Abstract: An electrochromic device with side-by-side structure including a common electrode unit, at least one color-changing unit and an electrolyte layer is provided. The common electrode unit includes an electrode layer and an electrode protection layer disposed on the electrode layer. The color-changing unit includes a transparent conductive layer and a color-changing layer disposed on the transparent conductive layer. The common electrode unit and each color-changing unit are arranged on the same plane with an insulating region between two adjacent units. The electrolyte layer covers and connects the electrode protection layer of the common electrode unit and the color-changing layer of each color-changing unit.

Abstract: The present invention provides a method for synthesizing a carboxy-containing anthraquinone derivative, including the following steps: S1, mixing a terminal carboxy-containing dibasic acid with thionyl chloride, and adding toluene as a reaction solvent, followed by adding a catalyst and heating to a predetermined temperature for a reaction; S2, after the reaction is completed, removing the reaction solvent and the thionyl chloride, followed by adding toluene for distillation, to obtain a reactant; S3, mixing the reactant with aminoanthraquinone, adding toluene as a reaction solvent, followed by heating to reflux for a reaction; and S4, after the reaction is completed, removing the reaction solvent, adding a potassium carbonate solution to the residue, filtering it to remove a solid, adjusting the filtrate to a predetermined pH value to precipitate a solid, followed by filtering out, washing, and drying the precipitated solid, to obtain the carboxy-containing anthraquinone derivative.

Abstract: Disclosed is a method for preparing an organic environment-friendly snow-melting agent by using salt mud from a two-alkali method, relates to the field of environmental protection and resource utilization of solid wastes. The method includes the following steps: first, stirring and reacting an organic acid and the salt mud from a two-alkali method at room temperature to obtain a slurry; filtering the slurry to obtain a filtrate; the filtrate is then concentrated and dried by centrifugal spray drying to obtain a solid powder; granulating the solid powder. The method not only realizes the recycling of salt mud solid waste, but also greatly reduces the production cost of organic environment-friendly snow melting agent by turning waste into wealth, moreover, due to the existence of trace ions, the ability of melting snow and ice has obvious synergistic effect.

Abstract: Disclosed is a method for preparing an organic environment-friendly snow-melting agent by using salt mud from a two-alkali method, relates to the field of environmental protection and resource utilization of solid wastes. The method includes the following steps: first, stirring and reacting an organic acid and the salt mud from a two-alkali method at room temperature to obtain a slurry; filtering the slurry to obtain a filtrate; the filtrate is then concentrated and dried by centrifugal spray drying to obtain a solid powder; granulating the solid powder. The method not only realizes the recycling of salt mud solid waste, but also greatly reduces the production cost of organic environment-friendly snow melting agent by turning waste into wealth, moreover, due to the existence of trace ions, the ability of melting snow and ice has obvious synergistic effect.