Abstract: Process for reduction of bromine index in aromatics, comprising the steps of feeding an aromatics feed stream which contains olefin impurities to a distillation column; withdrawing an overhead stream from the distillation column; subjecting at least a portion of the overhead stream to a treatment for the alkylation or polymerization of olefin in a clay treater to provide a purified overhead stream which is then injected to the aromatics feed stream.

Abstract: A process for the dimerization of at least one olefin with a carbon number between 2 and 10 by contacting the feed with a catalyst system comprising at least: (a) tectometallosilicate zeolite with having TON-type structure, (b) tectometallosilicate zeolite with having MTT-type structure, (c) tectometallosilicate zeolite with the same structure as that of the ZSM-48 zeolite, or (d) silicoaluminophosphate (SAPO) zeo-type with AEL-type structure; under dimerization condition to produce highly branched olefins.

Abstract: The present invention provides a catalyst composition for the production of olefins by oxidative dehydrogenation of hydrocarbons, and of using such catalyst compositions. The catalysts of the present invention include compositions of the formula: XxYyWOz wherein X is at least one element selected from the group consisting of Li, Na, K, Rb, Cs, and Fr; Y is at least one element selected from the group consisting of B, Al, Ga, In, Ti, C, Si, Ge, Sn, and Pb; x is 0.5-2.5; y is 0.05-5; and z is the number of oxygen atoms required to satisfy the valancy of X, Y, and W in said composition. The methods and catalysts of the present invention are specifically useful for the combined production of propene and isobutene at relatively high conversion, selectivity, and productivity, and with minimal side products.

Abstract: A mixed metal oxide Mo--V--Ga--Pd--Nb--X (where X=La, Te, Ge, Zn, Si, In or W) catalytic system providing a higher selectivity to acrylic acid in the low temperature partial oxidation of propane with a molecular oxygen-containing gas.

Abstract: A mixed metal oxide catalytic system consisting of molybdenum, vanadium, lanthanum and palladium providing higher yields of acetic acid in low temperature single stage oxidation of ethane with molecular oxygen-containing gas without or with reduced production of by-products such as ethylene and CO.

Abstract: A mixed metal oxide catalytic system consisting of molybdenum, vanadium, palladium, lanthanum, niobium and X, wherein X is copper and/or chromium, providing higher yields of acrylic acid and acrolein in the low temperature oxidation of propylene with a molecular oxygen-containing gas without the production of side products such as CO.

Abstract: Methods for the catalytic production of vinyl acetate monomer from ethane, ethylene or an ethane/ethylene mixture using a first catalyst containing MoVNbPd, MoVLaPdNbX (where X is Al, Ga, Ge or Si) or MoVNbX (where X is P, B, Hf, Te, As or mixtures thereof) in the first step of oxidation and using a conventional VAM catalyst for the second step. The method produces high yields to acetic acid and vinyl acetate without the coproduction of carbon monoxide.

Abstract: The present invention relates to a new olefin polymerization catalyst composition, and methods of preparing and methods of using the catalysts to polymerize various olefinic monomers in either gas or slurry phase reactions. The principal advance over the previous art of record involves using alumoxanes or combinations of alumoxanes as catalyst preactivators. Polymers prepared from these catalysts posses productivity increased as high as 40 percent. At the same time, the bulk density remains relatively constant. Additionally, the total amount of cocatalyst species needed to effectively practice the invention is relatively low.

Abstract: Wood pulp sheets treated with triacetin and other compounds, or solutions or emulsions of same, having increased softness while maintaining absorbency, and methods for producing same. More particularly, the invention relates to the treatment of wood pulp useful for making a fluff pulp using a softening agent including alkyl ethers, aryl ethers and formic, ethanoic and propanoic esters of low molecular weight glycols, such as triacetin, propylene glycol diacetate and 2-phenoxyethanol.

Abstract: High space velocity catalysts useful in the substantial elimination of chloroprene and trichloroethylene from an industrial product stream of ethane dichloride; the last is useful in the production of vinyl chloride.

Abstract: Improved concrete or mortar materials wherein cement in the precursors for these is replaced by electric arc furnace dust in amounts from 0+% to 4% or more based on the amount of cement by weight. In addition, the electric arc furnace dust can be used as an additive to obtain the same effect.

Abstract: Polyurethane polymers useful as hydrogels wherein the polyol is a specific polyol of block copolymers and a method for desalination of water.

Abstract: A tube connector utilized in connecting a drip tube to a header pipe in a heap leach mining percolation system which provides for strength at the normally weak connection between the header pipe and the drip tube. The tube connector includes a housing providing a fluid passageway extending therethrough between a header pipe and a drip tube. A nipple section is formed at one end of the housing for accommodating the drip tube therearound which is of a relatively short length, and hence, a relatively short bending movement, to significantly reduce breakage of the connector during transportation.

Abstract: An assembly for converting a conventional drill press into an oscillating spindle sander is disclosed. The oscillating spindle sander assembly is comprised of an auxiliary motor which is adapted to be mounted on a drill press. An eccentric drive is attached to the rotating shaft of the auxiliary motor and is used to drive a push rod in a lateral reciprocating motion. The opposite end of the push rod is attached to one of the spindle spokes of the drill press, and causes it to move in a radially reciprocating motion which induces the drill press spindle, drill chuck and a sanding tool mounted therein, to move up and down in an oscillating motion. The oscillating spindle sander assembly of the invention can be easily disabled and the converted drill press returned to normal operation by removing the push rod from the spindle spoke of the drill press.

Abstract: A method for depositing continuous cohesive, non-granular tightly adhering deposits on a substrat by using a rotating fibrous transfer means; deposit starting material is a small particle materials such as diamond powder; or powders of complex materials such as superconducting materials such as of the Y--B--C--O type; discrete deposits may be made and thereafter built-up on the substrate.

Abstract: A sampling device for a batch or continuous pulp digester for reduction of pulp sampling errors such as during a digester "blow" and for improving a pulping process based on the obtained samples.

Abstract: A method for thread laying and a thread laying machine; thread laying has been achieved by a machine that has a vacuum table and above it a gantry with a thread dispensing device on a shuttle operating in an x- and y- direction; the gantry may be fixed to a pair of carriage on the x-axis driven in unison or each of the carriages may be independently driven; curved threads as well as threads on a mold may be laid down on a substrate; typical material produced is sail material of considerable thread pattern complexity; single threads or a multiple of threads may be laid down through one thread head with an adhesive properly coating the threads; multiple thread heads as well associated apparatus such as laser cutters and the like are mounted on the gantry.

Abstract: A hydrometallurgical process for the recovery of precious metal values from refractory precious metal ore materials containing preg-robbing carbon by leaching with a thiosulfate lixiviant, the process comprisinga. providing a body of particles and/or particulates of an ore material having precious metal values and preg-robbing carbonaceous components;b. contacting the body of particles and/or particulates with a thiosulfate lixiviant solution at conditions conducive to the formation of stable precious metal thiosulfate complexes;c. recovering the thiosulfate lixiviant from the body of particles and/or particulates after a period of contact which is sufficient for the lixiviant solution to become pregnant with precious metal values extracted from the ore material; andd. recovering the precious metal values from the lixiviant solution.In a preferred embodiment, the refractory ore materials are low grade precious metal ore materials.

Abstract: Polyurethane polymers useful as hydrogels wherein the polyol is a specific polyol of block copolymers and a method for desalination of water.