12results about How to "Friendly" patented technology

This invention discloses an artificial aggregate prepared using desulfurization solid waste, its preparation method, and its application, belonging to the field of solid waste resource utilization technology. The preparation method includes the following steps: ball milling desulfurization slag to obtain desulfurization slag powder; low-temperature pyrolysis treatment of waste incineration fly ash to obtain pretreated waste incineration fly ash; mixing desulfurization ash, desulfurization slag powder, and pretreated waste incineration fly ash to obtain a raw material mixture; adding water to the raw material mixture and pelletizing to obtain aggregate particles; subjecting the aggregate particles to air curing and mineralization curing sequentially to obtain the final product. This invention also discloses the artificial aggregate prepared by the above method and its application. The artificial aggregate prepared using desulfurization solid waste of this invention has high compressive strength and stable ion storage, which can solve the problems of low strength and high dependence on admixtures in existing coal ash-based aggregates, and has broad application prospects.

This invention discloses hollow silver-platinum nanoalloy particles, their preparation method, and applications. The silver-platinum nanoalloy particles have a particle size of 30-60 nm, an overall hollow structure, and a porous surface distribution of silver and platinum fused together. The preparation method includes: using epigallocatechin gallate as the sole reducing agent and stabilizer, reducing silver nitrate in ethylene glycol to prepare monodisperse silver nanoparticles; then, at 60-80°C, slowly adding chloroplatinic acid solution in batches to the silver nanoparticle solution to carry out an in-situ exchange reaction; after the reaction, washing and separation yields the final product. This invention provides a green, simple, mild, and highly controllable preparation method. The prepared silver-platinum nanoalloy particles simultaneously possess excellent nanozyme catalytic activity and high-sensitivity surface-enhanced Raman scattering performance, achieving integrated synergistic catalytic and detection functions. It has broad application prospects in food safety testing, environmental monitoring, and biosensing.

This invention provides a method and equipment for recovering lithium, fluorine, and aluminum from lithium-rich waste aluminum electrolyte, relating to the field of metal material recycling. The method for recovering lithium, fluorine, and aluminum from lithium-rich waste aluminum electrolyte includes the following steps: S1, the waste aluminum electrolyte is crushed, ground, sieved, and then dried for later use. The method provided by this invention utilizes ultrasonic-assisted leaching of lithium-containing waste aluminum electrolyte with organic acid (malonic acid). Compared with traditional inorganic acid leaching, organic acid has advantages such as good biodegradability, weak acidity, low corrosiveness, recyclability, and environmental friendliness. During neutralization, cryolite byproducts are obtained, which can be returned to the aluminum electrolysis cell for reuse, realizing the recycling of fluorine and aluminum. Finally, high-purity lithium phosphate is obtained through precipitation, effectively utilizing the lithium resources in the waste aluminum electrolyte.

This invention relates to the field of metal recycling technology and discloses a method for recycling titanium scrap, comprising: a mechanical pretreatment stage for crushing and primary magnetic separation of titanium scrap; a cleaning and rinsing stage employing a four-step cleaning process combining ultrasonic waves and spraying with a synergistic chelating agent-biosurfactant-buffer system; water softening pretreatment for hard water environments using a sacrificial-functional double-layer chelating system and a ternary buffer system; a dehydration and drying stage for removing moisture; and a sorting and purification stage using multi-stage magnetic separation and various physical sorting methods to obtain high-purity titanium scrap products. This invention achieves the simultaneous execution of three functions: chelating agent complexation of metal ions, surfactant emulsification of oil contamination, and buffer stabilization of the reaction environment. The cleaning efficiency is 3-5 times higher than that of a single cleaning method, solving the problems of competitive consumption of chelating agents and poor cleaning process stability in hard water environments, thus realizing high-quality recycling of titanium scrap.

According to the aerosol generating product capable of being rapidly degraded and the preparation method of the aerosol generating product, a biodegradable fuming section, a biodegradable supporting section, a biodegradable cooling section and a biodegradable filtering section are formed by designing and matching specific biodegradable materials for four functional sections of the aerosol generating product respectively; the whole section of the aerosol generating product is completely biodegradable; the whole aerosol generating product can be effectively decomposed by microorganisms under the natural environment or industrial compost condition after being used, and is finally converted into carbon dioxide, water and biomass, so that the problem of persistent plastic pollution caused by cigarette waste is completely eradicated from the source, and the minimum influence of the whole life cycle of the product on the environment is realized; the global trend of circular economy and sustainable development is positively responded.

The application discloses a method for recycling fluorine and lithium elements in aluminum electrolysis refractory materials based on a sustainable water immersion method to prepare cryolite and co-produce lithium phosphate, and belongs to the technical field of solid waste resource utilization in aluminum electrolysis industry. The method is characterized in that soluble fluoride, cyanide and lithium elements are efficiently extracted through an optimized water immersion process, the leaching solution is directionally synthesized into high-value cryolite and lithium is recovered after treatment, and the leaching residue is used to prepare gel materials with good performance, so that full-component, high-value-added and harmless utilization of waste refractory materials is realized, the pain points of high water consumption and resource waste in the prior art are solved, the problem of secondary pollution is completely solved, and both environmental benefits and economic benefits are taken into account.

The application provides offshore floating carbon dioxide storage and methanol preparation equipment and a use method thereof, wherein a CO2 seabed storage and methanol preparation unit comprises a liquid CO2 receiving unit, a liquid CO2 storage unit, a CO2 feeding unit, a CO2 metering unit, a CO2 injection unit, a CO2 heating unit, a supercritical CO2 injection manifold unit, a hydrogen receiving and storage unit, a gas compression unit, a methanol synthesis unit, a methanol rectification and liquefaction unit, a liquid methanol storage unit, a nitrogen production unit and a liquid methanol delivery unit. The application not only realizes stable storage of supercritical CO2 in seabed abandoned oil fields, but also makes full use of "green hydrogen" produced by "abandoned wind and electricity" of offshore wind farms, realizes resource recycling of CO2 hydrogenation to prepare methanol, especially can be operated in abandoned oil and gas fields in different sea areas, has strong friendliness, flexibility and repeatability, and provides an effective application scheme for CO2 storage and recycling.

This application belongs to the field of electrical technology, specifically relating to a control method, device, equipment, and storage medium for a clothing processing device. The method includes: detecting a tapping signal in a preset area of ​​the clothing processing device after detecting that clothing has been placed in the device; determining that the tapping action is valid when N consecutive tapping signals are detected; wherein N is an integer greater than or equal to 2; locking the clothing processing device and running the clothing processing program; reducing the probability of false triggering of the clothing processing device, improving the accuracy of tapping recognition and clothing processing program triggering, and achieving quick startup of the clothing processing program while ensuring the safety of the clothing processing device's operation, thus improving the user experience.

The invention discloses a method for preparing crystalline phase aluminum phosphate at low temperature through evaporation-induced self-assembly and catalytic application of the crystalline phase aluminum phosphate, and relates to the technical field of catalyst preparation. The method comprises the following steps: adding a nitric acid aqueous solution and alkoxy aluminum into absolute ethyl alcohol, stirring and dissolving, then adding a phosphoric acid aqueous solution, and then carrying out pre-reaction to obtain a mixture; heating the mixture to evaporate the solvent to obtain a solid product; and calcining the solid product to obtain the crystalline phase aluminum phosphate, the molar ratio of the phosphorus element contained in the phosphoric acid aqueous solution to the aluminum element contained in the alkoxy aluminum is 1.5: 1; the calcining temperature is 550 DEG C. The crystalline phase aluminum phosphate catalyst prepared by the method provided by the invention has high reaction activity and product selectivity for catalyzing the reaction of formaldehyde and ethylene glycol acetal to synthesize 1, 3-dioxolame, and few by-products are produced.

This invention discloses a DNTF@Ni3(HHTP)2 composite energetic material with electrostatic dissipation characteristics and its preparation method, comprising: dispersing DNTF in water and stirring to obtain a DNTF dispersion; adding a nickel acetate tetrahydrate solution to the DNTF dispersion and stirring to obtain a mixed solution system; adding an aqueous dispersion of HHTP organic ligands to the mixed solution system and stirring to obtain a mixed solution system; after the reaction, performing solid-liquid separation, washing, and drying to obtain the DNTF@Ni3(HHTP)2 composite energetic material with electrostatic dissipation characteristics. This invention utilizes Ni3(HHTP)2 material with high conductivity and, through process control, forms a conductor with rod-like structure on the surface of DNTF, forming an effective conductive path. The volume resistivity of the composite energetic material reaches the electrostatic dissipation range, effectively promoting the dissipation of accumulated static electricity and improving the electrostatic safety of the powder energetic material.

The application discloses a pulse neural network image recognition method, system, device and storage medium, which is applied to the technical field of image recognition and has the method comprising the following steps: encoding image pixel values into pulse sequence and inputting the pulse sequence into a pulse neural network; updating the input synapse weight of a hidden layer neuron according to the mutual information between the input pulse and the output pulse of the hidden layer neuron; updating the input synapse weight of an output layer neuron according to the difference between the pulse response of the output layer neuron and a preset task target; transmitting the original pulse of the output layer neuron to the hidden layer neuron through a feedback synapse connection; iteratively training the pulse neural network until a preset convergence condition is met; and constructing a multi-layer pulse neural network architecture, wherein each neuron of the hidden layer independently updates the weight according to the mutual information gradient, and through the constraint modulation mechanism of the interlayer feedback signal, the network as a whole can emerge coordinated learning behaviors facing the classification target.