10results about How to "Overcoming pollution" patented technology

The invention relates to the technical field of oxygen reduction catalysts, in particular to a transition metal-based triatomic oxygen reduction catalyst and a preparation method and application thereof. The invention relates to a preparation method of a transition metal-based triatomic oxygen reduction catalyst. The preparation method comprises the following steps: dispersing carbon nanotubes in a solvent to obtain a dispersion liquid; adding transition metal acetate, urea and 4, 4 '-dihydroxy [1, 1'-biphenyl]-3, 3 ', 5, 5'-tetracarboxaldehyde into the dispersion liquid, performing ultrasonic treatment to obtain mixed liquid, and then performing heating reaction in an inert atmosphere; and after the reaction is finished, naturally cooling to room temperature, filtering, washing and drying to obtain the transition metal-based triatomic oxygen reduction catalyst. The catalyst designed by the invention not only has an efficient catalytic active site, but also remarkably improves the material transmission efficiency and enhances the utilization rate of a catalytic active center by optimizing the structure of a composite material, so that the synergistic enhancement of the electro-catalytic performance is realized.

This application discloses a crystal, a rare-earth-doped crystal, its preparation method, and its applications, belonging to the field of crystal materials. The chemical formula of the crystal is [Gd(L)]. 1.5 (DMA)] n Formula I; in Formula I, L is a ligand formed by deprotonated benzene polycarboxylic acid; benzene polycarboxylic acid is selected from any one of terephthalic acid, phthalic acid, and isophthalic acid; DMA is N , N -Dimethylacetamide; n ∞ represents continuous repetition and infinite extension. The crystal is rare-earth doped, and the chemical formula of the rare-earth doped crystal is [Gd]. 1‑x% (L) 1.5 (DMA)] n :x% Ln 3+ Equation II; in Equation II, x = 0.1~10; Ln 3+ Selected from Tb 3+ Or Eu 3+ Any one of the following. It has potential application value in fields such as fluorescent materials, multicolor display materials, long afterglow materials, X-ray detection and imaging materials, radiation detection dosimeters, and optical information encryption. The preparation method used in this application can be easily achieved through solution reaction under relatively mild conditions, with low cost and strong industrial feasibility.

The present application belongs to the technical field of pesticides, and particularly relates to a fungicide composition for preventing and treating vine gummy stem blight. The fungicide composition for preventing and treating vine gummy stem blight is prepared by compounding thymol with monensin sodium or physcion methyl ether as effective components. The fungicide composition of the present application has different fungicidal mechanisms of thymol, monensin sodium and physcion methyl ether, and the combination of the three components can delay the accumulation and development of pathogenic fungi resistance, and effectively overcome the problems existing in the prevention and treatment of vine gummy stem blight by using single-component pesticides. In addition, the effective components of the fungicide composition of the present application have a synergistic effect on vine gummy stem blight, can improve the prevention and treatment effect on vine gummy stem blight, help to reduce the application dose of the pesticide, and effectively overcome the problems of pesticide residue exceeding the standard and environmental pollution. Furthermore, thymol, monensin sodium and physcion methyl ether in the fungicide composition of the present application are environmentally friendly and green.

The utility model relates to the technical field of dehydration, in particular to a vacuum dehydration drying filter pressing system which comprises a filter press, a vacuumizing module and a heating module, a filter chamber is formed in the filter press, and the heating module is communicated with the filter press to heat materials in the filter chamber. And the vacuumizing module is communicated with the filter chamber so as to extract gas in the filter chamber. The utility model aims to provide a vacuum dehydration drying filter pressing system aiming at at least one technical problem related in the background technology.

The invention relates to a method for preparing cyclododecanone oxime, which comprises the following steps: S1, in the presence of a molecular sieve catalyst, carrying out hydrolysis reaction on an oxime compound and water to obtain a hydrolysis reaction product, and carrying out solid-liquid separation on the hydrolysis reaction product to obtain a solid-phase hydroxylamine molecular sieve and a liquid-phase product; and S2, mixing the solid-phase hydroxylamine molecular sieve, cyclododecanone and an optional solvent, and carrying out an oxime exchange reaction. According to the method provided by the invention, the problems that the catalyst and the reaction liquid are difficult to separate and the catalyst cannot be recycled can be effectively solved, the separation and purification process of the product and the reaction liquid in the oxime exchange reaction is effectively simplified, and a relatively high raw material conversion rate can be realized in a reaction system with relatively small dosage of cyclododecanone. In addition, the method disclosed by the invention is simple to operate and mild in condition, can realize continuous feeding and continuous reaction to generate hydroxylamine, and has a relatively good application prospect.

This invention relates to the field of chemical materials, particularly to metal protection in the metal pickling industry, specifically a method for preparing an imidazole-based ionic liquid corrosion inhibitor and its application. The chemical structural formula of the imidazole-based ionic liquid corrosion inhibitor, 1-(4'-biphenylmethyl)-3-(2-ethoxy-2-oxoethyl)-1H-imidazolium-3-onium bromide, is as follows: The imidazole-based ionic liquid corrosion inhibitor of this invention can be used for the protection against acid pickling corrosion of metal materials, and can withstand various changes in cleaning conditions well. In particular, the pickling corrosion inhibitor of this invention has the technical characteristics of low preparation cost, good solubility, good environmental compatibility, low inhibitor dosage, high corrosion inhibition efficiency, stable performance of the corrosion inhibitor, and long continuous action time. Its application range is wide and it is worthy of large-scale promotion and application.

The application discloses a campus intelligent nutrition meal system based on deep semantic understanding and hybrid optimization, relates to the field of intelligent catering data processing, and comprises a voucher generation module, a demand purification module, a chain graph construction module and a hybrid optimization module.The voucher generation module collects system data containing associated text and transaction records, separates original intention and actual substitute dishes through a language model, and generates a will-violating meal replacement counterfactual voucher.The demand purification module calculates the amount of money to be credited back, the amount of money to be deducted, and the amount of missing supply to be supplemented according to the voucher and transaction data, and obtains the purified demand amount by fusion.The chain graph construction module establishes a directed substitution chain edge based on the voucher, calculates the substitution equivalent weight, and generates a substitution chain account graph.The hybrid optimization module establishes constraint conditions and a global objective function based on the purified demand amount and the substitution chain account graph, executes a multi-stage solving logic, and generates an anti-factual backtracking meal operation instruction.The application effectively corrects the underlying flow data polluted by the will-violating meal replacement behavior, breaks the supply-demand mismatch chain, and realizes accurate resource scheduling.

The utility model relates to robot base technical field, concretely is a kind of rotary base of industrial robot, including chassis, its top end middle part is fixedly connected with circular machine case, the upper end of circular machine case is provided with lifting disc, and the bottom end middle part of lifting disc is fixedly connected with motor;The output shaft of motor is fixedly connected with mounting disc through lifting disc, lifting mechanism is arranged between the lifting disc and chassis.

The invention relates to a method for preparing cyclododecanone oxime, which comprises the following steps: in the presence of a solid acid catalyst, cyclododecanone, an oxime compound and an optional solvent are mixed for oxime exchange reaction, and the solvent is a non-acidic solvent. According to the method disclosed by the invention, the oxime in the oxime compound is replaced by cyclododecanone under the action of the solid acid catalyst instead of using a liquid acid catalyst, so that the problems that the liquid acid catalyst is difficult to separate from the reaction liquid, the catalyst cannot be repeatedly used and the like are solved; the separation and purification process of the product and the reaction liquid in the oxime exchange reaction process is effectively simplified, and the method is a continuous and green production process and has a better application prospect.

This invention relates to the field of traditional Chinese medicine cultivation technology, specifically the application of D6-abelacterol, and particularly its application in promoting the growth of Panax notoginseng, inducing resistance, and improving its quality. Experiments have shown that D6-abelacterol significantly enhances the resistance of Panax notoginseng to pathogens such as black spot disease, improving its disease resistance; simultaneously, it promotes plant growth, significantly increasing the yield and quality of Panax notoginseng, exhibiting a significant growth-promoting effect. The D6-abelacterol provided by this invention is a natural product, possessing environmentally friendly, low-toxicity, and green properties, laying the foundation for the development of the Panax notoginseng industry.