135results about How to "Play a role in purification" patented technology

The invention relates to a preparation method of a composite refining agent of an aluminum alloy, and belongs to the technology field of refining agent. The composite refining agent of the aluminum alloy prepared by the invention comprises chloride, fluoride and nitrate, wherein the chloride is the main component of the refining agent with high hygroscopicity; sodium chloride and potassium chloride have good coverage performance and are the basis of the refining agent; hexachloroethane is easy to store, easy to use, has a good purifying effect, and has a grain refining effect; since the loosehexachloroethane and aluminum alloy liquid will react violently, the hexachloroethane and sodium fluorosilicate are pressed together and granulated to improve the purification effect of the hexachloroethane; sodium fluoride can cause the oxide film to mechanically fall off and dissolve in the solvent, thereby playing a purifying function ; the addition of fluoride in the refining agent has an effect of adsorbing and dissolving aluminum oxide; the fluoride accelerates the process of adsorbing hydrogen and inclusions in an aluminum liquid by the refining agent, promotes the migration of the inclusions to the interface and improves the efficiency of the inclusion removal.

The invention relates to a preparation method for tilmicosin phosphate. The preparation method for the tilmicosin phosphate comprises the following steps: completely mixing a tilmicosin solid and an organic solvent I; heating, dissolving and filtering; adding a phosphoric acid aqueous solution into filtration; completely stirring till the solution is salified; cooling to room temperature, slowly adding an organic solvent II dropwise while stirring till complete crystallization, and performing centrifugal separation; performing drip washing on the solid by using the cold organic solvent II for 2 to 3 times; drying the solid to obtain a tilmicosin phosphate solid. According to the preparation method of the tilmicosin phosphate, the tilmicosin is dissolved into solvents such as methanol, ethanol, acetone, dichloromethane and ethyl acetate and then is salified together with phosphoric acid in the organic solvent, so the aims of removing insoluble impurities and purifying products are realized and water-soluble impurities in the products are avoided; crystallization is performed according to different solubility of the tilmicosin phosphate in solvents such as butyl acetate, ethyl ether or petroleum ether to prepare the tilmicosin phosphate solid, so that the method is simple and convenient, and easy to operate; production is realized easily, the final yield reaches above 90 percent, and the purity reaches above 97 percent.

A disclosed gas purifying apparatus for pyrolyzed biomass fuel comprises a purification box, two separation plates are arranged in the purification box, and the internal space of the purification box is divided into a first chamber, a second chamber and a third chamber from left to right by the two separation plates; the top of the first chamber is provided with an atomization rotation nozzle; the second chamber is inside provided with a breather pipe, the other end port of the breather pipe stretches into a base solution filling the bottom of the second chamber and has a distance of 7-18 cm to the solution level; and the top of the third chamber is provided with a rotation atomization nozzle. By employing the three chambers, an acidic gas in a mixed gas can be successively purified from left to right, so that the gas purifying apparatus gives play to multiple purification effect, and is capable of relatively thoroughly completely purifying the acidic gas.

The invention discloses an air treatment device, an air conditioner indoor unit with the same and an air conditioner outdoor unit. The air treatment device comprises a shell, a guide fan and a water treatment module, the guide fan and the water treatment module are arranged in the shell separately, the shell is provided with an air inlet and an air outlet, the shell is internally provided with anair treatment air flue, the water treatment module comprises a water container and a centrifugal water throw-off part, and at least one part of the centrifugal water throw-off part stretches into thewater container and can form a water curtain in the air treatment air flue. According to the air treatment device, the water treatment module comprises the water container and the rotatable centrifugal water throw-off part, and the centrifugal water throw-off part can make the water in the water container form the water curtain in the air treatment air flue through rotation of the centrifugal water throw-off part by means of the effect of centrifugal force. Indoor air can penetrate through the water curtain when circulating in the air treatment air flue, water molecules in the water curtain can adsorb dust, dust particles and the like in the indoor air and make the dust, dust particles and the like in the indoor air blended in water, and then the indoor air can be purified.

The invention relates to a method for detecting 9 kinds of mycotoxins in a cassia seed medicinal material. The method comprises the following steps: a step 1: preparation of a standard substance stocksolution; a step 2: preparation of a mixed standard substance stock solution; a step 3: preparation of a standard working solution; a step 4: preparation of a tested object solution; a step 5: preparation of a substrate matching standard solution; a step 6: determination.

The invention belongs to the technical field of organic synthesis and particularly relates to a synthetic method of 4,4'-(hexafluoroisopropylidene)diphthalic anhydride, comprising the steps of (1) thermally oxidizing 4,4'-(hexafluoroisopropylidene)di-o-xylene under the action of potassium permanganate to obtain hexafluorotetracid; (2) adding the hexafluorotetracid into a mixed solvent of xylene and acetic anhydride, heating and stirring, and post-processing after reaction is over. Less potassium permanganate is added in the oxidizing reaction with less frequency, reaction time is shortened, and operation steps are simplified; the use of inorganic bases is avoided, oxidizing property of potassium permanganate can be improved, and the cost is reduced; dehydration process is modified, reaction temperature is lowered, reaction time is shortened, and hexafluorotetracid can be more efficiently converted into hexafluorodianhydride, with the purity up to 99.5%.

The invention belongs to the field of biotechnology, in particular to a culture medium and a cultural method for endometrial stem cells. The culture medium provided by the invention comprises a serum-free medium, a blood platelet lysate, N-acetylcysteine, galacturonic acid and an antibiotic. The culture medium and the cultural method for endometrial stem cells provided by the invention are used for solving the technical defects of low value increase efficiency of the endometrial stem cells, low cell quality and easy differentiation caused by existing culture medium culture.

The invention relates to a mattress, in particular to a graphene biological diatom sponge mattress. The graphene biological diatom sponge mattress comprises a mattress body and a cover surface fixed outside the mattress body; the mattress body comprises a skin-friendly layer, a graphene biological diatom sponge layer, a common sponge layer and an elastic layer; the skin-friendly layer is arrangedat the topmost end of the mattress body; the elastic layer is arranged at the lowermost end of the mattress body; the common sponge layer is arranged between the skin-friendly layer and the elastic layer; the graphene biological diatom sponge layer is arranged at the upper end and/or the lower end and/or the side surface of common sponge; the thickness of the graphene biological diatom sponge layer is 0.5 to 15cm. The graphene biological diatom sponge mattress has the advantages that negative ions and far infrared rays can be released; mites and bacteria can be killed; certain physical therapyand health care effects are achieved on the human body.

The invention discloses a special organic waste gas purification device for a pipeline of a laboratory ventilation cabinet. The special organic waste gas purification device comprises a waste gas collection system, a waste gas treatment system and a waste gas emission system which are connected sequentially; the waste gas treatment system consists of an air inlet, a purification cabinet and an air outlet; the air inlet is formed in the left lower side of the purification cabinet and connected with the waste gas collection system, the air outlet is arranged on the right side of the purification cabinet and is connected with the waste gas emission system, the purification cabinet is cuboid and has a hollow interior; a deflector plate, a photocatalytic oxidization module and a honeycomb activated carbon adsorption module are arranged in the purification cabinet; the deflector plate is a one-fourth circularly arc-shaped steel plate with the radius of 130mm, the length of the deflector plate is equal to the depth of the purification cabinet and is fixedly arranged on the inner side of the purification cabinet. The device has a simple and reasonable structure, is easy to process and convenient to use, and can effectively purify various waste gases in a laboratory, thus being wide in application range and low in adsorption cost.

The invention belongs to the field of doors/windows and particularly relates to a dedusting screen window with a temperature adjusting function, comprising a window frame. Two rotary shafts horizontally arranged with one above the other are fixedly connected inside the window frame; the two rotary shafts are positioned in a same vertical plane; a drum is rotationally connected to each rotary shaft; a screen tape is wound around the two drums and is composed of first and second screen strips equal in length; the first screen strip is evenly provided with a plurality of first air holes; the second screen strip is evenly provided with a plurality of second air holes; the first air holes are greater than the second air holes in diameter; a dedusting mechanism is arranged between the two rotaryshafts. The screen tape herein can be rotated to adjusting flow speed of air, so that certain temperature adjusting effect is achieved; an electrostatic vertical plate can attract dust in air, thereby removing dust and providing purifying.

The invention discloses a construction method of removing silt in an irrigation canal. The construction method comprises the following steps that 1, concrete is prefabricated; 2, a foundation groove is excavated; 3, a canal is installed; 4, silt is cleared, and 5, soil is recycled. According to the method, the problems that water quality is poor, a water body is muddy, a large amount of the silt and precipitates can be deposited at the bottom in an existing canal are solved.

The invention discloses a waste-gas treating device of a waste-plastic recycling system. The waste-gas treating device comprises a gas collecting hood, a purifying box and a treating box, wherein thegas collecting hood is communicated with the bottom side of the purifying box by a gas delivery pipe; the inner wall of the purifying box, corresponding to a part above the gas delivery pipe, is provided with a blocking ring; a flow-limiting pipe is arranged on the upper surface of the blocking ring; through holes are uniformly formed in the surface of the flow-limiting pipe; a baffle plate is arranged at the top part of the flow-limiting pipe in a covering manner, and the flow-limiting pipe is arranged at the inner side of the edge of the baffle plate; a circulating water pump is arranged atthe outer side of the bottom part of the purifying box; one end of the circulating water pump is communicated with the bottom part in the purifying box by a pipeline. The waste-gas treating device disclosed by the invention has the beneficial effects that by arrangement of the baffle plate and a flow-limiting plate, waste gas passes through a flow-limiting drum to reach the bottom part of the baffle plate; convex blocks at the bottom part of the baffle plate can adsorb particles in the waste gas.

The invention relates to the technical field of automobile exhaust treatment, and discloses a purification treatment device for automobile exhaust. The purification treatment device comprises a shell,a shock pad is fixedly connected to the middle of an inner cavity of the shell, a three-way catalytic layer is fixedly connected in the shock pad in a sleeved manner, and a hot air turning ball is movably connected to the position, located on the right side of the three-way catalytic layer, of the inner cavity of the shell in a sleeved manner. According to the purification treatment device for the automobile exhaust, through cooperation of a pushing device, a turning device and a deposited carbon removing device, when the exhaust is exhausted from a gas inlet hole in the right side of the shell, the pressure intensity of the left side of the deposited carbon removing device is smaller than that of the right side of the deposited carbon removing device at the moment, for the exhaust, an upper scraping hemisphere, a lower scraping hemisphere, a strip-shaped scraping piece fixedly installed in a transverse ventilation groove and a carbon collecting bag can conveniently scrape deposited carbon adhering to the lower scraping hemisphere and the upper scraping hemisphere, a limiting pipe rotates around a360-degree curved rail clamping strip on a linkage column, the deposited carbon is effectively removed, meanwhile, catalytic activity of the three-way catalytic layer is maintained, and the environment is protected.

The invention relates to the technical field of household appliances and equipment and particularly relates to a humidifier refrigerator. The humidifier refrigerator comprises a refrigerator body, a water pan, a hydrophilic material block and an air outlet, wherein the refrigerator body is provided with a refrigerator press bin in which a condenser and a condenser fan for cooling the condenser are arranged, the air outlet direction of the condenser fan faces to the condenser, and an air inlet is formed beside the condenser fan; the water pan is arranged in the refrigerator body and in the air outlet direction of the condenser fan and is communicated with a drain pipe of the refrigerator body; the hydrophilic material block is fixedly arranged in the water pan; and the air outlet is formed in the refrigerator press bin and beside the hydrophilic material block. The existing resource of the refrigerator is sufficiently utilized; and due to the arrangement of the water pan and the hydrophilic material block, the function of a humidifier is achieved, the material for additionally producing a humidifying device is saved, and the energy consumption is reduced.

The invention relates to a diatomite forming composition with hygroscopic and deodorization functions and a preparation method thereof. The diatomite forming composition is prepared from the following components in percentage by weight: 5% to 40% of diatomite, 5% to 20% of tourmaline powder, 1% to 5% of inorganic cleaning agent, 0.1% to 1.0% of acrylic resin adhesive, and the balance of gypsum powder; the inorganic cleaning agent is composite powder prepared by attaching precious metal catalysts to layered inorganic functional materials. According to the diatomite forming composition with the hygroscopic and deodorizing functions and the preparation method thereof, the diatomite forming composition can effectively eliminate harmful gases when the concentration of harmful aldehydes, ammonia and benzene gases is relatively low, instant effectiveness is good, and the purpose of purification in a short time can be achieved; the diatomite forming composition has a relatively strong adsorption capacity of moisture and a strong hygroscopic effect; the diatomite forming composition has a simple production process and a strong purification effect, and is easy to industrial production.

The invention discloses a fragrance emitting LED lamp which comprises a cooling cavity, a fan cavity, a cooling fan and a drive motor. The fan cavity is fixedly connected to the upper side of the cooling cavity, the cooling fan is arranged in the fan cavity, the drive motor is arranged above the cooling fan, two fragrance cavities are respectively arranged in two sides of the cooling cavity, an LED substrate is arranged in the cooling cavity, cooling fins are arranged above the LED substrate, a current stabilizer is arranged on one side of the cooling cavity, a temperature control module is arranged on the other side of the cooling cavity, and a temperature sensor electrically connected with the temperature control module is arranged on one upper side of the cooling cavity. The fragrance emitting LED lamp is simple in structure and novel in design, the cooling fan can be automatically turned on or off according to the temperature inside the cooling cavity so as to achieve the cooling operation of the lamp with higher efficiency by the arrangement of the temperature control module and the temperature sensor, the service life of the lamp is prolonged, and meanwhile, energy-saving andenvironmental protection characteristics are achieved.

The invention relates to an intelligent clothes care machine which comprises a box (1) and a sliding door (2) installed on the box (1). A supporting board (101) is vertically installed at the portion, close to a left side board or a right side board, in the box (1). An air duct is formed between the supporting board (101) and the left side board or the right side board of the box (1). The supporting board (101) does not make contact with a top board and a bottom board of the box (1). A far infrared generation device (102) is installed on the face, facing the left side board or the right side board of the box (1), of the supporting board (101). By the adoption of the intelligent clothes care machine and a control method of the intelligent clothes care machine, use is convenient and multiple functions are achieved.

The invention provides a vermiculite-kieselguhr compounded water absorption foot pad and a preparing method thereof. The vermiculite-kieselguhr compounded water absorption foot pad is prepared from, by weight, 40-70 parts of kieselguhr, 10-25 parts of expanded vermiculite, 15-30 parts of calcium hydroxide and 5-20 parts of wood pulp fibers. The vermiculite-kieselguhr compounded water absorption foot pad has the advantages of being super-high in water absorbing capacity, quick in moisture discharging and drying performance, resistant to pest, corrosion and mould and the like, is of a firm and stable layer-net porous structure, and has the powerful adsorption purification performance, dust, particles, viruses, hazardous substances and peculiar smells floated in air can be absorbed and decomposed, and therefore the air purifying effect is achieved. According to the preparing method of the foot pad, the structure of the product prepared with the method is of an interconnecting and engaging structure like a spider web, countless micro holes are formed in the product, and compared with the raw material, the absorption effect of the product is enhanced, and the product has the advantages of being convenient, simple, easy to operate and the like, and is suitable for mass production and wide application.

The invention discloses a method for separating high-content carnosic acid from rosemary, which comprises the following steps: 1) extracting dried rosemary leaves by using continuous countercurrent extraction equipment, adding auxiliary materials for decolorization, discharging the extracting solution from a liquid outlet, carrying out coarse filtration and fine filtration to obtain a filtrate 1, carrying out vacuum concentration on the filtrate 1 in a concentration tank, standing and cooling, and filtering to obtain paste A; 2) dissolving the paste A in an extraction tank by using an acid-added organic solvent, filtering to obtain a filtrate 2, adding vegetable oil accounting for 1/6-1/2 of the mass of the paste A into the filtrate 2, concentrating under reduced pressure until no solvent drips, and standing to obtain an insoluble substance B; and 3) carrying out degreasing treatment on the insoluble substance B to obtain a product C, namely the high-content carnosic acid.