181results about How to "Promote complexation" patented technology

The invention discloses a composite solid polymer electrolyte and a preparing method and application thereof. The composite solid polymer electrolyte is prepared from a gadoleic acid ester monomer, a porous supporting matrix, lithium salt, an additive and an initiator, wherein the mass ratio of the gadoleic acid ester monomer to the additive is (1-10):1, the lithium salt accounts for 5-30% of the total mass of the gadoleic acid ester monomer and the additive, and the mass ratio of the initiator to the gadoleic acid ester monomer is (1-10):100. The composite solid polymer electrolyte prepared with the method has the advantages of being large in ion conductivity, high in mechanical strength, easy to form, stable in interface contact, high in electrochemical stability and easy to prepare and can be used for forming solid lithium ion secondary batteries, and the prepared solid lithium ion secondary batteries are high in safety, energy density and production efficiency.

The invention relates to an infant nutrition immunity formula powdered milk and a production method thereof, wherein, the production method of the infant nutrition immunity formula powdered milk comprises the following steps: milk which is raw material, is preprocessed, the mixed solution of docosahexaenoic acid and arachidonic acid is prepared, ingredients are mixed, preheating, homogenizing and heating are carried out for sterilizing, decompression is carried out for concentrating, and spray-drying under negative pressure and low temperature and drying on a fluidized bed are carried out, then cooling, packing and inspecting are carried out. The infant nutrition immunity formula powdered milk manufactured by the method of the invention mainly comprises casein phosphoeptide, vitamin D3, lactoferrin, nucleotide, linoleic acid, linolenic acid, the docosahexaenoic acid, the arachidonic acid, fructo-oligosaccharide and galacto-oligosaccharide, which has the advantage of reasonable trophic structure and also ensures that various nutrient substance to be absorbed and deposited to the utmost extend, so as to promote the development of brain and nervous system, improve active immunity, improve intestinal tract micro-ecological environment and strengthen the absorption of calcium, iron and zinc as well as effectively maintain every active nutrient component during the production process.

The invention discloses a method for reducing the content of cadmium in middle rice. The method includes the following steps that after middle rice of the first year is harvested, middle rice straw is returned to the field directly, and tillage is conducted so that the middle rice straw can be evenly mixed with soil; hyperaccumulation plants are planted in a paddy; after the hyperaccumulation plants are removed from March to May in the second year, soil heavy metal passivator is scattered on the surface of soil of the paddy; tillage is conducted, and base fertilizer is applied 3-5 days later; tillage is conducted, and rice is transplanted; during planting of rice, a foliar resistance control agent is sprayed in the later tillering stage and the booting stage of rice respectively, wherein spraying time interval is 5-10 days; field drying is conducted in the later tillering stage, natural drying is conducted in the maturation stage, and flooding irrigation is conducted in other development stages. According to the method, crop production and straw resource utilization are not affected, the dual targets of reducing the paddy soil cadmium content and reducing the rice cadmium content are achieved under the combined action of plant extraction, soil passivation, foliar resistance control and water management, and effects are more remarkable compared with other combination technologies.

The application of the invention provides an environmentally-friendly paper making and pulping technique with high yield, which comprises a raw material preprocessing stage, a physical fibrillation impregnating processing stage, an impregnating, steaming and bleaching three-section integrated pulping stage and a thickening and dewatering processing stage. An environmentally-friendly paper making and pulping system with high yield realizing the pulping technique comprises a stock cutter, a hammering and fibrillation screening dust remover, a washing dust remover, dewatering conveying equipment, a spiral steaming conveyor, a crashing, extruding and impregnating machine, a stirring and impregnating cabin, a pump pipe and a discharge pipe of a high-enriched steaming, bleaching and pulping all-in-one machine, wherein the pump pipe is connected to the high-enriched steaming bleaching pulping all-in-one machine; the discharge pipe of the high-enriched steaming, bleaching and pulping all-in-one machine is connected to a pulp cabin; the pump pipe of the pulp cabin is connected with a thickening and dewatering machine; the thickening and dewatering machine is output to the high-enriched pulping machine; the output of the high-enriched pulping machine is connected with a screening purifier and a thickening and squeezing machine in sequence. In the invention, the problems of high pollution, high energy consumption, serious shortage of paper making raw material and the like in present pulping and paper making industry can be solved fundamentally; rich plant fiber in the nature can be used, and the technical purposes of efficient bleaching, high yield, no black liquor and low energy consumption can be realized.

The invention discloses alloy nanoparticles, a preparation method and applications thereof. According to the method, a metal precursor loaded on a substrate is rapidly reduced at a high temperature, wherein the metal is rapidly nucleated to avoid the generation of the split-phase alloy so as to form the alloy nanoparticles with ultra-small particle size; and by controlling the types of the metal salts in the precursor, the components in the alloy nanoparticles can be effectively regulated. According to the present invention, the FeCoPtPdIr@GO (FeCoPtPdIr alloy particles are loaded on the surface of graphene oxide) prepared in the embodiments of the invention shows excellent electrochemical hydrolysis hydrogen production performance, can stably operate for 150 h under a condition of 10 mA.cm<-2>, has excellent electrochemical stability, and has the Faraday efficiency of 99.4%, wherein the eta 10 of the product of the present invention is equal to 42 mV, and far exceeds the eta 10 of thecommercial Pt / C of 64 mV (the smaller the eta 10, the better the electrochemical hydrolysis hydrogen production performance); and the new thought is provided in the preparation of alloy nanoparticlesand alloy nanometer catalysts, and the development of alloy nanometer catalysts in catalysis and energy is promoted.

The present invention is directed to polymeric compounds comprising a main backbone derived from at least the following monomeric components: (1) 20 to 99.9% by weight, preferably 50% to 99% by weight, of at least one cationic monomer according to formula (I), and (II) 0.1 to 80% by weight of a hydrophobic unsaturated nonionic monomer that polymerizes in the presence of an initiator, optionally a water-soluble monomer (III) different from either monomer (I) and monomer (II), and optionally a crosslinking agent (IV). Said compounds are particularly useful to overcome the problem of dye bleeding and / or dye transfer in laundry processes.

The invention belongs to the technical field of coating and particularly relates to a thermal insulation coating with excellent thermal insulation performance, water resistant performance, weather fastness and mechanical property and a preparation method thereof. The method comprises the following steps: loading rutile nano-titanium dioxide on the surface of the attapulgite to obtain the titanium dioxide / attapulgite nanocomposite material, organically modifying through a silane coupling agent and carboxylic acid, copdymerizing with styrene and acrylic monomer to prepare the modified styrene-acrylic emulsion, and adding micron titanium dioxide, glass bead, far infrared ceramic powder, a moist disperser, a defoamer, a coalescing agent and water to obtain the thermal insulation coating with excellent thermal insulation performance, water resistant performance, weather fastness and ultraviolet resistance ability.

The invention relates to technology for preparing a super-hydrophobic surface, in particular to a simple and convenient method for preparing a super-hydrophobic film on the surface of a metal matrix. The super-hydrophobic film is prepared by the following steps of: cleaning the surface of the metal matrix with ethanol and de-ionized water and drying the surface of the metal matrix for later use; applying current or voltage to the cleaned matrix and a platinum electrode serving as a cathode in 10<-1> to 1mol / L ethanol solution of fatty acid CH3(CH2)nCOOH (n is equal to 10 to 16) by an electrochemical method; and forming a fatty acid-metal complex film on the surface of the anodic metal matrix after processing and drying the film to obtain the super-hydrophobic film. The method has the advantages of simple and easy operation and no need of expensive equipment. The prepared super-hydrophobic surface is expected to be applied to the fields of metal corrosion resistance, water resistance, self-cleaning and the like.

The invention discloses a preparation method of manganous-manganic oxide. Manganese metal powder is manufactured into manganous-manganic oxide with high purity and high specific surface area by using a two-step method in the presence of an organic acid catalyst or an organic acid amine salt catalyst. In the first step, the manganese powder is added into a solution containing the catalyst and hydrolyzed and reacted for a period of time, and all manganese powder is completely converted into hydroxide of the manganese; and in the second step, a suspension containing the hydroxide of the manganese is oxidized by air, filtered and dried by airflow so as to obtain solid powder of the manganous-manganic oxide, and a filter liquor is continuously used after being supplemented with a little amount of lost catalysts. The catalyst is characterized by being the organic acid or the amine salt of the organic acid; through adoption of the catalyst, the reaction speed can be increased, impurities in a product are reduced, the purity of the product is improved, the specific surface area of the product is increased and the manganous-manganic oxide with high purity and high specific surface area can be obtained.

The present invention is directed to polymeric compounds comprising a main backbone derived from at least the following monomeric components: (I) 20 to 99.9% by weight, preferably 50% to 99% by weight, of at least one cationic monomer according to formula (I), and (II) 0.1 to 80% by weight of a hydrophobic unsaturated nonionic monomer that polymerizes in the presence of an initiator, optionally a water-soluble monomer (III) different from either monomer (I) and monomer (II), and optionally a crosslinking agent (IV). Said compounds are particularly useful to overcome the problem of dye bleeding and / or dye transfer in laundry processes.

The present invention relates to a scale preparation method of microbial pre-fermentation coating multilayer microcapsule, and belongs to the fields of microbial technology and biotechnology. The method takes sodium alginate, calcium chloride and modified chitosan as the coated materials of microcapsule, wherein the deacetylation degree of the modified chitosan is more than 90% and molecular weight is about 40000; the method comprises the following steps of (1) preparing single-layer microcapsule and (2) preparing multilayer microcapsule. When performing second coating, a film of low concentration chitosan is formed, the amount of chitosan is little, and almost all of chitosan molecules can react with calcium alginate gel for polyelectrolyte complexation reaction, therefore, the compact film with good toughness can be easily formed; the film is thickened and the mechanical strength is increased along the increase of the chitosan concentration. Furthermore, the process is more convenient to reuse a buffer solution for dissolving chitosan, so as to reduce production costs.

The invention discloses a preparation method of silicon dioxide@ quantum dot composite nanoparticles. The method comprises steps as follows: thiolation silicon dioxide nanoparticles are prepared firstly, and the silicon dioxide@ quantum dot composite nanoparticles are prepared with a hydrothermal method. The preparation method is simple and easy to implement, high in yield and efficiency and beneficial to large-scale production. The prepared silicon dioxide@ quantum dot composite nanoparticles comprise silicon dioxide balls with particle sizes of 50-800 nm and quantum dot particles loaded on the silicon dioxide balls. The excellent fluorescence property of quantum dots is preserved, centrifugal separation of the particles is facilitated due to the fact that the quantum dots are loaded on silicon dioxide, the aftertreatment steps during use of the quantum dots are greatly optimized and simplified, and the preparation method has a broad application prospect.

The invention discloses a technology for advanced oxidization treatment of wastewater through complex ferrous activated persulfate or hydrogenperoxosulfate by multicomponent blending, and belongs to the field of water pollution control technology. According to the technology, a blending complexing agent is selected according to different water quality, and the mixing ratio of the blending complexing agent is controlled; the coordination space of active center irons is fully utilized to improve the stability of a complex compound, and thus the organic matter treatment efficiency of complex Fe2<+> catalyzed and activated sulfate or hydrogenperoxosulfate can be effectively improved. By blending, the pH (Potential of Hydrogen) range of complex Fe2<+> catalyzed and activated sulfate or hydrogenperoxosulfate is further expanded, relatively high pollutant removal rate can be kept at high pH condition, and the output of iron cements is decreased. The novel technology for the advanced oxidization treatment of the wastewater through complex ferrous activated persulfate or hydrogenperoxosulfate by multicomponent blending is high in efficiency, easy in operation, and applicable to the water treatment technology of organic wastewater with high pH (Potential of Hydrogen), and has a wide application potential in the field of advanced treatment of the wastewater.

The invention relates to a method for synthesizing powder of cadmium selenide quanta dots capable of emitting blue light, belonging to the technical field of processing nanometer inorganic compound material of semiconductor. With cadmium acetate dehydrate and sodium selenite as raw material, disodium ethylenediamintetraacetate as chelating agent, and in the aqueous solution with weak alkaline, cadmium selenide quanta dots are synthesized by being radiated by electron beams. The powder of cadmium selenide quanta dots is obtained after separating the synthesized product. The cadmium selenide powder prepared by the invention has extremely good water solubility, good monodispersity, and even size with an average particle size of three nanometers. The cadmium selenide powder emits blue light, has good fluorescence characteristics and is used for manufacturing biological fluorescence probe.

The invention discloses a method of using a graphene sheet and carbon nano tube three-dimensional compound for adsorbing heavy metal in water. The method includes the following steps that a, under the condition of continuous stirring, a graphene sheet and carbon nano tubes are fully mixed in organic solvent to form a graphene sheet and carbon nano tube three-dimensional compound solution; b, the graphene sheet and carbon nano tube three-dimensional compound is added into sewage containing heavy metal ions and are continuously stirred under room temperature until the formed mixed reaction system reaches an adsorption equilibrium state, and then the mixed reaction system is still standing; c, the graphene sheet and carbon nano tube three-dimensional compound is separated through an applied magnetic field to purify the sewage. Compared with the prior art, the method has the advantages of being simple, environmentally friendly, free of pollution and capable of treating multiple kinds of heavy metal ions, many kinds of heavy metal ions can be treated, and the removal rate is 98% or more; the graphene sheet and carbon nano tube three-dimensional compound can be recovered through the magnetic field and used repeatedly and is low in cost.

The invention relates to a method for recovering germanium from germanium-containing materials, particularly relates to a method for recovering germanium from germanium-containing materials of non-ferrous smelting industry, and belongs to the technical field of hydrometallurgy. The method comprises the steps of leaching germanium-containing materials as raw materials of which the particle sizes are 100 meshes with inorganic strong acid as an leaching agent of which the concentration is 50-120g / L and an aid-leaching agent at 35-95 DEG C and filtering to obtain a germanium-containing leaching solution, adjusting the pH value of the germanium-containing leaching solution to be 6-9, stirring and carrying out liquid-solid separation to obtain germanium residues, and calcining the germanium residues at 350-500 DEG C to obtain a crude germanium dioxide product, wherein the aid-leaching agent is one of tartaric acid, water-soluble tartrate, citric acid, water-soluble citrate, oxalic acid and water-soluble oxalate. The method disclosed by the invention has the advantages of simple process, easiness in operation, high recovery ratio of germanium, large enrichment ratio, and convenience in industrial production and application.

The invention discloses a preparation method for composite activated biochar capable of adsorbing heavy metal ions in sewage. According to the preparation method, a saponification-modified orange peelbio-adsorbent, an obtained pine needle-based carbon material, puffed rice husks, a chestnut shell activated carbon material and walnut green husk biochar are uniformly mixed so as to obtain the composite activated biochar. The preparation method has the advantages that pine needles serve as a carbon source, alkali treatment is carried out, then carbonizing is carried out, so that the pine needle-based carbon material with developed pore channel structures and high nitrogen content is successfully prepared, by means of the developed pore channel structures and rich nitrogen-contained functional groups, and the prepared pine needle-based carbon material shows good adsorption performance on the metal ions and has good repeated use performance; chestnut shells serve as a raw material, activated carbon is prepared by adopting a ZnCl2 activation method, the chestnut shell activated carbon is an amorphous carbon material with more pores; and biological waste orange peels serve as a raw material, and ethanol and sodium hydroxide treatment are carried out so as to obtain the modified orange peel biological adsorbent.

The invention relates to a scouring agent for cotton. The scouring agent is prepared from 9-16 parts of high-molecular polymer, 8-18 parts of AEO-9, 8-14 parts of Sodium secondary alkyl sulfonate, 6-10 parts of ricinoleic acid butyl ester sodium sulfate, 12-19 parts of FMES, 3-6 parts of ethylene glycol monobutyl ether, 7-15 parts of isomeric alcohol ethoxylate and 350-420 parts of deionized water. During preparation, the deionized water is added into a stirrer, then AEO-9 and isomeric alcohol ethoxylate are added, the temperature is increased to 50 DEG C, and stirring and dissolving are conducted; then SAS60, ricinoleic acid butyl ester sodium sulfate, FMES, ethylene glycol monobutyl ether and high-molecular polymer are added and evenly stirred, and the scouring agent can be obtained. The scouring agent for cotton has good alkali resistance, permeability, cleaning performance, emulsification performance, dispersity, oil removing performance and the like, does not contain APEO, and is environmentally friendly.

The invention discloses a cleaning agent and application thereof to cleaning of ceramic filter plates. The cleaning agent mainly comprises the following components: metal ion complexing agent, organicpenetrant, main agent A and main agent B, the main agent A is at least one of water-soluble organic acid, and the main agent B is soluble salt corresponding to the main agent A. The main agent B in the cleaning agent can promote the insoluble metal salt of the main agent A to be dissolved into aqueous solution, so that the cleaning effect is enhanced, the metal ion complexing agent and the organic penetrant can generate a synergistic effect, so that fine particle-sized metallic minerals blocking filter holes can be dissolved and insoluble attachments and organic chemicals can be cleaned off,consequently, a ceramic plate can be fully and thoroughly cleaned, the production efficiency of a ceramic filter is improved, the service life of the filter plate is prolonged, and the production costis reduced.

The invention discloses a humic acid bagging-free film bag and a preparing method and use method thereof. The preparing method includes: dissolving SiO2 in an acetic acid aqueous solution, adding chitosan, fully dissolving the chitosan, adding glycerinum, and acquiring a chitosan complex mother liquor; acquiring a potassium humate solution, and dissolving a certain amount of bottle gourd pakistan rubber in the potassium humate solution; mixing the chitosan complex mother liquor and the potassium humate solution with the bottle gourd pakistan rubber with stirring, evenly stirring the two solutions so as to acquire a novel high efficiency multifunctional humic acid bagging-free film bag mother solution which has an anti-freezing function, an antibacterial function, and an anti-pest function, and can provide nutriment matters, using water to dilute the mother solution, and directly spraying surfaces of fruits with the diluted mother solution to form films. The humic acid bagging-free film bag is non-toxic, is harmless, is easy to use, can avoid plastic pollution and complex operations due to the conventional bags, can allow the fruits to resist cold weather, bacteria, and pests, can provide desired nutriment matters for the fruits during a growth development process, and can effectively improve the quality of the fruits.

The invention belongs to the technical field of fertilizers, and in particular relates to a lignin slow-release water-soluble fertilizer and a preparation method thereof. The lignin slow-release water-soluble fertilizer is prepared by adding a strong activating agent into an organic straw liquid, lignin, lignin-degrading enzyme; when the lignin is solid lignin, the weight parts of the organic straw liquid, the solid lignin and the lignin-degrading enzyme are 60-90 parts of the organic straw liquid, 10-40 parts of the solid lignin and 1-3 parts of the lignin-degrading enzyme; when the lignin is liquid lignin, the weight parts are 10-30 parts of the organic straw liquid, 70-100 parts of the liquid lignin and 1-3 parts of the lignin-degrading enzyme. The lignin slow-release water-soluble fertilizer provided by the invention has a slow-release function and water-soluble fertilizer properties as well, environmental pollution caused by comprehensive utilization of biomass raw materials is reduced, problems that a conventional slow-release water-soluble fertilizer is high in production cost, incomplete in nutrient component, relatively poor in fertility and the like can be solved, and modern organic planting of integral water and fertilizers can be achieved.

The invention discloses a cerium modified calcium-based bifunctional particle and a preparation method. The calcium-based bifunctional particle comprises CeO2, CaO and NiO, wherein a mass ratio of CeO2 to CaO is 0.03-0.07: 1, and a mass ratio of Ni to CaO is 0.1-0.2: 1. The calcium-based bifunctional particle is prepared by dissolving calcium acetate, cerium nitrate hexahydrate, nickel nitrate hexahydrate and citric acid, then carrying out drying and calcining and finally carrying out mechanical crushing and sieving. According to the invention, calcium acetate is used as a precursor of CaO and can be dissolved in deionized water, which is beneficial for full mixing of calcium acetate, cerium nitrate, nickel nitrate and citric acid, and thus, a variety of substances in the prepared bifunctional particle are uniformly distributed; through addition of citric acid in an aqueous solution, complexation of ions like Ca<2+> is facilitated, and formation of tiny channels in the particle is promoted in the process of calcining, which is favorable for improving carbon dioxide adsorption by CaO; and according to results of experimental study, doping of Ce (5w%) for modification is more beneficial for improving maximum carbon dioxide adsorption compared with doping of Y(5w%) and Zr(5w%).

The invention provides a melastoma dodecandrum lour planting method, and particularly relates to the technical field of plant cultivation. The method adopts a mode for planting melastoma dodecandrum by using a seedling solution for rooting culture of cutting strips. Firstly, the cutting strips are placed and soaked in rooting water, cultivating and rooting are conducted with the seedling solution,field planting is conducted in a planting field, when water and fertilizer management is carried out, a vine enhancing agent and a fruit promoting agent are sprayed at the right time, the rooting rate of the cutting strips is over 98%, the total flavonoid content of active ingredients of a plant is above 35mg / g, which makes fruits have a heavy weight, enough sweetness and high yield, the shelf life of fresh fruits is prolonged to more than 20 days, so that the fresh fruits keep the original taste and freshness and do not easily rot, and the planting method is green, environmentally friendly,easy to operate, convenient to manage and suitable for scale and industrialization popularization.

The invention provides a method for preparing RuO2-SnO2 oxide completely composed of nanoscale rutile phase by using RuCl3, SnCl2 and SnCl4 as precursors. The ratio of RuO2:SnO2 in the titanium anode coating prepared by the invention is 1:4-4 : 1, the surface coating of the titanium substrate is entirely composed of nanoscale rutile phase RuO2-SnO2 oxide or solid solution, and its specific surface area exceeds 460m2·g-1; and the raw materials are easy to obtain and the method is simple.

The invention discloses a preparing method of a sulfonated fatty acid phosphate rock reverse flotation collecting agent. Firstly, palmitic acid and stearic acid are used for preparing mixed high-grade aliphatic acid according to the mass ratio of 0.3-0.6:1, the mixed high-grade aliphatic acid and concentrated sulfuric acid have a reaction according to the mass ratio of 1:0.1-0.8 to prepare alpha-sulfonated fatty acid, finally, according to the weight ratio of 3-6:1.5-4:1-3, the alpha-sulfonated fatty acid, saturated fatty acid and the strong base are mixed and react, and water is added for preparing a solution with the certain solid content. According to the method, the characteristic that a polarity sulfonic acid group of the alpha-sulfonated fatty acid can be used for enhancing complexing of carboxylic acid and calcium magnesium plasmas to form a stable coordination compound is used for achieving the aim of removing gangue minerals in pulp; meanwhile, the sulfo group introduced by the alpha position of fatty acid is the hydrophilic carboxy group, and therefore solubleness of the collecting agent at the low temperature can be greatly improved, the low-temperature resistance capacity of the collecting agent is improved, efficient floatation can be achieved at the normal temperature, and energy consumption is greatly reduced. The collecting agent has the good floatation effect on the medium-low-grade high-magnesium hard-selection phosphorite.

The invention relates to the field of concrete, and particularly discloses green high-strength and high-toughness concrete and a preparation process thereof. The green high-strength and high-toughness concrete is prepared from the following raw materials in parts by weight: cement, fly ash, mineral powder, natural aggregate, modified regenerated aggregate, water, an additive and composite fibers, a preparation method of the modified regenerated aggregate comprises the following steps: weighing waste concrete blocks, pretreating to obtain regenerated aggregate, putting the regenerated aggregate into a sodium gluconate solution, stirring and soaking, then taking out the regenerated aggregate, and performing drying post-treatment to obtain the modified regenerated aggregate; the preparation method comprises the following steps: weighing the cement, the fly ash and the mineral powder, mixing and stirring to obtain a premix; weighing the natural aggregate, the modified regenerated aggregate and the composite fiber, stirring and mixing to obtain a mixture; weighing the water, the additive, the premix and the mixture, mixing and stirring to obtain a mixture, and pouring and curing to obtain the concrete, the concrete has the advantages of greenness, high strength and high toughness.

The invention provides a stabilization repairing agent for soil pollution, wherein the agent includes components such as quicklime, potassium dihydrogen phosphate, phosphate rock powder and demineralized and modified humic acid, and is prepared from, by mass, combination of the components. After the stabilization repairing agent is applied to soil contaminated by lead and cadmium and is subjectedto stabilized treatment and maintenance for one week, the concentration of lead and cadmium in a leach liquor of the soil can meet standards of groundwater quality class IV. The mixed component in thestabilization repairing agent of the invention fully exerts a synergistic effect, the effective state of heavy metals in the soil can be reduced by the action of precipitation, adsorption, improvement, pH adjustment, and the like, and the prepared soil repairing agent has good effects in repairing lead and cadmium contaminated soil. The stabilization repairing agent for the soil pollution has theadvantages of simple preparation method, feasibility and good treatment effect.

The invention discloses a device for desulfuration and decyanation treatment of waste liquid generated in the vacuum potassium carbonate desulfurization process.The device comprises a desulfuration and decyanation agent tank, a coagulant tank, a reaction pond, a settling pond and a catalytic oxidation reaction tank, wherein the desulfuration and decyanation agent tank and the coagulant tank are both communicated with the reaction pond, an inlet of the reaction pond is communicated with a waste liquid pipeline, and an outlet of the reaction pond is communicated with the settling pond; the upper portion of the settling pond is communicated with the coagulant tank, a sludge outlet of the settling pond is communicated with a sludge treatment system, a liquid outlet of the settling pond is communicated with the top of the catalytic oxidation reaction tank, and the lower portion of the catalytic oxidation reaction tank is communicated with an ozonator.The invention further discloses a method for desulfuration and decyanation treatment of waste liquid generated in the vacuum potassium carbonate desulfurization process.The device and method have the advantage that by additionally arranging a first aeration plate and a second aeration plate, waste liquid can fully react, the problem that the cyanide group and thiocyanate group in waste liquid exceed the standard is solved, and engineering application value is quite high.