Abstract: The present invention relates to a process for preparing haloalkanesulfonic acids from sulfur trioxide and a haloalkane, particularly to a process for preparing trifluoromethane sulfonic acid from sulfur trioxide and trifluoromethane.

Abstract: The present invention relates to novel uses of stable inorganic peroxoacids as catalysts in the preparation of alkanesulfonic acids from alkanes and sulfur trioxide, methods for the production of alkanesulfonic acids employing said catalysts as well as reaction mixtures comprising said catalysts. The invention particularly relates to the production of methanesulfonic acid from methane and sulfur trioxide employing stable inorganic peroxoacids as catalysts.

Abstract: The present invention relates to an improved process for manufacturing of alkanesulfonic acids.

Abstract: The present invention relates to a method for the purification of alkanes, especially methane, wherein an alkane comprising impurities, especially methane, is reacted with an active compound, optionally in the presence of sulfur trioxide, whereby the impurities are removed. The present invention furthermore relates to the use of the active compound and sulfur trioxide in the purification of alkanes, especially methane.

Abstract: The present invention refers to a method for reducing SO3 concentration in a mixture comprising methane sulfonic acid and SO3, the method comprising: i. providing a mixture comprising methane sulfonic acid and SO3, ii. determining the amount of an additive necessary to reduce the concentration of SO3 in the mixture by forming a reaction product between the additive and SO3, iii. introducing said predetermined amount of the additive into the mixture; iv. optionally repeating steps ii. and iii., wherein the determination of the amount of additive necessary to reduce the concentration of SO3 in the mixture is performed by measuring conductivity and/or density of the reaction mixture.

Abstract: The present invention relates to a method for the purification of alkanes, especially methane, wherein an alkane comprising impurities, especially methane, is reacted with an active compound, optionally in the presence of sulfur trioxide, whereby the impurities are removed. The present invention furthermore relates to the use of the active compound and sulfur trioxide in the purification of alkanes, especially methane.

Abstract: The present invention refers to a method for the production of haloalkane sulfonic acid, in which SO3 and an haloalkane are contacted with each other in the presence of a solvent, said solvent does constitute a superacid and the combination of said solvent with one or more of the reactants also gives rise to a superacid.

Abstract: The present invention relates to the use of cations or compounds forming stable cations in the production of alkane sulfonic acids as well as methods to produce methane sulfonic acids employing the cations as catalyst.

Abstract: The present invention relates to a method for recycling and/or disposal of halocarbons, particularly fluorinated alkanes, such as trifluoromethane, by reacting said halocarbons with sulfur trioxide, particularly to form halide sulfonic acids and sulfur dioxide.

Abstract: A compound of the formula (I) ALK—SO2—O—O—SO2OX, wherein ALK is a branched or unbranched alkyl group, especially a methyl, ethyl, propyl, butyl, isopropyl, isobutyl group, or a higher alkyl group, and X=hydrogen, zinc, Aluminium, an alkali or alkaline earth metal.

Abstract: The present invention relates to an alkane-sulfonation process using alkane and sulfur trioxide, especially pure sulfur trioxide (100%) under solvent-free conditions in the presence of an initiator. It further relates to the use of a precursor which forms “in-situ” an initiator for manufacturing of alkanesulfonic acids, especially methanesulfonic acids.

Abstract: The present invention relates to a process for preparing haloalkanesulfonic acids from sulfur trioxide and a haloalkane, particularly to a process for preparing trifluoromethane sulfonic acid from sulfur trioxide and trifluoromethane.

Abstract: The present invention relates to novel uses of stable inorganic peroxoacids as catalysts in the preparation of alkanesulfonic acids from alkanes and sulfur trioxide, methods for the production of alkanesulfonic acids employing said catalysts as well as reaction mixtures comprising said catalysts. The invention particularly relates to the production of methanesulfonic acid from methane and sulfur trioxide employing stable inorganic peroxoacids as catalysts.

Abstract: The present invention relates to a process for the production of alkane sulfonic acid with a regulator as well as two specific compounds which can be used as regulator in a respective process.

Abstract: The present invention relates to methods for the production of alkane sulfonic acids, especially methane sulfonic acid, from alkane, especially methane, in which a carbocation, particularly a carbenium ion, is formed, as well as to the use of carbocations, particularly carbenium ions, for the production of alkane sulfonic acids, especially methane sulfonic acid.

Abstract: The present invention relates to an alkane-sulfonation process using alkane and sulfur trioxide, especially pure sulfur trioxide (100%) under solvent-free conditions in the presence of an initiator. It further relates to the use of a precursor which forms “in-situ” an initiator for manufacturing of alkanesulfonic acids, especially methanesulfonic acids.

Abstract: A compound of the formula (I) ALK—SO2—O—O—SO2OX, wherein ALK is a branched or unbranched alkyl group, especially a methyl, ethyl, propyl, butyl, isopropyl, isobutyl group, or a higher alkyl group, and X=hydrogen, zinc, Aluminium, an alkali or alkaline earth metal.

Abstract: A compound of the formula: CH3—SO2—O—O—SO2OH.

Abstract: A process for the preparation of a polymer nanoparticle by a photoinduced emulsion polymerization includes preparing an emulsion comprising at least one surfactant, a dispersed phase and a continuous phase. The dispersed phase comprises at least one polymerizable monomer and the continuous phase comprises water and at least one photoinitiator. The at least one polymerizable monomer is polymerized by exposing the emulsion to an electromagnetic radiation having a wavelength so as to induce a generation of radicals from the at least one photoinitiator.

Abstract: A process for preparing alkanesulfonic acids from sulfur trioxide and an alkane, wherein sulfur trioxide, the alkane and dialkylsulfonoyi peroxide (DASP) react as components, characterized in that the following steps are performed: a) sulfur trioxide is charged in a high-pressure reactor in a condensed phase; b) a temperature of at least 25° C. is set; c) the gaseous alkane is introduced to the high-pressure reactor until a pressure of at least 10 bar is reached; d) dialkylsulfonoyi peroxide (DASP) is added; and e) after a duration of at least 5 hours, the produced alkanesulfonic acid is withdrawn.