6results about How to "Caused by pollution" patented technology

The invention provides a phenyl phosphonic acid bis (o-isocyano-phenol) ester ligand which is prepared by the following steps: in an inert gas atmosphere, mixing a compound benzoxazole with anhydrous tetrahydrofuran, cooling to-95 to-65 DEG C, adding an n-butyllithium solution dissolved in an organic solvent, stirring at-95 to-65 DEG C for 0.5-4 hours, adding diphenylphosphoryl chloride, stirring at room temperature for 8-10 hours, filtering, washing, and drying to obtain the phenyl phosphonic acid bis (o-isocyano-phenol) ester ligand. Carrying out post-treatment on the obtained reaction liquid to obtain a phenyl phosphonic acid bis (o-isocyano phenol) ester ligand; compared with the most common organic dye photosensitizer, the copper-based photosensitizer prepared from the phenyl phosphonic acid bis (o-isocyano-phenol) ester ligand overcomes the defect that the catalytic activity of the organic dye photosensitizer is rapidly reduced under long-term illumination, and in addition, the organic dye photosensitizer is easy to generate an aggregation-induced quenching effect; the photosensitizer disclosed by the invention does not generate an aggregation-induced quenching effect; compared with an iridium complex photosensitizer which is commonly used at present, the cuprous photosensitizer provided by the invention is more environment-friendly.

This utility model relates to the field of sealing device technology and discloses a skeleton oil seal for mechanical transmission components. It includes a skeleton body, with sealing lips fixedly connected to both the upper and lower sides of the inner wall of the skeleton body. An installation cavity is formed inside each sealing lip, and a return spring is uniformly fixedly connected around the perimeter of the installation cavity. Installation blocks are fixedly connected to the upper, lower, left, and right sides of the skeleton body. A telescopic column is fixedly connected to the opposite side of each installation block. A return spring is provided on the outer side of the telescopic column, and a protective component is provided on the opposite side of the telescopic column for dust protection of the skeleton oil seal. In this utility model, through the cooperation of the connecting blocks, protective rings, telescopic columns, return springs, sealing lips, bolts, and nuts, the skeleton oil seal for mechanical transmission components can fully protect the skeleton body, preventing external contaminants from entering and causing contamination.

The application discloses a chemical mechanical polishing liquid and a polishing method for soft magnetic alloy. The polishing liquid is composed of the following raw material components in percentage by weight: 1.3wt%-1.8wt% of a chelating agent, 10wt%-13wt% of abrasive, 7wt%-9wt% of a pH buffer, 3wt%-3.5wt% of a corrosion inhibitor, 11wt%-13wt% of an oxidizing agent and the balance of deionized water. The abrasive is acidic silica sol, the oxidizing agent is hydrogen peroxide, the corrosion inhibitor is at least one of glycine, polyaspartic acid, glutamic acid and chitosan, the pH of the polishing liquid is 3-5, and the pH buffer is a citric acid-sodium citrate buffer. The polishing method comprises the following steps: grinding the soft magnetic alloy; performing chemical mechanical polishing rough polishing on the ground soft magnetic alloy by using a rough polishing slurry; performing chemical mechanical polishing fine polishing on the rough polished soft magnetic alloy by using the polishing liquid, so that the soft magnetic alloy with a smooth and flat surface is obtained. The polishing liquid is green, environment-friendly and pollution-free, and the surface of the soft magnetic alloy after polishing is smooth and flat.

The utility model relates to a terminal feeding device which comprises a terminal cutting device and a feeding device. And the terminal cutting device is used for cutting off the terminal. The feeding device is used for installing the cut-off terminals on the coils. The feeding device is arranged on one side of the terminal cutting device and comprises a longitudinal moving device, a transverse moving device and a clamping device, the longitudinal moving device drives the transverse moving device to move, and the clamping device is installed on the transverse moving device and used for clamping terminals. According to the utility model, the terminal cutting device and the feeding device are combined, so that the terminal deformation caused by vibration or collision and the like in the feeding process of the terminal can be effectively avoided, and the yield of products is improved.

The utility model relates to an energy -conserving cloth setting box has the casing and heating assembly, in the casing is used for the setting chamber of waiting for the cloth through of passing, heating assembly includes the heating pipe made of magnetically conductive material, heating pipe inside has the heating chamber of air current passing, the electromagnetic heating coil is wound on the heating pipe, the setting chamber is provided with the air outlet component of installing and directly spraying the hot air current to the cloth of waiting for setting, electromagnetic heating coil passes through the heating pipe heating of changeable magnetic field, air current heating is hot air current from the heating chamber, hot air current passes pipeline and enters the setting chamber, heating assembly and air outlet component upper and lower parallel installation in the setting chamber, heating assembly connection pipeline end and air outlet component connection pipeline end homeward bound. The utility model has the beneficial effects that compared with prior art: high -efficient energy -conserving, temperature control accurate, heating is even, environmental protection clean, equipment life is long, equipment manufacturing cost is low.

This invention belongs to the field of environmental materials, specifically relating to a method for preparing and applying a composite pollutant treatment agent, comprising the following steps: Step 1, dissolving polyacrylonitrile in N,N-dimethylformamide, stirring thoroughly to obtain a spinning solution, and performing electrospinning to obtain an electrospun polyacrylonitrile film; Step 2, pre-oxidizing the electrospun polyacrylonitrile film in an air atmosphere to obtain a pre-oxidized polyacrylonitrile film; Step 3, carbonizing the pre-oxidized polyacrylonitrile film under nitrogen protection to obtain electrospun carbon fibers; Step 4, dissolving bismuth nitrate in ethylene glycol, and obtaining a bismuth nitrate / ethylene glycol solution by magnetic stirring; Step 5, purifying anhydrous ethanol by dehydration using a 3A molecular sieve; Step 6, mixing the bismuth nitrate / ethylene glycol solution obtained in Step 4 with the anhydrous ethanol obtained in Step 5, adding the electrospun carbon fibers obtained in Step 3, performing a hydrothermal reaction, and washing and drying the reaction product to obtain Bi2O supported on carbon fibers with both adsorption and degradation effects. 2.33 / Bi2O3 composite pollutant treatment agent. This composite pollutant treatment agent is used for the catalytic degradation and adsorption of organic pollutants in wastewater.