627results about How to "Overcoming pollution" patented technology

The invention discloses a method for preparing monopotassium phosphate by using wet-process phosphoric acid. The method comprises the following steps: reacting carbonyl diamide and wet-process phosphoric acid to obtain an intermediate; reacting the intermediate and potassium hydroxide to prepare a monopotassium phosphate product. The method has the advantages of short process route, low energy consumption, stable product quality, low production cost, convenience in operation and safety in production. A side product, namely, slurry can be recycled completely, an entire production process is environment-friendly, clean and free from pollution, and no waste gas, waste water or waste residues are discharged. A response is made to the policy calling of energy saving, emission reduction and clean production, the problems of complex process, instable product quality, high energy consumption and environmental pollution existing in the prior art are solved, and the purity of the obtained monopotassium phosphate product is more than or equal to 98 percent.

The invention discloses a making method of aminophenol with substituted group through hydrogenating nitrophenol with substituted group, which adopts Ni-A / X typed loaded catalyst, wherein A is one of Co, Mn, Cu, Cr, Mo, Ca, Zn, Fe and W; the carrier X is one of their composition of zeolite molecular sieve, Al2O3, SiO2, TiO2, MgO, active charcoal or amorphic aluminium silicate; the mass percentage of Ni in the catalyst is 2-45% and the mass percentage of component A is 1-40%.

The invention provides a separation device for coal and waste rocks. The separation device comprises a vibrating coal feeder, a conveying belt, a queuing device, an image sensor, an image collector, a microprocessor, an upper computer, a separation controller, a high-pressure spray gun, a coal briquette channel and a waste rock channel. Information of the image sensor is processed in real time through the microprocessor and then sent to the upper computer, image information preprocessing, feature extraction, soft measurement model establishing and separation signal outputting are carried out, separation signals are sent to the separation controller, raw coal naturally falls into the coal briquette channel, and the waste rocks fall into the waste rock channel through the high-pressure spray gun. The invention further provides a separation method. The separation device and the separation method have the advantages that the defects of a low recognition rate, heavy environmental pollution and the like existing in an existing coal and waste rock separation method are effectively overcome, the recognition rate of the separation method is high, the environmental pollution can be effectively lightened, the separation device is small in size, easy to install and maintain and low in cost, separation precision and the automation degree of the raw coal are greatly improved, and manual waste rock picking is replaced.

The invention relates to a chemical fertilizer and a production method thereof, in particular to a biological organic inorganic compound fertilizer product and a production method thereof. The biological organic inorganic compound fertilizer product comprises a fertilizer core and a coating in which the fertilizer core is wrapped, wherein the fertilizer core is a particle which is produced by adding humic acid and inorganic nitrogen-phosphorus-potassium raw materials to concentrated waste liquid rich in amino acid, organic matter and other nutrient components, guniting, coating and granulating; the concentrated waste liquid is obtained by treating wastewater of gourmet powder factories; and the coating at least comprises animal oil-fat, starch, bone glue and bacillus components. The product integrates quick, slow and long effects, and integrates organic, inorganic and biological materials. The production method takes the animal oil-fat, the starch and the bone glue which can provide lipid and other nutrients for microorganisms and are easy to degrade as carriers of a bacillus preparation, overcomes the phenomenon that the mixture of the bacillus preparation and other fertilizer components is easy to cause pollution to microbial agents and poison strains.

The invention relates to a statistical method and system for audience ratings based on a block chain. The statistical method for the audience ratings based on the block chain comprises the following steps that collection nodes obtain current playing metadata of playing equipment, generate message records according to the metadata and send the message records to record nodes; the record nodes temporarily store the received message records and synchronize the message records received by the record nodes; one of all record nodes is selected to obtain block account right; the record node which obtains the block account right is temporarily stored in a new block which is formed by packaging all message records in the record nodes and is stored in the block chain; and statistical clients obtain blocks which are obtained from the block chain and count the audience ratings according to the message records in the blocks. According to the statistical method and system for the audience ratings based on the block chain, statistics of the audience ratings can be can be realized at low price in a way of collecting ratings data from different viewing channels in the whole network based on the advantages of the block chain, and the real and accurate ratings data can be obtained.

The invention discloses a deformed steel bar compound corrosion-inhibited quenching agent and a usage method thereof. The compound corrosion-inhibited quenching agent is obtained by mixing the following compositions in parts by weight: 0-1 part of sodium carboxy methyl cellulose, 0-1 part of sodium polyacrylate, 0.1-1 part of sodium benzoate, 0.1-2 parts of triethanolamine, 0-0.1 part of sodium molybdate, 0-5 parts of sodium hydroxide, 0-10 parts of sodium carbonate, 5-15 parts of sodium silicate, and 70-90 parts of water. In use, the non-rusted deformed steel bar is subjected to quenching treatment in the corrosion-inhibited quenching agent for 1-2s at 100-200 DEG C, thereby being capable of slowing down the corrosion of the deformed steel bar under the atmosphere. The corrosion-inhibited quenching agent does not contain nitrite and chromate, has no S and P atoms, and is green and environment-friendly, low in cost, and recyclable.

The invention relates to an automobile special material produced by utilizing recovered plastic, comprising the recovered plastic, polypropylene, polyolefin elastomer, filler, coupling agent, antioxygen and toner, wherein the recovered plastic comprises PP plastics, such as a PPR tube, a washing machine cylinder, a battery jar, a bumper, an outdoor air-conditioning shell and the like. The produced automobile special material can be used for bumpers, splash guards, instrument boards, door interior trimming panels, automobile lamp holders and the like, can greatly lower raw material cost, eliminates resource wastage and environment pollution problems to a certain degree and realizes circular economy and low-carbon development.

The present invention relates to a chemical fertilizer and a manufacturing method thereof, specifically to a composite biological slow-release fertilizer product and its manufacturing method. Said composite biological slow-release fertilizer product in accordance with the present invention comprises granular fertilizer cores and coatings packing outside of the fertilizer cores, wherein said fertilizer cores are grains formed by a mixture of ternary compound fertilizer and the slow-release components which are mixture of urea and humic acids. Said coatings comprises at least animal oil and fat, bone meal and bacillus components. By replacing steam for heat spraying granulation with urea and humic acids melting complexing liquor, the manufacturing method in accordance with the present invention resolves the problem of moisture exceeding standard in 'three (organics, inorganics and bilogies) in one' fertilizer production and achieves the goal of nitrogen slow-release. At the same time, by adopting animal oil and fat and bone meal which can provide food such as lipids to animalcules and are easy to degrade as bacillus preparation carrier, said method overcomes the problems that the mixing of bacillus preparation and other fertilizer components leads to bacterial agent pollution and bacterium poisoning phenomenna. The present invention provides a 'three (organics, inorganics and bilogies) in one' composite biological slow-release fertilizer product which exhibits quick results, slow results and long results integrally, and a manufacturing method thereof.

The invention relates to a method for oxidation desulfurization of fuel oil. According to the method, (1) peroxide or a mixture of peroxide and oxygen (air) and (2) a heterogeneous catalyst which has catalytic action and contains Pd, Pt, Ru, Au and Ag are involved, and under the effect of the catalyst, the peroxide is decomposed to generate high-oxidbillity free radicals to be used for oxidized removal of sulphur-containing substances in the fuel oil. The molar mass of the catalyst on a metal basis is 1 / 5000-1 / 2 that of sulfide, and the molar mass of an oxidizing agent is 1 / 2-100 / 1 that of the sulfide. Compared with a conventional method, the method has the advantages of being high in desulfurization efficiency, moderate in reaction condition and simple in process and having easiness in separation.

The invention discloses a production of food packaging film and the method for preparation, specifically a degradable complex film prepared with degradable nanometer PA polymer as the obstruct material. Said complex film has a layer structure containing at least two outer layers and one interlayer, at least one layer among which is the obstruct layer, the obstruct layer being made up of degradable nanometer PA polymer, and others being made up of degradable polyolefin or polyolefin. Compared with the high-obstruct film prepared with PVDC, the invention overcomes the shortcomings that the manufacture is hard, the cost is high, environmental pollution is serious, and the recovery is hard. And the high-obstruct packaging film prepared mainly with nanometer PA has identical obstruct effect with PVDA film.

The invention discloses a potted plant substrate bag and belongs to the technical field of plant container culture and substrate culture. In order to solve various troubles and the pollution problem occurring during potting, pot change, soil utilization, watering and management of household potted plants at present, the invention provides a household material which is clean, easy, fast and happy for performing the container culture. The technical scheme disclosed by the invention is that the potted plant substrate bag is manufactured by wrapping a potted plant substrate with permeable and breathable cloth, and is characterized in that the substrate is completely wrapped by the cloth; the substrate bag is put in a potted plant container to perform the container culture; the substrate bag is soft and is deformable; the planting side of the substrate bag can be molded, and even can be made into a three-dimensional modeling and a cartoon modeling. Three-dimensional culture can be performed on the three-dimensional modeling; and a waterproof film also can cover on the planting side of the substrate bag. The potted plant substrate bag has functions of various functional mulching films. The invention also provides a culture and application method for the potted plant substrate bag.

The present invention relates to a double-layered alkali grain heat-insulting covering agent for middle ladle. The heat-insulting covering agent consists of top slag in 10-50 wt% and bottom slag in 50-90 wt%. The bottom slag consists of SiO2 8-15 wt%, CaO 50-60 wt%, MgO 10-20 wt%, Al2O3 1-5 wt%, Fe2O3 1-3 wt%, and fixed carbon 0.01-1 wt%. The top slag consists of SiO2 85-93 wt%, CaO 0.001-3 wt%, MgO 0.001-3 wt%, Al2O3 0.001-3 wt%, Fe2O3 0.003-0.5 wt%, and fixed carbon 0.01-1 wt%. The heat-insulting covering agent forms two layers of slag, the bottom layer covers molten steel to prevent secondary oxidation, reduce carbon content in molten steel and adsorb alumina floating to the surface of molten steel, and the top layer in porous and loose structure covers molten steel to prevent incrusting and carburization.

The invention provides a microwave ultrasonic-assisted aqueous enzymatic method for extracting linseed oil. The method comprises the following steps: 1, screening linseed, and carrying out drying and pulverizing sequentially to obtain linseed powder; 2, uniformly mixing any one or more of cellulase, hemicellulase, pectolase and beta-glucanase with protease to obtain a complex enzyme; 3, adding deionized water, the linseed powder and the complex enzyme in a microwave ultrasonic wave combined type reaction kettle for enzymolysis to obtain an enzymatic hydrolysate; 4, performing solid-liquid separation to obtain the linseed oil. The method has the advantages of being high in oil content and extraction efficiency, so that a new effective way is provided for extraction of the linseed oil from the linseed.

The present invention belongs to the field of plant extraction, and specifically relates to a method for preparing quercetin by adopting flos sophora and producing rhamnose by using the quercetin preparation waste liquid. The technical problem solved by the method is to provide a completely new process for producing quercetin and rhamnose. The method specifically comprises the following steps: A, taking a proper amount of flos sophora, crushing, and adopting saturated and clarified lime water to extract rutin; B, adopting the rutin extracted in the step A to carry out hydrolysis to prepare quercetin; C, carrying out fermentation on the waste liquid from the step B to prepare a rhamnose crude product; and D, adopting methanol to separate glucose in the rhamnose crude product in the step C to prepare the rhamnose fine product. The method has characteristics of high yield, low cost, simple process, low pollution and low energy consumption, wherein the by-product rhamnose is produced so as to achieve a resource saving purpose.

The invention discloses a method for rapidly detecting the content of aflatoxin. The method comprises the following steps of: after smashing a sample to be detected, putting the sample powder into a beaker, and adding an extractant for shaking or performing ultrasonic extraction; filtering, performing water bath evaporation on a filtrate, and metering the volume to obtain a test sample; respectively pointwise adding the test sample and an aflatoxin B1 standard substance which are commensurate on a thin-layer silica gel plate, pointwise adding derivative reagents into sampling points, and respectively developing by developers; and comparing the fluorescence intensity of the test sample and the aflatoxin B1 standard substance under an ultraviolet lamp to judge whether the content of the aflatoxin in the test sample exceeds the standard. The method for rapidly detecting the content of the aflatoxin has the advantages of small solvent amount, simple sample treatment and short measurement time; the method does not need a professional, only needs small apparatus, and is particularly suitable for rapid field detection; and the method effectively avoids the harm and the pollution of trifluoroacetic acid to operators and the environment, improves the method sensitivity, and has the lowest detectable amount of 0.00032 mu g and the lowest detection limit of 3 mu g / kg.

The invention discloses a combined soil sampler capable of sampling in a layering manner. The combined soil sampler comprises a top cover, more than two cylinders and a sampling head, wherein each cylinder comprises an outer cylinder and an inner cylinder; each outer cylinder is divided into two half bodies along the middle axis; each inner cylinder is closely attached to the inner wall of the corresponding outer cylinder; each two half-bodies are connected to form a whole body through a connection clip; the top cover and the cylinders are in threaded connection; the various cylinders are in threaded connection; the cylinders and the sampling head are in threaded connection; the two parts in threaded connection are also fastened through a movable buckle; an air hole is formed in the top cover; a horizontal rotary handle is arranged on the side wall of the top cover. According to the invention, a plurality of detachable cylinders are combined, and thus pollution caused by the fact that a soil sample is in contact with a sampling cylinder during multiple times of sample collecting, and loss and pollution caused by transferring the cylinder into other containers again are avoided; in addition, because a sample is cylindrically packaged in the inner sampling cylinders, the possibility of preserving the sample for a long time and layering the sample again is realized.

The invention relates to a method for separating and extracting cholesterol in lanolin alcohol, which comprises the following steps: carrying out molecular distillation on lanolin alcohol, collecting the light-phase fraction which is refined lanolin alcohol, heating the refined lanolin alcohol in a mixed solvent of methanol and acetone until the refined lanolin alcohol is completely dissolved, and cooling to cooling temperature, wherein the remainder of the filtrate after reduced pressure distillation is the primary concentrate of cholesterol; heating to dissolve the primary concentrate of cholesterol in acetone, cooling to precipitate, filtering, and carrying out reduced pressure distillation on the filtrate to recover the solvent, wherein the balance is the secondary concentrate of cholesterol; heating to dissolve the secondary concentrate of cholesterol in an alcohol solvent, cooling to cooling temperature, keeping the temperature for 6-12 hours, and vacuum-filtering to obtain the white acerose cholesterol crude product; and recrystallizing the cholesterol crude product through a methanol-acetone mixed solvent to obtain the refined cholesterol product. The refined cholesterol product selectively recrystallizes through the solvent to obtain the byproduct lanosterol accounting for 63-70% and the cholesterol product of which the purity is more than 90%.

The invention discloses a method for producing 1,6-dimethyl adipate. The method comprises the following steps of: (1) mixing adipic acid and methanol without adding a catalyst, and performing pre-esterification reaction at the temperature of 80 and 200 DEG C under the gage pressure of between 0.05 and 3 MPa; and (2) conveying materials which are subjected to the pre-esterification reaction to the upper part of a continuous catalytic rectifying tower, and gasifying the dried methanol, conveying to the lower part of the catalytic rectifying tower, allowing the materials which are subjected to the pre-esterification reaction to contact methanol steam in a reverse flow mode in the catalytic rectifying tower and performing esterification reaction further. By the method, the problems of equipment corrosion and pollution which are caused by the utilization of a sulfuric acid catalyst in the conventional process are solved, and the defects of complex processes, large consumption level of the catalyst and the like which are caused by the adoption of two-step or multi-step catalytic esterification are overcome.

The invention discloses a reagent for detecting single liquid of glucose oxidase, which is in a state of single liquid. The reagent comprises the following components: 1 to 50KU / L of glucose oxidase, 0.5 to 50 KU / L of peroxidase, 0.1 to 20mmol / L of 4-amino-antipyrine, 1 to 200g / L of sodium sulfate, 5 to 500mmol / L of 3-Morpholinopropanesulfonic acid, 0.05 to 10g / L of highly sensitive tertiary color source, 0.05 to 20g / L of antiseptic agent, and buffer solution of which the pH value is between 5.0 and 8.0. The reagent has the advantages of existence in a state of single liquid, excellent stability and sensitivity, wide detection wavelength range and the like.

The invention discloses a method for removing arsenic, antimony and copper by refining raw lead. The invention aims to provide the method for removing the arsenic, antimony and copper by refining the raw lead. The method is characterized by comprising the following steps of: A, putting raw lead ingots into an open lead melting pot, and heating the raw lead ingots to the temperature of between 450 and 850 DEG C for melting lead into lead liquid; B, putting aluminum or aluminum alloy into the lead liquid obtained in the step A, fully mixing the aluminum or the aluminum alloy and the lead liquid with stirring, and generating scum which floats to the surface of the lead liquid; C, fishing the scum, namely fishing the scum generated in the step B after stirring to obtain the lead liquid removed with arsenic, antimony and copper; and D, casting ingots, namely casting the ingots by using the impurity removed lead liquid obtained in the step C to obtain lead ingots removed with the arsenic, antimony and copper. The method is mainly used for removing the arsenic, antimony and copper by refining the raw lead.

The invention provides a graphical sapphire substrate preparation method. The method comprises the following steps: step A, carrying out magnetron sputtering on one side of a sapphire substrate so as to form a metal aluminium coating; step B, coating a photoresist film on the metal aluminium coating and drying; step C, completing laser interference exposing and developing so as to obtain a photoresist graph; step D, utilizing a graphical photoresist on the metal aluminium coating as a mask, adopting reactive ions to etch the metal aluminium coating and remove the photoresist, and obtaining the graphical metal aluminium coating of a metal aluminium coating boss on the sapphire substrate; step E, carrying out low-temperature heat treatment so as to sufficiently oxidize the graphical metal aluminium coating to form a graphical polycrystal Al2O3 film; and step F, carrying high-temperature heat treatment on the obtained graphical polycrystal Al2O3 film, and completely converting the graphical polycrystal Al2O3 film into a graphical single-crystal Al2O3 film so as to obtain the graphical sapphire substrate. The graphical sapphire substrate preparation method is simple and practical in technology, low in cost and large in area.

The invention provides a riverbed base vegetation type ecological blanket repair method. The method comprises the steps of: preparing vegetation ground substance by mixing sand and stones, raw soil, substrate sludge, water-retaining agents and water by proportion; uniformly adding aquatic plant seeds or interplanting aquatic plant branches in the vegetation ground substance; covering the vegetation ground substance by nonwoven fabric, and forming a blanket by a pressing machine and a forming machine; and covering a layer of nylon mesh outside to form the vegetation type ecological blanket. When in use, the vegetation type ecological blanket is smoothly laid at riverbed bottom, and bamboo fillers are drilled at the four corners, and the centers of the upper edge and the lower edge of the vegetation type ecological blanket to fix the vegetation type ecological blanket at the riverbed bottom. The invention solves the problems of the difficulty of aquatic plant repair at the riverbed with deeper silt, and the damage to riverbed microecosystem caused by desilting and dredging. Inner source pollution caused by the release of infectant in substrate sludge to water can be effectively restricted, and all of the used materials are environmental friendly. When in use, the vegetation type ecological blanket can be installed and laid conveniently on site, and have low cost and obvious effect.

The invention relates to a reprogrammed culture medium and a culture method of a reprogrammed induced multipotential stem cell. The reprogrammed culture medium is composed of a DMEM-F12 basal culturemedium and additive components, wherein the additive components comprise 60-180 microgram / mL of L-ascorbic acid, 5.3-74 micromole / L of hydrocortisone, 3-89 nanogram / mL of sodium selenite, 8-23 micromole / L of Optiferrin, 0.5-7.4 micromole / L of retinyl acetate, 40-60 nanogram / mL plant-derived recombinant human alkaline growth factors, 8-12 microgram / mL of IGF, 0.2-0.6 microgram / mL A-83, 2-6 micromole / L of CHIR99021 and 100-450 micromole / L of sodium butyrate. The use of the reprogrammed culture medium not only can improve the safety of clinical use, but also can improve the efficiency of adult cell reprogramming to induce the multipotential stem cell.

The invention discloses a simplified process method of lost wax casting, which comprises the following steps in sequence: wax tree planting, plaster mold preparation, and lost wax casting; before the wax tree planting step, the following steps are included: (1) directly molding a resin female mold by a rapid molding device, wherein the resin female mold comprises a mold cavity which has the same shape as the product to be prepared by the simplified process method of lost wax casting; (2) injecting a wax mold: melting paraffin and performing heat insulation, filling the resin female mold with the paraffin in a wax injector, cooling, and finishing to obtain a wax mold. The method of the invention omits a plurality of procedures for mold turnover, saves the cost, and prevents the problem that dimensions and styles deviates the initial design due to multiple male mould-female mold conversion; and the resin female mold is directly molded by the rapid molding device, and thus product pattern replacement is very flexible and rapid.

The invention relates to a preparation method for graphical sapphire substrate for epitaxial growth of nitride, which comprises the following steps of: firstly, magnetron sputtering a layer of aluminous film on the sapphire substrate; next, coating two layers of photoresist films and the lower layer of photoresist film has better photosensitivity; next, exposing and developing the substrate to form a photoresist film graph; then carrying out magnetron sputtering to a second layer of aluminous film, and dipping the aluminous film in solvent to remove the outer layer aluminous film; finally processing the substrate at lower temperature and then high temperature to form the graphical sapphire substrate with single crystal alumina film. The preparation method is simple and easy to implement, which overcomes the problems that the dry etching method will pollute and damage substrate as well as overcomes the problems that the wet etching method will cause graphic distortion.

The invention discloses a modified polypropylene non-woven fabric, its preparation method and application. The preparation method comprises: impregnating a polypropylene non-woven fabric in a grafting solution containing a graft monomer, a crosslinking agent, a non-ionic surfactant and a photosensitizer, and initiating graft polymerization under ultraviolet irradiation, thus obtaining the modified polypropylene non-woven fabric, which can be widely used in adsorption separation treatments of dye wastewater, heavy metal ion wastewater, inorganic anion acid radical-containing chemical wastewater and the like as a filtering material. The modified polypropylene non-woven fabric provided by the invention has the characteristics of high mechanical strength, large water flux, and great saturated adsorption capacity. Meanwhile, after being subjected to a regeneration treatment in a cationic surfactant-containing ethanol solvent desorption solution, the adsorbed filtering material can be recycled.

This invention discloses a colored pavement cementing material, which comprises the following components by weight: 7-27% of softener, 71% of resin tackifier, 5-13% of SBS (styrene-butadiene-styrene block copolymer), 5-15% of SBR (styrene butadiene rubber), 0-16% of plasticizer, 4-9% of coloring agent, 1-5% of colorants dispersing auxiliary, 0-4% of ultraviolet absorbent, 0-4% of antioxygen, and 0-8% of crosslinking agent. The preparation method comprises the following steps: placing the softener in a reactor, heating to a temperature of 140-150 DEG C, continuously heating, stirring and starting to add the resin tackifier, continuously stirring with a temperature of 150-180 DEG C until the resin tackifier is completely dissolved, adding the SBS to dissolve, adding the plasticizer to dissolve, and adding the SBR to dissolve, and finally adding the rest materials, stirring to sufficiently dissolve, and air cooling to get the colored pavement cementing material.

The surface modifier for concrete aggregate consists of inorganic sulfate coagulating agent 0.06-0.1 wt%, inorganic sulfate coagulant 1.25-2 wt%, and organic sodium methyl silicate 2.5-4 wt%. The surface modifier can lower the water absorption of high hydroscopicity aggregate, with includes regenerated aggregate, artificial light aggregate, etc. The surface modifier may be sprayed or soaked onto high hydroscopicity aggregate for surface modification, and has low cost, no pollution and high surface modifying effect.

The invention relates to a technique of synthesizing paraaminophenol by catalyzing and dydrogenating nitrobenzene, and belongs to the technical field of aminophenol. The invention is the technique of producing the paraaminophenol from the nitrobenzene catalyzing dydrogenating device in the metal salt liquors, wherein, the quality compounding rate of the material has a mass distribution ratio that Lewis acid metal salt: load metal Pt activator: nitrobenzene: hexadecyl trimethyl ammonium bromide: water is equal to 0.5 to 5 : 0.1 to 0.3 : 1 to 5 : 0.01 : 50. The invention has the reacting conditions that: a branch pressure of the hydrogen is 0.1 to 1.0 M Pa, a reacting temperature is 80 to 200 DEG C, and a reacting time is 1 to 10 hours. The reaction which is proceed in the neutral or acidulous metal salt liquors has not high requirements to the device material, thereby preventing using abundant ammonia during the managing process, simplifying the production craftworks and overcoming the problems of the canker of the device and the serious environmental pollution; the metal salt and the activators can be separated from the reaction system for being reused repeatedly; therefore, the invention reduces the production cost, also prevents the discharging of the waste liquids and makes the yield of PAP highly reach to 25 to 73 percents.