55results about How to "Not poisonous" patented technology

The invention belongs to the technical field of agricultural cultivation and discloses a full-seedling and strong-plant cultivation method for corn. The cultivation method comprises steps as follows: seed selection and coating, furrowing and bedding, returning of straw to field, layered fertilization, precision sowing, chemical weeding and film mulching, final singling at suitable time and field management. According to the method, furrows are dug between corn sowing rows in a un-fallowing and no-tillage ridged field, bottom layers of dressing furrows are covered with chopped straw, the straw can prevent upper-layer fertilizer from leaking down, the decomposed straw becomes fertilizer and can be absorbed and used by corn roots, isolation is performed with loam for layered fertilization, and one-time fertilization can be used by the corn in the whole growth period; holes are dug in rows in a sowing region, two healthy, full and vigorous corn seeds are sown in each hole for final singling at suitable time; the fertilization region is covered with a mulch after chemical weeding, and the temperature under the mulch is higher than the subsurface temperature of the corn sowing region, so that fertilizer and water under the mulch slowly permeate soil in the corn sowing region, full-seedling, strong-seedling and strong-strain of the corn are realized, and the basis for increasing the corn yield is consolidated.

The invention relates to an environment-friendly waterborne aerosol paint and a preparation method thereof. The environment-friendly waterborne aerosol paint contains the following components in parts by mass: 35-80 parts of waterborne resin, 0.01-10 parts of hyper-dispersant, 1-20 parts of pigment, 0.1-2 parts of defoaming agents, 10-40 parts of cosolvent and 10-50 parts of propellant. The environment-friendly waterborne aerosol paint adopts the special waterborne resin and has low VOC content, small toxicity and less pollution to the atmosphere. In addition, the environment-friendly waterborne aerosol paint is convenient to carry and simple in operation by adopting an aerosol package, has all the advantages of a solvent based aerosol paint and is safer and more environment-friendly.

The invention belongs to the technical field of chemical engineering and provides a hydrogen production reaction with the controllable hydrogen production speed to solve the problem that the hydrogen production rate is affected due to different degrees of alkalinity in a traditional aluminum water hydrogen production method and the problem that manual control cannot be achieved due to the high hydrogen production speed generated when PH is too high.The hydrogen production reaction includes the process that a hydrogen production agent generates a hydrolysis reaction under the effect of a solid catalyst.The alkaline solid catalyst is added in the process of mixed hydrogen production of a hydrogen-from-aluminum agent and a sustained-release agent, the hydrogen production rate and time period can be effectively controlled, and hydrogen is generated at a uniform speed for use.

The invention discloses a preparation method of a high-efficiency chromium-removing composite absorbent. The preparation method comprises the following steps of: adopting red mud and montmorillonitic clay as raw materials, adding water and soluble starch, fully and uniformly stirring, granulating, molding, and drying; and roasting for 0.5-2 hours at the temperature of 550-650 DEG C. The preparation method disclosed by the invention has the advantages that the high-efficiency water-body chromium-removing composite absorbent is prepared by adopting industrial waste red mud and montmorillonitic clay as raw materials and adopting simple granulation and roasting, the production process is simple, the production cost is low, and no harmful gas and sewage are produced in the production process. The prepared absorbent has the advantages that the affinity to water-body chromium is high, the absorbing efficiency is high, toxicity and harm can not be generated to a water body and aquatic organisms, the removal from the water body is convenient after use, the recovery is easy in the use process, and the blocking to equipment can not be caused, so that the purposes of removing the water-body chromium in a high-efficiency manner and simultaneously carrying out recycling on waste are achieved.

The invention provides salt containing carotene and iodine and a processing method thereof for solving the technical problems, so that people can get vitamin A conveniently. The salt containing the carotene and the iodine comprises the iodine, the salt and the carotene in a weight ratio of 20-60: 900,000-1,200,000: 1-500. The salt containing the carotene and the iodine is prepared by adding the carotene into the salt so as to provide a substance for people to take the carotene. The carotene, which is a precursor of the vitamin A, can be converted into the vitamin A according to the requirement of a human body under the catalysis of in vivo enzyme, without a poisoning phenomenon caused by the excessive intake of the vitamin A. The edible salt containing the carotene and the iodine is a new approach for supplementing the vitamin A.

The invention belongs to the field of chemical materials, and particularly relates to a concentrated high-efficient fire extinguishing agent and a preparation method thereof. The concentrated high-efficient fire extinguishing agent is prepared from the following raw materials: urea, ammonium chloride, ammonium sulfate, sodium bicarbonate, potassium carbonate, a sodium silicate gel solution, ethylene glycol, ammonium polyphosphate, a surfactant, a foaming agent and water. The fire extinguishing agent is fewer in raw materials, low in cost, high in fire extinguishing grade, wide in application range and good in anti-reflash performance; the fire extinguishing agent is low in freezing point, so that the freezing point is applicable to the low-temperature environment of the northeast area; the fire extinguishing agent is concentrated, and before use, the fire extinguishing agent is mixed with water according to a ratio of 1:16 and can extinguish fires of 2A and 89B, so that the fire extinguishing agent occupies small space when being stored conventionally; and the fire extinguishing agent is soluble in water, so that a uniform solution state can be reached immediately after the fire extinguishing agent is mixed with water.

The invention relates to an antimicrobial macromolecule with biocompatibility. The antimicrobial macromolecule with biocompatibility comprises a macromolecular framework, an antimicrobial functional group branched chain and a biocompatibility functional group branched chain. The antimicrobial functional group branched chain and the biocompatibility functional group branched chain are grafted on the macromolecular framework, and the molar ratio of the antimicrobial functional group branched chain to the biocompatibility functional group branched chain is 1,000:1 to 1:1,000. The grafting rate of the antimicrobial functional group branched chain is 0.001%-99.999%. The prepared antimicrobial macromolecule with biocompatibility has the advantages of selectively resisting microorganisms and having no toxic and side effects on animal organism cells and tissue, resists microorganisms in a broad-spectrum, efficient and longlasting manner, has inhibiting and killing effects on gram positive bacteria, gram negative bacteria, fungi, mould, viruses and the like, and is suitable for large-scale application in various relevant fields such as the disinfection antimicrobial field.

The invention discloses a process for cleaning an optical resin lens substrate and a forming mould. The process includes the steps of cleaning liquid preparation, ultrasonic cleaning, ultrasonic rinsing, drying and the like. The cleaning liquid is prepared by adding, in weight percent, 1-10% of alkyl sodium sulfonate, 1-5% of TX-10 and 1-5% of citric acid into sodium hydroxide with the concentration of 1-10% after mixing, neutralizing the mixture to reach the pH (potential of hydrogen) value ranging from 7 to 7.5, and adding water to reach 100%. The cleaning liquid is high in cleaning strength, dirt such as resin, adhesive, fingerprint, grinding residue and the like adhered to the surface of the resin lens substrate or the forming mould can be rapidly removed, the surface of the substrate or the forming mould is not damaged, water solution in the cleaning liquid can be reused, and the cleaning liquid is fine in economical efficiency, safe in use, simple in discharge, environment-friendly, non-corrosive, non-volatile, non-hazardous and non-combustible.

The invention provides a high-efficiency and low-toxicity composite bird repellent containing thiram and dimethyl phthalate. The composite bird repellent contains active components of thiram and dimethyl phthalate, wherein the mass ratio of the thiram to the dimethyl phthalate is (4: 1)-(1: 20). The composite bird repellent has a very good bird repelling effect; and the thiram and the dimethyl phthalate have an obvious synergistic effect, have no direct bird killing capability and have low toxicity to humans and other mammals, so that the composite bird repellent is long in lasting effect and safe to crops, and can effectively reduce damage of birds to field crops, orchards and the like.

The invention provides a non-chromium conversion solution for magnesium alloy surfaces which takes the water as the solvent. Each liter of the solution comprises: water-soluble cerium salt of 1 to 15g, nitrate of 2 to 12g and ammonium sulfate of 2 to 12g. For the process using the non-chromium formation solution to make surface treatment to the magnesium alloy, the process flow is as follows: degreasing, bath, acid activation, pure bath, surface conditioning, pure bath, conversion treatment, pure bath and drying; wherein, the concrete procedures of the conversion treatment in the process flow are that: the magnesium alloy workpiece made a pre-treatment is dipped into the non-chromium conversion solution for treatment, the working temperature of the workpiece is between 20 and 85 DEG C, the conversion treatment time is between 20 seconds to 5 minutes. With the non-chromium conversion solution for magnesium alloy surfaces of the invention and the conversion process thereof, the obtained membrane has good corrosion resistance, can meet the requirement of environmental protection, has low raw material cost, is simple and easy to obtain, has the formula without heavy metal ions and phosphor elements as well as simple waste water treatment.

The invention belongs to the technical field of biological medicine, in particular relates to a method for preparing an antidiabetic preparation by taking cinnamon as the raw material. The method comprises the following steps: pulverizing cinnamon, extracting the pulverized cinnamon with an ester soluble solvent, or boiling the pulverized cinnamon with water or a water-ethanol solution, then extracting with the ester soluble solvent, dissolving safrole as a toxic component in the ester soluble solvent, and distilling the extracted cinnamon powder or the extracted solution to acquire a powdery substance, i.e. the antidiabetic preparation.

The invention discloses a novel solar head lamp. The novel solar head lamp comprises a rechargeable lithium battery and a head lamp holder with a bulb, wherein the rechargeable lithium battery is installed in a battery box, the battery box is provided with a solar panel which is electrically connected with lithium battery, the lithium battery is connected to the bulb in the head lamp holder by virtue of a circuit board, an electric wire and a switch button, and a head strap is installed between the battery box and the head lamp holder; a dimming ring is installed on the head lamp holder; a signal lamp which is connected with the circuit board and the rechargeable lithium battery is installed on the battery box; the rechargeable lithium battery is a soft-packaged battery. The novel solar head lamp has the beneficial effects that the practicability is realized, the production cost is low, the charging way is diversified, the use is convenient, convenience in carrying is realized, and the use is safe.

The invention discloses a method for preparing a graphene capsaicin synthetic boat bottom paint. The components include: 10-12 parts of graphene, 10-16 parts of capsaicin, 20-23 parts of acrylic resin, and 5-6 parts of chlorinated paraffin 6-8 parts of xylene, 20-28 parts of talcum powder, 13-15 parts of zinc yellow, 3-5 parts of additives; among them, graphene has high strength, wear resistance, self-lubrication and excellent conductivity characteristics, can greatly increase the wear resistance of ship bottom paint; capsaicin is a stable alkaloid; it is not affected by temperature, and has the function of antibacterial and repelling marine attached organisms; compared with chemical coating additives, spicy It will not poison attached organisms, cause biological variation, and will not destroy the marine food chain or cause sea water pollution; and it has good matching properties when mixed with acrylic resin, chlorinated paraffin, xylene, talcum powder, and zinc yellow. Good adhesion and compatibility.

The invention provides a mousetrap which comprises a closed box. An air inlet of an induced draft fan is connected in the box. An air outlet of the induced draft fan is located outside the box. A sucking pipe is further connected to the box. When the mousetrap is used, the induced draft fan is started, the sucking pipe is inserted into a mouse cave, and mice can be sucking into the box through negative pressure. When a certain amount of mice are captured, a gate can opened to pour the captured mice out for centralized processing.

The invention discloses a preparation method for a moisturizing lipstick containing shikonin liposomes. The formula comprises 9-11% of shikonin liposomes, 48-52% of component A, 25-28% of oil-based component B, 6-9% of water, 0.5-1% of polysaccharide and 4-6% of emulsifiers. The preparation method comprises the steps that (1) the shikonin liposomes are prepared; (2) the component A is prepared, specifically, the component A is selected from a waxy component and / or an oil-based component A; (3) the component A and the shikonin liposomes are heated and mixed in proportion to obtain a mixture A;(4) the oil-based component B is prepared; (5) an aqueous moisturizer is prepared, specifically, the aqueous moisturizer is a mixture of the water and the polysaccharide; (6) the emulsifiers are prepared; (7) the oil-based component B and the aqueous moisturizer are slowly stirred and mixed, the emulsifiers are added and stirred uniformly, a stabilizing emulsion is obtained, and the temperature ismaintained at 75-85 DEG C to obtain a mixture B; (8) the mixture A and the mixture B are mixed and stirred uniformly; and (9) the mixture obtained in the step (8) is subjected to injection molding at75-85 DEG C and cooled to room temperature for demoulding to obtain a product.

An organic-selenium-rich edible mushroom production method is characterized in that firstly, wheat is subjected to slight germination (the technical term is sprout reveal) in a selenium-rich environment and turned into organic-selenium-rich malt; then, the organic-selenium-rich malt is dried and processed into flour, and meanwhile selenium-rich bran is obtained; then, the obtained selenium-rich bran serves as a raw material for producing selenium-rich edible mushrooms; the selenium-rich bran (or the selenium-rich malt) replaces common bran (or wheat) commonly used in an edible mushroom culture medium formula, a small amount of inorganic selenium in the selenium-rich bran is converted into organic selenium through the selenium enriching capability of edible mushrooms, and thus organic-selenium-rich edible mushrooms are obtained. By means of the organic-selenium-rich edible mushroom production method, the selenium-rich edible mushrooms can be produced, and meanwhile selenium-rich flour can be produced; as part of starch can be decomposed in the germination process of wheat, certain active enzymes can be generated, certain vitamins can be synthesized, and the nutrient ingredients of produced selenium-rich flour are optimized to a certain degree.

The invention provides a heavy metal relative-inactivation treating agent which relates to the innocent treatment and the resource recycling of organic waste materials. The finishing agent comprises plant ash, quicklime, sodium hydroxide, potassium hydroxide and brown sugar. The treating agent has the advantages of no toxicity, high efficiency and no environmental pollution. The invention also provides a use method of the heavy metal relative-inactivation treating agent.

The invention relates to the field of agriculture, in particular to a selenium-rich and high yield cultivation method of macadamia ternifolia. During planting of the macadamia ternifolia, organic selenium and sodium selenite are added reasonably and proportionally, adequate selenium supplement for macadamia terinifolia seedlings is achieved, growing speed is increased, dosage of sodium selenite isstrictly controlled, and the macadamia ternifolia seedlings are not toxic to sodium selenite. AM (arbuscular mycorrhizal) fungi is inoculated to the seedlings, conversion and utilization of seleniumin the macadamia ternifolia are facilitated, the macadamia ternifolia is enabled to absorb and convert more selenium, resistance of the macadamia ternifolia to adversities of low temperature, drought,salinity and the like is improved, and yield of the macadamia ternifolia is increased; the macadamia ternifolia obtained from the planting method has the advantages that content of various nutrientsin fruit is increased, and selenium, in particular, is increased dramatically; with the planting method, the yield of the macadamia ternifolia can be effectively increased, and content of organic selenium in the macadamia ternifolia is increased.

The invention discloses a breeding method for a masked civet. According to the method, a basic selenium-added diet is adopted and combined with health supplements and nutritional additives to feed themasked civet, the breeding rate and survival rate of the masked civet are improved, the meat quality is improved, the growth performance of the masked civet is improved, and the economic benefits areincreased. The selenium-added basic diet is composed of paper mulberry leaf powder, fructus toosendan fruit extract, corn, brown rice, bran, soybean straw, bone meal, rapeseed meal, tomato, vinasse,fish meal, black soya bean, salt, selenium methionine, and selenium cystine.

The invention discloses a device and a method of safely and accurately testing the dust content of a blast furnace gas. A sampling tube is a stainless steel pipe with a head obliquely cut at a 45 degree angle and is inserted to the middle of a tested gas pipeline, the oblique cut position is located at the center of the tested pipeline, and the data tested in a gas flow steady state are the most accurate; a sampling device is composed of an inlet ball valve, a check valve, a filter box, a pressure reducing valve, a flow meter, a bypass ball valve check valve and the like, is integrated in a stainless steel casing and is portable; in the case of testing, the pressure reducing valve keeps the gas pressure at the testing tool part high, no large pressure difference exists before and after thefilter paper, and the filter paper is ensured to completely absorb the dust in the gas without being damaged; a gas discharge port is placed downwind far away from a tester, thereby not causing gas poisoning of the tester; and the weight of the filter paper is measured by a precision analytical balance, the gas flow rate is also recorded, and the actual dust content in the blast furnace gas can be accurately and objectively reflected.

Capsaicine antifouling paint is characterized by comprising the following components in parts by mass: 16-31 parts of a binder, 4-8 parts of a plasticizer, 23-42 parts of pigment and filler, 1-10 parts of capsaicine, 2-4 parts of an anti-settling agent and 11-20 parts of a solvent. Compared with the prior art, capsaicine is extracted from natural capsicum annuum as an antifouling agent, so that the capsaicine antifouling coating is not influenced by temperature, and has good functions of resisting bacteria and expelling marine attached organisms. Compared with other chemical coating additives,the capsaicine antifouling coating does not poison attached organisms to cause biological variation, and does not destroy a marine food chain or cause seawater body pollution. In addition, the capsaicine antifouling paint is good in storage stability and has good matching performance with other antirust paints and the like.

A technical solution adopted by the invention is a preparation method for bisphenol fluorine. The preparation method comprises the following steps of adding phenol, 9-fluorenone and cysteamine into a container, a molar ratio of phenol to 9-fluorenone being 4-10 :1; dropwise adding concentrated sulfuric acid with stirring at a temperature of 30 DEG C; reacting for 3-12 hours with stirring under a temperature of 50-60 DEG C after the concentrated sulfuric acid is completely added; adding a proper amount of water after the reaction; neutralizing with liquid caustic soda; separating an oil layer for recovering phenol; and then recrystallizing with a mixed solvent of ethanol and water. The preparation method is mild in reaction conditions and simple in process; cysteamine is safe and has no smell during the use process, and can not cause worker poisoning or air pollution; a product has high quality and high yield; and the preparation method has high economical efficiency and is suitable for large-scale production. The product is determined by nuclear magnetic resonance.

The invention discloses an intensified cultivation method of parent koi fishes. The intensified cultivation method comprises the steps of 1, selection of a parent fish pool; 2, cleaning and water fertilizing for the pool; 3, selection of the parent fishes; 4, preparation before putting of the parent fishes into the pool; 5, intensified cultivation; 6, daily management; 7, gonad development and regulation. According to the intensified cultivation method, adopted pool cleaning chemicals contain natural ingredients, and the killing effect is significant; utilized organic fertilizer is simple in formula and easy to obtain, and rich plankton can be generated in the fish pool within a short term, and can serve as food for the parent koi fishes in the early stage and inhibit the reproduction and growth of harmful organisms. According to the method, by controlling the feed putting amount according to seasons, the types of the put feed and the content of nutritional ingredients of the put feed are adjusted at the same time, length and weight increase of the parent koi fishes can be sufficiently facilitated, and the stress resistance of the koi fishes is improved; by adjusting the water temperature and illumination intensity acceptable to fish bodies, the gonad development of the parent koi fishes and the stability of the water environment are promoted.

The invention discloses a solar charging head lamp which comprises a charging lithium battery and a head lamp holder with a bulb. The charging lithium battery is installed in a battery box. The battery box is provided with a solar battery panel connected with the charging lithium battery. The charging lithium battery is connected with the bulb in the head lamp holder through a circuit board, a wire and a switch button. A head belt is installed between the battery box and the head lamp holder. A dimming ring is installed on the head lamp holder. The battery box is provided with a signal lamp connected with the circuit board and the charging lithium battery. The charging lithium battery is a flexible package battery. The solar charging head lamp has the advantages of being practical, low in production cost, capable of being charged in multiple ways, convenient to use and carry, and safe to use.

The invention discloses a microbial fertilizer for improving acid soil and improving fertility and a preparation method of the microbial fertilizer. The fertilizer comprises 120-150 parts of common farm manure, 1-2 parts of rock phosphate powder and 10-12 parts of nutritional powder preserved with targeted microorganisms. The nutritional powder preserved with the targeted microorganisms comprises the following components in parts by weight: 3-4 parts of nutritional powder preserved with acid-resisting H6 bacillus sphaericus, 4-5 parts of nutritional powder preserved with white-rot fungi and 3-4 parts of nutritional powder preserved with streptomyces albus. The invention further discloses a method for screening and cultivating three effective microorganisms. The method comprises the following specific steps: screening and cultivating the acid-resisting H6 bacillus sphaericus; screening and cultivating the white-rot fungi; screening and cultivating the streptomyces albus; and proportioning and preparing the fertilizer. The microbial fertilizer can improve an acid environment and improve fertility of the soil; functions of various effective microorganisms are complemented; the comprehensive treatment effect is good; and treatment efficiency lasting time is long.

The invention provides a vanadium-doped iron-based low-temperature denitration catalyst as well as a preparation method and application thereof, and relates to the technical field of catalytic materials. The iron oxide and the vanadium oxide in the vanadium-doped iron-based low-temperature denitration catalyst cannot react with water and sulfur, and in the catalytic reduction reaction process of nitric oxide, generated ammonium hydrogen sulfate can be decomposed by the catalyst, so that catalyst poisoning cannot be caused; in addition, due to doping of the V element, the surface acidity of the catalyst can be improved, the oxidation-reduction capacity of the catalyst is improved, an electron synergistic effect also exists between the vanadium oxide and the iron oxide, and the activity of the catalyst is improved. The embodiment show that the performance of the catalyst still remains unchanged when the catalyst continuously operates for more than 12 hours in the presence of H2O and SO2, and the conversion rate of nitrogen oxides still reaches up to 100%, so that the catalyst has relatively high stability and catalytic activity.

The invention relates to a vegetal household mildew removing agent and belongs to vegetal mildew removing bactericides. The vegetal household mildew removing agent mainly solves the problems that known indoor mildew removing agents are mostly formed by chemical substances and are strong in irritation, poor in environment protection and unfavorable for human health and environmental safety. The mildew removing agent comprises, by weigh, 3-40 parts of plant extract, 0.05-5 parts of stabilizer, 0.05-5 parts of surfactant and 50-85 parts of deionized water which are made into the household mildew removing agent solution. Main raw materials of the vegetal household mildew removing agent are natural plant extracts and are low in prices, simple and easy to obtain, and the mildew removing agent is aqueous solution, is non-toxic and free of stimulation and does cause any poison or pollution to the human body and the environment. Mildew removing is performed on furniture in a living room, floors, kitchen and toilet products, windows and wall surfaces in a chemical liquid spraying mode. The vegetal household mildew removing agent solves the problems that existing mildew removing agents are poor in environment-friendly performance and unfavorable for human health, and can not only achieve broad-spectrum efficient strong mildew removing effect, but also have effect of preventing mildew of the furniture.

The invention relates to a post-treatment system, a desulfurization device thereof, a control method and a storage medium. The desulfurization device comprises a renewable sulfur trap, a storage type sulfur trap and a first three-way valve, and the renewable sulfur trap and the first three-way valve are sequentially arranged at the upstream of a main post-treatment device along the exhaust flow direction. An inlet of the first three-way valve communicates with an outlet of the renewable sulfur trap, a first outlet of the first three-way valve communicates with an inlet of the main post-treatment device, a second outlet of the first three-way valve is connected with a bypass pipeline, and a storage type sulfur trap is arranged on the bypass pipeline. According to the desulfurization device, the toxicity to the main post-treatment device during regeneration of the renewable sulfur trap can be avoided, the regeneration interval of the renewable sulfur trap does not need to be prolonged, the volume of the renewable sulfur trap does not need to be increased, and the exhaust back pressure is not influenced during non-regeneration; and the storage type sulfur trap is only used for trapping sulfide released during regeneration of the renewable sulfur trap, so that the storage type sulfur trap is long in service life and does not need to be frequently replaced.

The invention discloses composite organic pesticide. The composite organic pesticide comprises the following raw materials in parts by weight: 11-25 parts of pine needles, 16-31 parts of radix scutellariae, 22-29 parts of thick-fruited millettia seeds, 31-42 parts of ethanol, 19-31 parts of herb of common herons bill and 8-17 parts of folium artemisiae argyi. The composite organic pesticide has the advantages that the pesticide is good in sterilizing effect, does not pollute the environment, does not poison human bodies and animals, does not harm natural enemies, does not induce pesticide resistance, and is safe and environmentally friendly.

The invention relates to the field of feed, in particular to a trace element premix for ducks and a preparation method of the trace element premix as well as feed. The trace element premix for the ducks is mainly prepared from the following components in parts by weight: 30 to 150 parts of manganese sulfate, 120 to 250 parts of manganese methionine, 50 to 150 parts of glycine zinc, 30 to 200 partsof zinc lactate, 60 to 150 parts of ferrous sulfate, 20 to 35 parts of carbonyl iron powder with mass percent of 96 percent, 15 to 50 parts of copper sulfate, 10 to 30 parts of 0.2 percent selenium yeast, 0.2 to 0.6 part of sodium selenite, 0.6 to 1.2 parts of cobaltous sulfate, 0.6 to 2.0 parts of calcium iodate, 1 to 6 parts of a stabilizer and 250 to 570 parts of carrier. According to the preparation method of the trace element premix disclosed by the invention, organic and inorganic trace elements are reasonably proportioned, nutrition of trace elements is efficiently balanced, the absorption utilization rate is improved, the excretion is reduced, the immune capacity of a body is enhanced, oxidative stress is alleviated, slaughtering performance is effectively improved and the meat quality is improved.