8results about How to "Sufficient raw materials" patented technology

The invention provides application of dihydroquercetin as a wheat seed initiator and an initiation method, and belongs to the technical field of crop cultivation. The initiation method provided by the invention comprises the following steps: preparing 0.1-1.0 mmol.L <-1 > of a dihydroquercetin solution initiator, and mixing seeds and the initiator according to a ratio of 1g: (0.5-1.5) mL for initiation. Dihydroquercetin can effectively prevent and control absorption and accumulation of heavy metal cadmium by wheat and reduce the content of the heavy metal cadmium in grains, so that the content of the cadmium in the grains meets the standard (GB 2762-2022, the grain Cd limit value is 0.1 mg.kg <-1 >) of National Food Safety Standard Limit of Pollutants in Pollutants in Food.

The invention discloses a soil conditioner and a preparation method thereof, relates to a conditioner and a preparation method thereof, and solves the problems of soil pollution and soil acidification. The soil conditioner is composed of dolomite and urea. The preparation method comprises the following steps: (1) weighing dolomite and urea; (2) respectively grinding dolomite and urea, and uniformly mixing; and (3) roasting in a muffle furnace, grinding, and passing through a hole sieve. The low-cost raw materials dolomite and urea are combined according to a specific proportion, the preparation method is simple, the acidification condition of soil can be improved, the pH value of the soil can be increased, the permeability of the soil can be increased, the physicochemical properties of the soil can be improved, and wide application prospects are achieved.

The present application relates to the technical field of aviation gasoline, and discloses unleaded aviation gasoline and a preparation method thereof.The unleaded aviation gasoline comprises: 75-85 wt% of polymethylbenzene, and 15-25 wt% of at least two of alkylate, a side line distillation component of an alkylate device, light naphtha and isopentane; wherein the motor octane number of the polymethylbenzene is not less than 108.The product quality index of the unleaded aviation gasoline meets the standard of the American Society for Testing and Materials, that is, the technical requirement of ASTM D7719-2018 high-aromatic unleaded aviation gasoline.The unleaded aviation gasoline has the characteristics of good component continuity, stable combustion and high motor octane number, and meets the high-standard use requirement of unleaded and high-octane aviation gasoline.

The invention relates to a synthetic method of a silicon dioxide crystal with high birefringence. The synthetic method comprises the following steps: assembling a sample by adopting a large-cavity press; placing a LaCrO3 furnace at the central part of the magnesium oxide octahedron, loading the sample powder, compacting, and then welding and sealing; putting the assembly into a Kawai type large-cavity pressing machine to synthesize the stillage with high water content; slowly reducing the pressure of the sample to normal pressure, and taking out for testing. Silica commonly used in the industry is used as a raw material, high temperature and high pressure are used as a synthesis means, doping of potential pollutants such as heavy metals and organic solvents is not needed in the synthesis process, and the method is environmentally friendly; the synthesized stillage has birefringence which is 5 times of that of quartz, and the performance is better than that of commercial magnesium difluoride; according to the method, the birefringence of silicon dioxide quartz can be greatly improved, and the method also has the advantages of sufficient raw materials, no pollution in synthesis and the like while the obtained new silicon dioxide structure has excellent optical performance.

The invention discloses heat-resistant glucose dehydrogenase and application thereof in an enzyme fuel cell, and belongs to the crossing field of bioelectrochemistry and new energy technologies. According to the invention, firstly, a heat-resistant glucose dehydrogenase TeGDH is screened, and the heat-resistant glucose dehydrogenase TeGDH is subjected to heterologous expression in escherichia coli BL21 (DE3) and shows good heat stability and catalytic activity; teGDH is dissolved in an anolyte containing an electron mediator anthraquinone-2, 6-disulfonic acid disodium salt, and the heat-resistant high-energy enzyme fuel cell is prepared by adopting a non-immobilized system; the maximum power density of the battery at 50 DEG C reaches 1.74 mW / cm, and the battery has good thermal stability and long-term operation performance; the invention combines big data mining, enzyme engineering and electrochemical technologies, provides a novel enzyme fuel cell solution with high activity, high stability and low cost, and has a good application prospect.

The invention relates to the technical field of phenolic pollutant treatment, in particular to a method for preparing a Fenton-like catalyst from chestnut shells and application of the Fenton-like catalyst to water purification. The catalyst is used for constructing a heterogeneous Fenton-like catalytic system to activate the peroxymonosulfate, so that efficient catalytic degradation of typical phenol pollutants in a water body is realized. According to the method, environmental Fenton-like catalytic efficiency is used as functional guidance, and the microstructure, pore structure and surface property of the pyrolytic carbon material are directionally regulated and controlled by a two-step alkali activation technical means, so that the degradation efficiency of typical environmental pollutants is remarkably improved, and high-added-value resource recycling of chestnut shell agricultural solid wastes is realized; the environment-friendly and economic double benefits of treating wastes with wastes are achieved.

The invention discloses a photo-anode based on acid etching surface reconstruction and a preparation method thereof, and relates to the technical field of photoelectrochemistry. The preparation method comprises the following steps: S1, preparing a prismatic transition metal sulfide nanorod array on a cleaned conductive substrate to obtain a conductive substrate loaded with the prismatic transition metal sulfide nanorod array; and S2, acid etching is carried out on the conductive substrate loaded with the prismatic transition metal sulfide nanorod array in the step S1, the prismatic transition metal sulfide nanorod array is reconstructed into a cylindrical transition metal sulfide nanorod array, and the photo-anode based on acid etching surface reconstruction is obtained. After the prepared photoanode is subjected to acid etching surface reconstruction, the surface catalytic performance is obviously improved, the photocurrent density of an optimized sample under the bias voltage of 1.23 VRHE can reach 2.57 mA / cm < 2 > and is 2.89 times that of an original sample, and the photoanode has high photoelectrochemical performance.

The utility model provides a multi-pump glue supply machine. The multi-pump glue supply machine comprises a base plate, two tank bodies are arranged on the base plate, automatic material supplementing mechanisms are arranged in the tank bodies, and each automatic material supplementing mechanism comprises an isolation box, a floating ball, a U-shaped transmission rod, a fixing box, a magnetic block, a magnetic control switch, a feeding pipe and a first valve. The floating ball is arranged in the isolation box, the U-shaped transmission rod is installed on the top of the tank body in a sliding mode, and one end of the U-shaped transmission rod extends into the isolation box and is connected with the top of the isolation box in a sliding mode. The multi-pump glue supply machine provided by the utility model has the advantages that the automatic material supplementing mechanism is arranged to ensure that raw materials are sufficient, the temperature control mechanism and the annular weighing device are arranged to ensure that the device can monitor the temperature of glue in the tank body and accurately discharge the glue, and the mixing mechanism and the staggered extrusion mechanism are arranged to ensure that the glue is stably output.