4results about How to "Simple and safe process" patented technology

The present application relates to a kind of micro CO efficient removal adsorbent and its preparation and application, the preparation method includes the following steps: (1) active carbon powder, active component A, inorganic clay and dispersing agent are placed in ball mill and are uniformly ground, and mixture material is obtained;(2) active component B and the water solution of reducing agent are atomized and sprayed into the mixture material, then glue is added, and wet material is obtained;(3) wet material is extruded into shape by template, after heat reduction, after drying, calcination, CO removal adsorbent is obtained, i.e. target product;Active component A is monovalent copper salt, and active component B is the mixture of lanthanum chloride and at least one of cerium chloride or yttrium chloride.The strength and adsorption capacity of the CO removal adsorbent of the present application are increased by more than 30% and 25% respectively, the strength is ≥40N / cm, the wear is ≤1.5wt%, the CO adsorption capacity is ≥35ml / g (40℃), the removal precision can reach below 0.01ppm, suitable for the efficient purification of trace CO in hydrogen, nitrogen and other raw gas.

The utility model discloses a uniform material's flotation machine feed ear box, including ore pulp delivery pipe, mixed buffer tank, mixed discharge pipe and feed ear box, a plurality of ore pulp delivery pipes are connected with the top of mixed buffer tank, and the front end center position is connected with mixed discharge pipe, and the export of mixed discharge pipe is connected feed ear box, the both sides of feed ear box bottom are installed with flotation machine feed pipe, and the inboard of feed ear box bottom feed pipe is installed with two distribution baffle and distribution gate, and the height of different distribution gate is adjusted, and the ore pulp quantity of different feed pipe of feed ear box bottom is controlled. Solve the double row flotation machine ore pulp feeding of prior art and cannot evenly distribute, cause the problem of low running efficiency of flotation machine, and the fluctuation of flotation froth layer thickness is big.

The present invention relates to a wind turbine blade having a serrated trailing edge. Flow-guided vanes are arranged on the serrations to prevent lateral flow over the edges of the serrations, which are preferably positioned incidentally to the flow over the wind turbine blade. The vanes can be formed as a single unit with the serrations or attached to existing serrations as a retrofit solution. The serrations with the vanes can be supplied as a trailing edge panel for attachment to the trailing edge of an existing wind turbine blade.<!--endfragment-->

The invention discloses a photochemical synthesis method of a vonoprazan intermediate, and belongs to the technical field of drug intermediate synthesis, the synthesis method comprises the following steps: (1) 2-bromo-1-(2-fluorophenyl) ethyl-1-ketone and acetaldehyde are subjected to a white light irradiation reaction under the action of a photosensitizer and alkali to obtain 4-(2-fluorophenyl)-4-oxobutyraldehyde; (2) carrying out a Paal-Knorr condensation reaction on the 4-(2-fluorophenyl)-4-oxobutyraldehyde and ammonium acetate under the action of an acid catalyst and a dehydrating agent, so as to obtain 2-(2-fluorophenyl)-1H-pyrrole; (3) carrying out formylation reaction on the 2-(2-fluorophenyl)-1H-pyrrole and 1, 1-dichloromethoxymethane under the action of a Lewis acid catalyst, so as to obtain a vonoprazan intermediate; the method has the advantages of cheap and easily available raw materials, high product yield, safe and simple process, mild reaction conditions and low cost, and is suitable for industrial production.