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37results about How to "With adsorption capacity" patented technology

Method for preparing modified biochar with aquatic plant waste and hematite

The invention belongs to the field of biochar adsorbing materials, and relates to a method for preparing modified biochar with aquatic plant waste and hematite. The method includes the following steps: (1) naturally drying aquatic plants prior to crushing to obtain aquatic plant powder; (2) crushing the hematite to obtain hematite powder; (3) weighing the hematite powder prior to putting the hematite powder into deionized water, and performing ultrasonic treatment to obtain suspension; (4) weighing the aquatic plant powder, soaking the aquatic plant powder in the suspension, and stirring and drying to obtain fully mixed aquatic plant and hematite mixture; (5) weighing the fully mixed aquatic plant and hematite mixture, putting the mixture in a batch-type atmosphere furnace, and feeding nitrogen into the furnace; performing temperature programming to the target temperature, and maintaining final-temperature pyrolysis; after the pyrolysis process is finished, obtaining the target product, namely the modified biochar. The modified biochar has strong adsorbability in nitrate and phosphate, high in stability and reusable.
Owner:LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY

Synthesis method of shell starch microsphere

This invention relates to a synthetic method of hud type starch microsphere. First carry out fully microwave dispersing to titanium dioxide, sodium silicate and de-ionized water, obtain TiO2 gel; blend soluble starch and de-ionized water, gain starch solution; intensive mixing cyclohexane, initiator, emulsifying agent, add TiO2 gel, then add cross-linking agent N, N -methylene bisacrylamide and starch solution, take reaction for 3 to 4 hours; finally stop whip, cooling, standing, by centrifugal to remove oil phase; use ethyl acetate, acetone, dehydrated alcohol in turns and abundantly to wash obtained precipitate, gain white go as far as yellowish product, vacuum drying.
Owner:XIAN MEDICAL UNIV +1

Floating raft-anchoring device applicable to silty bottoms

The invention discloses a floating raft-anchoring device applicable to silty bottoms. The floating raft-anchoring device is characterized in that: the floating raft-anchoring device comprises a sunken cement block (1), the longitudinal section of which is trapeziform, a holding anchor (2) is longitudinally arranged in the sunken cement block (1), the bottom end of the holding anchor (2) is located outside the sunken cement block (1), the part of the holding anchor (2), which is located in the sunken cement block (1), is provided with a cross-shaped beam (3) as well, the cross-shaped beam (3) is perpendicular to the holding anchor (2), an anchor ring (4) which is located outside the sunken cement block (1) is also fixed on the top end of the holding anchor (2), and rubber rope rings (5) are arranged on the top of the sunken cement block (1) as well. The structure of the floating raft-anchoring device is simple, the design is ingenious, and the floating raft-anchoring device can provide high anchoring force for a raft or an aquaculture net cage, and can ensure that raft aquaculture is safe and smooth.
Owner:DALIAN OCEAN UNIV +1

Adsorption preparation for wastewater treatment and preparation method thereof

The invention discloses an adsorption preparation for wastewater treatment. The adsorption preparation for the wastewater treatment is prepared from the following raw materials in parts by weight: 14-18 parts of aluminum sulfate, 19-20 parts of oxalic acid, 22-25 parts of polyacrylamide, 16-18 parts of sodium carbonate, 9-17 parts of activated carbon, 10-16 parts of calcium aluminate, 5-8 parts of ammonium sulfate, 4-11 parts of sodium metaaluminate, 12-14 parts of calcium disodium versenate, 9-16 parts of potassium ferrate, 8-10 parts of polyvinylpyrrolidone, 3-4 parts of sodium carbonate, 9-14 parts of ferric citrate, 8-10 parts of polysulfide ferric chloride, 2-5 parts of cellulose powder, 3-8 parts of sodium lignosulphonate, 1-2 parts of dibenzoyl peroxide, 7-14 parts of nano-manganese oxide, 16-24 parts of guanidine sulfate, 22-25 parts of dodecyl triphenyl phosphorus chloride and 9-16 parts of isopropanol. The adsorption preparation for the wastewater treatment provided by the invention has a sterilizing function, and has the advantages of small material density and high processing efficiency.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI

Preparation method and application of metal ion medium diosgenin imprinted polymer

The invention discloses a preparation method of a metal ion medium diosgenin imprinted polymer and a method for purifying diosgenin in a yellow ginger rough extracting liquid. The preparation method of the metal ion medium diosgenin imprinted polymer comprises the following steps: adding diosgenin, 4-vinyl pyridine, metal cobalt (II) ions, dimethyl sulfoxide and acetonitrile to a container, and carrying out ultrasonography to prepare a prepolymerization liquid; then standing; then adding EDMA (Ethylene Glycol Dimethacrylate) and AIBN (Azobisisobutyronitrile), introducing argon gas, uniformly mixing, sealing, and reacting in a 60 DEG C water bath for 24 hours; after the polymerization is completed, grinding, screening, and depositing by using methanol and acetone; and then eluting template molecule diosgenin by using a solvent, and carrying out vacuum drying so as to obtain the metal ion medium diosgenin imprinted polymer. The diosgenin molecular imprinted polymer obtained through the preparation method has higher selective adsorption capacity on diosgenin molecules, can be used for the solid phase extraction of diosgenin and is suitable for the need of certain special occasions.
Owner:河北汇正生物科技有限公司

Water treatment composite flocculating agent and application thereof

The invention belongs to the sewage treatment field, and especially relates to a water treatment composite flocculating agent and an application thereof. The flocculating agent is obtained by compounding a plurality of flocculating agents, and comprises 70-89wt% of polyaluminum chloride, 10-30wt% of an aluminum salt and 0.1-2wt% of an iron salt. The composite flocculating agent has the large strength characteristic of an inorganic flocculating agent, also has the bridge formation, network bashing, strong sweeping capability and large floc of an organic flocculating agent, and overcomes the disadvantages of low floc strength and large consumption of organic flocculating agents.
Owner:SCIMEE TECH & SCI CO LTD

Preparation method and application of aquatic plant charcoal-carbon nanotube composite material

The invention relates to a preparation method and application of an aquatic plant charcoal-carbon nanotube composite material. The preparation method comprises the following steps that aquatic plant charcoal and carbon nanotube suspension liquid are mixed and stirred sufficiently, then, drying and pyrolysis are carried out, and the aquatic plant charcoal-carbon nanotube composite material is obtained. The carbon nanotube suspension liquid is suspension liquid obtained by carrying out ultrasonic treatment on carbon nanotube powder put in deionized water. The aquatic plant charcoal and the carbon nanotube suspension liquid are fully mixed and dried, and then the aquatic plant charcoal-carbon nanotube composition material is obtained under the anaerobic high-temperature condition. The composite material prepared through the method can effectively adsorb a large amount of Pb and Cu in water. The composite material prepared through the method can be added into soil with exceeding Pb and Cu to reduce the bioavailability of the Pb and Cu in the soil, and the purpose of resisting and preventing heavy metal is achieved.
Owner:LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY

Coral powder ecological functional interior wall material

The invention relates to healthy, environmental-friendly and functional interior wall material, namely, a coral powder ecological functional interior wall material. The coral powder ecological functional interior wall material is prepared from coral powder, talc powder, ash calcium, bentonite, quartz powder, polyvinyl alcohol powder, tetrapod-shaped zinc oxide whiskers, hydroxypropyl methyl cellulose, vinyl acetate, titanium dioxide, polycarboxylate superplasticizer and antifoaming powder. The main raw (auxiliary) materials are inorganic materials with mineral components, and the master batchis calcined to form a porous structure. By adopting the tetrapod-shaped zinc oxide whiskers, free harmful gases such as formaldehyde, toluene, ammonia and TVOC in air can be adsorbed in a long term, and a decomposing and purifying effect is realized to avoid harm to human health and pollution to indoor environment; due to the special functions of the product, the product has the characteristics ofair purification, indoor humidity adjustment, bacteria resistance and bacteriostasis, release of negative oxygen ions, release of mineral trace elements, long service life and the like; the physicalperformance indexes can be ensured to meet the requirements, and the due special properties of the product are obtained.
Owner:佟朝富

Biological calcium type phosphate radical adsorption porous material and preparing method thereof

The invention discloses a biological calcium type phosphate radical adsorption porous material and a preparing method thereof. The preparing method comprises the steps: taking cement, microsilicon powder, oyster shell and egg shell as raw materials, grinding processed oyster shell and egg shell into tiny particles, adding the cement and microsilicon powder to prepare a cement slurry, then preparing foam, finally mixing mortar with the foam, pouring and performing autoclaved curing to obtain the biological calcium type phosphate radical adsorption porous material. According to the method, waste resources of the common Portland cement, the microsilicon powder generated by a ferroalloy smelting plant, the egg shell generated by agricultural products and the oyster shell generated in fishery production are taken as raw materials to develop the biological calcium type phosphate radical adsorption porous material, which has durable and efficient phosphorus adsorption capacity and realizes waste control by waste, due to the porous structure and well biocompatibility, an apposition growth occasion is provided for water organisms, and the preparing method of the material is simple, effective, low in cost and easy to popularize, and has well economic and environmental benefits.
Owner:FUZHOU UNIV

Preparation method of polymeric material by utilizing monosaccharide and methyl methacrylate or methyl acrylate

The invention discloses a preparation method of a polymeric material by utilizing monosaccharide and methyl methacrylate (or methyl acrylate). The preparation method is characterized by comprising the following steps of: dissolving 1-10 parts by weight of monosaccharide in 5-15 parts by weight of distilled water, adding 0.1-3 parts by weight of initiator potassium peroxydisulfate, stirring for mixing, and adding 1-50 parts by weight of methyl methacrylate (or methyl acrylate), to obtain a reacting mixture; reacting the reacting mixture for 1-10 hours under the temperature condition of 20-100 DEG C while stirring, and naturally cooling into room temperature, to obtain a material after reaction; and smashing the material after reaction, washing with water, and drying, so as to obtain a polymeric material product, wherein the monosaccharide can be one or a mixture of at least two of mannose, glucose, fructose and galactose. After the preparation method is adopted, the prepared polymeric material comprises a plurality of lone pair electrons-containing adsorption sites, has certain complexing power with metal ions, and can be directly used for treating heavy metal ion waste water.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Purifying device for alkaline pollutant gases

The invention belongs to the technical field of atmospheric pollution control and discloses a purifying device for alkaline pollutant gases. The purifying device comprises a purifying tank of which the upper part is provided with a gas outlet and the lower part is provided with a gas inlet; an adsorptive purification unit is arranged in the purifying tank and comprises a supporting plate which ishorizontally and fixedly arranged in the purifying tank; a plurality of ventilation holes are formed in the supporting plate; a filter bag for filtering gas is arranged in each ventilation hole and the top end of each filter bag is arranged in an open manner; the height of the gas outlet in the vertical direction is higher than the height of the top end of the filter bag. According to the device,the alkaline pollutant gases entering the purifying tank are in full contact in the purifying tank by using a filter material in the adaptive purifying unit, and fine particles such as dust in the pollutant gases and alkaline harmful gases such as ammonia and polyamine are captured by a chemical adsorption principle, thereby realizing purification of the pollutant gases; in addition, a purifying effect is good.
Owner:HENAN ACADEMY OF SCI CHEM RES INST CO LTD

Differential type metal particle drying device

The invention discloses a differential type metal particle drying device, and belongs to the field of drying, according to the differential type metal particle drying device, through the arrangement of a differential drying cylinder, in the interval rotation process of the differential drying cylinder, metal powder continuously enters pocket cloth and is rapidly gathered under the action of centrifugal force, therefore, the pocket cloth extends outwards and collides with a powder throwing collision strip, on one hand, caked metal powder is effectively broken and eliminated through collision, compared with the prior art, the caking rate of the metal powder is remarkably reduced, on the other hand, during collision, the metal powder in the pocket cloth is thrown out under the action of collision force and is quickly dispersed outwards, the metal powder is always in a dispersed dynamic state, meanwhile, the dispersion range is expanded, so that the full contact between the differential type metal particle drying device and the metal powder is remarkably improved, and the drying efficiency and the drying uniformity are greatly improved.
Owner:南通江勤美金属制品有限公司

Method for synthesizing solvent green 5

The invention discloses a method for synthesizing solvent green 5 with high conversion ratio and high quality. The method mainly comprises improvement and enhancement of two aspects, such as enhancement of a conversion rate in an acylation reaction (production of acyl chloride) and scientific and reasonable refining of crude solvent green 5. The acylation reaction is an initial reaction for synthesizing the product, the enhancement of the reaction conversion ratio is to enhance the utilization ratio of an initial raw material, perylene diacid from the product synthesis source, the purity of the product, namely the acyl chloride, in the acylation reaction is increased, and a foundation is preferentially laid for improving the product quality. Moreover, during refining of the crude product,the crude product is adsorbed and refined by adopting two adsorbents with different adsorption mechanisms and different adsorption capacities, so that the product quality is effectively improved.
Owner:连云港锐华化工有限公司

Embedded bacterium mulberry fertilizer and preparation method thereof

The invention discloses an embedded bacterium mulberry fertilizer and a preparation method thereof. The fertilizer is composed of microbial inoculum, agar powder, potassium sulfate, urea, ammonium humate, potassium permanganate, calcium-magnesium-phosphate fertilizer, clay, microbial embedding medium, and a proper amount of water. Research results show that a mixture, which is prepared by mixing sodium alginate and polyvinyl alcohol according to a certain ratio, has a prominent advantage on embedding microbes; moreover, an ionic modifier and resin monomers are added to increase the mechanical strength of embedding, embedding speed, and living rate of live bacteria; the chemical components are grinded at first and then wetted, then processed chemical components are mixed with embedded particles, which are composed of sodium alginate and resins, so the fertilizer has a certain absorbing performance and sustain-released performance, the fertilizer loss is reduced, and the fertilizer utilization rate is increased by adding soil microbes.
Owner:安徽省善田有机农业有限责任公司

Shape memory porous material and preparation method and application thereof

InactiveCN113214533AEasy to prepareEasily regulated structureBiocompatibilityDust particles
The invention relates to the field of shape memory materials, and in particular, relates to a shape memory porous material and a preparation method and application thereof. The invention provides the shape memory porous material. The preparation method of the shape memory porous material comprises the following steps: physically adhering a coating material and a porous material base material, wherein the coating material is a shape memory polymer. The shape memory sponge is simple in preparation method, and the structure and the performance are easy to regulate and control; the prepared shape memory porous material has the shape memory characteristic, is large in volume change, good in biocompatibility and non-toxic to a human body, and can be widely applied to the fields of medical care, textile and clothing, catalysis, aerospace, unmanned driving, heat insulation foam, oil stain absorption or dust particle absorption and the like.
Owner:SHENZHEN UNIV

Adsorbing-growing aqueous phase heavy metal adsorbing material and preparation method and application thereof

The invention discloses an adsorbing-growing aqueous phase heavy metal adsorbing material and a preparation method and application thereof. The preparation method comprises the following steps: ball-milling and mixing pre-treated aluminum manufacturer sludge, oyster shell powder, silica powder and graphite powder, uniformly mixing, pelleting, staling, molding and sintering, performing hydrothermal reaction with a phosphoric acid solution, and drying to obtain the adsorbing-growing aqueous phase heavy metal adsorbing material. Waste resources such as aluminum manufacturer sludge in a waste aluminum profile manufacturer, silica powder produced by an iron alloy smelting plant and oyster in the farm produce fair are used as raw material to develop the adsorbing-growing aqueous phase heavy metal adsorbing material, so that the heavy metal ions in the sewage can be effectively adsorbed, and the problem of heavy metal water pollution is solved. The waste is used for treating the pollution, the waste recovery is reasonably realized, and the raw material cost is greatly reduced; the preparation method is simple, low in cost and easy to popularize, and capable of promoting the sustainable coordinatable development of the social economy and the environment.
Owner:FUJIAN XINSEN CARBON

A kind of flocculant formulation and its preparation process for aquaculture sewage treatment

The invention relates to a formula and a preparation process thereof and in particular relates to a flocculant formula for treating sewage in a breeding industry and a preparation process of the flocculant formula. The invention aims to provide the flocculant formula with the characteristics of environmental protection, good use effect and low dosage for treating sewage in the breeding industry and the preparation process of the flocculant formula. The flocculant formula for treating the sewage in the breeding industry is prepared from the following components in percentage by mass: 8 to 13 percent of polysilicate ferrite (PSF), 10 to 15 percent of methacrylic acid, 2 to 8 percent of chlorate, 1 to 6 percent of silane coupling agent and the like. The preparation process comprises five steps. According to the flocculant formula disclosed by the invention, the effects of facilitation for environmental protection, good use effect and low dosage are realized; the flocculant is low in dosage and has good flocculation effect; the method is simple, easy to operate and cost-saving; in addition, colloidal particles can be strongly adsorbed; the condensation can be achieved by adsorbing, bridging and cross-linking effects.
Owner:捷艾悉环保科技(上海)有限公司

Isolation fiber fabric for automobile engine turbocharging workshop

InactiveCN109576862AReduces flying debris and dust generationReduce generationWoven fabricsYarnFiber
The invention discloses an isolation fiber fabric for an automobile engine turbocharging workshop. The isolation fiber fabric forms vertical surrounding for isolating dust in production. The isolationfiber fabric is prepared from, by weight, 20-30 parts of cotton fiber, 15-20 parts of Babai yarn, 5-8 parts of plush, 10-20 parts of mint powder, 5-10 parts of acetate fiber, 7-10 parts of electrostatic fiber, 2-5 parts of alpha-olefin sulfonate, 5-10 parts of a fiber stabilizer, 10-20 parts of garlic powder and 11-15 parts of spandex. According to the isolation fiber fabric, a turbocharger production line is isolated through a specific structure, flying chips and dust are effectively reduced by means of a special material, and certain adsorption capacity is realized.
Owner:邓立山

A differential-speed metal particle drying device

The invention discloses a differential-speed metal particle drying device, which belongs to the field of drying. A differential-speed metal particle drying device, through the setting of a differential-speed drying cylinder, during the interval rotation process, metal powder continuously enters the shawl inside, and gather quickly under the action of centrifugal force, so that the shawl extends outward and collides with the powder throwing bar. On the one hand, through the collision, the metal powder that is effectively broken and eliminated is significantly reduced compared with the prior art The agglomeration rate of the metal powder, on the other hand, during the collision, the metal powder in the pocket cloth is thrown out under the action of the collision force, and quickly disperses outward, so that the metal powder is always in the dynamic state of dispersion, and at the same time expands the dispersion range, thereby significantly Improve its full contact with metal powder, greatly improve drying efficiency and drying uniformity.
Owner:南通江勤美金属制品有限公司

Calcination-free board prepared from diatomite and preparation method of calcination-free board

The invention relates to the technical field of building boards, and discloses a calcination-free board prepared from diatomite. The calcination-free board is prepared from the following raw materials in parts by weight: 40-60 parts of diatomite, 5-10 parts of silica fume, 5-15 parts of quick lime, 5-15 parts of bamboo and wood fiber, 2-6 parts of aluminum powder and 5-10 parts of water glass. The main steps comprise crushing, mixing, granulation, pressing, maintenance and polishing. The production process is compact in flow. Waste second-level and third-level diatomite is adopted as diatomite, the cost is low, waste utilization is achieved, aluminum powder serves as a foaming agent, water glass serves as an adhesive, the overall structure of the board is uniform, the second-level and third-level diatomite has many pores, the process does not have a calcination link, the pores cannot be damaged, and therefore the board body has certain adsorption capacity, the indoor humidity can be adjusted, indoor harmful gas can be removed, and the method is suitable for industrial production.
Owner:白山和一硅藻科技股份有限公司

Water spraying filler system for waste gas treatment

PendingCN114405232AGuarantee partial pressure unchangedPrevent release into air problemsGas treatmentTreatment using aerobic processesWater storageControl cell
The invention discloses a water spray packing system for waste gas treatment, which comprises a spray packing tower, a water storage unit, a first-stage spray packing unit, a second-stage spray packing unit and a tower body opening and closing control unit, an absorption cavity is arranged in the spray packing tower, the first-stage spray packing unit and the second-stage spray packing unit are both arranged in the absorption cavity, and the tower body opening and closing control unit is arranged in the absorption cavity. The bottom of the absorption cavity is communicated with the water storage unit; and the tower body opening and closing control unit is used for controlling the spraying packed tower to be opened when the VOC organic waste gas is introduced and controlling the spraying packed tower to be closed when the VOC organic waste gas is stopped being introduced. When introduction of VOC organic waste gas is stopped, the spray packed tower is controlled to be closed through the tower body opening and closing control unit, the interior of the tower is in a sealed state at the moment, it is guaranteed that the partial pressure of the VOC organic waste gas in the tower is not changed, the VOC organic waste gas in water does not volatilize, pollution to the external environment is prevented, and the treatment efficiency of the VOC organic waste gas is effectively improved.
Owner:深圳市国寰环保科技发展有限公司

Concrete ecological earthen bowl, production and application method

The invention belongs to the ecological environment engineering technical field. When the ecology of a lakeshore belt is restored, a concrete ecological bowl is utilized to provide a platform and substrate for planting aquatic plants. The ecological bowl is made of reinforced concrete, three types of materials are laminated and filled in the bowl, and the material layers in the bowl are a gravel layer, a crushed stone layer and a dirt layer from bottom to top respectively; the dirt layer is used as the substrate of the growth of plants, gravels and crushed stones can increase the weight of the bowl, descend the center of gravity of the bowl, improve the lodging resistance of the bowl and simultaneously have the purification effect; the middle upper part of the wall of the bowl is providedwith swinging rings, which are convenient for construction. According to the local flora, different wind wave resistant plants are planted in the bowl in order to increase the biological diversity ofthe local lakeshore belt and restore vegetation. In order to adapt to different land forms and land features, total three types of concrete ecological bowls of A concrete ecological bowl, B concrete ecological bowl and C concrete ecological bowl are designed, and a plurality of bowls with the same type can be combined to form a specific shape for use, which is convenient for construction and has better esthetic effect.
Owner:NANJING UNIV

Insulin mesoporous carbon particles and its preparation method, oral preparation and application

The invention discloses insulin mesoporous carbon particles comprising mesoporous carbon and insulin; insulin is embedded into mesoporous carbon; and the amount ratio of insulin to mesoporous carbon is 3-6:10-15. The invention also discloses a preparation method of the insulin mesoporous carbon particles, an oral preparation prepared from the insulin mesoporous carbon particles, and applications of the insulin mesoporous carbon particles in treatment of diabetes. The preparation method is simple; biocompatibility is high; toxic reaction of cells or internal organs is not caused; in vivo metabolism is relatively rapid. The oral preparation is capable of solving problems that insulin is not stable at alimentary canal environment and liver first pass effect is caused; oral administration is realized; and high efficiency treatment effect of polypeptide oral administration is ensured.
Owner:GUANGDONG PHARMA UNIV

Sorting device for shielding part testing

The invention discloses a sorting device for shielding part testing, and relates to the technical field of workpiece machining. Comprising a packing machine and a U-shaped frame fixed to the packing machine, a belt device is arranged on the inner side of the U-shaped frame, a fan device is arranged at the top of the U-shaped frame, the U-shaped frame is fixed to a collecting barrel, an adsorption assembly is arranged in the U-shaped frame, a striking assembly is arranged on an output shaft of the fan device, and the adsorption assembly comprises a driven rod. Through the arranged adsorption assembly, when a packaging bag with a shielding piece falls on the belt device, the packaging bag abuts against a driven rod, so that the driven rod rotates around the position where the driven rod is hinged to a U-shaped frame, an induction copper sheet is connected with a power source, an electromagnet is powered on to have adsorption force, and the packaging bag with the shielding piece is adsorbed to the belt device; and the phenomenon that the produced stainless steel shielding piece is too small, so that a packaging bag filled with the shielding piece is also blown away by the fan device is avoided.
Owner:深圳市铭恒达精密技术有限公司

A self-growing aqueous phase phosphate adsorption material and its preparation method and application

The invention discloses a structure self-growing aqueous phase phosphate radical adsorbing material and a preparation method and application thereof. The preparation method comprises the following steps: adding clay to pre-sintered egg shell powder, ball-milling and mixing, pelleting, staling, molding, sintering, cooking and drying to obtain the structure self-growing aqueous phase phosphate radical adsorbing material. The problem that the conventional adsorbent cannot avoid adsorption saturation is solved from mechanism, the new breakthrough of the adsorption mechanism is realized, waste resources such as diatomite, silica powder produced by an iron alloy smelting plant and oyster in the farm produce fair are used as raw material to develop the structure self-growing aqueous phase phosphate radical adsorbing material, the phosphate radical ions in the sewage are effectively adsorbed, the problem of egg shell powder pollution is solved while solving the problem of phosphorous-enriched water pollution; the preparation method of the material is simple and effective, low in cost, easy to popularize, and has good economic benefit and environment benefit; and the material can be well put into scale production to promote the sustainable development of the social economy and environment.
Owner:FUZHOU UNIV

Method for preparing polyphenylene-sulfide-based strongly acidic ion exchange fiber

InactiveCN102277730BReduce manufacturing costAvoiding Irradiation Grafting TechniquesOther chemical processesFibre typesFiberOrganosolv
The invention discloses a method for preparing a polyphenylene-sulfide-based strongly acidic ion exchange fiber. The method comprises the following steps of: fully swelling a polyphenylene sulfide fiber serving as a raw material in an organic solvent; adding a coupling agent and a catalyst into the polyphenylene sulfide fiber after the polyphenylene sulfide fiber is swelled; under the action of no stirring, raising the temperature of a reaction solution of the polyphenylene sulfide fiber for coupling reaction; after the reaction is finished, washing an obtained product, and performing acid boiling, extraction and drying treatment sequentially so as to obtain a coupled polyphenylene sulfide fiber; fully swelling the obtained coupled polyphenylene sulfide fiber in the organic solvent, adding a sulphonated reagent after the coupled polyphenylene sulfide fiber is swelled; under the action of no stirring, raising the temperature of the reaction solution for sulphonation reaction; after thereaction is finished, washing an obtained product and performing extraction and drying treatment sequentially, and treating to obtain the polyphenylene-sulfide-based strongly acidic ion exchange fiber. The polyphenylene sulfide fiber serving as the raw material has low cost and is readily available; compared with the prior art, the method has the advantage of obviously reducing the production cost; furthermore, in the preparation method, a radiation grafting technology is avoided totally, and the process is simple and easy to operate.
Owner:ZHENGZHOU UNIV +1

Paper tray processing technology

The invention discloses a paper tray processing technology. The technology comprises the following steps of: S1, mixing raw starch, water and stone powder or talcum powder or calcium carbonate put in at the same time, and stirring well to obtain a mixed solution; S2, uniformly spraying or applying the mixed solution to the surface of a paper tray to form a coating; S3, putting the sprayed or coated paper tray into a steam box, and steaming for 30-90 seconds by water vapor until the raw starch in the coating becomes half-cooked or full-cooked starch; and S4, putting and drying the steamed paper tray in an oven, and after drying is completed, taking the paper tray out. The coating is arranged on the surface of the paper tray, so that soft flocks, fading, impurities, wrinkles and cracks do not exist on the surface of the paper tray, a very high-grade visual effect, a soft touch effect and color diversity can be formed on the surface of the paper tray, and some problems existing in the paper tray made of conventional materials do not need to be considered.
Owner:刘永胜
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