30 results about "Tetrachloroaluminate" patented technology

An electrolyte for use in electrochemical cells is provided. The properties of the electrolyte include high conductivity, high Coulombic efficiency, and an electrochemical window that can exceed 3.5 V vs. Mg / Mg+2. The use of the electrolyte promotes the electrochemical deposition and dissolution of Mg without the use of any Grignard reagents, other organometallic materials, tetraphenyl borate, or tetrachloroaluminate derived anions. Other Mg-containing electrolyte systems that are expected to be suitable for use in secondary batteries are also described.

The invention discloses a method of recycling a catalyst used in Friedel-Crafts process for producing an aryl-s-triazine ultraviolet absorber. The method includes the following steps: 1) with chlorobenzene as a solvent, performing a Friedel-Crafts reaction to cyanuric chloride and aromatic hydrocarbon under a catalyst, AlCl3, to prepare a reaction solution which contains an intermediate of the aryl-s-triazine ultraviolet absorber; 2) adding a tetrachloroaluminate ionic liquid, as an extract agent, to the reaction solution so as to separate the intermediate of the aryl-s-triazine ultraviolet absorber from the AlCl3 or tetrachloroaluminate ions, and recycling the extracted and separated AlCl3 or tetrachloroaluminate ions as the catalyst or the extract agent for producing the aryl-s-triazineultraviolet absorber via the Friedel-Crafts process. In the method, the tetrachloroaluminate ionic liquid is used as the extract agent to separate the intermediate from the catalyst phase AlCl3, so that the catalyst, AlCl3, used in the Friedel-Crafts process can be recycled. The method eliminates waste water containing the AlCl3 without reduction on product yield, thus significantly improving clean production performance.

The invention relates to a method for converting cis-substituted cyclohexyl into trans-substituted cyclohexyl. The cis-substituted cyclohexyl has a structural formula shown in the specifications, wherein R and R' are the same or different and are an H atom, fatty hydrocarbyl with 1 to 10 carbon atoms, or aromatic hydrocarbyl with 1 to 10 carbon atoms; X and X' are the same or different and are an H element, 1 to 3 halogens, cyan, alkyl, alkoxy, trifluoromethyl or trifluoromethoxy; a catalyst converted from an isomer is weakened aluminum trichloride of which the activity is weakened by a weakening additive, or tetrachloroaluminate; and the reaction temperature is between -20 and +50 DEG C. The conversion method is simple and practicable, other isomerization side reactions in the cyclohexyl conversion process can be effectively inhibited when cyclohexyl conversion reaction is performed, a few isomerization byproducts are generated, yield is high, and a wide application prospect is achieved.