67results about How to "High degree of greening" patented technology

The invention relates to a preparation method of a slow-setting polycarboxylic acid water reducing agent, which is implemented by carrying out free radical copolymerization reaction on allylsulfonate monomers, acrylic monomers, polyethylene glycol nono-methyl ether methacrylate macromonomers and maleic anhydride grafted beta-cyclodextrin macromonomers. The invention is characterized in that a beta-cyclodextrin side chain is introduced into a polycarboxylic acid main chain, so that the polycarboxylate water reducing agent has favorable slow setting property, micro air-entraining property and better fluidity. The obtained polycarboxylic acid water reducing agent has the advantages of stable product performance, strong adaptability to cement and favorable compatibility; and the cement paste fluidity is up to higher than 290mm (W/C=0.29), the water reducing rate of concrete is up to 30-40%, and the slump protection time is 3-5 hours. The preparation method provided by the invention has the characteristics of unique technique, excellent product performance and the like.

The invention provides a cutter matching method for a machining process. A selective range of cutters to be matched is gradually decreased according to different characteristics of parts to be machined to obtain multiple cutters to be selected satisfying part processing requirements; and then, a final cutter is selected through calculating a carbon emission. The matching method is clear in steps and definite in levels, can reduce the cutter matching complexity, and can improve the reasoning efficiency and the accuracy of cutter matching. As the carbon emission in the machining process is introduced into a cutter matching scheme evaluation as a final selecting standard of the cutters to be matched, on the one hand, the finally matched cutter scheme is closer to actual production requirements to guarantee the matching result practicability, and on the other hand, the control of energy consumption of a workshop production system and the control of the carbon emission in the machining process are realized to a certain extent to improve the green degree of the whole system and to provide the reference for the realization of efficient cutter selection, energy conservation and emission reduction in the machining process.

A process for continuously generating methyl acetate by reactive distillation taking ionic liquid as a catalyst is as follows: raw materials are preheated, acetic acid is input from the upper segment of a reactive distillation tower, ionic liquid is input from the central segment of the tower and methanol is input from the lower segment of the tower simultaneously, the central segment of the reactive distillation tower is a reaction zone, the product of methyl acetate is extracted from the top of the tower, the catalyst of ionic liquid is extracted from the bottom of the tower and enters a flash drum for flash evaporation, the liquid extracted from the bottom of the flash drum is the catalyst of ionic liquid which returns to the reactive distillation tower, gas phase evaporated from the flash drum is mixed vapour of water and methanol, which is input to a methanol recovery tower, raw material of methanol is extracted from the top of the methanol recovery tower after being separated, and returns to the reactive distillation tower to be raw material, water is extracted from the bottom of the methanol recovery tower and is discharged. The process of the invention discharges no waste acid water, the material of devices of the required towers is only 316L stainless steel and can reduce the corrosion for the devices and one-time investment remarkably, energy consumption decreases by more than 15% simultaneously, therefore the production cost of final product reduces by more than 30%.

The invention discloses a data center liquid cooling system and relates to the technical field of data center heat dissipation devices. The system comprises a box body, a server, a cold plate, a cooling device, a liquid storage tank and a refrigerant pump. The box body is filled with a single-phase refrigerant, the server is immersed in the single-phase refrigerant, the server is connected to thebox body, the cold plate is arranged in the box body and is connected to the box body, and the cold plate is sequentially connected to the cooling device, the liquid storage tank and the refrigerant pump to form a circulation loop. The invention realizes the combination of indirect contact liquid cooling, single-phase direct immersion liquid cooling and natural cooling, so that the single-phase refrigerant does not need to be circulated under the driving of a pump but is circulated by the change of temperature and density, although the refrigerant is circulated under the driving of the refrigerant pump, the refrigerant has a smaller viscosity than that of the single-phase refrigerant and is easy to flow, the loss of the refrigerant pump is not increased, so the pump loss caused by the single-phase refrigerant is reduced, the PUE of a data center is lowered, and the greenness of the data center is improved.

The invention discloses a method for fractionation and extraction separation of mischmetal through three feeding openings. According to the method for fractionation and extraction separation of mischmetal through the three feeding openings, P507 is used as a rare extraction agent, primary amine N1923 is used as an acid extraction agent, and TOP is used as an organic phase modifier; the three feeding openings are arranged in a fractionation and extraction system, Gd/Tb grouped separation is conducted to treat three kinds of rare earth chloride feed liquid of lanthanum-neodymium-rich ore, yttrium-intermediate europium-rich ore and high-yttrium ore at the same time, and then a light and middle rare earth product and a heavy rare earth product are obtained; the lanthanum-neodymium-rich ore feed liquid enters the fractionation and extraction system from the first feeding opening; the yttrium-intermediate europium-rich ore feed liquid enters the fractionation and extraction system from the second feeding opening; and the high-yttrium ore feed liquid enters the fractionation and extraction system from the third opening. The light and middle rare earth product with the purity being 5N is obtained from the water phase of an outlet of a first-level extraction tank of the fractionation and extraction system; and the heavy rare earth product with the purity being 5N is obtained from the extraction raffinate water phase of an acid extraction section. Compared with an existing traditional fractionation and extraction technology, the consumption amount of organic-phase saponification alkaline is lowered by 39%-52%, the consumption amount of pickling acid is lowered by 66%-80%, and the total number of levels of extraction tanks is reduced by 30%-60%.

The invention discloses a method for two-in and three-out fractional extraction and group separation of europium-rich middle yttrium ore. Two rare-earth feed liquid feeding holes and three rare-earth product solution outlets are formed in a fractional extraction system; chlorinated rare-earth feed liquid of the europium-rich middle yttrium ore is divided into two parts, and is fed to the fractional extraction system from different feeding holes; a third outlet is formed in a water phase of an extraction eluting section, so as to obtain three products; P507 is used as an extracting agent; light rare-earth elements 'La-Nd' products, heavy rare-earth elements 'Ho-Lu+Y' products and medium rare-earth 'Sm-Dy' enriched products are obtained by adopting the method for two-in and three-out fractional extraction and group separation of europium-rich middle yttrium ore Nd/Sm-Dy/Ho. Compared with an existing process for group separation of Nd/Sm-Dy/Ho at three water outlets in the water phase of the P507 extraction eluting section, the method has the advantages that the saponification alkali consumption is reduced by 28%-36%; the acid consumption of the washing acid is reduced by 34%-42%; the separation cost is low; and the green degree is high.

The invention relates to a preparation method of a permeable reinforced raw silk processing agent. Processing agents sold in the present market generally have the disadvantages of small raw silk breaking strength, bad cohesion, bad fabric breathability, difficult wastewater processing the like. The preparation method of the invention comprises the following steps: adding graphite powder, sodium nitrate and concentrated sulfuric acid to potassium permanganate in an ice bath environment; reacting above substances in a 35DEG C water bath, heating, washing, applying ultrasonic processing, carrying out centrifugal filtration and vacuum drying, carrying out ultrasonic processing on the resulting substance with N,N-dimethyl formamide, ethylene diamine and dicyclohexylcarbodiimide, adding waterless ethanol, allowing the resulting solution to stand overnight, and carrying out vacuum drying to obtain amino modified graphene oxide; and stir-reacting the amino modified graphene oxide, oxidized polyethlene wax, lanolin, oxidized rapeseed oil, oxidized lard, an emulsifier OS-15h and an emulsifier 1631 to obtain the permeable reinforced raw silk processing agent. The strength, the surface lustereffect, the smooth and soft performances, the antistatic performance, the flame retardation and the like of raw silk processed with the permeable reinforced raw silk processing agent of the inventionare greatly improved.

The embodiment of the invention discloses a prediction method and device for energy use efficiency, a storage medium and terminal equipment, which are applied to the technical field of information processing of artificial intelligence. The prediction device for the energy utilization efficiency can obtain environment variable parameters of the modular data center at N moments in a preset time period, and utilizes a feature extraction module in the efficiency prediction model to extract feature information of the environment variable parameters at N moments, associates the feature information at the N moments to obtain comprehensive feature information, and a prediction module in the efficiency prediction model outputs the future energy use efficiency of the modular data center according tothe comprehensive feature information. The efficiency prediction model is a machine learning model, the machine learning model can be combined with environmental variable parameters collected for multiple times in a period of time to obtain future energy use efficiency, the future energy use efficiency can be accurately predicted, and operation and maintenance personnel can be well guided to create a modular data center with a high degree of greenization.

The invention discloses a manual pressing device based on worms, worm wheels and crank connecting rod transmissions. The manual pressing device comprises a rotary shaft, wherein at least two worms are fixedly arranged on the rotary shaft, the worm wheels meshed with the worms are arranged under the corresponding worms, the crank connecting rod transmissions are arranged on the worm wheels, and the tail ends of the crank connecting rod transmissions are connected to the same press block. The symmetrical synchronous multi-point driving is achieved, the manual pressing device is compact in structure, simple and convenient to use and rapid in positioning and pressing, the synchronous multi-point or multi-station pressing can be achieved according to the demands of workpieces, and accordingly labor productivity and product quality are improved.

The invention discloses a fractional extraction method for separating mixed rear earth utilizing three feeding ports. P507 is adopted as a rear earth extraction agent, primary amine N1923 is adopted as an extraction acid agent, and TBP is adopted as an organic phase modifier agent; the three feeding ports are formed in a fractional extraction system, three types of rare earth chloride liquid such as light rare earth ore, middle yttrium europium rich ore, and high yttrium ore are subjected to -Gd/Tb- group separating simultaneously, and two types of rear earth products such as light middle rear earth and heavy rear earth are obtained; the light rear earth ore liquid enters the fractional extraction system from the first feeding port, the middle yttrium europium rich ore liquid enters the fractional extraction system from the second feeding port, and the high yttrium ore liquid enters the fractional extraction system from the third feeding port; and light middle rear earth products with purity of 5N class are obtained from water phase of a first stage extraction trough exit of the fractional extraction system, and heavy rear earth products with 5N class are obtained from waste extraction water phase of an extraction section. According to the extraction method for group separating three types of rare earth raw materials, and compared with a traditional fractional extraction art, consumption of washing acid is reduced by 75%-83%, consumption of organic phase saponification alkali is reduced by 49%-67%, and the number of the whole stages of the extraction troughs is reduced by 30-60%.

The invention discloses an extraction and separation technology for fractional extraction co-production of pure europium and pure erbium. According to the extraction and separation technology, C272 serves as an extraction agent, an europium-rich chloride solution serves as a first feed liquid, and an erbium-rich chloride solution serves as a second feed liquid. The extraction and separation technology comprises the six steps of fractional extraction separation of PrNdSmEu and EuGdTbDy, fractional extraction separation of GdTbDyHoYEr/ErTmYbLu, full-loaded fractional extraction separation of PrNdSm/Eu, full-loaded fractional extraction separation of Eu/GdTbDy, full-loaded fractional extraction separation of GdTbDyHoY/Er and fractional extraction separation of Er/TmYbLu. Two high-purity products of 4N-grade europium chloride and 4N-grade erbium chloride are simultaneously obtained through one extraction and separation technology. Through the extraction and separation technology, the consumption of acid and alkali for preparing the 4N-grade europium chloride and the 4N-grade erbium chloride can be lowered, and the product percent of pass of the 4N-grade europium chloride and the 4N-grade erbium chloride can be improved.

The invention discloses an application of a novel isovanillin epoxy resin monomer in preparation of a silicon-containing polymer, which comprises the following steps: mixing an isovanillin bio-based epoxy resin monomer as shown in a formula Meng-yangIE with an organic silicon polyamine curing agent as shown in a formula D, a formula E or a formula F, melting, and curing to obtain the novel isovanillin epoxy resin monomer. The silicon-containing polymer containing the isovanillin bio-based epoxy resin monomer as shown in the formula Meng-yangIE is obtained. According to the method, the bio-based isovanillin is used as the raw material for preparing the corresponding epoxy resin monomer material for the first time, the synthesis steps of the resin monomer are simple, the conversion rate of the reaction process is high, the source is wide, the greenization degree is high, and the biological safety of the product is high. In addition, the bio-based epoxy resin obtained through polymerization of the isovanillin epoxy resin monomer is novel in structure, and the obtained bio-based epoxy resin polymer material has low curing processing technology temperature and good heat resistance (the initial decomposition temperature ranges from 300.8 DEG C to 300.8 DEG C).

The invention provides a KBH ₄ with Et ₃ N·BH ₃ The product after thermal reaction in an aprotic medium can be directly prepared into pure K by solvent treatment without any chemical transformation. ₂ B ₁₂ h ₁₂ Methods. This preparation method avoids the use of highly toxic B ₂ h ₆ , B ₅ h ₉ or B ₁₀ h ₁₄ or its derivatives, to avoid the separation step of converting the reaction product into insoluble salts such as triethylamine salt, tetraalkylammonium salt or chitin salt or cesium salt, without passing H ⁺ Ion-column exchange, eliminating the need for KOH or K ₂ CO ₃ Neutralization step. The method involves few chemical species, simple procedure, routine operation, and convenient handling, and is the ideal method for preparing K ₂ B ₁₂ h ₁₂ A method with a higher degree of greening.

A dipyrromethene compound green synthetic method, especially a synthetic method for pyrrolo Beta-position non-substituted dipyrromethane using pyrrole and aromatic aldehydes and ketones, includes using water as solvent, using pyrrole and aromatic aldehydes and ketones as raw material and phosphotungstic acid as catalyst, and synthesizing dipyrromethane at room temperature in one-step. The dipyrromethane has yield of 44%-95% and purity greater than 99%, and the inventive method avoids the use of organic solvent of greater toxicity and the yield increased by 14%-28%, and it significantly reduces the cost and is batch synthesis process.