Abstract: The present invention is directed to methods for the preparation of (CnF2n+1)O-substituted arenes and heteroarenes and the direct perfluoralkoxy lation of arenes and heteroarenes with a (CnF2n+1)O-group, respectively. characterized in that a peroxide reagent according to the general formula (I): (CnF2n+1)2 (I) is fragmented in the presence of an electron transferring catalyst under (CnF2n+1)O-radical formation, and said (CnF2n+1)O-radical then substitutes a C—H bond of an arene or heteroarene C—H bond with a (CnF2n+1)O-group, wherein in the above formulae, n is an integer in the range from 1 to 4.

Abstract: The invention relates to a storage medium and to a method for using a storage medium based on ionic compounds, which can reversibly absorb and store chlorine and chlorine from process gases, and which can release the same again by changing the ambient conditions, wherein the storage medium can be reused for this task after discharge.

Abstract: A process comprising at least the steps a) providing a reaction space containing a component including at least one polychlorine anion-containing compound, preferably at least one polychlorine anion-containing compound in the form of an ionic liquid, b) contacting carbon monoxide with said component in the reaction space and there reacting the carbon monoxide to form phosgene-containing product, c) optionally collecting the phosgene from the phosgene-containing product of step b), d) optionally reacting the phosgene from the phosgene-containing product of step b) or the collected phosgene from step c) with a phosgene-reactive component, makes it possible to prepare, in step b), a phosgene-containing product which contains less than 5.0% by weight of Cl2 base on its total weight.

Abstract: The invention relates to a method for producing phosgene, comprising at least the steps of: a) bringing a gas mixture containing carbon monoxide and chlorine into contact with a catalyst, the catalyst containing at least one ionic organic compound which contains monochloride anions and, on contact with chlorine, forms an ionic organic compound containing polychloride anions; b) converting the gas mixture into phosgene on the catalyst. With the invention, phosgene can be produced using less activation energy and in high yields without the use of conventional activated carbon catalysts.

Abstract: The invention concerns methods for dielectrically insulating electrical active parts using certain fluorinated nitroalkanes, as well as compositions and apparatus comprising such compounds.

Abstract: The present invention relates to the preparation of perfluorinated or partially fluorinated peroxides which avoids the use of carbonyl fluoride (COF2).

Abstract: The invention concerns methods for dielectrically insulating electrical active parts using certain fluorinated nitroalkanes, as well as compositions and apparatus comprising such compounds.

Abstract: A method for dielectrically insulating active electric parts A method for dielectrically insulating an active electric part wherein the electrical active part is arranged in a gas-tight housing comprising an insulating gas which contains or consists of a compound of formula (i) Rf1-(O)x-Rf2 wherein Rf1 and Rf2 are identical or different and designated fluorocarbon residues having a H/F ratio of equal to or less than 0.5 and x is 1, 2, or 3.

Abstract: The invention concerns methods for dielectrically insulating electrical active parts using certain fluorinated phosphorous-bearing compounds as well as compositions and apparatus comprising such compounds.

Abstract: The invention concerns compounds, gas mixtures as well as methods for dielectrically insulating electric active parts using certain fluorinated peroxide compounds.

Abstract: The invention concerns methods for dielectrically insulating electrical active parts using certain fluorinated dicarbonyl compounds as well as compositions and apparatus comprising such compounds.

Abstract: A method for dielectrically insulating active electric parts A method for dielectrically insulating an active electric part wherein the electrical active part is arranged in a gas-tight housing comprising an insulating gas which contains or consists of a compound of formula (i) Rf1-(O)x-Rf2 wherein Rf1 and Rf2 are identical or different and designated fluorocarbon residues having a H/F ratio of equal to or less than 0.5 and x is 1, 2, or 3.