48results about How to "Slow decomposition" patented technology

A nano-ceramic particle reinforced aluminum foam matrix composite material and a preparation method thereof relates to an aluminum foam matrix composite material and a preparation method thereof. The invention solves the problem that in the preparation method of the ceramic particle reinforced aluminum foam matrix composite material, ceramic particles are micron-sized, the uniform distribution of nano-ceramic particles can not be realized, and the existing ceramic particle reinforced aluminum foam matrix composite material has wide aperture and low compressive yield strength. The aluminum foam matrix composite material of the invention is prepared from aluminum or aluminum alloy powder, CaCO3 and nano-ceramic particles. The preparation method comprises the following steps: using a ball mill to process raw material powder and stearic acid, mixing powder, then placing the mixture in a graphite mould to perform vacuum hot press sintering and obtain a perform, performing forward extruding to obtain a semi-finished product, heating and foaming to obtain the finished product. The aperture of the aluminum foam matrix composite material is less than 1mm, and the compressive yield strength is 50-98MPa which is 2-20 times of that of the existing aluminum foam matrix composite material. By using the method of the invention, the nano-ceramic particles can be uniformly distributed in the aluminum foam matrix composite material.

The invention provides a [(indole-3-yl)pyrimidine-2-yl]aminophenylpropyl-2-eneamide derivative and its salt, a preparation method of the derivative, and application of the derivative and the salt. The [(indole-3-yl)pyrimidine-2-yl]aminophenylpropyl-2-eneamide derivative has a structure shown in the formula I below. Deuterium-carbon bonds in the derivative enable the derivative to decompose slowly in a human body, a medicament of the derivative has a longer half-life period and a higher concentration in blood, the dosage of the medicament is finally reduced, and toxic and side effects of the medicament are decreased. Experiments show that compared with AZD 9291 mesylates, AZD 929-D9 mesylate of the deuterium-substituted derivative has Cmax which is 1.32 times as high as that of AZD 9291, exposed dose 1.41 times as high as that of AZD 9291, and elimination half-life 1.31 times as long as that of AZD 9291.

Combustible ice, also called as Natural Gas Hydrate (NGH), is formed at the high pressure and low temperature, and much of the combustible ice is reserved in the seabed and tundra layer and is the third energy source human found. The invention provides a method and a device for exploiting combustible ice in the seabed by seabed firing. The method includes injecting combustion-supporting gas into a natural gas layer of the seabed combustible ice, strictly controlling flow velocity and flow of the combustion-supporting gas, firing through an electromagnetic ignitor, providing head for decomposition of NGH by burning a small part of natural gas, and accelerating decomposition of the combustible ice so as to improve gas production efficiency. Due to burning, the temperature of the natural gas is slightly higher than the balance temperature of the combustible ice, high pressure of gas reservoir of the combustible ice can be kept, and no hydrate of the integral seabed gas collection area is generated.

A sodium hydrosulphite powder for dyeing, printing, bleaching, etc is prepared from thiourea dioxide (CH4N2O2S) (20-40 wt.%) and sodium chloride (NaCl) (60-80 wt.%). Its advantages are high stability and reducing power, and no damage to human body.

The invention discloses novel foamed plastic. The novel foamed plastic comprises the following raw materials: polyether polyol, vinyltri(beta-methoxy-ethoxy) silane, fungacetin, polyester resin, soybean albumen powder, modified starch, montmorillonite, aluminum hydroxide, aupoz fiber, polyamide fiber, glass fiber, polyethylene wax, maleic anhydride, dibutyltin dilaurate, ethylene-ethyl acrylate copolymer, isopentane, potassium isooctanoate, polyvinyl acetate emulsion, simethicone, triethanolamine, an initiator, a cross-linking agent, a catalyst, an accelerant, a plasticizer, a flexibilizer, a foaming agent, a foaming control agent, a foam stabilizer, an antibacterial agent, a degradation agent, an antioxidant and a stabilizer. The novel foamed plastic can be completely degraded into carbon dioxide and water, hardly produces harm to the environment, is low in decomposition speed, and prolongs the service life; in addition, the novel foamed plastic further has the characteristic of a good sound insulation effect.

The invention discloses a soil improving agent. The soil improving agent is prepared from the following raw materials in parts by weight: 10 to 20 parts of montmorillonite, 7 to 15 parts of oyster shell, 9 to 18 parts of earthworm excrement, 5 to 13 parts of sugar residues, 3 to 8 parts of chlorite, 13 to 25 parts of straw, 5 to 10 parts of marsh residues, 7 to 11 parts of turfy soil, 3 to 5 parts of lignin, 2 to 7 parts of polyacrylamide, 9 to 16 parts of rice bran, 3 to 7 parts of fish meal, 4 to 8 parts of silkworm excrement, 2 to 5 parts of humic acid, 1 to 2 parts of calcium carbonate, 2 to 3 parts of ammonium dihydrogen phosphate, 3 to 6 parts of potassium chloride, 1 to 2 parts of sterilizing agent, and 2 to 3 parts of activated carbon. The soil improving agent has the advantages that the acid soil can be neutralized, the growth of crops is promoted, the output is increased, and the diseases and pests can be prevented.

A degradable rib fixator relates to a medical instrument, is adjustable in size, degradable in the human body, free of damage to bone mass, free of secondary surgery, simple in forming process, convenient in surgical operation and safe and reliable, and is provided with a center ridge plate and lateral fixing claws. A plurality of cylindrical holes are arranged at the center of the center ridge plate, and the lateral fixing claws are distributed on the left side and the right side of the center ridge plate. The tip end faces of the lateral fixing claws are circular preferably, and cross parts of the lateral fixing claws are arc-shaped. The center ridge plate and the lateral fixing claws are integrated by injection molding and are made of biomedical high-polymer poly-L-lactic acid with fine biological compatibility and degradable in the human body.

The invention discloses a nutritional solid beverage. The nutritional solid beverage is prepared from whey protein, soyabean protein, marine fish bone collagen oligopeptide powder, purple sweet potato powder, konjaku flour, complex minerals, multivitamins, maltodextrin, 1 part of glycine betaine, sucralose, hydrolyzed casein powder, isomaltulose and polydextrose. All the components in the nutritional solid beverage prepared by the invention are scientifically matched and have a synergistic effect; a prepared product has good instant solubility and mouth feel and is easily absorbed by intestinal tracts; if the nutritional solid beverage is drunk for a long time, the nutritional solid beverage has the efficacy of losing weight, reducing fat, detoxifying and beautifying, replenishing energy and enhancing the immunity of a body; through verification, the effective rate of the solid beverage reaches 95.3 percent.

The invention relates to a composite type soil improvement agent and a preparation method thereof. The method comprises the steps that a, straw is smashed and screened by a 20-150-mesh screen, and straw powder is obtained; b, the straw powder obtained in the step a is mixed with bentonite, xylogen, coal ash, a water-soluble polymer compound and water to obtain mixed serosity, wherein the solid content of the serosity is 5-45%, and the mass ratio of the straw powder to the bentonite to the xylogen to the coal ash to the water-soluble polymer compound is 1:(0.03-1):(0.03-1):(0.03-1):(0.03-1); c, the mixed serosity obtained in the step b is mixed with active carbon with the average grain diameter of 1-10 micrometers according to the mass ratio being 1:(0.03-0.1) for spray drying, and the composite type soil improvement agent is obtained. The soil improvement agent prepared through the method is low in cost, low in decomposition speed and capable of promoting plant growth.

The present invention relates to a licking brick for ruminants and specifically discloses a parasite expelling and stomach strengthening compound premixed feed licking brick used for fattening cattle. The compound premixed feed licking brick consists of edible made salt, haws, cellulase, ivermectin, albendazole, cement, bentonite, ammonium chloride, baking soda, calcium formate, a flavoring agent, calcium hydrogen phosphate, ferrous sulfate, copper sulfate, zinc sulfate, magnesium sulfate, manganese sulfate, sodium selenite, cobalt chloride, calcium iodate, rumensin, compound multi-vitamins and yeast powder. A density of the licking bricks is 1.8-2.2 g/cm<3>. The compound premixed feed licking brick has the following advantages: 1) the provided compound premixed feed licking brick is particularly suitable for licking of the fattening cattle, strengthens stomach, at the same time regulates body endocrine and gastrointestinal functions, promotes toxin removing and diuresis causing, effectively prevents food stagnation in rumen, gastroenteritis diseases, parasitic diseases, etc., and plays double effects of epidemic prevention and health care; and 2) the licking brick aims at nutrition needs and licking characteristics of the fattening cattle, is scientific in design and formula, rich in nutrition, appropriate in food intake, and reasonable in hardness, and can effectively improve production performances of the fattening cattle.

The invention discloses granular lime nitrogen capable of quickly releasing fertilizer effect. The lime nitrogen is synthesized by adopting a drop tube furnace and prepared from nitrogen and the following drying materials including, by weight, 62-68% of calcium carbide, 18-25% of melted calcium cyanamide, 4-9% of fluorite and 8-13% of sodium chloride, wherein the gas forming amount of the nitrogen is larger than or equal to 295 L/kg, and the purity of the nitrogen is larger than or equal to 99.6 percent; the surface of the final product is provided with pores through which water can permeate, and the porosity is larger than or equal to 8 percent. The invention further provides a production technology of the granular lime nitrogen capable of quickly releasing the fertilizer effect. According to the granular lime nitrogen capable of quickly releasing the fertilizer effect and the production technology thereof, due to the fact that a synthesizing technology of the drop tube furnace is adopted, the hardness of the product is smaller than that of a product synthesized by a traditional rotary kiln; the surface porosity is high, closed pores are fewer, water can easily enter the interior of the granular lime nitrogen, the decomposition speed is high, and the fertilizer effect can be fully released; compared with the average 90-day fertilizer effect releasing time of lime nitrogen produced by the rotary kiln, the granular lime nitrogen can achieve the same effect only needing 50 days.

The invention discloses a preparation device and a preparation method of a hydrophobic slow-release organic-inorganic compound fertilizer, the preparation device of the hydrophobic slow-release organic-inorganic compound fertilizer comprises an activation reaction kettle, a material conveying channel I, a compounding tank, a buffer tank, a spraying granulation dryer and a material conveying channel II; according to the invention, the hydrophobic agent is coated to form a plurality of hydrophobic layer films in the fertilizer particles, so that the pores of the fertilizer particles are blocked, the surface wetting angle of the fertilizer particles is increased, water in soil is not easy to wet the interiors of the fertilizer particles, and water-soluble inorganic nutrients in the fertilizer are not leached; and inorganic nutrients are gradually released from outside to inside only along with gradual decomposition and utilization of organic matters from outside to inside, and the hydrophobic slow-release organic-inorganic compound fertilizer can have multiple nutrient proportions from outside to inside through slurry with multiple nutrient proportions and multi-layer spraying granulation.

The invention relates to a dry-land rice seedling raising method and belongs to the technical field of crop cultivation. The dry-land rice seedling raising method is characterized by including steps of flattening and fertilizing soil of a seedling bed before sowing seedling seeds; ridging and ditching the seedling bed; moving the soil 1-2cm in thickness onto the upper layers of ridges of the seedling bed, and paving a net type plastic product (3) on the seedling bed, and paving the moved soil onto the ridges of the seedling bed; uniformly sowing the seedling seeds onto the seedling bed; watering the seedling bed in advance according to water retention conditions of the soil when a seedling (1) is transplanted; lifting the seedling (1) on one side of the seedling bed by pulling force of the net type plastic product (3), and lifting the seedling (1) on the other side of the seedling bed by the same method. The seedling raising method is capable of sufficiently stretching roots of the seeds, normal growth of the seedling (1) is unaffected, and damage to the seedling (1) is low during seedling lifting; meanwhile, labor intensity in seedling lifting is alleviated, and the dry-land rice seedling raising method has the advantages that cultivation of strong seedlings is facilitated, using cost is low, seedling lifting effect is good and operation efficiency is improved.

The invention discloses a device and a method for recycling and recycling phosphorus-containing flue gas in a yellow phosphorus storage tank. The yellow phosphorus storage tank is connected with a buffer tank, the buffer tank is connected with a spray tower, the top of the spray tower is connected with an electrostatic mist eliminator, and the bottom of the electrostatic mist eliminator is connected to a dilute acid tank. The upper part of the spray tower is provided with an absorbent entering pipeline, and the flow rate is controlled by a first electromagnetic valve; the bottom of the spray tower is connected with a circulating acid pump through a pipeline, and then connected to the top of the spray tower, and the outlet pipe of the circulating acid pump is provided with a phosphoric acidrecovering pipeline. The device has the advantages of simple structure, convenient operation, and high-efficiency recycling of the phosphorus-containing flue gas in the yellow phosphorus storage tank. The present invention also discloses the method for recycling and recycling the phosphorus-containing flue gas in the yellow phosphorus storage tank. The recovery of the phosphorus-containing flue gas has high efficiency and short cycle, and the whole process has no phosphorus-containing flue gas leakage, and the absorbent utilization efficiency is high. No new impurity is introduced into recovered phosphoric acid, and the problems that the phosphorus-containing flue gas pollutes environment and damages the health of operators can be solved, and waste is changed into things of value.

The invention discloses environmental-friendly novel foamed plastic. The environmental-friendly novel foamed plastic is prepared from the following materials: polyether polyol, vinyl tri(beta-methoxyethoxy)silane, fungacetin, polyester resin, broad bean protein powder, modified starch, talcum powder, titanium dioxide, linen fiber, polyarmide fiber, glass fiber, polyethylene wax, maleic anhydride, dibutyltin dilaurate, ethylene-ethyl acrylate copolymer, isopentane, potassium isocaprylate, polyvinyl acetate emulsion, dimethyl silicon oil, triethanolamine, an initiator, a crosslinking agent, a catalyst, a promoter, a plasticizer, a toughing agent,a foaming agent, a foaming regulator, a foam stabilizer, an antibacterial agent, a degradation agent, an antioxidant and a stabilizer. The environmental-friendly novel foamed plastic disclosed by the invention has the advantages that the foamed plastic can be completely degraded into carbon dioxide and water, the environment is almost not harmed; the decomposition speed is slow, so that the service life of the foamed plastic is prolonged; and the environmental-friendly novel foamed plastic has the characteristic of good sound-insulating effect.

The invention discloses an environment-friendly foamed plastic, which comprises the following raw materials: polyether polyol, vinyl tri-(beta-methoxyethoxy)-silane, triacetin, polyester resin, black soybean protein powders, modified starch, kaolin, calcium hydroxide, coconut fibers, polyamide fibers, glass fibers, polyethylene wax, maleic anhydride, dibutyl tin dilaurate, ethylene-ethyl acrylate copolymer, iso-pentane, iso-potassium zincate, polyvinyl acetate emulsion, dimethyl silicon oil, triethanolamine, initiator, cross-linking agent, catalyst, accelerant, plasticizer, toughening agent, foaming agent, foaming control agent, foam stabilizing agent, antibacterial agent, degrading agent, antioxidant and stabilizer. The environment-friendly foamed plastic of the present invention can be completely degraded into carbon dioxide and water, so that almost no damage is generated to the environment. Meanwhile, the environment-friendly foamed plastic is slow in decomposition speed and the service life of the environment-friendly foamed plastic is prolonged. in addition, the environment-friendly foamed plastic is good in sound insulation effect.

The invention belongs to the technical field of pharmaceutical chemistry, and discloses a deuterated cabozantinib derivative, a preparation method and an application thereof, and an intermediate of the deuterated cabozantinib derivative. The deuterated cabozantinib derivative is a compound represented by formula I and may be a pharmaceutically acceptable salt, a crystalline hydrate, a solvate, a prodrug, or a monocrystalline of polymorphic substance. The decomposition speed of the deuterated cabozantinib derivative in vivo is slow, so that the poor metabolism of the medicine is reduced; the half life of the medicine is prolonged; the blood concentration of the medicine is increased; and a better therapeutic effect is achieved. Furthermore, the dosage of the medicine is decreased while keeping the therapeutic effect, and the toxic and side effect of the medicine is further reduced.

The present invention relates to a lick brick for ruminants and particularly discloses a calculus preventing compound premixed feed lick brick for rams. The calculus preventing compound premixed feed lick brick for the rams comprises edible salt, cement, bentonite, ammonium chloride, baking soda, calcium formate, a flavoring agent, potassium chloride, calcium hydrogen phosphate, ferrous sulfate, copper sulfate, zinc sulfate, magnesium sulfate, manganese sulfate, sodium selenite, cobalt chloride, calcium iodate, rumensin and compound multiple vitamins. A density of the lick brick is 1.90-2.07 g/cm<3>. According to nutritional requirements and licking characteristics of the rams, the compound premixed feed lick brick suitable for the rams is scientific in designs and formulas, rich in nutrition, adequate in feed intake and appropriate in hardness, and can effectively improve a production performance of the rams. Experiments show that a long-term licking of the lick brick can effectively reduce an incidence of urinary calculi in the rams and can significantly improve the production performance of the rams.

The invention provides a method for preparing strontium aluminate long-persistence luminescent materials based on nanometer fusing assistants. The invention has the technical scheme that the method comprises the following steps: simultaneously preparing a nanometer ammonium pentaborate powder fusing assistant A and a nanometer aluminium borate powder fusing assistant B by a liquid phase method; then, obtaining boron of a mixed fusing assistant and a defect forming assistant through the introduction of the fusing assistant A and the fusing assistant B; and finally, using solid-phase reaction for preparing the long-persistence luminescent materials at the low reaction temperature. The invention overcomes the defects of overhigh temperature required by the reaction, high cost of equipment used in the reaction, high consumption of energy required in the synthesis process, poor luminescent performance of products and the like when the existing solid-phase method is used for preparing the strontium aluminate long-persistence luminescent materials. At the same time, the invention also solves the problems that the traditional products only pursue the persistence time, so the fusing assistant with high boron content is added, the strontium aluminate reaction products can easily obtain the excessive sintering, and the application effect of the pulverized strontium aluminate reaction products is poor. The luminescent materials of the invention are mainly applied to the fields of safety passage display, luminescent printing ink, luminous lighting and light detection, and are also usedfor novel energy-saving LED lamps with persistence.

The invention provides a high-salinity alkali liquor pool wastewater treatment process, and belongs to the technical field of waste liquid treatment. The method comprises the following steps: adding hydrogen peroxide into wastewater and stirring; adding a defluorination agent into the obtained reaction liquid, and performing solid-liquid separation after the reaction is completed to obtain filtrate 1 and solid calcium fluoride; adding a calcium removal agent into the filtrate 1, mixing, reacting and carrying out solid-liquid separation to obtain precipitate and filtrate 2; performing activated carbon adsorption decoloration on the filtrate 2 to obtain a sodium sulfate solution, and regenerating and recycling the activated carbon after adsorption decoloration; carrying out negative pressure concentration on the sodium sulfate solution, and then carrying out solid-liquid separation to obtain a concentrated solution and sodium sulfate crystals; carrying out sulfuric acid pretreatment on the concentrated solution, reacting, carrying out solid-liquid separation to obtain solid impurities and filtrate 3, carrying out negative pressure concentration on the filtrate 3, adding sulfuric acid into the concentrated solution to adjust the acidity, supplementing water, continuously carrying out negative pressure concentration to obtain hydrochloric acid fraction water and a concentrated solution, and crystallizing the concentrated solution to obtain sodium sulfate. The salt in the alkali liquor pool is treated, waste is turned into wealth, the salt pressure of the alkali liquor pool is relieved, and the outsourcing landfill amount is reduced.