9 results about "Hexafluoroethane" patented technology

The invention discloses a carborane hybridized cobalt cluster-based metal organic framework capable of selectively adsorbing C2HF5 from a mixture containing C2HF5 and C2F6, a preparation method of the carborane hybridized cobalt cluster-based metal organic framework and application of the carborane hybridized cobalt cluster-based metal organic framework in the aspect of hexafluoroethane purification. The carborane hybridized cobalt cluster-based metal organic framework is composed of para-carborane dicarboxylate ions, metal ions Co < 2 + >, chloride ions and organic nitrogen-containing ligands N1, N1, N3, N3, N5, N5-hexa (pyridine-4-yl) benzene-1, 3, 5-triamine, two Co < 2 + > and four oxygen atoms of two para-carborane dicarboxylate ions are bridged with one mu-Cl to form a cobalt binuclear cluster, and the cobalt binuclear cluster is used for preparing the metal organic framework. The cobalt binuclear cluster is coordinated and connected with an organic nitrogen-containing ligand to form a three-dimensional framework with a double-cage structure.

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.

The invention relates to the technical field of chemical equipment, in particular to a water content adjusting device suitable for hexafluoroethane detection, which comprises an adjusting main body, a water inlet pipe, a water outlet pipe and a water outlet pipe, the liquid film adsorption module is arranged at the bottom of the adjusting cavity and comprises a liquid film driving assembly, a liquid flowing rotating disc and a liquid supply assembly, the liquid supply assembly distributes adsorption liquid to the surface of the liquid flowing rotating disc, and the adsorption liquid flows along the surface of the liquid flowing rotating disc under the action of centrifugal force generated by rotation of the liquid flowing rotating disc to form a liquid film; the two-stage drying module is arranged in the adjusting cavity and located above the liquid film adsorption module, and the two-stage drying module sequentially comprises a first drying assembly, a switching assembly and a second drying assembly from bottom to top; and the switching assembly is used for enabling the gas dried by the first drying assembly to enter the second drying assembly or be directly output. The water content adjusting device suitable for hexafluoroethane detection can adjust the treatment process according to the water content of hexafluoroethane to be treated, and the detection accuracy and adaptability are improved.

An apparatus includes a body configured to support a substrate, a first coating, conformal on a surface of the body, that is corrosion resistant to at least one of: boron trichloride, nitrogen trifluoride, hafnium tetrachloride, aluminum trichloride, oxygen gas, chlorine gas, fluorine gas, chlorine trifluoride, hydrogen fluoride, hydrogen gas, ammonia, tungsten hexafluoride, tetrafluoromethane, titanium tetrachloride, molybdenum pentachloride, ozone, tetrafluorosilane, or hexafluoroethane, and a second coating, on the first coating, having a hardness that greater than or equal to about 8 gigapascals.

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.

The present application provides a kind of composition, preparation and its preparation method and purposes for treating skin pruritus.The composition for treating skin pruritus is composed of hydrocarbon halide and / or hydrocarbon.The hydrocarbon halide is one, two or more than three combinations of difluoromonochloromethane, difluoromethane, trifluoromonochloromethane, tetrafluoromethane, dichlorotrifluoroethane, difluoroethane, monochlorodifluoroethane, tetrafluoroethane, hexafluoroethane, chloroethane, pentafluoropropane and / or octafluoropropane.The hydrocarbon is one, two or more than three combinations of methane, ethane, propane, butane, cycloethane, cyclopropane and / or cyclobutane.The composition or preparation of the present application has excellent effects when used as a drug for treating skin pruritus, such as relieving pruritus symptoms quickly, reducing the risk of infection, shortening the course of the disease and reducing the economic burden of patients.

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.

The invention discloses a treatment method of fluorine-containing waste gas, which comprises the following steps: introducing fluorine-containing waste gas containing fluorine-containing gas into an adsorber filled with a modified activated carbon adsorbent at an air speed of 50-5000h <-1 >, the pressure of the adsorber is 0.05-0.5 MPa, the temperature of an adsorbent bed layer is 10-120 DEG C, the fluorine-containing gas comprises hexafluoroethane, and the fluorine-containing gas comprises hexafluoroethane. Nanometer zero-valent metal and a hydrophobic material are loaded on the surface of the modified activated carbon adsorbent, and the nanometer zero-valent metal is selected from at least one of Fe, Co and Mn. The treatment method disclosed by the invention is simple in process and low in investment cost, the fluorine-containing gas in the fluorine-containing waste gas can be efficiently enriched, and greenhouse gas emission is reduced.