Abstract: The use of a cement in a process for pack cementation deposition on a substrate having cavities of minimum equivalent diameter ecm, characterized in that the cement consists of spherical particles each having a diameter d such that d?ecm/10.

Abstract: A process for separating carbon dioxide from a fluid containing carbon dioxide, NO2, and at least one of oxygen, argon, and nitrogen comprises the steps of separating at least part of the fluid into a carbon dioxide enriched stream, a carbon dioxide depleted stream comprising CO2 and at least one of oxygen, argon, and nitrogen and a NO2 enriched stream and recycling said NO2 enriched stream upstream of the separation step.

Abstract: Methods and apparatus for processing a metal using a hybrid burner are described herein. The costs of melting and refining metal, such as iron, using standard burners is subject to fluctuation. The hybrid burners described herein are capable of burning both standard fuels as well as solid carbon-containing fuels, like coal. Through the use of a hybrid burner in either standard or modified electric arc furnaces, the costs for melting and refining an iron source can be reduced both through the costs of fluid hydrocarbon fuel sources and through the reduced or eliminated need for external carbon sources during refining.

Abstract: A gas separation membrane module is formed from a woven fabric of weft membrane hollow fibers and warp yarns. The membrane module includes an active hollow fiber region spanning the inner edges of the two tubesheets. The membrane module also includes two tubesheets formed by encapsulating membrane fiber on one or both ends. The tubesheet on the end includes a first sub-region adjacent the active fiber and a second sub-region extending from first sub-region to the outer face of the tubesheet. The spacing of the warp threads is relatively denser in the first sub-region than in the active region or the second sub-region.

Abstract: Composition (C) comprising per 100% of its mass: from 0.5% to 30% of one or more alcohols of formula (IV): R1—OH??(IV) in which R1 represents an aliphatic radical having from 8 to 36 carbon atoms and from 70% to 99.5% of one or more compounds of formula (I): in which R represents an alkyl radical having from one to eight carbon atoms, n represents an integer greater than or equal to 1 and less than or equal to 10, R1 is as defined previously for formula (IV), at least one of the radicals Z1 or Z2 represents a radical: in which —S— represents the divalent residue of a reducing sugar and p represents a decimal number greater than or equal to 1 and less than or equal to 10 and the other one of the radicals Z1 or Z2 represents a hydrogen atom or said radical.

Abstract: The invention relates to a gaseous mixture containing oxygen (O2) and a volume proportion of 20 to 70% of xenon (Xe) for use as an inhalable drug for preventing or treating hypersensitivity to pain in humans or animals, in particular hypersensitivity to pain expressed as hyperalgesia or allodynia.

Abstract: The invention provides a method for controlling an electronic manometer for measuring pressure (p) inside a pressurized gas receptacle. The manometer comprises at least one pressure sensor, an electronic unit designed for the acquisition, storage and processing of data, and at least one information device device capable of transmitting at least one item of information (p).

Abstract: A method of manufacturing a plate heat exchanger of the type comprising a plurality of plates defining paths for fluids to flow through, the plates being assembled to each other by brazing, and a heat exchanger produced by such a method is presented.

Abstract: The invention relates to a gas filling and dispensing device that includes a body to be provided in the opening of a pressurized gas storage tank, a gas tapping circuit extending between a first upstream end to be connected to the inside of the tank and a second downstream end to be connected to a gas user, a filling duct having a first upstream end to be connected to the inside of the tank and a second downstream end to be connected to a filling member, said filling duct including at least one portion distinct from the tapping circuit, and the filling duct including a first valve, characterized in that the filling duct includes a second isolation valve arranged in series with the first valve.

Abstract: Methods and compositions for depositing metal films are described herein. In general, the disclosed methods utilize precursor compounds comprising gold, silver or copper. More specifically, the disclosed precursor compounds utilize neutral ligands derived from ethylene or acetylene.

Abstract: A plant for the treatment of food product. The plant comprises an apparatus for cooling food products by bringing the products into contact with a cryogenic fluid, a conveyor for introducing the products into the apparatus and for extracting the products from the apparatus, and a detector which determines at least one of (i) a value representative of the quality and (ii) the quantity of products treated by the apparatus.

Abstract: Aggregated absorbent particles having a shape similar to an ellipsoid, which has a first axis (A—A) of length (a), a second axis (B—B) of length (b) and a third axis (C—C) of length (c), the first, second and third axes being orthogonal. The lengths of the first, second and third axes are such that: a>b≧c, and the ratio (a/b) of the length (a) of the first axis (A—A) to the length (b) of the second axis (B—B) is such that: 1.05<a/b<2.50. These aggregated absorbent particles are used in a gas production unit, in particular a PSA unit with radial geometry, for implementing a process of separating a gas flow, such as air or a syngas, with a view to producing, in particular, oxygen with a purity of at least 90%, hydrogen or purified air which can subsequently be separated by cryogenic distillation.

Abstract: The invention relates to a method for improving the separation of water in a tall oil preparation process which comprises:a neutralization stage in which a mixture of soap and water is neutralized with carbon dioxide,a water separation stage in which the aqueous phase containing bicarbonate is separated from the soap, anda cooking stage in which the soap obtained from the preceding stage is cooked with sulfuric acid to form tall oil, the improvement comprising the procedure that, after the neutralization with carbon dioxide but before the water separation stage, a second neutralization with sulfuric acid is carried out.The invention also relates to a process comprising the stages presented above for the preparation of tall oil.

Abstract: Provided is a process for the production of a loop-shaped flame in a glass furnace. The furnace includes, in a rear part, a glass melting zone heated by injecting through at least one port a fuel gas and an oxidizer gas having more than 50 vol % of oxygen and, in a front part, a glass refining zone. The process involves defining a stoichiometry coefficient Ks of the flame in the melting zone or the refining zone according to the following formula: ##EQU1## The oxidizer gas and the fuel gas injected through at least the first port are adjusted to obtain a stoichiometry coefficient Ks in the glass melting zone equal to at most 0.8. A fuel-oxidizer mixture is injected into the refining zone to obtain a stoichiometry coefficient Ks in the refining zone which is greater than the stoichiometry coefficient Ks in the melting zone and which is between 0.8 and 1.5. An oxidizer gas is injected into the melting zone in the vicinity of a fume discharge zone to obtain a quantity of oxygen in the fumes of between 0.

Abstract: A grille (26) for retaining an active material (42) in a receptacle (10) which has a convex bottom (14) delimiting an internal space within the receptacle. The grille (26) has the form of a vault and is disposed in the internal space in contact about a portion of its periphery with the internal wall of the convex bottom of the receptacle. The direction of convexity of the vault (26) and of the bottom (14) are opposite to each other. Use in grilles for the support of an adsorbent material in an adsorber.

Abstract: A binuclear metal complex, comprising a metal-complexed ligand which ligand is formed by the reaction of a dialdehyde and a poly primary amine, which complex is capable of reacting reversibly with molecular oxygen.

Abstract: The filtering structure (20) for a vent device for a liquid container comprises at least two rigid outer elements permeable to gases and to liquids and having confronting parallel bearing surfaces, and an intermediate element 14 permeable to gases and impermeable to liquid is intended to be maintained in a static position between the bearing surfaces of the rigid elements.

Abstract: Solid compositions based on superoxides comprise a material inert with respect to O.sub.2 - anions playing the role of matrix with regard to these anions, and O.sub.2 - anions, these compositions forming a material stable up to about 100.degree. C. This matrix permits the mobility of the O.sub.2 - anions in this temperature region. These compositions are usable as electrolytes (1) in an electrochemical cell.