33results about How to "Has large-scale industrial application" patented technology

The invention belongs to the field of super-amphiphobic materials, and discloses a stable and transparent super-hydrophobic or super-amphiphobic coating as well as a preparation method and the application thereof. The preparation method for the coating comprises the steps as follows: blending nanoparticles, epoxy resin with a solvent to obtain the epoxy resin hybridization solution; dissolving fluorine-containing substances and a catalyst into a solvent to obtain the fluorine-containing solution; spraying the epoxy resin hybridization solution on the surface of a substrate, drying the substrate for 0.5-5 h at the temperature of 80-130 DEG C, spraying the fluorine-containing solution on the surface of the substrate, drying the substrate for 0.5-5 h at the temperature of 80-130 DEG C after the solvent is volatilized, and finally washing the surface of the substrate by using the solvent, so as to obtain the stable and transparent super-hydrophobic or super-amphiphobic coating. The super-hydrophobic or super-amphiphobic coating can be applied to hydrophobic and oleophobic modification of surfaces of the vast majority of substrates.

The invention relates to a method for preparing oligochitosan through self-resonating cavitation. The method is characterized in that self-resonating cavitation degradation is adopted, that is, a chitosan solution is subjected to self-resonating cavitation degradation treatment in a self-resonating cavitation device; the self-resonating cavitation device comprises a thermostatic water-bath circulation water tank, a storage tank, a pump, a self-resonating cavitation device, a pipeline for conveying the chitosan solution, a pressure gauge and a valve; the technological process of self-resonating cavitation degradation is as follows: the chitosan solution is stored in the storage tank, subjected to thermostatic treatment by the circulation water tank and conveyed by the pump to the self-resonating cavitation device for cavitation degradation, the pressure of an inlet is adjusted by the valve, the pressure is monitored by the pressure gauge, and the chitosan solution subjected to cavitation degradation flows back to the storage tank. The degradation rate by using the method is at least 40% higher than that by using a hydrodynamic cavitation device (venturi tube) to prepare oligochitosan at present, and the method has the characteristics of simplicity, easiness, low energy consumption, high efficiency and the like and has the advantage of mass industrial application.

The invention discloses a method for preparing calcium carbide and a synthetic gas via a flameless oxidation heating method, and a calcium carbide reactor, and solves problems of influencing time and effect of calcium carbide reaction caused by uneven heat distribution of the calcium carbide and the synthetic gas prepared by a conventional method and non-uniform particle size of materials entering a reaction chamber. In the method, flameless combustion in the reaction chamber is realized by controlling oxygen content in a mixed gas passing into the reaction chamber; and problems of non-uniform particle size of materials in the reaction chamber is solved by designing feeding particle size at two feeding ports. The reactor enables heat distribution in the chamber to be more uniform through the improvement of oxygen burners of the reaction chamber and a vaporizing chamber. The method is simple in process, is safe and reliable, has more uniform heat distribution, high calcium carbide reaction efficiency and high calcium carbide purity, low loss to furnace walls, the content of the generated synthetic gas is over 7 times that a conventional electrothermal method, and at the same time, consumption rate of raw materials and fuels is low.