1114results about How to "Reduce poison" patented technology

The invention discloses a compound microorganism liquid bacterial fertilizer for preventing plant diseases and insect pests and a preparation method of the compound microorganism liquid bacterial fertilizer and belongs to the technical field of microorganisms. The bacterial fertilizer comprises raw materials of, by weight, 10-20 parts of paprika powders, 10-20 parts of chilli powders, 5-15 parts of ginkgo leaf powders, 5-15 parts of chinaberry powders, 5-15 parts of lightyellow sophora root powders, 20-40 parts of mashed garlic, 40-80 parts of molasses, 4-8 parts of soybean meal, 5-15 parts of calcium sulfate, 5-15 parts of magnesium chloride, 5-10 parts of salt, 5-15 parts of photosynthetic bacterium strains, 5-15 parts of saccharomycete strains, 5-15 parts of lactic acid bacterium strains, 5-15 parts of streptomyces jingyangensis strains, 5-15 parts of bacillus subtilis strains and 800 parts of water. According to the compound microorganism liquid bacterial fertilizer, probiotic floras which are screened and are capable of coexisting are used for fermenting plant leaching agents of pepper, chilli, ginkgo leaves, chinaberry, lightyellow sophora roots and garlic, the plant leaching agents are capable of expelling and killing the insect pests and harmful bacteria, the compound microorganism liquid bacterial fertilizer has the advantages of being high in content of live bacteria of probiotics, high in activities, high in stability, small in using amount of plant materials, fast in acting effects, non-toxic and environment-friendly, and has wide application prospects in agricultural planting.

The invention provides a simple and effective thermal management system of a water-cooling proton exchange membrane fuel cell and a control method of the thermal management system. The thermal management system mainly comprises an electric pile, a water tank provided with a heating device, a cooling water circulating pump, a radiator, a cooling water pile inlet temperature sensor, a cooling water pile outlet temperature sensor, a cooling water pile inlet pressure sensor and a controller of the thermal management system. The control method following pressure change is provided to overcome the defects of lag, great overshooting, system coupling and the like caused by temperature change tracking in the traditional control strategy. The radiator is mainly used for controlling the cooling water inlet temperature of the pile and mainly controls the rotating speed of a radiator fan according to the cooling water inlet temperature of the pile of the fuel cell; and the cooling water circulating pump is mainly used for controlling the cooling water flow in the whole thermal management system and mainly controls the rotating speed of the circulating pump according to the cooling water inlet pressure of the pile of the fuel cell.

Disclosed is a process for humidifying syngas to achieve a water to carbon monoxide molar ratio in the product syngas within a desired range and in which the molar ratio which can be varied over time in response to changes in downstream syngas requirements. The raw syngas is produced by reacting a carbonaceous material with oxygen, water, or carbon dioxide and can be combined with a diluent to produce a diluted syngas stream which can be cooled and contacted with liquid water to give a humidified syngas. The H2O:CO molar ratio of the humidified syngas may be adjusted in response to time-varying downstream syngas requirements by changing the amount and / or temperature of the diluent that is combined with the raw syngas stream, by adjusting quench and heat exchange conditions, or a combination thereof. The application of the process to the coproduction of chemicals and power are also disclosed.

The invention discloses a water-based plastic composite printing ink, in particular to a water-based ink needed in the plastic film intaglio printing composite process. To solve problems, the invention provides the water-based ink which remarkably improves composite strength, sealing strength and printing mass relative to the prior solvent ink on the premise of not reconstructing the prior printing equipment or adjusting the printing process; the water-based ink adopts the following technical proposal: the water-based plastic composite printing ink is prepared from the following raw materials in weight portion: 10 to 35 portions of aqueous polyurethane emulsion, 0 to 8 portions of aqueous acrylic resin, 0 to 7 portions of aqueous wetting dispersant, 0.2 to 2 portions of aqueous dampness levelling agent, 0.1 to 2 portions of aqueous defoaming agent, 0.1 to 5 portions of PH regulator, 6 to 30 portions of pigment, 0 to 5 portions of ethanol and 6 to 73.6 portions of water. The water-based ink can be widely applied in the field of ink manufacturing.

The invention relates to a method for treating organic amine industrial waste water by Fenton-like oxidation-flocculation. According to the method, the pH value of the waste water is adjusted to 3-5, and the temperature of the waste water is adjusted to 20-40 DEG C; a catalyst is added, wherein active ingredients of the catalyst comprise: ferrous sulfate, anhydrous cupric sulphate and manganese sulfate monohydrate, wherein the mass ratio of the ferrous sulfate to the anhydrous cupric sulphate to the manganese sulfate monohydrate is (5-10):1:(0-5); H2O2 (30%) is added, and the oxidation reaction time is 4 hours; after completing the oxidation reaction, sodium hydroxide is added to adjust the pH value of the waste water to 8-10; adding a chemical coagulant and an organic polymer flocculant, such that partial suspended solids, colloids and partial organic amines in the waste water are concurrently coagulated. According to the present invention, the Fenton-like oxidation-flocculation is adopted as the pretreatment for the organic amine waste water, such that the organic amines in the waste water can be effectively removed, the poison and the impact on microorganisms due to the high concentration organic amines in the wastewater can be reduced, the subsequent biological treatment is easily performed for the sewage.

The invention discloses herbicide containing glufosinate. The herbicide containing glufosinate is characterized by comprising technical material composed of glufosinate and herbicide B according to a proportion of 1-80:1-80. The herbicide B is one of fenoxaprop-ethyl, fenoxaprop-P-ethyl, isoproturon, diclofop-methyl, chlortoluron, methabenzthiazuron, imazamethabenz, tralkoxydim, difenzoquat, flampro, flamprop-M, pendimethalin, nicosulfuron, primisulfuron and the like. The herbicide containing glufosinate is composed of herbicide A and the herbicide B and has the advantages that the herbicide is capable of killing ground weeds and grass seeds which are about to germinate and is long in effect duration; herbicide controlling spectrum is wide, and the herbicide is widely applicable to controlling weeds in dry lands; the herbicide is low in toxicity, weak in sensitization and low in poisoness to crops and human, can control weeds safely without harming the crops, and is evident in weed control synergy.

The present invention relates to a rare-earth doped low-temperature denitration catalyst and a preparation method thereof. The main active component of the catalyst is manganese oxide, the carrier is titanium oxide, and cerium oxide and iron oxide are used as cocatalysts. The preparation method includes the following steps: adding solutions of various metal nitrates into a metatitanic acid slurry, then adjusting the pH of the mixture to obtain complete precipitation by using concentrated ammonia, stirring for a while, and performing centrifugal filtration to the resulting suspension, and drying and calcining at a temperature to obtain the rare-earth doped low-temperature denitration catalyst; wherein the molar ratio of each element is as follows: Mn: Fe: Ce: Ti = 5: (0 ~ 2): 4:20. In the temperature range of 140-180 DEG C, the denitration activity of the metal oxide low temperature catalyst of the present invention can reach 80-98%, and the catalyst has a relatively excellent water and sulfur resistance performance.

The invention relates to organic-inorganic biological mineral composition composite synusiologic fertilizer and the preparation method thereof. The invention comprises the raw materials as follow in weight proportion: 20 to 30 parts of organic raw material, 30 to 60 parts of inorganic fertilizer, 10 to 20 parts of mineral composition raw material, and 1 to 5 parts of synusiologic mushroom. The invention has the advantages of promoting the absorption of crops, increasing the fertilizer absorption rate from primary 34 percent to more than 60 percent, decreasing the fertilizer residue, promoting the growth of the crops, improving the quality of the crops, ensuring the early development of the crops, the rich branching roots, the rich branches, the rich leaves, and early mature, and increasing the yield by 50 to 80 percent. Besides, the invention also has the advantages of restraining the development of pathogenic bacteria inside the soil, decreasing the disease and the harm to the crops, improving the structure of the soil, activating the nutrient of the soil and achieving the synusiologic planting.

The invention discloses a soil improvement agent and improvement method of heavy metal lead-contaminated soil, relating to a soil improvement agent. The soil improvement agent is solid bamboo shoot shell-based biochar, and elements obtained by isolating oxygen at 400 DEG C and pyrolyzing for 30 minutes include C, H, N, K, P, Mg, Ca, Si and O. The soil improvement agent is prepared by the steps of cleaning, drying and grinding a bamboo shoot shell, and putting into a pyrolyzing furnace; isolating oxygen at 380-420 DEG C and pyrolyzing for 20-40 minutes; drying, pre-charring and charring the biomass bamboo shoot shell to obtain solid bamboo shoot shell-based biochar. The improvement method comprises the steps of adding 2.5-10% of the soil improvement agent by mass into the heavy metal lead-contaminated soil; adding water to 70% of the saturation moisture capacity of the field oil; covering with a film to prevent water loss; forming air ports in the film at an interval of 5cm; adding water every 2-3 days to supplement the lost water; culturing, taking out the product and performing air drying to obtain improved soil.

The present invention is green alkaline paint remover for eliminating coating from electronic circuit board and its preparation and usage, and belongs to the field of paint remover technology. The paint remover consists of NaOH in 40-150 g / L, surfactant in 0.5-50 g / L, additive in 0-50 g / L, corrosion retardant 0.1-2.5 g / L, and water for the rest. It is prepared through mixing and heating at 50-80 for dissolving completely. When the paint remover is used, the electronic circuit board is soaked in the paint remover and heated at 50-100 deg.c for 10-60 min to eliminate its paint layer. The present invention has the advantages of low cost, fast paint eliminating speed, low toxicity, use safety and capacity of being used repeatedly.

The invention discloses a combustion heating control device and method used for a gas water heater. The combustion heating control device comprises a water inlet pipe, a heat exchanger, a water outlet pipe, a heater and a control module. An air inlet pipe, a gas pipe and an exhaust pipe are arranged on a shell of the heater. An isolating and mixing bin and a combustion bin are arranged in the shell. A water inlet flow sensor and a water inlet temperature sensor are arranged on the water inlet pipe. A water outlet temperature sensor is arranged on the water outlet pipe. A vortex draught fan, an air proportional valve and an air flow sensor are arranged on the air inlet pipe. A gas proportion valve is arranged on the gas pipe. A tail gas temperature sensor and an air pressure sensor are arranged on the exhaust pipe. An igniter and an oxygen sensor are arranged in the combustion bin. The control module is connected with all the sensors, the vortex draught fan, the air proportion valve, the gas proportion valve and the igniter. An energy-saving control method of the combustion heating control device is included. The combustion heating control device has the advantages of being sufficient in gas combustion, low in manufacturing cost, concentrated in heat, and capable of saving gas, reducing carbon dioxide emission and reducing carbon monoxide poisoning.

The invention provides a method for treating organic waste gas by combining photocatalysis and microorganisms. Simultaneously, the invention also discloses a device of the method for treating the organic waste gas by combining the photocatalysis and the microorganisms and application thereof. The method for treating the organic waste gas by combining the photocatalysis and the microorganisms comprises the steps of physical dust removal, photocatalyst catalytic oxidation, microorganism purification, and the like, and can effectively eliminate total suspended particulate matters in the organic waste gas and volatile organic compounds in waste gas. The device of the method for treating the organic waste gas by combining the photocatalysis and the microorganisms is applied to treating industrial organic waste gas, and is particularly applicable to treating the organic waste gas in various industrial organic waste gas emission workshops.

The invention discloses a biological organic compound fertilizer which comprises the following components in parts by weight: 50-75 parts of organic compound containing amino acids, 15-35 parts of humic acid compound fertilizer, 5-15 parts of bone meal, 0.05-1 part of EM animalcule bacteria and 0.05-1 part of accessory, wherein the organic material containing the amino acid is selected from dry traditional Chinese medicine residue or dry methane residue, the humic acid compound fertilizer comprises humic acidic ammonium, humic acid potassium and humic calcium phosphate, and the accessory comprises humic acid and one or a plurality of components selected from urea, ammonium bicarbonate, calcium superphosphate, ammonium phosphate and triple superphosphate. The effective viable count in the biological organic compound fertilizer is larger than or equal to 200 million / g, the organic matter weight percentage is larger than or equal to 25%, and the weight percentage of NPK total nutrient islarger than or equal to 10%. The invention also discloses a preparation method of the biological organic compound fertilizer. The biological organic compound fertilizer is a green environmentally friendly manure which can increase crop yield and quality.

An ion migration spectroscope based on film sample feed-in consists of film sample feeding in unit, vacuum ultraviolet ray source, ionizing reaction region, ion gate, ion floating region and receiving electrode.

A method for extracting germanium, indium and zinc from high iron, silicon and manganese materials containing germanium, indium and zinc belongs to the technology of hydrometallurgy. Sulfuric acid and fluoride are adopted for acid leaching for two times, leaching rate of germanium can reach 90% above, and secondary acid leaching slag contains germanium equal to and less than 0.005%. The total leaching rate of indium reaches 95% above, and tailings contain indium equal to and less than 0.003%. Germanium concentrate obtained by germanium extraction through an extraction method contains fluorine less than 1%. Low temperature leaching is performed at 70+-10 DEG C, the structure of iron vitriol slag is damaged as little as possible, and the concentration of ferric iron in leaching liquid is reduced. Ammonium iron hexafluoride produced in the leaching process shields the ferric iron, P204 indium extraction, N235 germanium or tannin extraction and tannin extract germanium deposit are improved, and the poisoning phenomenon in ferric iron of P204 and N235 is reduced. Comprehensive recovery utilization rate of germanium, indium and zinc in high iron, silicon and manganese materials is greatly improved.

This invention is generally related to a low phosphorus lubricant for an internal combustion engine that provides superior deposit control while still retaining excellent viscosity control.

The invention mainly provides a method for improving the farmland soil environment capacity by combining with the current severe situation of the farmland soil. The method is used for enhancing the self cleaning capacity of the farmland soil, lowering harm on crops by various pollutants (organic matters and heavy metal) in the farmland soil and lowering the adsorption on soil harmful substance by the crops so as to lower the index to the human body health risk by the soil harmful substance. The method is suitable for farmland soils around pollution sources, such as various chemical plants, insecticide factories, electroplate factories and chemical fertilizer plants to prevent various pollutants from invading, the yield of the crop is improved, and the quality of the crop is improved.

The invention relates to supported iron-based composite oxide catalyst and a preparation method thereof. The catalyst is made of titanium oxide or aluminum oxide serving as a carrier, iron and cerium serving as a host, and optional one or a plurality of transition metals such as tungsten, molybdenum, titanium and zirconium serving as axillaries. The mole ratio of the iron to the cerium is 1.0-10.0:1. The mole ratio of the host to the auxiliaries is 1.0-5.0:1. The mole ratio of the total of the host and auxiliaries to the carrier is 0.1-0.5:1. The preparation method includes: preparing the auxiliaries and the host into solution, soaking the carrier in the solution, dropwise adding precipitant for precipitation, filtering, drying and calcining. The catalyst has wide denitration temperature window and fine low-temperature denitration activity.

The invention provides an application of arbuscular mycorrhizal fungi (AMF) in enhancement of growth and capability of heavy metal absorption from soil of black nightshade and a method of enhancing cadmium absorption of black nightshade from soil by utilization of the arbuscular mycorrhizal fungi. A cadmium (Cd) hyperaccumulating plant black nightshade is adopted as an experiment plant, the AMF is adopted as an Inoculant, the Cd hyperaccumulating plant black nightshade and the AMF capable of promoting plant growth are combined, and the AMF can enhance growth and capability of cadmium absorption from soil of the black nightshade, thus increasing the remediation efficiency of the black nightshade for Cd-contaminated soil. Compared with traditional chemical and agricultural measures, the method has characteristics of good treatment effects, no secondary pollution, low operation cost, and the like, and has good theoretical and application popularization value.

In this invention, fatly acid and ethanolamine are proportioned and under ester-aminated, then reacting with dimethyl carbonate to produce ester-amine type quaternary ammonium salt. Said invention p rocess of synthesis has high transforming rate, excellent selectivity, high content of active matter in said product, utilizing no pollution type raw material of dimethyl carbonate, so, no remaining of poison in product, lowering quaternary ammonium salt pollution to environment and to human health.

The invention discloses a compounded botanical synergistic fungicide containing sophocarpidine and osthol. The obtained compounded botanical synergistic fungicide takes sophocarpidine and osthol as main components, and is added with accessory ingredients in a synergistic manner; the morphology of the compounded botanical synergistic fungicide is environment-friendly missible oil, microemulsion, aqueous solution or soluble liquid; and in addition, the compounded botanical synergistic fungicide contains sophocarpidine accounting for 0.1 to 20 percent and osthol accounting for 0.1 to 20 percent, and the rest is the accessory ingredients. The compounded botanical synergistic fungicide is mainly used for controlling downy mildew, gray mold, anthracnose, powdery mildew, cladosporium cucumerinum, soft rot and basal stem rot. The compounded botanical synergistic fungicide does not contain any chemical pesticide component, is easy to degrade in environment, has no consideration of environment pollution and residual hazard, is safe to human, livestock and environment; germs are not easy to be drug-resistant to the compounded botanical synergistic fungicide; the compounded botanical synergistic fungicide is of great value to be applied and popularized on main agricultural and sideline products that earn foreign exchange through exports, such as melons, fruits, vegetables, tea leaves and medicinal materials; and in addition, the compounded botanical synergistic fungicide is an ideal novel pollution-free bactericide.

The invention provides a method for remediating heavy metal-organic matter composite contaminated soil. The method sequentially comprises the steps of building a leaching slope, paving the soil, carrying out heterogeneous physical and chemical leaching, backfilling, carrying out in-situ biodegradation and carrying out phytoremediation. According to the method, contaminants in the soil can be rapidly and effectively degraded, the remediation period of the contaminated soil is shortened, the remediation cost is low, no secondary contamination is caused, the method is simple and feasible, the fertility of the soil in contaminated sites can be improved, and the method is suitable for remediating the contaminated sites with various scale. The method can be used for remediating the soil contaminated by heavy metal such as Mn, Pb, As and Cu and the soil compositely contaminated by the organic matter such as petroleum and polycyclic aromatic hydrocarbon.

The invention discloses biological compound fertilizer containing organic and inorganic components and a preparation method thereof. The compound fertilizer comprises beneficial microorganism flora, organic matter, humic acid and inorganic nutrient. The preparation method comprises the following steps of: grinding the raw materials including 50-60% of organic matter, 5-10% of humic acid and 20-40% of inorganic nutrient by a grinder into powder of 80-120 meshes; putting 50-100 million beneficial bacteria per gram of product into a mixer, uniformly mixing and feeding into a granulator for granulation; drying, cooling and screening; and finally packing to obtain a finished product, wherein organic matter accounts for 20-30%, and humic acid accounts for 3-5%; in the inorganic nutrient, major elements account for 15-25%, the secondary elements account for 5-10%, and the trace elements account for 1-2%; and each gram of the finished product contains 30-50 million beneficial bacteria. The fertilizer disclosed by the invention is suitable for any crop; the fertilizing experiments of the fertilizer are conducted on paddy rice, cotton, rape, melon and fruit, wheat and vegetables; and the results show that: the yield of the experimental group is increased by 15-30% over the control group without using the fertilizer, and the yield increasing effect is obvious.

The invention relates to a preparation method of a supported type denitration catalyst. The preparation method comprises the following steps of: adopting soluble iron salt and cerate as active components, adding water for dissolving and mixing to prepare mixed solution; adding corresponding carriers into the mixed solution, dipping, dripping an alkaline precipitating agent till the pH is equal to 9-10, precipitating completely, then filtering, and cleaning to obtain a filter cake; putting the filter cake into a microwave experiment table for microwave treatment, then drying, finally calcining, and activating to prepare the catalyst. The catalyst prepared by the invention has the advantages that a denitration temperature window is wide, the low-temperature denitration activity is good, the energy consumption of the preparation method is low, and the preparation of the denitration catalyst is reduced.

The invention relates to a graphene-doping conductive polymer modified metal bipolar plate of a proton exchange membrane fuel cell and a preparation method of the metal bipolar plate, belonging to the technical field of a fuel cell. The bipolar plate comprises a metal plate, a polarity oxide film layer and a graphene-doping conductive polymer film layer, wherein the polarity oxide film layer covers the surface of the metal plate, the graphene-doping conductive polymer film layer covers the surface of the polarity oxide film layer, and the thickness of the graphene-doping conductive polymer film layer is 0.005-0.3 millimeter, the thickness of the polarity oxide film layer is 5-30 nanometers, and the thickness of the metal plate is 0.1-2 millimeters. A graphene-doping conductive polymer film is deposited on the surface of a stainless steel plate after preprocessing by an electrochemical synthesis method, the metal bipolar plate prepared according to the invention has the advantages of relatively low contact resistance, low corrosion current density and high bonding firmness of the metal substrate and the conductive polymer film, moreover, the method is simple, the processing cost is low, and mass production can be achieved.

The invention discloses a treatment method of antibiotic fermenting bacterial residues. The treatment method comprises the following steps: uniformly mixing the fermenting bacterial residues of lincomycin hydrochloride and gentamicin with water, and preparing a suspension; performing anaerobic fermentation treatment on the suspension. The treatment method is an efficient fermentation treatment process of the fermenting bacterial residues of lincomycin hydrochloride and gentamicin and belongs to the technical field of resource utilization of the bacterial residues. By adopting the method disclosed by the invention, the toxicity, the harm and an inhibition effect of residual antibiotics to fermenting bacteria in an anaerobic fermentation process of the traditional antibiotic bacterial residues are overcome, the problems of blockage, short flow and the like which are produced when a traditional filler is fed are simultaneously avoided, the biomass of a hydrolysis acidification pool and an L-fermentation tank is ensured, the gas production is improved and the method further has the advantages of low treatment cost, easiness in control of operation process, high load of a reactor matched with the method, small occupied area and the like.

The invention discloses a biological-organic fertilizer special for corn and a preparation method thereof, and belongs to the technical field of crop formula fertilizers. The biological-organic fertilizer special for the corn is prepared form, seaweed extracts, urea, ammonium polyphosphate, potassium nitrate, magnesium sulfate monohydrate, EDTA chelate ferrum, EDTA chelate manganese, EDTA chelate zinc, EDTA chelate cuprum, boric acid, ammonium molybdae and fulvic acid potassium. The raw materials all adopts commercially available materials except that the seaweed extracts are produced by Stanley Fertilizer Limited Company. The prepared fertilizer is comprehensive in nutrition, scientific and reasonable in formula, water-soluble, easy to apply and capable of improving soil and effectively promoting the growth of crops by combining quick acting and long acting.

The invention relates to a tableware detergent with an anti-bacterial function. The tableware detergent is prepared by the following raw materials in parts by weight: 5 to 10 parts of sucrose palmitate, 5 to 10 parts of alkyl glycoside, 5 to 10 parts of dodecyl dimethyl betaine, 5 to 10 parts of chitosan, 1 to 5 parts of seconary alkane sulphonate sodium, 0.5 to 2 parts of sodium alginate, 0.5 to 3 parts of sodium sulfate, 0.5 to 3 parts of sodium perborate, 1 to 3 parts of lemon acid, 1 to 3 parts of sodium chloride, 1 to 5 parts of hydroxypropyl methylcellulose sodium, 1 to 5 parts of xanthan gum, 1 to 5 parts of lipase, 0.5 to 1 parts of tea saponin, 0.5 to 2 parts of bactericide, 0.5 to 2 parts of chelating agent, 0.1 to 0.5 part of essence, 5 to 10 parts of glycerin, 5 to 10 parts of ethanol, and 20 to 50 parts of deionized water. The tableware detergent with the anti-bacterial function has the advantages that the detergency is strong, the irritation to skins is avoided, the environment-friendly effect is realized, the inhibition function on various pathogenic bacteria is realized, various food residues and oils can be quickly removed, and the spots of the tableware are avoided after cleaning.

The present invention discloses a kind of anticorrosion mildew inhibitor for bamboo and timber material. The anticorrosion mildew inhibitor for bamboo and timber material has bamboo vinegar liquid as matrix and contains chlorthalonil, triazolone, boric acid, borax, copper sulfate, santobrite, sodium dichromate, sodium fluoride or their mixture. The anticorrosion mildew inhibitor has bamboo vinegar liquid, rather than water, as matrix, and possesses high anticorrosion and mildew inhibiting effect and less environmental pollution.

The invention belongs to the technical field of fuel batteries, and relates to a PBI-based polysiloxane and phosphonic acid high-temperature proton exchange film and a preparation method thereof. The PBI-based polysiloxane and phosphonic acid high-temperature proton exchange film disclosed by the invention is prepared through the following method: dispersing polysiloxane and phosphonic acid in dimethylacetamide, and preparing to obtain a polysiloxane and phosphonic acid gel; then dissolving PBI in dimethylacetamide to obtain PBI polymer solution; then uniformly mixing the polysiloxane and phosphonic acid gel with the PBI polymer solution, then preparing by a tape-casting film-forming technique to obtain the PBI-based polysiloxane and phosphonic acid high-temperature proton exchange film. The doping amount of phosphonic acid is low and phosphonic acid is not liable to exude when the high-temperature proton exchange film prepared by the preparation method disclosed by the invention achieves a certain proton conductivity, and the high-temperature proton exchange film has a high proton conductivity under a high-temperature and low-humidity condition; moreover, the medium-temperature proton exchange film is good in flexibility, high in mechanical strength, and good in durability in a high-temperature fuel battery.