32results about How to "Reduce adsorption cost" patented technology

The invention discloses a SiO2@MgSi0.84O2.68 core-shell structure adsorbent, as well as a preparation method and application thereof. The preparation method comprises the following steps: uniformly mixing a silica solution and activated magnesium oxide according to the mass ratio that SiO2:MgO is 5:1; adding in water, and stirring into a paste; adding in spherical SiO2 and water, and stirring again; then stirring for 20 min at the rotating speed of 1800 rmp in a rotary stirring machine; drying at a temperature of 120 DEG C; calcining the dried powders for 3 hours at a temperature of 500-600 DEG C in a muffle furnace to obtain the novel core-shell structure adsorbent. The core-shell structure adsorbent is large in specific surface area, high in adsorption capacity, low in adsorption cost, easy for regeneration and good in recycling effect, so that the core-shell structure adsorbent can effectively solve the problem of dye wastewater treatment, and has the potential application in the industries of food, medicine, petroleum, cosmetics and the like.

The invention discloses an efficient and energy-saving device for treating sewage with charcoal. The device mainly comprises a first sedimentation tower, a second sedimentation, a sterilization tank and a backwash tank, wherein the first sedimentation tower comprises a mud scraping mechanism, a filtering screen and an impurity cleaning mechanism; the second sedimentation comprises an adsorption tube, a second rotating rod for stirring and pushing wastes, and a waste tank mounted at the bottom of the second sedimentation tower; a plurality of progressive fan blades are mounted on the second rotating rod; the second sedimentation tower communicates with the waste tank through a baffle plate which is arranged at the bottom of the second sedimentation tower; the adsorption tube is an arch-shaped pipeline which is composed of a plurality rows of U-shaped tubes in a communication manner; the sterilization tank comprises a plurality of sterilization rods which are arranged at the top and thebottom of the sterilization tank in a staggered manner and a water outlet tube which is arranged on a side surface of the sterilization tank; and the backwash tank comprises a water pump and an air pump. The device is high in sewage treatment efficiency, low in cost and applicable to wide popularization.

Production of flax lignose is carried out by taking flax cake as raw material, leaching by alcohol containing alkali, neutralizing, concentrating to obtain non-alcohol leaching liquor, extracting with ethyl acetate as solvent, adsorbing by porous resin chromatograph column and drying. It's cheap and convenient and better quality.

The invention provides a high-efficiency high-temperature activated carbon adsorbent. Raw materials of the adsorbent comprise activated carbon and lipase liquid, wherein the mass ratio of the activated carbon to the lipase liquid is 1:(10-20); and the lipase liquid is lipase liquid secreted during mixed fermentation culture of pseudomonas putida, pseudomonas fluorescens and denitrifying bacteria.According to the adsorbent disclosed by the invention, the adopted lipase liquid is the lipase liquid secreted by mixed fermentation of the pseudomonas putida, pseudomonas fluorescens and denitrifyingbacteria on a culture medium added with industrial wastewater. The lipase liquid can adapt to an environment of the industrial wastewater in the culture medium, is applicable to high-temperature conditions, can still maintain extremely high activity under the high-temperature conditions, and has stability. The lipase liquid has excellent adsorption effects on heavy metal ions and organic matters.The activated carbon adsorbent prepared by performing synergistic matching on the lipase liquid with the characteristics and the activated carbon has excellent high temperature resistance.

The invention relates to the technical field of composite materials, in particular to a heteroatom-rich functionalized graphene oxide composite material and a preparation method and application thereof. The composite material is effectively covalently coupled by the organic molecule 2-amino-1,3,4-thiadiazole rich in sulfur / nitrogen and graphene oxide, and the obtained composite material has a stable structure and good selectivity. The heteroatom functionalized graphene composite material has introduced heteroatom functional groups, has abundant adsorption active sites, can coordinate and chelate with heavy metal ions, realize the adsorption of heavy metals, and has good reusability.

The invention discloses a preparation method of a nonionic surfactant adsorption material. The method comprises the steps of: (1) by weight, stirring 100 parts of dichloroethane and 10-20 parts of a styrene macroporous adsorbent at 25DEG C for 2-6 h, and filtering out dichloroethane; (2) adding 50-100 parts of deionized water, 0.5-5 parts of sodium tungstate and adding 20-40 parts of hydrogen peroxide with a mass percentage concentration of 30% into the material with dichloroethane filtered out in step (1), carrying out reaction at 50-70DEG C for 2-6 h, conducting filtering at the end of reaction, and performing drying to obtain a product. According to the invention, the product has the advantages of good absorption effect, strong adsorption capacity, high adsorption efficiency and low adsorption cost.

The invention provides a method for recycling carbon-based microporous materials to treat nitrogen oxide waste gas, which belongs to the field of nitrogen oxide waste gas treatment and can efficiently and repeatedly utilize carbon-based microporous materials to absorb nitrogen oxide waste gas at normal temperature. The method for recycling carbon-based microporous materials to treat nitrogen oxide waste gas comprises the following steps: (1) stacking carbon-based microporous materials in an adsorption column, and feeding nitrogen oxide waste gas at normal temperature for adsorption; (2) completing the adsorption Finally, take out the carbon-based microporous material that absorbs nitrogen oxide waste gas, place it in a reactor, add a reducing agent, mix, and heat the reactor after sealing; (3) After heating, cool down, open the reactor, and then heat and dry. Take out the dried carbon-based microporous material, cool it to room temperature, stack it in the adsorption column, and repeat the operation of steps (1)-(2).

The invention provides a multi-core multi-variable metal organic framework material and its synthesis and application. The metal organic framework material, its molecular formula is {(NH 2 (CH 3 ) 2 )[W 9 (μ 3 -OH) 2 (μ 4 -OH)(X) 2 (Y) 8 (Z)]} n ; Among them, W is Co 2+ or Ni 2+ ; X is 4,4',4"'-(pyridine-2,4,6-triyl)tribenzoic acid, phenyl-1,3,5-tribenzoic acid, 4,4',4"-all Triazine‑2,4,6‑triylbenzoic acid; Y is isonicotinic acid, trifluoroisonicotinic acid, trimethylisonicotinic acid; Z is terephthalic acid, naphthalene dicarboxylic acid, thiophenedicarboxylic acid, Dibromobenzoic acid; n is the number of repeating units. The metal organic framework material can selectively adsorb acetylene in carbon dioxide. And it can be used repeatedly, the adsorption cost is low, and it has a great application prospect in the industrial purification of acetylene and the recovery of acetylene.

The invention discloses a semiconductor single crystal silicon growth device, which belongs to the field of semiconductor manufacturing. A semiconductor single crystal silicon growth device includes a single crystal silicon furnace body, and a graphite heater and a silicon melting furnace are fixedly installed in the single crystal silicon furnace body. The direction-adjusting adsorption cylinder between the crucibles can be used for isolation by adjusting the direction of the adsorption cylinder, so that SiO gas cannot be close to the graphite heater, thereby reducing the generation of carbon monoxide, and through X-type zeolite molecular sieves, microporous one-way adsorption plates and reflux With the cooperation of the air pump group, the mixed airflow inside the monocrystalline silicon furnace body can be adsorbed and circulated. While effectively removing carbon monoxide, the airflow around the crystalline silicon can be increased to form convection with the incoming argon gas, and the generated Carbon monoxide is dispersed and isolated to reduce carbon generation, reduce carbon pollution to crystalline silicon, improve the preparation quality of single crystal silicon rods, and then improve its electrical conductivity, reduce rework rates, and improve the economic benefits of its manufacturing.

The invention discloses a preparation method of an adsorbing material for extracting perfluorooctanoic acid. The preparation method of the adsorbing material for extracting the perfluorooctanoic acid comprises the following steps of (1): preparing a water phase; (2), preparing an oil phase; (3), carrying out a suspension polymerization reaction; (4), carrying out a chloromethylation reaction; (5), carrying out an amination reaction. The preparation method of the adsorbing material for extracting the perfluorooctanoic acid has the advantages that a product is high in adsorptive capacity and long in service life.