Abstract: A process for removing sulfur compounds from a liquid composition immiscible with water, comprising at least partially oxidizing the sulfur compounds by contacting a liquid composition comprising at least one sulfur compound with an aqueous oxidizing solution comprising at least one oxidant in the presence of at least one polyoxometalate and amphiphilic solid particles.

Abstract: Process for manufacturing an aqueous hydrogen peroxide solution comprising the following steps: —hydrogenating a working solution which comprises an alkylanthraquinone and/or tetrahydroalkylanthraquinone and a mixture of a non-polar organic solvent and a polar organic solvent wherein the concentration of non-polar organic solvent in said mixture is equal to or higher than 30 wt %; —oxidizing the hydrogenated working solution to produce hydrogen peroxide; and —isolating the hydrogen peroxide, wherein the polar organic solvent is a substituted cyclohexane carbonitrile.

Abstract: A process includes preparing a crude aqueous hydrogen peroxide solution by auto-oxidation of at least one alkylanthraquinone in a working solution that includes at least one organic solvent and the at least one alkylanthraquinone; and washing the crude aqueous hydrogen peroxide solution with a mixture of at least one organic solvent and an organophosphorous chelating agent to create a purified aqueous hydrogen peroxide solution having less than 100 ppb Cr; wherein the organic solvent used for the washing is not part of the working solution and is not recycled into it.

Abstract: A process for removing sulfur compounds from a liquid composition immiscible with water, comprising at least partially oxidizing the sulfur compounds by contacting a liquid composition comprising at least one sulfur compound with an aqueous oxidizing solution comprising at least one oxidant in the presence of at least one polyoxometalate and amphiphilic solid particles.

Abstract: A process includes preparing a crude aqueous hydrogen peroxide solution by auto-oxidation of at least one alkylanthraquinone in a working solution that includes at least one organic solvent and the at least one alkylanthraquinone; and washing the crude aqueous hydrogen peroxide solution with a mixture of at least one organic solvent and an organophosphorous chelating agent to create a purified aqueous hydrogen peroxide solution having less than 100 ppb Cr; wherein the organic solvent used for the washing is not part of the working solution and is not recycled into it.

Abstract: Process for manufacturing a purified aqueous hydrogen peroxide solution, in which a crude aqueous hydrogen peroxide solution is subjected to a washing operation with at least one organic solvent, and wherein an organophosphorus chelating agent is added to the organic solvent.

Abstract: A composition which comprises 1,1,1,3,3-pentafluorobutane-(HFC-365mfc) and 1,1,3,3-pentafluoropropane (HFC-245fa) in a weight ratio HFC-365mfc/HFC-245fa of from 60:40 to 75:25.

Abstract: A method for the production of a solution of peracetic acid (PAA) containing at most 23 wt % PAA according to which acetic anhydride optionally containing acetic acid (AA) is added in a controlled manner to a diluted solution of hydrogen peroxide, wherein the diluted solution of hydrogen peroxide (H2O2) has a concentration and is used in an amount such that it if the amount of water required to hydrate all of the added acetic anhydride is subtracted therefrom, it still contains in weight, at least 50% (preferably 54%) of water based on the total amount of water and hydrogen peroxide.

Abstract: A method for the production of a solution of peracetic acid (PAA) containing at most 23 wt % PAA according to which acetic anhydride optionally containing acetic acid (AA) is added in a controlled manner to a diluted solution of hydrogen peroxide, wherein the diluted solution of hydrogen peroxide (H2O2 ) has a concentration and is used in an amount such that it if the amount of water required to hydrate all of the added acetic anhydride is subtracted therefrom, it still contains in weight, at least 50% (preferably 54%) of water based on the total amount of water and hydrogen peroxide.

Abstract: Process for manufacturing a purified aqueous hydrogen peroxide solution, in which a crude aqueous hydrogen peroxide solution is subjected to a washing operation with at least one organic solvent, and wherein an organophosphorus chelating agent is added to the organic solvent.

Abstract: A composition which comprises 1,1,1,3,3-pentafluorobutane-(HFC-365mfc) and 1,1,3,3-pentafluoropropane (HFC-245fa) in a weight ratio HFC-365mfc/HFC-245fa of from 60:40 to 75:25.

Abstract: A process for removal of hydrogen peroxide from an aqueous solution which can be employed for the treatment of aqueous solutions such as industrial waste-water streams from hydrogen production plants, paper bleaching factories and semi-conductor manufacturing plants, wherein said process comprises contacting at a pH above 4, an aqueous solution containing hydrogen peroxide with a fixed bed of an iron oxide for catalytically decomposing the hydrogen peroxide.

Abstract: Batch process for the manufacture of oxidized starch by contacting an aqueous medium comprising already oxidized starch with native starch and with at least one oxidizing agent selected from a peroxide compound or from an alkali metal hypochlorite, and by reacting them at a temperature below the gelatinization temperature of the native starch and of the oxidized starch, the reaction being conducted in the presence of a homogeneous manganese-based complex coordination catalyst when the oxidizing agent is a peroxide compound. The resulting oxidized starch can be used as an additive for the paper industry or for the food industry.

Abstract: Process for the manufacture of aerated concrete construction materials comprising the following steps: (a) mixing a composition comprising at least water, a cementitious material, calcium oxide, a compound comprising reactive silicon dioxide, a source of oxygen, and a compound selected from sodium carbonate, sodium bicarbonate and sodium hydroxide; (b) pouring the mixture of step (a) into a mould and allowing the mixture to set, thus forming a stiffened body; (c) removing the stiffened body from the mould; (d) optionally cutting and shaping the stiffened body, and (e) curing the stiffened body.

Abstract: Batch process for the manufacture of oxidized starch by contacting an aqueous medium comprising already oxidized starch with native starch and with at least one oxidizing agent selected from a peroxide compound or from an alkali metal hypochlorite, and by reacting them at a temperature below the gelatinization temperature of the native starch and of the oxidized starch, the reaction being conducted in the presence of a homogeneous manganese-based complex coordination catalyst when the oxidizing agent is a peroxide compound. The resulting oxidized starch can be used as an additive for the paper industry or for the food industry.

Abstract: The invention relates to a process for the bleaching of paper pulp with one or more peroxide oxidizing agents, in which the pulp is first treated in a pretreatment step with at least one inorganic magnesium derivative combined with at least one carboxylic acid or its salt, except its magnesium salt, or with at least one carboxylic acid at least partially saponified with Mg2+, the carboxylic acid being substituted by at least one electrodonating group or comprising at least one carbon-carbon double bond.

Abstract: Process for the bleaching of paper pulp in which an aqueous suspension of paper pulp is subjected to a bleaching treatment with hydrogen peroxide in the presence of magnesium hydroxide and of at least one poly-?-hydroxyacrylic acid, its salt or their mixture.

Abstract: A process for the bleaching of mechanical paper pulp with one or more peroxide oxidizing agents, in which the pulp is pretreated in a pretreatment step with one or more chelating agents chosen from aspartic acid and its derivatives, substituted on the nitrogen atom, characterized in that the initial pH of the pretreatment step, just before adding the one or more chelating agents, is above 8.

Abstract: A composition which comprises 1,1,1,3,3-pentafluorobutane (HFC-365mfc) and 1,1,1,3,3-pentafluoropropane (HFC-245fa) in a weight ratio HFC-365mfc/HFC-245fa of from 60:40 to 75:25.

Abstract: Composition comprising at least one hydrofluoroalkane and at least one fluoropolyether.