367results about How to "No three wastes pollution" patented technology

The invention provides a subcritical liquid extraction device and a subcritical liquid extraction method of active ingredients of natural products, relating to a device and a method for extracting active ingredients of natural products. The device comprises a control system part and a leaching system part, wherein the leaching system part comprises an extraction tank 1, an evaporating tank 2, a buffer tank 3, a condenser 4, a solvent tank 5, an ultrasound generating device 11, a vacuum pump 9, a fire arrester 10, a compressor 8, a hot water pump 7 and a hot water box 6; the control system partcomprises a leaching temperature controller, a leaching time controller, a leaching frequency controller, a material dissolving ratio controller, an exsolution temperature regulation controller, an exsolution pressure feedback controller, an electric appliance controller of the device and an excess-temperature excess-pressure leaking alarm. The method can select different subcritical extraction media according to different extraction products, combines a subcritical liquid extraction technology and an ultrasonic extraction technology to increase extraction rate and reduce extraction time andis a new high-efficiency low-consumption environment-friendly technology for extracting active ingredients of natural products.

The invention discloses a method and a die for the forward extrusion and variable diameter bending extrusion of magnesium alloy semi-solid billets. The preparation method comprises a predeformation process and an isothermal spheroidizing heat treatment process, wherein in the predeformation process, uniform deformation of large deformation amount is realized by the die for the forward extrusion and variable diameter bending extrusion; cutting a magnesium alloy bar stock which is subjected to large deformation by a fixed size; heating the magnesium alloy bar stock cut by the fixed size at the temperature of between 520 and 580 DEG C under the protection of argon, and keeping the temperature of the obtained magnesium alloy bar stock for 10 to 30 minutes; and processing a bending extrusion angle of the die to be over 90 degrees. The method has the advantages of small predeformation resistance, large and uniform deformation, safety, reliability and no three-waste pollution. The grains of the prepared magnesium alloy semi-solid billets have fine size, are uniform and have a shape close to that of a sphere. The method solves the problem that the conventional SIMA method cannot continuously prepare the large-size semi-solid billets and meets the requirements of the semi-solid thixoforming workpieces for large-scale continuous production.

The present invention relates to a high-purity zirconium oxychloride production method, specifically to a method for producing high-purity zirconium oxychloride and co-producing silicon tetrachloride through a zircon sand boiling chlorination method. The method comprises: adopting zircon sand, a reducing agent and a stabilizer, introducing chlorine gas into a chlorination furnace at a gas velocity of 0.07-0.12 m / s, carrying out a boiling chlorination reaction at a temperature of 1150-1200 DEG C to generate zirconium tetrachloride and silicon tetrachloride, carrying out gas-solid separation, and carrying out hydrolysis and purification on the separated solid and carrying out evaporation, crystallization and separation on the zirconium oxychloride solution so as to obtain the high-purity zirconium oxychloride and the co-produced product silicon tetrachloride, wherein a mass ratio of the zircon sand to the reducing agent to the stabilizer to the chlorine gas is 0.9-1.1:0.2-0.3:0.3-0.4:2.7-2.8. The product produced through the method of the present invention has characteristics of good quality, low production cost, and no polluting.

The invention provides a multifunctional inorganic thermal insulation material composition, a multifunctional inorganic thermal insulation material product prepared from the multifunctional inorganic thermal insulation material composition and a preparation method of the multifunctional inorganic thermal insulation material product. By substantially utilizing industrial and construction wastes as a gel enhancement and inorganic thermal insulation system and adding a little amount of cement as well as a proper amount of regulator, the multifunctional inorganic thermal insulation material composition is molded in a casing mode by one step, thereby forming a wall plate, a block material (wall materials decorated by wall floor tiles) and a roof. Therefore, the wall body, the block material and the roof have the multifunction and the characteristics of thermal insulation, fire prevention, water resistance, freezing resistance, crack resistance, sound insulation, light weight, corrosion resistance, weather resistance, decoration, energy conservation, environmental friendliness, safety, sanitation, work saving, time saving, cost saving and the like.

The invention discloses a polyvinyl chloride (PVC) / ASA alloy, which is prepared by polyvinyl chloride resin, ASA resin and right amount of processing aids. The preparation method includes: mixing uniformly the polyvinyl chloride resin and processing material at 60-120 DEG C, adding ASA resin powders, mixing evenly, dropping the temperature to 43 DEG C, to obtain the mixture; extruding the mixture through a screw extruder to obtain the alloy, wherein, the temperature of the extruder head is 165 DEG C - 185 DEG C, and the revolution speed is 120-160 r / min. Compared with the existing technology, the PVC / ASA alloy prepared by the invention has high impact resistance, weather resistance, fire-retardant, superior synthesized dynamic performance, good processing performance, stable preparation process, non three wastes pollution. The alloy can be formulated into various colors according to requirements, can be produced by screw rod extruding continuous manufacturing method, and can also be produced by extrusion molding and injection molding according to manufacturing requirements of products.

The invention relates to a method for extracting aurum from difficult-to-handle sulphide ore aurum concentrate by two-segment pressurization leaching method comprising two segments of pressurization oxidation preprocessing and pressurization oxidation aurum leaching. The method comprises the steps of: firstly, pressurizing and oxidizing base metal sulfide such as iron sulfide with sulfuric acid-iron sulfate, wherein most S2- and S22- are oxidized into elemental sulfur; and secondly, pressurizing and leaching the preprocessed slag with thiocyanate so that aurum is selectively dissolved in the solution in the form of aurum-thiocyanic acid compound. Therefore, the pre-oxidation slag can be directly leached without neutralization, the technical process is short, the aurum recovery rate is high, the cost is low and pollution of low-concentration SO2 smoke gas, As2O3 smoke dust, and the like is avoided.

The invention provides a concrete releasing agent for an aluminum alloy template of a building. The releasing agent comprises the following components in parts by weight: 8-15 parts of grease, 1-3 parts of fatty acid monoglyceride or fatty acid diglyceride, 2-5 parts of fatty acid, 1-3 parts of resin, 0.05-0.5 parts of basic metal compound, 3-5 parts of inorganic filler and 1-5 parts of solvent. The releasing agent coats the aluminum alloy template of the building and is used in the concrete pouring technology, the concrete releasing quality is good without obvious blister, and the releasing agent residue surface matter is easily removed and the releasing agent is suitable for use for single or multiple times, and the service life of the template is prolonged.

The effervescent health beverage table is featured by that it contains functional oligosaccharide, such as oligo-xylose, oligo-fructose, oligo-galactose, oligo-isomaltose, etc., with bifidobacterium proleferating function and may contain medicine, vitamins, minerals, soluble chitin and other functional factors. The tablet is produced through sieving, mixing, drying at 55-65 deg.c and tableting. The effervescent health beverage tablet, when being thrown into water, will be dissolved instantly into homogeneous beverage, health liquid, medicated tea, etc. while producing bubbles and turning up and down.

The invention discloses a method for recovering metallic copper and zinc from copper smelting ash, comprising the following steps of: by using a NH4Cl-NH3 solution as a leaching agent, leaching copper and zinc from copper smelting ash at normal temperature; after filtering and separating, selectively extracting copper by using an extraction agent LIX-84-IT; after washing load organic phase, back extracting copper by using a solution containing 120-250 g / L of sulfuric acid, wherein the back extraction solution is used for electro-deposition production of copper; performing two-section counter-current replacement of the copper extraction residual solution at normal temperature by using zinc powder; producing metallic zinc from the obtained Zn(II)-NH3-NH4Cl solution through an electro-deposition method; and after preparing the zinc electro-deposition waste solution, returning the leached ash. The method is simple in process and easy to operate. Products are high-value metals, can be sold easily and have other advantages. The method can be used for widely treating various types of copper smelting ashes containing copper and zinc.

The invention provides biological seed pelleting agent with high activity and drought resistance, which is obtained by mixing organic mineral material, water retention agent, agricultural rare earth, microelements, high-activity bio-fungus, pesticide, dispersant, coupler and agglomerant according to a fixed proportion. When pelleting, the pelleting agent is dispersed into colloid that can be sprayed by 3-8 times weight portions of water; seeds are placed in a drying and pelleting machine and then the pelleting agent colloid is sprayed into the drying and pelleting machine to carry out seed pelleting. The seed pelleting agent of the invention has high-activity biological performance, performances of improving soil, soil fertility and synergism as well as powerful function of storing water and drought resistance; the seed pelleting agent comprises a plurality of microelements and nutrient components, which can promote rhizogenesis, sprouting and growth of seeds, improve obviously the germination percentage of seeds and ensure seedlings are uniform and strong, and have a obvious production increasing effect.

The present invention discloses a preparation method of glycine. In the preparation method, chloroacetic acid and ammonia are used as raw materials; urotropine is used as the catalyst of the reaction; low-carbon alcohol solvent is used as a reaction medium; organic amine is added into the reaction system to be used as an acid binding agent; after the reaction is completed, the glycine with high content can be prepared through filtration. The preparation method solves the problems of the solvent that can not be recycled, serious solvent consumption, high cost, low yield, serious three-waste pollution and so on in the prior art. And the preparation method is suitable for the industrial production of the glycine.

The invention provides a highly active biological water preservation slow release compound fertilizer. The special compound fertilizer is prepared by compounding the ordinary fertilizer with microelements, then a certain amount moderate organic minerals, high water-absorbent resins, humic acids, and biological preparation are crushed and mixed into 100 mesh to 350 mesh to obtain compound powder preparation and subsequently the special compound fertilizer is placed into a granulator, and added with water with a mass ratio of 0.1 to 1 to the compound fertilizer. At last, the compound powder preparation is added into the granulator and the obtained mixtures are granulated and dried to obtain the highly active biological water preservation slow release compound fertilizer. The adoption of ordinary nitrogen, phosphor, and potassium as main materials, and mix of croelements according to requirements for soil fertilizer test and plants to adjust the formula, the highly active biological water preservation slow release compound fertilizer can enhance the effective utilization of fertilizer, lower the pollution to soil, and facilitate the growth of vegetables. The application of the product to the agricultural and forestry production can enhance the utilization of fertilizer by above 60 percent and lower the used amount of fertilizer by 50 percent, reduce the pollution to soil, and enhance the yield and quality of crops.

The invention provides a high activity bio-nutritive water retention agent, which adopts super absorbent resin as host crystal, uses 1-10% glycerin solution as surface cross linker, simultaneously compounds 10-20% humate / fulvic acid salt solution and 10% high activity biological bacteria (like EM bacterium fluid) to prepare high activity water retention agent. The invention has relatively high biological activity, and is applied to agriculture and forest industry, and improves production, strengthens effect, protects environment and greatly improves soil-improving ability. The invention adopts compounding biological agents with high activity under acidity condition, which is beneficial for survival and propagation of strains. The invention does not kill strains when dries at low temperature, and is beneficial for dormancy and storage of strains.

The invention discloses a synthesis process of vecuronium bromide. The synthesis process comprises the following steps: generating epiandrosterone sulfonyl ester (III) by carrying out esterification reaction between epiandrosterone (II) and paratoluensulfonylchloride; generating 5Alpha-androst-2-alkene-17-ketone (IV) by carrying out elimination and dehydration reaction between the (III) and 2,6-lutidines; generating 17-acetoxyl-5Alpha-androstane-2,16-diene (V) by carrying out enolization and esterification reaction between the (IV) and isopropenyl acetate; generating (2Alpha, 3Alpha, 16Alpha,17Alpha)-diepoxy-17Beta-acetyl-5Alpha-androstane (VI) by epoxy reaction of the (V) under the effect of hydrogen peroxide; generating 2Beta, 16Beta-di(1-piperidyl)-5Alpha-androstane-3Alpha-hydroxyl-17-ketone (VII) by ring-opening and addition reaction of the (VI) under the effect of hexahydropyridine; generating 2Beta, 16Beta-di(1-piperidyl)-5Alpha-androstane-3Alpha,17Beta-diol (VIII) by the (VII)under the reduction of potassium borohydride; generating 2Beta, 16Beta-di(1-piperidyl)-3Alpha, 17Beta- acetoxyl-5Alpha-androstane (IX) by carrying out esterification reaction of the (VIII) under the acetylation of acetic anhydride; and generating vecuronium bromide (I) by carrying out quaternary ammonium salt reaction between the (IX) and bromomethane. The invention has the advantages of low cost,less pollution and high yield.

The invention discloses a special sustained-release fertilizer for watermelons by using biomass granular carbon as a matrix and a preparation method thereof. Granular carbon prepared from corn cob, peanut hulls, rice hulls, edible fungus substrate and other agricultural waste biomasses is used as a matrix material, and is compounded with nitrogen, phosphor, potassium and other nutritional elements which are necessary to growth and development of watermelon by utilizing the microporosity and strong adsorptivity of the granular carbon to prepare the granular-biomass-carbon-based special sustained-release fertilizer for the watermelons. The biomass granular carbon used in the invention is black biomass granular carbon particles formed after agriculture waste biomass is incompletely combusted in a low-oxygen condition, has multiple properties similar to soil humus, has strong capacities of adsorbing and maintaining nutrition and moisture, and can be used for stimulating crop growth with good sustained release performance to nitrogen, phosphor and potassium, so that the requirement of watermelons for nutritions in the whole growing period can be effectively supplied when the prepared sustained release fertilizer is applied once. Furthermore, the fertilizer has the characteristics of increasing the soil productivity, improving the soil structure along with high efficiency and environmental friendliness and the like, and is advantageous to large-scale popularization and application in watermelon production.

The invention discloses a method for extracting gardenia oil by using a subcritical fluid. The method comprises the following steps: preprocessing a gardenia fruit raw material, and adding a metered amount of the preprocessed raw material to an extraction tank; inspecting the air tightness of the extraction tank, conveying liquid butane into the extraction tank according to a solid / liquid mass ratio of 1:4 in order to carry out extraction, carrying out four-stage extraction on every tank, respectively introducing a second stage extraction liquid, a third stage extraction liquid and a fourth stage extraction liquid to previous stage extraction, and separating a first stage extraction liquid, wherein extraction in each of the four stages is carried out for 2h; and introducing the first stage extraction liquid into an evaporator, carrying out reduced pressure evaporation exsolution to prepare crude gardenia oil, and purifying the crude gardenia oil to prepare a finished product. The method is used to efficiently extract gardenia oil in the gardenia fruit raw material, and has the advantages of low energy consumption, no pollution, high quality, and especially no destroys to natural heat-sensitive oxidizable active components in the gardenia oil.

The invention relates to a dealkalization reutilization method of red mud which is a waste material produced by an alumina plant, which belongs to the technical field of chemical industry and environmental protection. The process comprises the following steps: (1) firstly baking the red mud in a muffle furnace, removing crystallization water in the red mud, and further smashing and grinding the red mud into powder; (2) placing the red mud powder after pretreatment in a dealkalization reactor, adding water, fully stirring and mixing into slurry; (3) introducing CO2 into the slurry-like red mud, and carrying out gas-liquid-solid three-phase dealkalization reaction; and (4) carrying out centrifugal separation on clarifying solution and solid residue after the reaction is finished and obtaining the red mud after the dealkalization. The method can realize the sustainable comprehensive reutilization of the waste; compared with the traditional quicklime dealkalization process, the CO2 suspension process has the advantages of simple operation, high dealkalization rate, high alkali purity of the obtained product, no emission of the wastes and the like; and the whole process can realize the closed loop circulation, and the reaction process does not produce the pollution of three wastes, thereby belonging to a green, environment-friendly and clean production process.

The invention discloses a special slow-release fertilizer taking biomass granular carbon as a matrix for tea trees and a preparation method thereof. Granular carbon prepared from agricultural abandoned biomass such as corncobs, peanut shells, rice husks and edible mushroom matrixes, taken as a matrix material, is compounded with nitrogen, phosphorus, potassium and other nutrient elements essential to the growth and development of the tea trees by utilizing the microporous character and strong adsorption capacity of the granular carbon, so that the special slow-release fertilizer taking the biomass granular carbon as the matrix for the tea trees is prepared. According to the invention, the biomass granular carbon is black biomass granular carbon particles formed after incomplete combustion of the agricultural abandoned biomass under a hypoxic condition, has various properties similar to those of soil humus, is very strong in capacity of adsorbing and maintaining nutrients and moisture, and furthermore, and has an effect of stimulating the growth of crops and a good slow-release performance for the nitrogen, phosphorus and potassium; the slow-release fertilizer prepared in such a way can effectively meet the requirements of the tea trees for nutrients in the whole growth period after being applied once; and in addition, the special slow-release fertilizer has the characteristics of enhancing the soil fertility, improving the soil structure, being efficient and environmentally-friendly, and the like, thereby being beneficial to large-scale popularization and application in tea tree production.

The invention provides a polymerizable salicylic aldehyde complex containing a quaternary ammonium salt in a molecular structure. The polymerizable salicylic aldehyde complex containing the quaternary ammonium salt can be used for copolymerization reaction on styrene, acrylic ester, acrylonitrile, vinyl acetate or acrylic amide to form series resin with a macromolecular side chain bonded with two sterilizing and antibacterial substances including a salicylic aldehyde complex and the quaternary ammonium salt; and the resin and inorganic ions in seawater are subjected to ion exchange reaction to sequentially release the two sterilizing and antibacterial substances including the salicylic aldehyde complex and the quaternary ammonium salt, so as to generate the effect of preventing pollution on marine organisms and the surface layer self-cleaning effect.

The invention discloses an organic-inorganic multifunctional water-retaining agent for resisting saline and alkaline and a preparation method of the organic-inorganic multifunctional water-retaining agent. The organic-inorganic multifunctional water-retaining agent for resisting saline and alkaline is characterized in that the formula of the water-retaining agent includes humic acid, crylic acid, industrial starch, additives and attapulgite which are taken as raw materials, and a crosslinking polymerization process is adopted for preparing the organic-inorganic multifunctional water-retaining agent. According to the water-retaining agent, inorganic minerals, the attapulgite and organic minerals, namely humic acid are adopted to improve the saline-alkaline resistance, and simultaneously, trace elements such as nitrogen, phosphorus and potassium necessary for the growth of plants are provided, so that the double functions of water retaining and nutrient elements providing can be met by applying the water-retaining agent, further, the multiple functions are endowed to the water-retaining agent, and the requirements of forest planting in high saline-alkaline and barren soils in western area can be met.

The invention relates to polyamide-epichlorohydrin resin sticking cylinder agent, which is used for a crinkling technique in producing tissue paper. The method of the invention comprises: taking polyamine and secondary lipid as raw materials, taking water, carbinol and ethanol as dissolvant (or not adding the dissolvent), adding little amount of activator for catalyze reaction to generate polyamide prepolymer, then, reacting with the epichlorohydrin under certain acidity-alkalinity and under the condition that stabilizing agent is existed and the temperature is 60-80DEG C, generating polyamide-epichlorohydrin resin, adjusting the pH value, cooling and discharging materials, and obtaining the polyamide-epichlorohydrin resin sticking cylinder agent. The sticking cylinder agent product of the invention has stable performance and can improve the crinkling unevenness in the crinkling technique and paper cutting phenomenon in the crinkling process when in use.

The invention discloses a medical ultrasonic sterilization couplant, which is prepared from the following components in part by weight: sodium hydroxide 5-20, glycerol 150-450, ethylparaben 2-9, carbomer 10-50, chlorhexidine hydrochloride (CHX-HCL) 0.2-0.8, ethylene diamine tetraacetic acid (EDTA) 0.3-1.2, and distilled water 725-2,000. The couplant has a good acoustic matching and coupling function, avoids corroding and swelling ultrasonic probes, has disinfection and sterilization functions, avoids stimulating and sensitizing skin mucosae and can realize synchronous, quick and continuous disinfection and sterilization of the ultrasonic probes and the skin mucosae and effectively reduce potential intra-hospital cross infection risks caused by the contact of the ultrasonic probes (therapeutic heads) with human bodies in medical supersonic inspection and treatment processes. The couplant is applicable to trans-skin mucosa, transvaginal and transrectal ultrasonic diagnosis and treatment.

The invention relates to a cleaning production process of glycine. According to the method, a mixed solution of glycine and ammonium chloride is produced on the basis of a chloroacetic acid ammonolysis method and glycine and ammonium chloride are separated by an electroosmosis method. The cleaning production process has the following advantages: 1, based on the traditional chloroacetic acid ammonolysis, the electroosmosis technology is carried out without chemical reaction or addition of any raw material, so the prepared product is good in quality and high in yield; 2, no byproduct is generated, no three wastes pollution is caused, the situation that a large quantity of wastewater rich in chlorine formaldehyde is generated in the traditional process can be avoided; and 3, diluted liquid and concentrated liquid can be recycled in the electroosmosis process, thereby saving the production cost of glycine.

The invention discloses organic-inorganic compound fertilizer particles and a preparation method thereof. The organic-inorganic compound fertilizer particles comprise the following components in parts by weight: 25-45 parts of powder, 25-35 parts of plant ash and 5-10 parts of adhesive and the balance of one or several of a nitrogen fertilizer, a phosphate fertilizer, a potash fertilizer and trace-element fertilizers, wherein the powder is generated by performing microbiological treatment on kitchen wastes; the plant ash is prepared by combusting crop straws, drying, milling and screening. The organic-inorganic compound fertilizer particles are granular; because the inorganic fertilizer is coated with the fertilizer particles, and the plant ash has a good adsorption effect, so that the nutrient release speed is low, and the organic-inorganic compound fertilizer particles have a certain slow release benefits.

The invention discloses a special slow-release fertilizer taking biomass granular charcoal as a matrix for hot pepper and a preparation method for the same. The preparation method comprises the following steps of: taking the granular charcoal which is prepared from the agricultural waste biomasses of corncobs, peanut shells, rice hulls, edible fungi matrix and the like as a matrix material, compounding the matrix material with nitrogen, phosphorus, potassium and other nutrient elements which are necessary to the growth and development of hot pepper by virtue of the microporous property and the strong adsorption capacity of the matrix material, and then preparing the granular biomass charcoal-matrix special slow-release fertilizer for hot pepper. The biomass granular charcoal used in the preparation method disclosed by the invention is the black biomass granular charcoal granules formed by the agricultural waste biomasses after incomplete combustion in a low-oxygen condition, has various characteristics similar to the characteristics of soil humus, as well as is very strong in the capacities of adsorbing and keeping nutrients and water, capable of stimulating the growth of crops, and good in slow-release performance for nitrogen, phosphorus and potassium; and the slow-release fertilizer prepared from the biomass granular charcoal can effectively meet the need of hot pepper to nutrients in the whole growing period in case of being applied once, and has the characteristics of enhancing soil fertility, improving soil structure, being efficient and environment-friendly and the like, thus being beneficial to large-scale popularization and application in production for hot pepper.

The invention discloses a special slow-release fertilizer taking biomass granular carbon as a matrix for apples and a preparation method thereof. Granular carbon prepared from agricultural abandoned biomass such as corncobs, peanut shells, rice husks and edible mushroom matrixes, taken as a matrix material, is compounded with nitrogen, phosphorus, potassium and other nutrient elements essential to the growth and development of the apples by utilizing the microporous character and strong adsorption capacity of the granular carbon, so that the special slow-release fertilizer taking the biomass granular carbon as the matrix for the apples is prepared. According to the invention, the biomass granular carbon is black biomass granular carbon particles formed after incomplete combustion of the agricultural abandoned biomass under a hypoxic condition, has various properties similar to those of soil humus, is very strong in capacity of adsorbing and maintaining nutrients and moisture, and furthermore, and has an effect of stimulating the growth of crops and a good slow-release performance for the nitrogen, phosphorus and potassium; the slow-release fertilizer prepared in such a way can effectively meet the requirements of the apples for nutrients in the whole growth period after being applied once; and in addition, the special slow-release fertilizer has the characteristics of enhancing the soil fertility, improving the soil structure, being efficient and environmentally-friendly, and the like, thereby being beneficial to large-scale popularization and application in apple production.

The composite high-effective energy-saving heat-insulating material comprises the following components: aluminium silicate fibre, glass fibre, quick T, sepiolite, brucite, expansive pearlite, piaozhuor diatomite, bentonite, catalyst and adhesive. Its production method includes the following steps: placing the soaked aluminium silicate fibre, glass fibre and quick T into stirring machine to obtain slurry material, adding sepiolite and brucite, then adding expansive pearlite and piaozhu, adding bentonite, catalyst and adhesive, stirring them to obtain paste-like finished product, pipe blank and wall plate blank material respectively.

The invention discloses a preparation method of situ Al2O3-particle reinforced Al-Si-Cu composite material semi-solid slurry, which comprises the steps of: firstly, putting an Al-Si-Cu alloy ingot into a melting furnace, heating to 780-800 DEG C, and standing still for 20-30min at the temperature of 780-800 DEG C; drying mixed powder obtained by carrying out ball milling and crushing on Al powder and B2O3 powder which have the mass percent of 1.0-5.0%, and covering the dried mixed powder with aluminium foil; adding the mixed powder covered with the aluminium foil into melt, and carrying out heat preservation for 10min; then, stretching an ultrasonic amplitude transformer bar into alloy melt, and carrying out ultrasonic treatment for 10-20min, wherein the ultrasonic power is 150-300W; then, quickly cooling to 580-590 DEG C, and carrying out heat preservation for 10-20min; and finally, obtaining the situ Al2O3-particle reinforced Al-Si-Cu composite material semi-solid slurry. The preparation method has the technical effects that the obtained situ Al2O3-particle reinforced Al-Si-Cu composite material semi-solid slurry is well formed and rounding, fully meets the requirement of semi-solid formation, and is simple in technology, safe and reliable, convenient to operate and free from three-waste pollution.

The invention discloses a slow release fertilizer special for sweet potatoes by using biomass granular carbon as a matrix and a preparation method for the slow release fertilizer. Granular carbon prepared from agricultural wastes such as corn cobs, peanut shells, rice hulls and edible fungi matrix are used as a matrix material; and based on the micro-pores and strong adsorption capability of the matrix material, the granular biomass carbon-based slow release fertilizer special for the sweet potatoes is prepared by compounding the matrix material and nitrogen, phosphorus, potassium and other nutritional elements required by growth and development of the sweet potatoes.. The biomass granular carbon is black biomass granular carbon granules formed after the agricultural waste biomass is incompletely burnt under the low-oxygen condition, has multiple properties similar to soil humus and strong adsorption and nutrient and moisture holding capabilities, can stimulate growth of crops, and has good slow release performance on nitrogen, phosphorus and potassium; when the prepared slow release fertilizer is applied at one time, the requirements of the sweet potatoes for nutrients in the whole growth period can be effectively met; and the slow release fertilizer has the characteristics of increasing soil fertility, improving the structure of soil and realizing high efficiency and environment friendliness, and is beneficial to large-scale popularization and application in the production of the sweet potatoes.

The invention provides a functional monomer for preparing a heavy metal ion imprinted polymer, which is a monomer with a molecular structure containing three functional units of quaternary ammonium salt, Schiff base complex and polymerizable double bond, can perform a self-polymerization reaction, also can perform a copolymerization reaction with styrene, acrylic ester, acrylonitrile, vinyl acetate or acrylamide, and is used for preparing an ion imprinted polymer material with a function of identifying, detecting and separating heavy metal ions.