62results about How to "Bring pollution" patented technology

A high-activity catalyst for both esterification and polycondensation contains anti-hydrolytic high-activity glycol titanium, the acetate, carbonate or oxalate of (1-4)-valence metal ions, and at least one of alkoxyl compound, organic acid and phosphorous compound. Its advantages are high activity, short reaction period, and no environmental pollution. Its resultant polyester has high photochemical performance and whiteness.

The invention discloses a production method of electronic-grade sulphuric acid. The production method comprises the following steps in sequence: industrial-grade sulfur trioxide raw materials are provided and placed into a raw material storage tank; the sulfur trioxide raw materials are conveyed into an evaporator tank; the evaporator tank is heated; sulfur trioxide steam generated by heating enters into an absorption tower through a filter; the sulfur trioxide steam is absorbed by electronic-grade ultrapure water in the absorption tower, the concentration of absorption liquid is controlled, and the absorbed solution enters into a degassing tower after cooled by a cooler; air stripping is performed on a sulfuric acid solution by the degassing tower through compressed air; the sulfuric acid solution enters into a finished product storage tank after cooled; finally, the final electronic-grade sulphuric acid applied to the integrated circuit industry is obtained after ultrafiltration to remove particles. The operating temperature of the technology, compared with a conventional technology, is lower than 120 DEG C. Therefore, the technology is safer than a high-temperature distillation technology which takes industrial-grade sulfuric acid as raw material, and in addition, compared with adopting equipment made of quartz glass, non-pollution to electronic-grade sulphuric acid products is guaranteed from equipment material.

The invention relates to a device for raising and converting fluid energy, comprising a flow tube device, a yawing seat and a tower drum, wherein the flow tube device is fixed on the top of the tower drum by virtue of the yawing seat; the flow tube device comprises an incoming flow section, a shrinkage section and a wake flow section; the incoming flow section is arranged towards the incoming flow direction of a fluid; the shrinkage section is arranged between the incoming flow section and the wake flow section; the shrinkage section is internally provided with a cabin; the cabin is internally provided with a transmission shaft, a transmission gear fixed on the transmission shaft and an objective power-consumption unit driven by the transmission gear; and two ends of the transmission shaft are fixedly provided with a group of blade wheels or multiple groups of blade wheels respectively. The device can provide large-scale energy sources to ease the increasing energy source crisis on the earth at present; the device is environmentally-friendly; and wind energy and tidal energy generating sets using the device are reduced in investment, and installation investment per kilowatt is farless than that of the existing fired power, nuclear power, hydropower, solar power, wind power and the like.

The invention relates to a flexible controlled-release microsphere disperse system formed by a natural water-soluble polymer and preparation thereof and application of the system in reinforcement of oil extraction. The disperse system comprises an aqueous solution of the natural water-soluble polymer containing carboxyl and hydroxyl groups, an aqueous solution of an inorganic salt and a surfactant-dispersed octane emulsion, wherein the surfactant-dispersed octane emulsion is prepared by adding octane into an aqueous surfactant solution and carrying out uniform dispersion. According to the invention, the natural water-soluble polymer used in the invention is widely available, regenerable and environment-friendly, contains a great number of hydroxyl groups and a proper amount of carboxyl groups in the molecular chains and can form a flexible controlled-release microsphere with proper chain density and a flexible core-shell structure in the presence of multivalent inorganic salt ions. The flexible controlled-release microsphere migrates in holes in strata and can plug large holes, improve injection pressure and adjust injection profile.

The invention belongs to the technical field of nanometer material synthesis, and particularly relates to a green and environment-friendly method for synthesizing nickel nanoparticles. The method includes the steps of adding acetylacetone nickel to olive oil, conducting heating to the temperature of 100 DEG C under the protection of nitrogen, keeping the temperature for 2 minutes, raising the temperature to 120 DEG C, keeping the temperature for 20 minutes, then raising the temperature to 260 DEG C to 280 DEG C, keeping the temperature for 10 minutes to 30 minutes, decreasing the temperature to 70 DEG C to 80 DEG C under the protection of nitrogen, cleaning obtained reaction liquid with n-butyl alcohol and normal hexane, and centrifugally separating out a product to obtain the nickel nanoparticles. The nickel nanoparticles prepared through a solvent thermal method are uniform in size, the production process is simple, the whole process is green and environmentally friendly, and no pollution can be caused to the environment.

The invention relates to a thermo-sensitive composite material, as well as a preparation method and application thereof. The thermo-sensitive composite material is prepared by mixing the following components in percentage by weight: 1-2 percent of high water absorption resin carrier, 5-20 percent of volatile substance, 0-1 percent of emulsifier, and the balance of water, wherein the volatile substance is one of ammonium hydroxide, ethanol, glacial acetic acid and ammonium bicarbonate. The composite material serving as an overheat warning material is applied to an overheat warning system of large power stations and motor distribution cabinets, and has the advantages of normal temperature stable performance, good thermosensitive property, little usage, environmental friendliness, timely and accurate warning and the like.

The invention discloses a preparation method of a <131>I<-> high-efficiency adsorbent in nuclear wastewater, which comprises the following steps: synthesizing sodium titanate nanotubes and nano fibers by a hydrothermal process, and doping and curing nano silver oxide particles to obtain the high-efficiency adsorbent. The high-efficiency adsorbent can quickly and efficiently adsorb and filter nuclear pollution wastewater, can be used for avoiding diffusion of radioactive substance <131>I<-> and other radioiodine isotopes, and is widely used for nuclear accident emergency, nuclear facility shielding and medical radioactive wastewater treatment.1g of the novel adsorbent can be used for filtering and purifying 1 ton of radioactive wastewater; and the adsorbent can completely absorb and fix the radioactive substance <131>I<-> in the nuclear wastewater with the radioactive <131>I<-> content of lower than 200 ppm, and thus, is a high-efficiency adsorbing material with directional selectivity.

The invention discloses an apparatus for extending yellow lead production technology and realizing energy-saving preparation of tetrabasic lead sulfate. The apparatus comprises a heat insulation storage barrel, an automatic metering device, a circular track, a reaction tank, a centrifuging device and a wastewater collecting barrel; and the heat insulation storage barrel is arranged below the discharging opening of a yellow lead calciner, and is used for storing a yellow lead product discharged from the calciner, the automatic metering device is arranged at the discharging opening of the heat insulation storage barrel, the circular track is supported by a support to form an overhead structure, the circular center (initial feeding point) of the circular track is below the heat insulation storage barrel, and other positions are determined according to the layout of a production workshop. The apparatus has the advantages of simple structure, good practicality, full and effective utilization of the product yellow lead obtained through the yellow lead production technology and the heat obtained after the calcination of the product, realization of low energy consumption, high production efficiency, production cost saving, uniform morphology of the produced product, and recycling and no environment pollution of a generated waste liquid.

The invention provides a novel water-based heat-insulating reflective coating and a preparation method thereof. Novel titanium dioxide microbeads are added in the water-based coating so as to reflectnear infrared rays, cold paint is added so as to reduce the absorption of paint to near infrared rays, so that the absorption of the coating on the near infrared rays can be greatly reduced, and the building energy conservation effect can be achieved. Compared with the prior art, the novel water-based heat-insulating reflective coating has the following advantages: (1) the product is water-solubleresin so as not to be capable of causing environment pollution; and (2) the novel water-based heat-insulating reflective coating provides a novel building coating energy conservation method.

The invention aims to provide dirt removing bright water cream for household stainless steel appliances and a preparation method thereof. The water stainless steel bright cream adopts water as solvent, so that the volatilization of organic solvent and the carbon emission are reduced, such advantages as greenness, environmental protection, low carbon and low cost are achieved, and the staff health is protected. Palm wax is added in the formula to achieve a brightening effect; glycerin and white oil are added in the formula to achieve lubricating and humidifying effects; an oil dispersing agent is added to mainly disperse nanometer Al2O3 powder. An emulsifying agent adopts glyceride and nonyl phenol polyoxyethylene ether NP-10. A chelating agent adopts ethylene diamine tetraacetic acid tetrasodium and sodium gluconate. The product is the water cream without causing pollution to the environment, has such three effects as stainless steel dirt removal, brightening and rust removal, and can largely reduce the cost.

The invention provides a novel treatment process for underground water with high content of iron and manganese. Filtering is performed in a three-stage filtering manner including activated carbon filtering, activated carbon filtering and manganese sand filtering. The filter efficiency is high, and the effect is good. Compared with a traditional method, energy is saved, and consumption is reduced; modified bagasse activated carbon is adopted, raw materials are environment-friendly, renewable and low in cost and facilitate recovery of iron and manganese, and waste is turned into wealth.

The invention relates to a preparation method of controlled-release degradable coating material. The preparation method includes the steps of firstly, adding deionized water into starch, adding hydrogen peroxide, adding composite catalyst, and heating to 65 DEG C to allow for oxidizing reaction for 1.5h; secondly, adding sodium sulfite into reaction liquid, adding borax and hydroxymethyl cellulose, and allowing for crosslinking reaction for 40 minutes; thirdly, pasting, namely adding the sodium hydroxide into the reaction liquid, and heating to 90 DEG C to allow for pasting reaction for 30 minutes; fourthly, grafting, namely adding polyacrylamide into the reaction liquid of the step 3, allowing for reaction for 10 hours at 90 DEG C; fifthly, adding 20% PPM of acid into the reaction liquid, adjusting pH of the solution to 7-7.5 to obtain the coating material for fertilizer. The coating material prepared by the preparation method is applicable to surface coating for various fertilizer particles, application range of the coating material is widened greatly, use of the coating material is facilitated, and cost is saved for enterprises.

The invention discloses a regression reflection energy-saving outer wall system. The system comprises a vertically-arranged wall body; a spray head system is arranged on the wall body and comprises awater collection tank arranged on the roof; a water storage tank connected with the water collection tank and a spray head arranged outside the wall body, the spray head is connected with the water storage tank through a water spray pipeline, and a control valve is arranged on the water spray pipeline and connected with a controller; the heat insulation structure is characterized by further comprising an outer retaining wall which is vertically arranged, the outer retaining wall is arranged on the outer side of the wall body at intervals, and a heat insulation space which circumferentially communicates with the outer retaining wall and the wall body outwards is formed between the outer retaining wall and the wall body. The air conditioner has the effects of spraying cooling, heat insulation, heat preservation, convection cooling and the like, so that the cold load of the air conditioner is reduced, and the purposes of energy conservation and emission reduction are achieved.

The invention provides a water body heavy metal removal technique. The fine sand precipitation+activated carbon+activated carbon three-stage filtration mode is adopted for filtration, so the technique has the advantages of high filtration efficiency and favorable effect. Compared with the traditional method, the technique has the advantages of energy saving and consumption reduction. By adopting the modified bagasse activated carbon, the raw material is environment-friendly and renewable, thereby changing wastes into valuable substances and being low in cost. The heavy-metal-attached fine sand can remove heavy metals from the natural water circulation when being used in the arbor planting substrate.

The invention provides a preparation method of an anti-dazzle porous composite film. The preparation method comprises the following steps: (1) preparing silicate sol containing the following components at a mole ratio, wherein the mole ratio of Na2O to Al2O3 to SiO2 is (0 to 0.03): (0 to 0.03): 1; (2) adding a pore forming agent into the silicate sol, enabling the pore forming agent to suspend on the surface of the silicate sol, obtaining a macropore array silicate film compounded with the pore forming agent through a self-assembling reaction, and aging after film formation to obtain a silicate-microparticle composite film; and (3) taking the silicate-microparticle composite film on a slide, carrying out drying and calcinations in sequence, and removing a microparticle template to obtain the anti-dazzle porous composite film, wherein array holes with the pore diameters of 150 to 300 nm are formed in the anti-dazzle porous composite film. According to the prepared composite film, the haze can be improved to the maximum extent on the premise of not reducing the light transmittance in the using process on the glass substrate, so that an anti-dazzle effect is achieved effectively.

The invention discloses a real-time dynamic monitoring device and method for the soil sampling sand content of an underwater open caisson. The real-time dynamic monitoring device comprises a drainage device and a monitoring device, wherein the drainage device is communicated with a side wall of an open caisson soil sampling main pipeline; the monitoring device comprises an incident probe and an emergent probe which are arranged on the two sides of the drainage device, the incident probe is connected with a light source through an incident optical fiber, and the emergent probe is connected with a spectrum detector through an emergent optical fiber; incident light emitted by the light source is transmitted to the incident probe through the incident optical fiber and then enters to-be-detected liquid in the drainage device, and modulated light transmitted from the to-be-detected liquid is absorbed by the emergent probe and then is transmitted to the spectrum detector through the emergent optical fiber. The sand content of the to-be-measured liquid can be dynamically measured in real time on an engineering site, the structure is simple, and measurement precision is high.

The invention relates to a preparation method of tilapia mossambica fodder and belongs to the technical field of fodder preparation. According to the invention, the preparation method comprises the following steps: firstly mixing materials such as banana skin and pear and juicing, and mixing with corn starch, bean pulp and the like to obtain a mixture; then paving the mixture on a glass plate, and after placing earthworm for breeding, collecting the earthworm, and drying and smashing residues on the glass plate to obtain the base stock of the tilapia mossambica fodder; and then, after drying and smashing the collected earthworm and chicken liver, mixing and cooking with radix scutellariae, seaweed and the like, filtering, and mixing a filtrate with the base stock of the tilapia mossambica fodder for standing, thus obtaining the tilapia mossambica fodder. In the tilapia mossambica fodder prepared according to the preparation method disclosed by the invention, the protein content is 27-29%, and the protein conversion rate reaches more than or equal to 3.25%, thus being favorable for the tilapia mossambica to digest and promoting the growth of the tilapia mossambica; the problem of overhigh content of ammonia nitrogen in aquatic water cannot be caused, pollution to the water cannot be caused, and the environment is protected.

The invention provides a preparation method for a photo-catalysis material with an aerogel substrate and relates to the preparation method for the photo-catalysis material. The preparation method is mainly used for solving the technical problem of low photo-catalysis effect caused by the difficulty in utilizing the functionality of the embedded nanometer material of the present nanometer material loading substrate. The preparation method comprises the following steps: 1) weighting nanometer materials with photo-catalysis activity, ionic liquid and celluloses in proportion; 2) uniformly dispersing the nanometer materials in the ionic liquid, and then adding the celluloses, thereby obtaining blended liquid; 3) pouring the blended liquid obtained in the step 2) into a mould, cooling, and then pouring into a regenerating solution, and depositing and regenerating, thereby obtaining a compound gel; and 4) drying the compound gel prepared in the step 3), thereby obtaining the photo-catalysis material with the aerogel substrate. The photo-catalysis material provided by the invention can be used for catalytically degrading the organic pollutants or harmful strains, such as escherichia coli, and the like.