30results about How to "Realize large-scale production applications" patented technology

The invention belongs to the technical field of building materials, and specifically relates to a low-shrinkage, low-viscosity ultra-high-strength concrete. The concrete is calculated according to the dosage of a single formula, and the ingredients and dosage are as follows: 250-300kg of cement, 120-180kg of microbeads, and 90-100kg of mineral powder. 120kg, machine-made sand 820-860kg; crushed stone 950-1000kg, water reducing agent 7-11kg; water 115-125kg, stirring for 1.5-2min to obtain a concrete mixture. The concrete cementitious material of the present invention uses less, the total shrinkage rate is low (0.3-0.4‰), the emptying time of the inverted slump cylinder is 5-10s, and the viscosity of the mortar with the same proportion is 20-28Pa·s, 28d The compressive strength is 110MPa~130MPa, and the 56d compressive strength is 120MPa‑135MPa. The concrete has the characteristics of low amount of cementitious material, short mixing time, good work performance and low comprehensive cost, can realize large-scale production, and has broad application prospects.

A type of air filter paper and a preparation method therefor. The preparation method includes the following steps of: (1) preparing a piece of bottom-layer paper; (2) preparing a dispersion mixed solution of a carbon nanomaterial; and (3) arranging the bottom-layer paper on the former, and conveying the dispersion mixed solution of a carbon nanomaterial onto the former, wherein the dispersion mixed solution of a carbon nanomaterial is filtered and formed on the bottom-layer paper, and then carrying out sizing and drying to obtain the air filter paper.

The invention discloses a tin disulfide-black phosphorus composite material, a preparation method and an application thereof, belonging to the field of material preparation. A preparation method of tin disulfide-black phosphorus composite material, comprising the following steps: 1) dispersing black phosphorus nanosheets in absolute ethanol, and adding tin tetrachloride pentahydrate and cysteine ​​successively to obtain a precursor solution; 2) After the precursor is transferred to a polytetrafluoroethylene reactor, a solvothermal reaction is carried out, and the obtained reaction product is centrifugally cleaned and dried to obtain a tin disulfide-black phosphorus composite material. The tin disulfide-black phosphorus composite material prepared by the preparation method of the invention has uniform appearance and stable performance. Invented tin disulfide-black phosphorus composite material as a gas-sensing material in NO 2 Application in gas sensor, able to detect ppb level NO at room temperature 2 With obvious and fast response and good selectivity, it has great application prospects in the field of gas sensing.

The invention discloses an epoxy resin-organic bentonite-metal oxide composite material, which consists of organic bentonite, ZnO-ZrO 2 Nanoparticles formed by mixing two metal oxides are dispersed and compounded in epoxy resin matrix materials. The preparation method is that organic bentonite and ZnO-ZrO2 nanoparticle materials are uniformly dispersed in epoxy resin liquid by mechanical mixing. After a series of stirring, adding and processing, a new type of epoxy resin-organic bentonite-ZnO-ZrO is finally obtained 2 metal oxide composites. No leveling agent and defoamer are used in the preparation process, thus further reducing the cost of material preparation. The anti-corrosion coating material of the present invention has good corrosion resistance, and can be used as structural steel or steel bars in marine engineering buildings and relatively special industrial production conditions. The preparation method is simple and does not require special equipment, and large-scale production and application can be realized.

The invention discloses a preparation method of an oil-soluble high-efficiency electric desalination demulsifier for ultra-heavy oil refining. The preparation method comprises the following steps: synthesizing phenolamine resin, and successively condensing the phenolamine resin with propylene oxide and ethylene oxide Reaction to obtain block polyether, then use phenol, hydrochloric acid and formaldehyde to synthesize thermoplastic phenolic resin, and finally carry out phenolic resin graft modification reaction on the obtained thermoplastic phenolic resin and block polyether to obtain ultra-heavy oil refining oil-soluble high-efficiency electric desalination Demulsifier products. The preparation method of the present invention can efficiently prepare an oil-soluble high-efficiency electric desalination demulsifier, reduce production costs, and improve the utilization rate of raw materials. The demulsifier produced by the method can greatly increase the desalination and dehydration speed of super heavy oil, save limited time, and can effectively Make up for the shortcomings of the processing device in the processing of super-heavy oil.

The invention relates to a carbon quantum dot / titanium dioxide composite photocatalytic material and a preparation method and application thereof. The carbon quantum dot / titanium dioxide composite photocatalytic material includes titanium dioxide and carbon quantum dots growing in situ on the surface of the titanium dioxide. The mass ratio of the carbon quantum dots to the titanium dioxide is (0.005-0.5):1 or preferably (0.005-0.2):1. Compared with existing carbon quantum dot / titanium dioxide composite photocatalytic materials, the carbon quantum dots and the titanium dioxide in the carbon quantum dot / titanium dioxide composite photocatalytic material with the carbon quantum dots growing in situ are bonded by Ti-O-C bonds, the carbon quantum dots are not easily detached from the surface ofthe titanium dioxide, and a carbon quantum dot / titanium dioxide two-phase heterogeneous structure with more stable structural and chemical properties is formed.

The invention discloses a method for extracting and separating valuable metals from high leaching slag produced by wet zinc smelting, which is characterized in that it comprises two steps: (1) decomposing and enriching high leaching slag; (2) floating Among them, (1) Decomposition and enrichment of high leaching slag: Under strong alkaline conditions, the valuable metal elements released after decomposition of jarosite and silicate in high leaching slag are converted into easy flotation forms (2) flotation: the silver, iron and lead in the high leaching slag after the step (1) decomposition-transformation are passed through flotation technology to select silver concentrate, iron concentrate and lead concentrate respectively . The advantages of the present invention are: 1. The precious metal silver and the valuable metals lead and iron are effectively separated and enriched; 2. Solve a series of environmental impact problems caused by slag stacking treatment; 3. Extend the industrial chain and improve the The level of comprehensive utilization of resources; 4. The process of the present invention has strong practical operability and can realize large-scale production and application.

The invention discloses a method for breeding aphidius gifuensis within a short cycle. The method comprises the steps of: host plant cultivation, pest species breeding, and aphidius gifuensis large-scale breeding. A breeding cycle of the whole process is 29-40 days. Each dish of brassica chinensis can breed more than 12000 of aphidius gifuensis, a parasitism rate of the aphidius gifuensis is 95%, a formation rate of stiff aphids is 60%, and stiff aphids of the aphidius gifuensis in each dish can be used for controlling 10-15 mu of aphid-damaged farmland. Brassica chinensis of a vegetable variety is adopted as a host plant with high strong adaptability and fast growth; and the brassica chinensis a host plant variety with a shortest cultivation cycle in current breeding technology of sphidius gifuensis, thereby reducing a breeding cycle of the aphidius gifuensis, and improving breeding efficiency of the aphidius gifuensis. The method adopts a flotation breeding method for cultivating the host plant, is simple in process step and solves the problems such as high breeding energy consumption, a tedious technical process, poor activity of the aphidius gifuensis, and irregular formation of the stiff aphids of the aphidius gifuensis, and can increases a utilization rate of the aphidius gifuensis for wide application in agriculture and forestry industry, thereby enabling the aphidius gifuensis to have better feasibility of production, promotion, and application.