4results about How to "High fluorine content" patented technology

The invention belongs to the technical field of eutectic electrolytes, and provides a bicontinuous eutectic electrolyte and a preparation method and application thereof. The bicontinuous eutectic electrolyte provided by the invention has a clear microcosmic bicontinuous phase separation structure, an ion phase region (deep eutectic electrolyte) can realize efficient ion transmission, and a mechanical phase region can ensure sufficient mechanical support; therefore, according to the bicontinuous eutectic electrolyte, the ionic conduction performance and the mechanical performance can be synergistically improved, so that the electrochemical performance and the safety performance of the lithium ion battery are improved, and macroscopically, the bicontinuous eutectic electrolyte has long cycle stability. Meanwhile, at least two of 2, 2, 2-trifluoroethyl acrylate, 2-(perfluorobutyl) ethyl methacrylate and perfluorohexyl ethyl acrylate are used as polymer monomers, so that the fluorine content of the bicontinuous eutectic electrolyte is high, and the long cycle stability of the bicontinuous eutectic electrolyte can be further improved.

The invention relates to the technical field of fluorine-containing chemicals, and provides a perfluoroketone compound as well as a preparation method and application thereof, the structural formula of the perfluoroketone compound is as shown in # imgabs0 #, and Rf1, Rf2 and Rf3 are the same or different and are independently selected from C1-C8 straight-chain or branched-chain perfluoroalkyl groups. The perfluoroketone has the beneficial effects that the carbon number of the perfluoroketone is controllable, and perfluoroketones with different boiling points can be obtained according to requirements; according to the method for preparing the perfluoroketone compound, the adopted raw materials are low in cost, good in safety and stability, non-toxic, harmless and easy to store, the reaction process is controllable, the selectivity is high, products are easy to separate, aftertreatment is simple, and the method is suitable for actual technological production; the perfluoroketone provided by the invention has a relatively low dielectric constant and relatively good heat transfer performance, is non-combustible, and has a very good application prospect in the aspects of semiconductors, refrigeration systems and fire fighting.

This invention relates to the field of mineral utilization, specifically to a method for bacterial leaching of high-fluorine-content uranium ore. The method involves crushing the high-fluorine-content uranium ore and packing it into columns or heaps to obtain a ore heap. The ore heap is then sprayed with an acidic solution. The collected leachate is subjected to uranium adsorption treatment, and the adsorption tailings are defluorinated and recycled back to the spraying process. Subsequently, bacteria are implanted into the ore heap. Then, a spray solution containing boric acid and other acids is used for bacterial leaching. The collected bacterial leachate is subjected to uranium adsorption treatment, and the adsorption tailings are recycled back to the bacterial leaching process. This invention can process uranium ore with a fluorine content of 5% or higher while still exhibiting excellent uranium leaching efficiency and effect.

The application discloses a fluorinated monosaccharide derivative and a synthesis method and application thereof. The fluorinated monosaccharide derivative is composed of three parts, the first part is a 1-substituted monosaccharide group, the second part is a fluorine signal source perfluoro-t-butyl ether group, and the third part is a triazole ring connecting the two. The fluorinated monosaccharide derivative of the application retains the 2-hydroxyl and 6-hydroxyl of the monosaccharide, thereby not affecting the recognition of the monosaccharide in the body, and having good water solubility and biocompatibility. The derivative contains nine magnetically equivalent fluorine-19, can produce a single and strong fluorine signal, and avoids problems such as fluorine signal splitting or low fluorine atom utilization. The fluorine signal strength has a good linear relationship with the concentration of the compound, which provides a basis for in vivo quantification 19 F MRI. 19 F MRI imaging of HepG2 cells has the potential to be used as a tumor selective 19 F MRI contrast agent.