70results about How to "Meet green" patented technology

A method for preparing magnetic biochar from straw includes the step of selecting of a straw material, wherein wheat straw, corn straw, rice straw or cotton straw is selected as the straw material, the straw material is pretreated by cleaning, then the straw material is dipped with a trivalent iron salt solution, and filtered by vacuum, then a filter cake is dried, and a finished magnetic biochar product can be obtained by carbonization treatment in inert gas conditions. The magnetic biochar can be obtained by dipping the straw material in the trivalent iron salt solution by a pyrolysis process, and a new way for the use of straw is provided.

The invention relates to a biological detergent composition. The biological detergent composition is prepared from a biological surfactant, a plant surface active agent, a biological enzyme and at least one washing auxiliary material. In the biological detergent, the biological surfactant is compounded with the plant surface active agent, the biological enzyme and other adjuvant agents. The detergent is reasonable in formula, the total content of active matters is high, and through complex synergism, the washing effect can fully meet the needs of people.

The invention relates to an energy-saving recycling treatment disposal system and an energy-saving recycling treatment disposal process for an organic solid waste. The energy-saving recycling treatment disposal process mainly comprises a continuous sludge pyrohydrolysis anaerobic digestion section, a sludge dehydration heat drying section and a dry sludge, domestic garbage and biogas mixing incineration section. Due to the energy-saving recycling treatment disposal system and process disclosed by the invention, the innocent treatment of kitchen garbage, municipal sludge and the domestic garbage can be thoroughly realized by combining a high-temperature sludge anaerobic digestion technology with the high-organic matter characteristic of the kitchen garbage by utilizing respective characteristics of three solid wastes, applying a solid waste high-temperature incineration technology of mixed biogas, adopting a reasonable energy resource integrated means and applying an advanced high-temperature continuous pyrohydrolysis pretreatment technology. In addition, the energy-saving recycling treatment disposal process disclosed by the invention can also be used for realizing the recycling of the three solid wastes, improving the energy resource utilization efficiency of an integrated system, effectively reducing the input of external energy resources and reducing the operation cost. The energy-saving recycling treatment disposal process disclosed by the invention is capable of realizing the continuous operation of solid waste treatment, simple and reliable, simple in equipment, small in initial investment and has good environmental and economic benefits.

The invention discloses a self-propelled multifunctional straw harvest bundling machine which comprises a winder, a header assembly, an operating device, a chassis assembling assembly, a kneading room, a power device, a front bundling room and a rear bundling rood, wherein the header assembly and the winder are positioned at right ahead of the whole bundling machine; the winder is hooked on a lifting arm of the header assembly, and can be lifted around a rotational shaft of the lifting arm at the action of an oil cylinder; the header assembly is hinged on a support seat at the front of the kneading room, and can be lifted around a hooking shaft; the kneading rood is positioned at the front end on the upper part of the chassis assembling assembly, and the front part of the kneading part is connected with the operating device; a cab is connected with the operating device; the kneading room is connected with the power device, and the rear part of the kneading room is connected with the front bundling room which is positioned at the rear end on the upper part of the chassis assembling assembly, and is hinged with the rear bundling room; a bundling room is formed by the front bundling room and the rear bundling room; bundling rollers are arranged in the bundling room in circumference; and a rope bundling device is arranged at the front of the front bundling room.

The invention belongs to the field of soft soil foundation treatment, and relates to a biological cement reinforced roadbed on an under-consolidation silt blowing foundation and a construction method.Grille gravel piles in the roadbed penetrate through the under-consolidation silt blowing foundation and are embedded into a lower horizontal bearing layer. A plastic drainage plate is driven into the under-consolidation silt blowing foundation. A biological cement-grille reinforced cushion layer is flatly paved on the upper surface of the grille gravel piles. Non-woven geotextiles are laid on the upper surface and the lower surface of the biological cement-grille reinforced cushion layer. The non-woven geotextiles and a sealing film are sealed at the bottom of a tamped clay sealing ditch. Roadbed filling soil is packed on the upper surface of the biological cement-grille reinforced cushion layer and on the non-woven geotextile. Biological waterproof layers are arranged on the upper surface and the side surface of the roadbed filling soil. A soil layer is arranged on the biological waterproof layer on the roadbed side face, and slope protection vegetation is planted to form a roadbedslope ecological waterproof protection layer. The roadbed has the advantages of being reasonable in structure, high in bearing capacity, short in construction period, environmentally friendly and thelike, and is a green ecological structure worthy of popularization.

The invention discloses a method for preparing caster oil-based polyester serving as a PVC (Polyvinyl Chloride) plasticizer, belonging to the technical field of chemical synthesis. The method comprises the following steps: preparing caster oil-based dicarboxylic acid by reacting a down-stream product, namely, ricinoleic acid of low-price bio-based raw caster oil, dihydric anhydride and dihydric alcohol serving as raw materials in two steps: preparing caster oil-based dicarboxylic acid by using ricinoleic acid and dihydric anhydride, and carrying out a polyesterification reaction on the caster oil-based dicarboxylic acid and the dihydric alcohol in the coexistence of a catalyst and a water-carrying agent; and distilling under reduced pressure to obtain the caster oil-based polyester PVC plasticizer. A PVC plastic test piece is prepared by treating the caster oil-based polyester PVC plasticizer, PVC resin and a thermal stabilizer according to a certain formula through a solvent film casting method. The test piece is soft, and is equivalent to a PVC plastic piece plasticized by dioctyl phthalate (DOP) in the transparency under the same condition. The raw material is caster oil-based, recyclable, low in price and independent of petroleum, a preparation process is simple, and three wastes are not produced. The product is non-toxic, environment-friendly, resistant to migration, and superior in plasticizing performance, and has a good application prospect.

The invention discloses a tobacco insect killing, mold prevention, mellowing and quality guaranteeing comprehensive technology method. The tobacco insect killing, mold prevention, mellowing and quality guaranteeing comprehensive technology method includes the steps of preparing a comprehensive oxygen dropping agent, setting feeding and ventilating channels, setting gas detection systems, and setting a comprehensive technology process including low oxygen insect killing, middle oxygen safe storage mellowing and low oxygen quality guaranteeing storage. The implementation method of the tobacco insect killing, mold prevention, mellowing and quality guaranteeing comprehensive technology method includes the steps of enabling the oxygen concentration inside a tobacco warehouse, namely a tobacco stack, to be dropped to 2% to 3% through oxygen dropping, keeping for 7 days to 15 days to complete the insect killing task, adjusting the oxygen concentration back to 5% to 8% by leading in air to implement the safe storage mellowing, keeping the oxygen concentration of 5% to 8% inside the tobacco warehouse, namely the tobacco stack, in the south for 12 months to 24 months, keeping the oxygen concentration of 5% to 8% inside the tobacco warehouse, namely the tobacco stack, in the central China for 16 months to 24 months, keeping the oxygen concentration of 5% to 8% inside the tobacco warehouse, namely the tobacco stack, in the north for 18 months to 28 months, finishing the tobacco mellowing task, after the tobacco mellowing task is finished, dropping the oxygen concentration to 2% to stop the tobacco mellowing inside the tobacco warehouse, namely the tobacco stack, until tobaccos are put into industrial use, and finishing the quality guaranteeing storage task.

The invention discloses a method for improving the surface tension and recoatability of an organosilicone synthetic leather coating. Through the coordination addition reaction of a silicon hydrogen bond and a double bond, a polarity polyurethane chain segment with a terminal sealed by the double bond is introduced into an organosilicone synthetic leather coating material, the surface tension and recoatability of the organosilicone synthetic leather coating are improved, the technical problems that a monotonous organosilicone synthetic leather coating is poor in adhesion to base cloth, after-finishing wet smoothness and recoatability due to the low surface energy is effectively solved, and the method has the feasibility of changing the product aesthetics effect and special effect. In addition, the prepared modified organosilicone coating has the advantage of keeping the wear resistance, scratching resistance, cold resistance, water resistance and the like of the organosilicone coating,does not contain any organic solvent, has the outstanding green and environment-friendly characteristics, and can be widely applied to the industries of leather, synthetic leather, textiles, plastic,rubber, building material, coating and the like.

The invention discloses a composition fungicide containing matrine and humic acid, which uses pure natural ingredients such as plant sources and mineral sources, is effective in preventing and treating apple tree rot, and is harmless to operators during the production process. It will not cause phytotoxicity and drug resistance to plants, and has no use restrictions; it has comprehensive effects such as low toxicity, no residue, environmental safety, and no resistance, and meets the requirements of green or organic production standards.

The invention relates to a method for preparing 1,2-cyclohexene oxide and dicumyl peroxide, and mainly solves the problems that when the 1,2-cyclohexene oxide is independently produced and an essential raw material of the dicumyl peroxide, namely alpha, alpha-dimethyl benzyl alcohol is independently produced, the production processes pollute environment seriously, the quality of products is low, and production cost is high in the prior art. The method comprises the following steps of: a) performing contact reaction of cyclohexene serving as a raw material, dimethylbenzyl hydroperoxide dissolved in a solvent, and a catalyst in an oxidation-reduction reaction device to obtain a material flow I; b) allowing the material flow I to enter a separating column and rectifying and separating to obtain a material flow II on a column top and a material flow III containing alpha, alpha-dimethyl benzyl and dimethylbenzyl hydroperoxide; c) refining the material flow II to obtain a product 1,2-cyclohexene oxide; and d) allowing the material III to enter a condensation reactor, and performing condensation reaction of alpha, alpha-dimethyl benzyl and dimethylbenzyl hydroperoxide at the presence of a condensation agent to obtain a product dicumyl peroxide. The technical scheme solves the problem well and can be used for the industrial production of 1,2-cyclohexene oxide and dicumyl peroxide.

The invention discloses a lead-free copper-based bimetallic wear-resistant material and a preparation method thereof. According to the lead-free copper-based bimetallic wear-resistant material and thepreparation method thereof, copper-plated molybdenum disulfide, copper-plated graphite and copper-plated hexagonal boron nitride are added into lead-free bronze powder, alloy powder is laid on a steel plate, the copper-steel bimetallic lead-free wear-resistant composite material is prepared through a powder metallurgy re-sintering and re-rolling technology, and the effects of antifriction and wear resistance of the molybdenum disulfide, the graphite and the hexagonal boron nitride are exerted in a synergistic mode. The obtained composite material has the advantages of being good in antifriction and wear resistance performance, excellent in mechanical property, free of toxic element of lead, pollution-free to the environment and suitable for industries of medicine, food, machinery and thelike.

The invention discloses a method for processing a dandelion fiber by electrostatic flocking, which comprises the steps of feeding, adhesive coating and scraping, electrostatic flocking, baking, brushing, and after-finish. According to the invention, a novel natural fiber material is developed and utilized, so that an effect of changing waste material into things of value is achieved; the dandelion fiber is low in processing cost and convenient to collect; and the dandelion fiber has an effect of clearing away heat and has a health effect. However, the length of the dandelion fiber is only 10-15 mm, so that the dandelion fiber does not have spinnability, can not be used for spinning and only can be used as a filler material. Electrostatic flocking is a new production process produced by using the natural characteristics of charges, provides a direction for the application of a novel natural fiber in textiles, and meets the requirements of textiles on environmental protection, low carbon, and health.

The invention belongs to the field of agricultural breeding, and particularly relates to animal feed processed by the aid of ginkgo biloba sarcotesta and a method for preparing the animal feed. The animal feed processed by the aid of the ginkgo biloba sarcotesta is made of the ginkgo biloba sarcotesta. The method includes repeatedly extracting the ginkgo biloba sarcotesta by the aid of organic solvents to remove ginkgolic acid which is a toxic substance in the ginkgo biloba sarcotesta; centrifugally washing the ginkgo biloba sarcotesta to remove the residual organic solvents to obtain the animal feed. The animal feed and the method have the advantages that the residual quantity of the ginkgolic acid in the animal feed made of the ginkgo biloba sarcotesta is lower than 10 mg / kg, and the residual quantity of the organic solvents is lower than 0.5 wt%; the ginkgo biloba sarcotesta contains abundant starch, polysaccharides, amino acid, diversified vitamins and proteins, further contains small quantities of ginkgo flavone, terpene lactones, daucosterol and diversified trace elements and is processed to obtain a ginkgo biloba sarcotesta feed additive, the ginkgo biloba sarcotesta feed additive can be used for breeding animals, and accordingly effects of preventing and treating diseases, protecting health and promoting growth of livestock can be realized; food can be saved, environments can be cleaned, pollution can be reduced, and requirements of the modern breeding industry on environmental friendliness, environmental protection, safety and zero pollution can be met.

The invention relates to a grain-saving feed diluted enzyme additive and a preparation method thereof. The grain-saving feed diluted enzyme additive consists of rare earth chloride, rare earth nitrate, lignin enzyme, cellulase, hemicellulase, complex enzyme, medical stone, bentonite, talcum powder, zeolite, ferrous sulfate, manganese sulfate, zinc sulfate, copper sulfate, cobalt sulfate, calcium sulfate and sodium selenite. Lanthanide series light rare earth and enzyme are taken as main materials, Chinese medical stone is taken as a carrier, a proper amount of microelements is taken as feed additive, catalysis of the rare earth, degradation of the enzyme and nutrition functions of the microelements are combined according to optimal proportion. The feed made from the additive has rich nutrition, delicious flavor and high digestivity, and can increase yield factor of livestock and poultry by 6-8%, save 10-12% feed, reduce feed cost by 8-10%, and effectively improve product quality.

The invention relates to a method for deeply removing arsenic in a waste SCR (Selective Catalytic Reduction) catalyst acid system. The method comprises the following steps: (1) grinding a waste SCR catalyst subjected to ash removal, adding waste SCR catalyst powder into a cleaning solution containing an acid substance and an assistant, reacting, and filtering; and (2) washing and drying a filtered solid phase to obtain the product. According to the method provided by the invention, synchronous removal of toxic components such as arsenic, potassium, sodium and iron is realized by adopting the cleaning solution containing the acid substance and the assistant, the removal rate can reach 95% or above, and the content of the toxic components in the product is less than 200ppm; and the method is simple in technological process and easy to operate, avoids alternate use of acid and alkali and generation of waste brine, reduces the production cost and the environmental protection pressure, and conforms to the development trend of environmental protection.

The invention discloses azadirachtin-containing botanical insect aerosol and a preparation method thereof and aims at solving the problem that the effect of the existing insect aerosol is not ideal. The azadirachtin-containing botanical insect aerosol comprises the following components in percentage by weight: 0.1-3% of azadirachtin, 1-20% of neem oil, 0.1-3% of a surface active agent, 8-15% of a cosolvent, 1-10% of an emulsifying agent and the balance of a solvent. The azadirachtin-containing botanical insect aerosol has the advantages that azadirachtin and neem oil are botanical natural active substances, high efficiency, low toxicity, no residue and safety for a human body are realized, indoor environment is not polluted, the requirement of people for environmental friendliness of a hygienic insecticide is met, and the azadirachtin-containing botanical insect aerosol is applicable to control of health pests in places to live, working places, dining places and the like.

The invention discloses a preparation method of low-cost sulfuric-acid-corrosion-resistant 09CrCuSbRE hot-rolled round steel. A steelmaking technological process of the preparation method comprises the steps of converter smelting, external refining, VD vacuum treatment and continuous casting. A steel rolling technological process comprises the steps of casting blank heating, high-pressure water dephosphorization, phi 850 mm cogging mill treatment, phi 700 mm*3+phi 550 mm*4 continuous rolling unit rolling, saw cutting, slow cooling, nondestructive testing, stacking, checking, trimming, bundling, warehousing and delivery. The technical parameters controlled in the rolling process are as follows: the heating temperature is 1150 to 1200 DEG C, and the heat preservation time is more than or equal to 3 hours; the initial rolling temperature is lower than or equal to 1100 DEG C; the final rolling temperature is lower than or equal to 780 DEG C; the slow cooling time is longer than or equal to48 hours; and a rolled tissue is a ferrite and pearlite tissue. Through delivery in a hot-rolled state, a complex heat treatment process is not needed, and a wide process window is realized.

The invention discloses a lead-free copper-based sliding bearing material and a preparation method thereof. The raw materials comprises nickel, tin, iron, bismuth, molybdenum disulfide, phosphorus and cooper, the cooper serves as base materials, cooper-plated molybdenum disulfide and the bismuth serve as lubricating components, and lead in a bearing is replaced by a synergistic effect of the molybdenum disulfide and the bismuth; a cooper plating layer is formed on the surface of the molybdenum disulfide through a chemical plating effect, so that a combining effect of the molybdenum disulfide and the cooper base is improved, and decomposing does not happen in sintering; and the bismuth has antifriction and antiadhesion effects, the cooper-tin-bismuth powder is subjected to atomization treatment, and the situation that the brittle phase bismuth falls off from the base body is effectively avoided. According to the lead-free copper-based sliding bearing material, antifriction and antiadhesion performance is good, mechanical performance is excellent, the lead-free copper-based sliding bearing material can be used in the fields of food machinery, medicine machinery, engineering machinery and the like, and broaden application prospects are achieved.

The invention discloses a preparation method of fatty ester sulphonate which takes microbial oil as a raw material to obtain an anionic surfactant, namely fatty ester sulphonate, via a series of reactions such as ester exchange, epoxidation, ring opening and sulfonation. The microbial oil adopted by the method is prepared by fermentation of yeast and algae by taking a straw as a raw material; the oil is low in production cost; large scale industrial production of a product of the oil is easy to realize; and the method achieves conversion of the straw into soap and a detergent. The anionic surfactant, namely fatty ester sulphonate, prepared by the method has a higher active substance content; the preparation method of the anionic surfactant has no problem of 'fighting for grains with people', and solves the problems that animal and vegetable oil are long in production cycle and are limited by seasons and climates, raw materials are narrow in source and additional cultivated land resources are occupied at present, and particularly the problem that the yield of the animal and vegetable oil is far from meeting MES (fatty acid methyl ester sulfonate) industrial production requirements; and the method has good economic benefits and wide application prospects.

The invention discloses an antifriction lead-free copper-based sliding bearing material and a preparation method thereof. The ferrous sulfide powder, the bismuth powder and the bronze powder are subjected to mechanical alloying by adopting a ball milling technology to improve the interface adhesive strength of the ferrous sulfide, the bismuth and the bronze, and the phenomenon that the ferrous sulfide is easy to agglomerate when the content of copper matrix is relatively high is improved, the structure of FeS is good in oil storage capacity, the stability of the liquid-solid lubricating film is enabled to be good, so that the process of Bi spalling, the fusion of the low-melting-point component Bi and separating out of the low-melting-point component Bi are relieved, and the liquid-solid lubricating film can also be repaired and completed, so that the antifriction performance of the material is improved; in conclusion, the antifriction and wear-resistant properties of the copper-basedsliding bearing material are improved, the lead which is used as a lubricant in the copper-based bearing material is replaced by the good synergistic effect of the ferrous sulfide and the bismuth, sothat the pollution of lead is avoided; and the antifriction lead-free copper-based sliding bearing material and the preparation method thereof have the advantages of being low in cost and suitable forindustrial production.

The invention provides a process for manufacturing paper pulp by an active method and with fresh bamboo as a raw material. The process comprises the steps that bamboo cutting is performed; slicing isperformed; ultra-high pressure grading rolling is performed, specifically, bamboo chips are placed in a rolling roll for grading rolling, wherein grading rolling includes four to six grades of rolling, and the rolling pressure of each grade is gradually increased; thread rolling is performed; primary filtration extrusion is performed to obtain initially filtered bamboo pulp; secondary filtration extrusion is performed, specifically, water is added to the initially filtered bamboo pulp and then heating and stirring are performed, then physical filtration and secondary extrusion are sequentiallyperformed to obtain re-filtered bamboo pulp, and the total time is not more than 72h from the beginning of raw bamboo cutting to secondary filtration extrusion; and a biological enzyme is softened and released. The process rapidly separates lignin, amino acid, flavone, proteins and the like from bamboo fiber when lignin, amino acid, flavone, proteins and the like are still in a liquid state, is conducive to maintaining the integrity of the bamboo fiber to the utmost extent, is simple in operation and low in cost, is energy-saving, environmentally friendly and low-carbon, and is worth popularizing and applying.

The invention belongs to the technical field of battery catalyst, and discloses a nitrogen-doped 3D porous carbon material modified by carbon nanoparticles and a preparation and an application thereof. The preparation method includes the following steps: Eucalyptus wood is hydrothermally carbonized in water in a hydrothermal reactor to obtain pre-hydrothermally-carbonized Eucalyptus wood, whereinthe hydrothermal carbonization is carried out at the temperature of 150-200 DEG C; and (2) the pre-hydrothermally-carbonized Eucalyptus wood is carbonized in an ammonia atmosphere to obtain a nitrogen-doped 3D porous carbon material modified by carbon nanoparticles, wherein the carbonization is carried out at the temperature of 900-1100 DEG C. The method of the invention is simple and low in cost,and the porous carbon material prepared has excellent catalytic activity. The porous carbon material is used as an oxygen reduction catalyst to catalyze the cathodic oxygen reduction reaction in fuelcells.

The invention relates to a manufacturing method of artificial lightweight aggregate or super lightweight aggregate multifunctional concrete and belongs to the technical field of novel concrete materials, environmental engineering and construction. Firstly, a special additive C for preparing the artificial lightweight aggregate or super lightweight aggregate multifunctional concrete is manufactured, a shrinkage restraining additive D is manufactured, after cement, mineral powder, coal ash, microbeads, silica powder, water, glass beads, river sand and other materials are weighed in proportion, the materials are mixed according to the process requirement, and the artificial lightweight aggregate or super lightweight aggregate multifunctional concrete is obtained. According to the method, the multifunctional concrete is manufactured from domestic existing concrete raw materials, industrial residues and other materials, and the product has the functions of self-compaction, self-maintenance, low hydration heat, low shrinkage, high durability and high plasticity retention, and can be applied to constructional engineering, civil engineering, traffic engineering and the like. The manufacturing method has the advantages that construction is convenient, quality is easy to guarantee, management is easy and convenient, and cost is low, energy and resources are saved, and the requirements of environmental protection are met.

The invention discloses a plant sterol coffee mate. The plant sterol coffee mate comprises the following components in parts by weight: 1 part of plant sterol, 3-12 parts of vegetable oil, 0.1-1 part of sodium caseinate, and 0.01-0.1 part of glyceryl monoaliphatic ester. At the same time, the invention discloses a preparation method for the plant sterol coffee mate. Based on the traditional coffee mate, the plant sterol with various physiological functions is added to the coffee mate disclosed by the invention, so that the plant sterol coffee mate can effectively restrain adverse effects on health by the traditional coffee mate, the plant sterol coffee mate which has unique advantages conforms to the "green and health" requirements for food at present, and the market prospects are good.

The invention discloses an iron-based biochar sponge composite material as well as a preparation method and application thereof, and belongs to the technical field of sewage treatment. The preparation method comprises the following steps: (1) preparing biochar; (2) conducting modification treatment: soaking the original biochar in a ferric trichloride solution, conducting stirring, carrying out solid-liquid separation, collecting solids, and conducting drying and pyrolyzing to obtain iron-based biochar; and (3) conducting in-situ polymerization: mixing polyvinyl alcohol with water, conducting heating and stirring to obtain an emulsion, then adding the iron-based biochar, uniformly conducting stirring, then adding a foaming agent, then adding a sulfuric acid solution and a formaldehyde solution, uniformly conducting stirring, pouring the stirred system into a mold, and conducting drying and foaming to obtain the iron-based biochar sponge composite material. Biomass waste is adopted as a raw material, so that the method is green and environment-friendly; and the prepared composite material is good in water absorption, corrosion resistance and impact resistance, can be applied to pollution purification of natural flowing water bodies, is high in adsorption efficiency on phosphate radicals in the water bodies, and has potential application value in the field of wastewater treatment.

The invention belongs to the field of traditional Chinese medicinal fermentation medicines, and in particular discloses a compound Chinese herbal microecological preparation with the efficacies of supporting right and resolving toxins for beasts and birds and a preparation method of the compound Chinese herbal microecological preparation. The preparation method of the compound Chinese herbal microecological preparation comprises the following steps: taking 40-60 parts of radix isatidis, 40-60 parts of radix astragali, 20-30 parts of herba epimedii, 15-20 parts of radix pseudostellariae, and 10-15 parts of folium isatidis; grinding the raw materials, and screening the obtained powder by adopting a sieve, thus obtaining compound Chinese herbal powder; stirring for mixing the compound Chinese herbal powder and fermentation liquor of four probiotics including lactobacillus plantarum, saccharomycetes, lactobacillus casei LCZ-1 and bacillus subtilis, and carrying out fermentation, thus obtaining the compound Chinese herbal microecological preparation. The prepared microecological preparation has the efficacies of supporting healthy qi, consolidating the foundation, and clearing away heat and toxic materials, can enhance the body immunity of bred animals and improve the disease resistance of the bred animals, and has small side effects, the use of antibiotics can be reduced, the drug residue and drug abuse can be avoided, the requirements of no pollution and safety are satisfied, and the prevention and control for the bred animal groups are facilitated.

The invention relates to a method for extracting pigment from mango peel. The method is characterized by comprising the following steps: (1) selecting fresh and ripe mango peel, and drying and pulverizing the mango peel; (2) soaking the obtained peel in an aqueous solution of an organic solvent, putting the solution in a microwave system for extraction, performing extraction by a centrifuge, and collecting a supernatant; (3) performing vacuum filtering and concentration to recycle the organic solvent; and (4) collecting the concentrated solvent, performing dynamic adsorption of the concentrated solvent for several times by using a macroporous resin, performing elution with ethanol, recycling ethanol from the eluate, putting the obtained product in a vacuum refrigerated cabinet, and drying. According to the invention, the pigment has a high content, appears natural yellow, and has a bright color. According to the invention, yellow pigment can be successively extracted from normal waste mango peel; waste mango peel is turned into wealth; social requirements of green and recycling economy are satisfied; and the whole extraction processes are low in cost and suitable for mass production.

The invention relates to a modified mullite, a water-based intumescent fire retardant coating and preparation methods of the modified mullite and the water-based intumescent fire retardant coating. The mullite is coated with a polydopamine coating layer, the modified mullite is prepared from the rich catechol hydroxyl grafted silane coupling agent and a phosphorus flame retardant DOPO on the coating layer, the modified mullite is applied to the water-based intumescent fire retardant coating, the fire retardant coating is excellent in water resistance, and an intumescent carbon layer is compact and firm; and meanwhile, the preparation method is simple and easy to implement, does not need a large amount of toxic organic solvents, does not need long-time high-power power consumption, conforms to the green, environment-friendly and energy-saving development concepts, and is suitable for popularization and industrial production.

The invention discloses a basalt fiber hollow insulation partition plate, prepared from a dry material and water; the dry material comprises, by weight, 15-25% of cement, 55-75% of furnace slag, 5-10% of expanded perlite, 0.1-0.5% of basalt fiber, 0.3-0.7% of magnesium stearate, and suitable water. The partition plate prepared herein has high compressive strength and high flexural capacity, and also has the advantages of light weight, good thermal insulation and acoustic insulation, good fireproof property and waterproof property, good convenience of installation and the like. In addition, the partition plate according to the invention features waste utilization and environmental protection, the energy resources that are in shortage increasingly are saved, piling sites are saved, the production cost is lowered, and the living environment of human is protected.