Patent application number | Description | Published |
20090118543 | METHOD FOR PRODUCING TRIFLUOROMETHANESULFONIC ANHYDRIDE - This method for producing trifluoromethanesulfonic anhydride reacting trifluoromethanesulfonic acid with phosphorus pentoxide to produce trifluoromethanesulfonic anhydride, wherein hardening of the reaction solution due to polyphosphoric acid, which is produced as a byproduct, is prevented by using an excess amount of trifluoromethanesulfonic acid with respect to the phosphorus pentoxide. | 05-07-2009 |
20090143613 | POTASSIUM PERFLUOROALKANESULFONATE AND METHOD FOR PRODUCING THE SAME - This method for producing a potassium perfluoroalkanesulfonate includes an electrochemical fluorination step in which an alkanesulfonyl halide compound is subjected to electrochemical fluorination in anhydrous hydrogen fluoride, thereby to generate a production gas containing perfluoroalkanesulfonyl fluoride as the main component. In addition, for example, the methods may include a gas absorption step in which the production gas is reacted with an aqueous solution of potassium hydroxide, thereby to generate a gas absorbed solution containing potassium perfluoroalkanesulfonate, a purification step in which impurities such as potassium fluoride, potassium hydroxide, and potassium sulfate, are removed, and a concentration and collection step in which the aqueous solution from which the impurities are removed is concentrated and dried. In the electrochemical fluorination, for example, it is possible that the proton concentration in the reaction solution is maintained in the range of 150 to 1,500 ppm to suppress the formation of byproducts. | 06-04-2009 |
20100305345 | PROCESS FOR PRODUCING FLUORINE-CONTAINING COMPOUNDS - This process for producing fluorine-containing compounds includes liquid-phase fluorination by introducing a raw material compound and fluorine gas into a solvent to replace hydrogen atoms in the raw material compound with fluorine atoms. More specifically, the process for producing fluorine-containing compounds includes (1) promoting fluorination by dissolving the raw material compound in anhydrous hydrofluoric acid and introducing into a liquid-phase fluorination solvent, or (2) promoting fluorination by dissolving the raw material compound in a perfluoro compound having a plurality of polar groups in a molecule thereof and introducing into a liquid-phase fluorination solvent. According to these processes, a fluorination reaction can be carried out at high yield and without containing hardly any isomers while using a hydrocarbon compound as is for the raw material. | 12-02-2010 |
20110210295 | Conductive silica sol composition, and molded article produced using the same - The present invention provides a conductive silica sol composition containing at least a silica sol composition, and at least one selected from perfluoroalkyl sulfonates perfluoroalkyl sulfone imide salts, and bis(fluorosulfonyl) imide salts. | 09-01-2011 |
20110269990 | PROCESS FOR PRODUCING PERFLUOROALKYLSULFONIC ACID SALT - In this method for producing a perfluoroalkylsulfonic acid salt, there is provided a method for producing a perfluoroalkylsulfonic acid salt with a low fluorine content, which is a simple method to achieve a high yield, | 11-03-2011 |
20120009113 | METHOD FOR PRODUCING BIS(FLUOROSULFONYL)IMIDE - According to the method for producing bis(fluorosulfonyl)imide of the present invention, first, an unreacted mixed liquid is prepared by mixing a first fluorosulfonic acid with urea in a condition free of a chemical reaction between the first fluorosulfonic acid and urea. Then, the unreacted mixed liquid is dripped into a heated second fluorosulfonic acid or a heated bis(fluorosulfonyl)imide, allowing a chemical reaction between fluorosulfonic acid and urea to proceed. In this method, generation of carbon dioxide gas and heat during the chemical reaction can be controlled. | 01-12-2012 |
20120014859 | METHOD FOR PRODUCING BIS(FLUOROSULFONYL)IMIDE SALT, METHOD FOR PRODUCING FLUOROSULFATE, AND METHOD FOR PRODUCING BIS(FLUOROSULFONYL)IMIDE ONIUM SALT - According to the method for producing bis(fluorosulfonyl)imide salt of the present invention, the method for producing fluorosulfate, and the method for producing bis(fluorosulfonyl)imide onium salt, first, an aqueous solution is prepared by dissolving a mixed liquid containing bis(fluorosulfonyl)imide and fluorosulfonic acid in water. Then, the aqueous solution is neutralized with an alkaline compound, producing bis(fluorosulfonyl)imide salt and fluorosulfate. In the methods, bis(fluorosulfonyl)imide salt, fluorosulfate, and bis(fluorosulfonyl)imide onium salt can be obtained safely and easily. | 01-19-2012 |
20120022269 | FLUORINE-CONTAINING N-ALKYLSULFONYLIMIDE COMPOUND, MANUFACTURING METHOD THEREFOR, AND METHOD OF MANUFACTURING AN IONIC COMPOUND - According to the method for producing fluorine-containing N-alkylsulfonylimide compound, the fluorine-containing N-alkylsulfonylimide compound can be produced safely with a high recovery rate by alkylating fluorine-containing sulfonylimide acid or fluorine-containing sulfonylimide acid salt with dialkylsulfuric acid or dialkylcarbonic acid. | 01-26-2012 |
20120184763 | METHOD FOR PRODUCING PERFLUOROSULFONIC ACID HAVING ETHER STRUCTURE AND DERIVATIVE THEREOF, AND SURFACTANT CONTAINING FLUORINE-CONTAINING ETHER SULFONIC ACID COMPOUND AND DERIVATIVE THEREOF - In this method, R | 07-19-2012 |
20120193587 | CONDUCTIVE COATING FILM-FORMING AGENT, METHOD FOR PRODUCING THE SAME, AND MOLDED ARTICLE USING THE SAME - This conductive coating film-forming agent contains a coating film-forming component having a polyol structure, and at least one kind of a compound selected from bis(fluorosulfonyl)imide salts represented by (FSO | 08-02-2012 |
20120302787 | PROCESS FOR PRODUCING PERFLUOROBUTANESULFONIC ACID SALT - A process for producing a perfluorobutanesulfonic acid salt (PFBS salt) is provided. By the process, the yield is improved and PFOS salt content is reduced. Electrochemical fluorination is conducted in a reaction solution comprising anhydrous hydrogen fluoride to generate perfluorobutanesulfonyl fluoride, and the fluoride is hydrolyzed to produce a perfluorobutanesulfonic acid salt. The process for producing a perfluorobutanesulfonic acid salt includes: a step in which liquid phase components generated in the electrochemical fluorination cell are withdrawn and a first a perfluorobutanesulfonic acid salt fraction is prepared therefrom; and a step in which gaseous phase components discharged from the electrochemical fluorination cell are collected and a second perfluorobutanesulfonic acid salt fraction is prepared therefrom. The reaction solution in the electrochemical fluorination cell is regulated so as to have a perfluorooctanesulfonyl fluoride content of 500 ppm or lower by withdrawing the liquid phase components from the electrochemical fluorination cell. | 11-29-2012 |
20130066110 | METHOD FOR MANUFACTURING FLUORINE-CONTAINING IMIDE COMPOUND - With this method for manufacturing fluorine-containing imide compounds, a method for manufacturing a fluorine-containing imide compound ((Rf | 03-14-2013 |
20130137899 | PROCESS FOR PRODUCING FLUORINE-CONTAINING SULFONYLIMIDE COMPOUND - In this process for producing a fluorine-containing sulfonylimide compound, a process for producing a fluorine-containing sulfonylimide compound ((Rf | 05-30-2013 |
20140037529 | METHOD FOR PRODUCING BIS(FLUOROSULFONYL)IMIDE SALT, METHOD FOR PRODUCING FLUOROSULFATE, AND METHOD FOR PRODUCING BIS(FLUOROSULFONYL)IMIDE ONIUM SALT - According to the method for producing bis(fluorosulfonyl)imide salt of the present invention, the method for producing fluorosulfate, and the method for producing bis(fluorosulfonyl)imide onium salt, first, an aqueous solution is prepared by dissolving a mixed liquid containing bis(fluorosulfonyl)imide and fluorosulfonic acid in water. Then, the aqueous solution is neutralized with an alkaline compound, producing bis(fluorosulfonyl)imide salt and fluorosulfate. In the methods, bis(fluorosulfonyl)imide salt, fluorosulfate, and bis(fluorosulfonyl)imide onium salt can be obtained safely and easily. | 02-06-2014 |
20140339096 | METHOD FOR PRODUCING PERFLUOROSULFONIC ACID HAVING ETHER STRUCTURE AND DERIVATIVE THEREOF, AND SURFACTANT CONTAINING FLUORINE-CONTAINING ETHER SULFONIC ACID COMPOUND AND DERIVATIVE THEREOF - In this method, R | 11-20-2014 |