71results about How to "The realization of the production" patented technology

The invention provides a preparation method of L-aminopropanol, using L-alanine and H2 as main raw materials and carbon ruthenium as a catalyst to carry out direct catalytic hydrogenation to synthesize the L-aminopropanol. The method increases the selectivity of process reaction, accelerates reaction speed and shortens reaction step, thereby greatly reducing the production cost, increasing the L-aminopropanol yield, reducing the production of harmful wastes and realizing the greenization of the reaction process; and the aspects of energy saving and emission reduction of SOD and SO2 are obviously improved in order to realize less environment pollution. Any organic solvent is not added to the whole reaction process, thereby reducing the emission of pollutants, and protecting environment.

The invention discloses a method and system for recycling photovoltaic components. The method includes the following steps: removing the frame, the junction box and the glass panel on the photovoltaic module to obtain the preliminary material; cutting the preliminary material to obtain the preliminary material fragment; placing the preliminary material fragment in the Stripping is carried out in a peeling device equipped with a rotary hitting mechanism to obtain a mixture of EVA film fragments, backplane fragments, bus bar fragments, welding ribbon fragments and silicon powder; Board fragments, busbar fragments, and ribbon fragments. The method for dismantling and recycling backplanes, EVA, battery sheets and complete glass of the present invention has the advantages of high dismantling and recycling efficiency, low energy consumption, no environmental pollution, etc., greatly reduces resource waste and waste discharge, and reduces recycling cost, is an environmentally friendly resource recovery method.

The invention provides an annular optical fiber with an asymmetrical optical grating and application in orbital angular momentum generation thereof. A hollow core annular optical fiber can increase the effective refractive index between degeneracy-similar modes, thereby preventing crosstalk between the modes. A long period optical grating inscribed on the upper half ring of the hollow core annular optical fiber breaks a circular symmetry structure of the optical fiber and achieves conversion between angular non-same order modes. When input light is of a circular polarization fundamental mode, a first-order orbital angular momentum mode can be generated. The hollow core of the hollow core annular optical fiber is filled with an optical functional material with the refractive index adjustable and the wave length for generating the orbital angular momentum mode can be tuned by the refractive index of the liquid, so that the structure can generate the orbital angular momentum mode in an adjustable cross band wave length range. Simulation shows that when the optical grating period is 292 [mu]m and the optical grating length is 1.460cm, the range of broad band wave lengths with the angular momentum mode conversion rate higher than 90% can reach 237nm, the greatest conversion rate is 98.91%, and the modulation rate of the refractive index of the filling liquid for the wave lengths for orbital angular momentum mode generation is 400nm / RIU.

The invention discloses a method for preparing nano copper conductive ink, which can be applied in the field of printing electronic technology, in particular ink jet printing technology. The preparation method comprises the following steps of: dissolving copper salt and protective agent into a solvent, heating and stirring the solution, adding a small amount of alkali solution to adjust the pH of the solution to between 7 and 10, dripping a reducing agent into the solution, continuously stirring the solution to react for 30 to 60 minutes, and then cooling the reaction solution to room temperature to obtain nano copper dispersion; performing centrifuging, washing and vacuum drying at room temperature on the nano copper dispersion to obtain nano copper granules; and dispersing the nano copper granules into an organic solvent, and ultrasonically treating the solution to obtain the nano copper conductive ink. The method solves the problems of complex preparation process and long preparation period in the prior art, has the advantages of simple and convenient operation, low production cost, short flow and no harmful waste generation, and realizes the goals of environmental protection and economy; and the prepared nano copper conductive ink has good dispersion property and high stability.