Abstract: Process for preparing a chlorohydrin, comprising the following steps: (a) a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture thereof whose alkali metal and/or alkaline earth metal content is less than or equal to 5 g/kg, a chlorinating agent and an organic acid are reacted so as to give a mixture containing at least chlorohydrin and by-products (b) at least part of the mixture obtained in step (a) is subjected to one or more treatments in steps subsequent to step (a) (c) at least one of the steps subsequent to step (a) consists in oxidation at a temperature greater than or equal to 800° C.

Abstract: Method for producing sodium carbonate, according to which an aqueous sodium chloride solution (5) is electrolyzed in a membrane-type cell (1) from which an aqueous sodium hydroxide solution (9) is collected, and carbonated by direct contact with carbon dioxide (15) to form a slurry of crystals of a sodium carbonate (16), and the slurry or its mother liquor is evaporated (3) to collect sodium carbonate (18).

Abstract: Process for preparing a chlorohydrin, wherein a polyhydroxylated aliphatic hydrocarbon whose total metal content, expressed in elemental form, is greater than or equal to 0.1 ?g/kg and less than or equal to 1000 mg/kg is reacted with a chlorinating agent.

Abstract: Continuous process for producing a chlorohydrin, wherein a polyhydroxylated baliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture thereof is reacted with a chlorinating agent and an organic acid in a liquid reaction medium whose steady-state composition comprises the polyhydroxylated aliphatic hydrocarbon and esters of the polyhydroxylated aliphatic hydrocarbon whose sum content, expressed as moles of polyhydroxylated aliphatic hydrocarbon, is greater than 1.1 mol % and less than or equal to 30 mol %, the percentage being based on the organic part of the liquid reaction medium.

Abstract: Process for preparing a chlorohydrin, wherein a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture thereof is subjected to reaction with a chlorinating agent in the presence of a liquid phase comprising heavy compounds other than the polyhydroxylated aliphatic hydrocarbon and having a boiling temperature under a pressure of 1 bar absolute which is at least 15° C. greater than the boiling temperature of the chlorohydrin under a pressure of 1 bar absolute.

Abstract: Plane structure composed of a cohesive assembly of contiguous cellular cells having any cross section and essentially parallel walls from one cell to another, characterized in that the walls of the cells comprise at least two portions based on different polymeric compositions, the junction between said portions being substantially parallel to the plane of the structure.

Abstract: Process for preparing an epoxide, wherein a reaction medium resulting from the reaction of a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture thereof with a chlorinating agent, the reaction medium containing at least 10 g of chlorohydrin per kg of reaction medium, is subjected to a subsequent chemical reaction without intermediate treatment.

Abstract: Parasiticidal aqueous suspension Parasiticidal aqueous suspension typically comprising from 1 to 15% by weight of silica and from 30 to 45% of alkali metal bicarbonate, and method for controlling the development of parasites on animals reared in buildings, according to which the animal's environment in the building is brought into contact with this aqueous suspension.

Abstract: Process for preparing a chlorohydrin, comprising a step in which a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture thereof is subjected to reaction with a chlorinating agent containing hydrogen chloride and at least one other step, carried out in apparatus made from or covered with materials which are resistant to the chlorinating agent under the conditions in which this step is realized.

Abstract: Process for preparing an epoxide, wherein halogenated ketones are formed as by-products and there is at least one treatment intended to remove at least part of the halogenated ketones formed.

Abstract: An electrical circuit for reducing electromagnetic fields in a vicinity of an electrolyzer, including a primary circuit supplying the electrolyzer and a secondary electrical circuit arranged in the vicinity of the primary circuit, for a current to flow in the opposite direction to that current flowing in the main circuit to compensate for electromagnetic fields generated by the main circuit.

Abstract: Tablet comprising at least one biologically active substance and an excipient, in which the excipient contains calcium carbonate and at least one additive selected from fatty acids, their salts, their esters, lipid materials, polysaccharides, polyvinylpyrrolidone and polyvinylpyrrolidone derivatives, acrylic compounds, mono-, di- or triglyceride esters, animal proteins, and mixtures of at least two of these. Method for producing these tablets. Use of calcium carbonate in tablets containing at least one biologically active substance, for the prolonged release of this substance.

Abstract: A method for drying a wet polymer including a drying carried out in a dryer containing at least heating element inside which a heat-transfer fluid flows, the heat-transfer fluid being low-pressure steam.

Abstract: A plant for producing hydrogen peroxide and using the hydrogen peroxide so made for manufacturing an oxirane by reaction between an olefin and said hydrogen peroxide, wherein the hydrogen peroxide is manufactured by an alkylanthrahydroquinone (AO) process in which an aqueous hydrogen peroxide solution is obtained by extraction, with substantially pure water, of a mixture derived from the oxidation of at least one alkylanthrahydroquinone, without a subsequent washing, purification treatment or combination thereof.

Abstract: The present invention provides solid alkaline fuel cells comprising anion exchange membranes which comprise diamines or polyamines coupled to a support polymer via a sulfonamide linkage. At least one nitrogen atom of the diamine or polyamine is a quaternized nitrogen atom acting as an anion exchange group. The anion exchange membrane exhibits favourable properties that render it suitable for use in a solid alkaline fuel cell.

Abstract: A process for preparing coated particulate alkali metal percarbonate in which coating is carried out by mixing percarbonate with a solid particulate coating and agent and optionally with an aqueous liquid, so that the amount of water present during mixing does not exceed 12% of the total weight of the mixture. Coated alkali metal percarbonate obtainable by this process and its use as active bleach in detergent compositions is also disclosed.

Abstract: Coated sodium percarbonate particles having a mean particle size of from 300 to 1600 ?m containing a sodium percarbonate core surrounded by at least one coating layer, the coating layer comprising at least one coating agent and small sodium percarbonate particles of a mean particle size smaller than 100 ?m. Process for the production of these particles by coating sodium percarbonate core particles with at least one coating agent and with small sodium percarbonate particles of a size smaller than 100 ?m. Use of these particles as bleaching agent in detergent compositions and detergent compositions containing them.

Abstract: The present invention provides a composition wherein a homo-polymer or copolymer of caprolactone has been produced by polymerising caprolactone, optionally with a co-monomer, in the presence of a polymerisation catalyst and an initiator, and the use of such a composition according for the manufacture of a polyurethane. The present invention further provides a process for the production of a homopolymer or a co-polymer of caprolactone comprising polymerising a composition comprising: (i) at least one caprolactone monomer and optionally a co-monomer; and (ii) a catalyst comprising (a) bismuth ethylhexanoate and ethylhexanoic acid, (b) bismuth ethylhexanoate and bismuth neodecanoate, or (c) zinc neodecanoate and zinc oxide.

Abstract: Process for the recovery of a polymer in solution Process for the recovery of a polymer in solution in a solvent, the combined material forming a homogeneous medium, according to which: a) a nonsolvent is added to the homogeneous medium so as to render it heterogeneous; b) the heterogeneous medium is subjected to shearing and to a supply of thermal energy sufficient to evaporate the solvent and nonsolvent and to provide polymer particles; c) the polymer particles are recovered.

Abstract: Process for the separation of volatile material from particulate polyolefin comprising: (a) feeding the particulate polyolefin to a purge vessel, optionally causing it to move through the vessel in substantially plug-flow mode, (b) heating the particulate polyolefin in the purge vessel to a temperature greater than 30° C. but insufficiently high to cause the particles to become agglomerated, and/or maintaining the polyolefin at a temperature in this range in the purge vessel, (c) feeding air to the purge vessel counter-current to the movement of the particulate polyolefin to remove volatile material therefrom, (d) transferring the particulate polyolefin from the purge vessel to a cooling vessel wherein the particulate polyolefin moves through a cooling zone where it cools to the desired temperature and (e) removing the particulate poly-olefin from the cooling vessel, wherein the particulate polyolefin is a functionalized polyolefin.