4 results about "Hexafluoroethane" patented technology

This utility model discloses a hexafluoroethane purification device, relating to the field of hexafluoroethane production technology. The vibration feeding mechanism includes a motor and a fixed rod fixedly connected to the top of a fixed platform. A transmission platform is fixedly connected to the output end of the motor, and a transmission hole is opened on the surface of the transmission platform. A limit strip is fixedly connected to the top of the fixed rod, and a connecting shaft is slidably connected to the inner wall of the limit strip. A transmission shaft is fixedly connected to the surface of the connecting shaft, and a spring rod is fixedly connected to the top of the connecting shaft. By setting up a vibration feeding mechanism, this application continuously taps the pipe during production, allowing the material to smoothly enter the production device for production. At the same time, the vibration energy causes the material adhering to the inner wall of the pipe to fall off, preventing feed blockage and ensuring production.

This invention discloses a method with a high proportion of supercage Na + This paper describes the application of exchange-site FAU molecular sieves for the adsorption and separation of fluorine-containing electron gases. The molecular sieve possesses the FAU molecular sieve configuration recognized by the International Zygotes Association (IZA), with a chemical composition molar ratio of Al₂O₃:mSiO₂:nNa₂O, where the molar ratio m of the oxide SiO₂ / Al₂O₃ ranges from 5 to 20. This molecular sieve is synthesized using an initial gel prepared from an organic template agent, water, silicon source, and aluminum source. FAU seed crystals are added, and the charge density of the organic template agent is adjusted. Different cage structures of the FAU molecular sieve are assembled. Furthermore, through mixing with a solid salt containing Na and solid-phase exchange, Na in the supercage is achieved. + Control of the exchange site ratio. Compared with the commercial molecular sieve USY2.6, this invention has a high proportion of supercage Na. + Exchange-site FAU molecular sieves can be used for the adsorption and separation of fluorine-containing electronic gases in gas-phase systems, especially pentafluorochloroethane C2F5Cl (R115) and hexafluoroethane C2F6 (R116), and the separation effect is good.

The application discloses a method for capturing hexafluoroethane, comprising the following steps: adsorbing and capturing hexafluoroethane by using a porous material and / or a shaped porous material; the porous material is formed by carboxylate ions of an organic ligand 1,4-naphthalene dicarboxylic acid and Al 3+ forming an ionic coordination bond; and the shaped porous material is obtained by wet granulation by mixing the porous material with a binder and water. The application can realize effective greenhouse gas emission reduction and resource recycling.

This invention relates to the field of haloalkanes preparation, specifically to a method and apparatus for simultaneously preparing multiple perfluoroalkanes. The method includes the following steps: (1) thermally cracking polytetrafluoroethylene to form a pyrolysis gas containing fluoroolefins; (2) reacting the pyrolysis gas with fluorine gas to form crude perfluoroalkanes gas; (3) subjecting the crude perfluoroalkanes gas to deep catalytic fluorination under the action of a catalyst to remove fluoroolefins, followed by distillation to obtain hexafluoroethane, octafluoropropane, or hexafluoroethane, octafluoropropane, octafluorocyclobutane, and decafluorobutane, respectively. This invention achieves the preparation of high-purity perfluoroalkanes such as hexafluoroethane, octafluoropropane, octafluorocyclobutane, and decafluorobutane through pyrolysis, fluorine addition, catalytic fluorination, and distillation processes, featuring low cost, high efficiency, and suitability for industrial production.