40results about How to "Wide range of adsorption" patented technology

The invention discloses a heavy metal adsorbent and a preparation method and application thereof. The heavy metal adsorbent is prepared by modifying raw materials including attapulgite clay and microcrystalline cellulose, wherein the mass ratio of attapulgite clay to microcrystalline cellulose is (1-4) : 1, and attapulgite refers to aqueous magnesium-rich aluminosilicate mineral having the laminated chain structure. The heavy metal adsorbent is applied to preparation of adsorbent products for overcoming heavy metal pollution. Since attapulgite and microcrystalline cellulose are taken as the raw materials, cellulose is dissolved by an alkali/urea system, and attapulgite and calcium carbonate are added to prepare a porous attapulgite and cellulose composite adsorbent; the the modifying process needs mild condition without pollution, is easy to control and has high yield. Besides, the attapulgite and cellulose composite adsorbent is low in cost, environmental friendly, high in adsorptioncapacity, wide in service condition, and can be applied industrialized production.

The invention discloses a preparation method and application of a polyvinylamine functional magnetic carbon-based nano adsorbing agent. The preparation method is specifically characterized in that a chemical coprecipitation method is used to deposit magnetic particles to the surface of graphene oxide-carbon nanotubes, and amidation is used to modify high-cation polyvinylamine (PVAm) to the magnetic (graphene oxide-carbon nanotubes) hybrid body. The prepared adsorbing agent has the advantages that the adsorbing agent has large specific surface area and rich adsorption sites, has a large numberof amino functional groups and can effectively combine with phenol through a hydrophobic effect, pi-pi keys, electrostatic attraction and hydrogen bonding so as to effectively remove phenol in wastewater, and the maximum phenol adsorption quantity, calculated through a Langmuir model, of the adsorbing agent is 224.21mg/g; the adsorbing agent can be reused through simple enrichment desorption, andindustrial wastewater treatment cost is lowered.

The invention discloses a preparation method of a jasmine flower essential oil crystal. The preparation method comprises the following steps: (1) pretreatment: treating fresh picked jasmine flowers by using a bioenzyme solution; (2) adsorption treatment: adsorbing the pretreated jasmine flowers by using resin at normal temperature; (3) elution treatment: eluting with an eluent after resin adsorption saturation, drying, removing water and performing reduced-pressure distillation to obtain jasmine flower essential oil, wherein the eluent is at least one of petroleum ether, normal hexane, ethanol and ethyl acetate; and (4) crystallization treatment: adding an organic solvent into the jasmine flower essential oil, standing and crystallizing at 3 to 5 DEG C and filtering to obtain the jasmine flower essential oil crystal, wherein the organic solvent is at least one of petroleum ether, normal hexane, ethyl acetate and ethanol. The essential oil crystal provided by the crystallization method is pure in color and convenient to transfer and transport; and recrystallization is conducted at low temperature, so that the yield is increased, impurities are reduced, the effectively components of the essential oil are improved, the quality is high, and the essential oil is not liable to deterioration.

The invention discloses a method for analyzing an electronic cigarette tar component through combination of dynamic pin capture and gas chromatography and mass spectrometry. The method comprises inserting a dynamic capture pin connected with a circular purging apparatus into a head-space bottle, starting the circular purging apparatus, performing heating at 50 DEG C for 30 min, inserting the dynamic capture pin into a GC-MS injection port to perform desorption, and then performing GC-MS qualitative analysis. According to the method, a non-equilibrium continuous adsorption process is adopted, the sample enrichment efficiency can be greatly improved, and volatile components in a sample are extracted from the sample. The dynamic capture pin is used for capture, adsorption and sampling, and after desorption, the sample enters a detector for analysis. The method is suitable for sampling and analyzing a trace amount of an organic target component. The method allows the trace-amount componentto be enriched, and is high in sensitivity, wide in adsorption range, good in reproducibility and easy to operate. After adsorption, the trace-amount component can be sealed and stored. A by-productproduced in an adsorption process is less. The method is accurate in qualitative and quantitative analysis, simple to operate, and relatively long in life.

The invention discloses an oil making method, edible oil and application thereof and belongs to the technical field of food processing. The oil making method comprises the following steps: soaking anoil squeezing raw material with water for 1-2 hours, and frying for 80-100 minutes at 140-170 DEG C; grinding the fried oil squeezing raw material, steaming, caking, and squeezing so as to obtain crude oil; settling the crude oil so as to obtain an oil liquid; adsorbing the oil liquid with an adsorbent at 30-50 DEG C while the liquor ratio is (0.5-1):50, wherein the adsorbent comprises silica gel,sodium calcium based montmorillonite and alkali microcrystalline cellulose in a mass ratio of 1:(1-2):(1-2). By adopting the oil making method, excessive components in oil can be effectively removed,the refining loss can be reduced, nutrient components and good flavor of the oil can be maintained, the oil making method is applicable to popularization, and industrialization can be achieved. The edible oil made by using the oil making method is high in security, complete in nutrient component and good in flavor. The edible oil is applied to food processing, and foods made with the edible oil are high in security and good in flavor.

The invention relates to an intelligent FPC board adsorbing and releasing device comprising a material storage mechanism, a receiving mechanism and a moving mechanism moving a FPC board to the receiving mechanism from the material storage mechanism. A mechanical arm comprises a fixed shell and a moving column. The moving column is movably arranged on the fixed shell. A fixed plate is fixed to thefixed shell. A holding plate is fixed to one end of the moving column. The holding plate is provided with buffering columns. An adsorption plate and a release plate are fixed to the lower ends of thebuffering columns. Multiple limiting mechanisms are located at the two ends of the adsorption plate. The lower surface of the adsorption plate is provided with adsorption pieces which are adhesive materials. The intelligent FPC board adsorbing and releasing device is simple in structure, harmonious in overall operation action, small in power, convenient to assemble and maintain, free of noise andcapable of conveying FPC boards of different sizes.

The invention discloses a micropore large-surface material used for adsorbing volatile organic pollutants. The micropore large-surface material is prepared from the following raw materials in a formula: 15 to 30 parts of polyhydroxyl polyurethane, 20 to 35 parts of polyacrylamide, 1 to 3 parts of a catalyst, 3 to 7 parts of an initiator, 15 to 30 parts of a foaming agent, 1 to 3 parts of a curing agent, 2 to 4 parts of a preservative, 3 to 5 parts of a penetrating agent, 20 to 30 parts of a solvent and 11 to 15 parts of nano active carbon; selection and preparation methods of the material are provided according to the formula. The method is simple and convenient, technological conditions are moderate, and the production cost is low; the structure of the material is stable and is not damaged by high temperature; the micropore large-surface material has good temperature resisting performance and good corrosion resistance; the adsorption property of resin and active carbon is sufficiently utilized, so that the adsorption effect is greatly improved and the adsorption range is wide.

The present invention relates to the preparation of adsorbent, and is especially porous chitosan-amino acid copolymer ball as the macromolecular chromoprotein adsorbing medium. The present invention has the advantages including opening one way of introducing ¿CCOOH into chitosan microballoon, and synthesizing one kind of porous copolymer ball with high adsorption capacity on macromolecular chromoprotein.

The utility model discloses an adjustable dustproof and moistureproof industrial Ethernet switch, and belongs to the technical field of communication equipment industrial switches. A counterweight base is arranged below the switch shell, a rotating motor is fixedly arranged in an open slot of the counterweight base, and the rotating motor is in upward output connection with a rotating shaft rod, penetrates through the switch shell, extends into the switch shell, is detachably connected with a blast adsorption assembly and can control the blast adsorption assembly to rotate in a linkage manner; hydraulic power cylinder bodies are arranged on the left and right sides of the counterweight base, and the upper part of an output hydraulic telescopic rod is fixedly connected with a switch shell, so that the switch shell can be controlled to lift up and down in a linkage manner; the blast adsorption assembly comprises a blast electric fan and a hollow pipe body; the top wall surface and/or the side wall surface of the switch shell are/is connected with a silica gel water absorption assembly in a sealed and embedded manner; the left and right ends of the switch housing are hermetically provided with cooling heat absorption assemblies penetrating the upper and lower wall surfaces. Dehumidification, dust removal, heat absorption and heat dissipation can be comprehensively and efficiently carried out in the switch shell, and the application effect is good.

The invention discloses a platinum-absorbing modified carbon fiber containing an organic chelating group and a preparation method and application of the platinum-absorbing modified carbon fiber, the platinum-absorbing modified carbon fiber comprises a carbon fiber and the organic chelating group bonded to the carbon fiber, and the organic chelating group is a platinum-absorbing organic chelating group. The platinum-absorbing organic chelating group is mainly obtained by condensation reaction of an active group and an amino-containing organic matter, and the active group at least comprises carboxyl. The preparation method comprises the following steps: carrying out oxidation reaction on the carbon fiber and hydrogen peroxide, and carrying out organic condensation reaction on the oxidized carbon fiber and an amino-containing organic matter in an organic solvent. The platinum adsorption modified carbon fiber can be used for adsorbing platinum ions in an acidic aqueous solution containing platinum ions, can efficiently adsorb platinum ions with high, medium and low concentrations in a complex acidic environment, and is high in adsorption selectivity, high in saturation adsorption capacity and wide in pH application range.

The invention relates to an anti-poison mask with a metal organic framework adsorption material. The anti-poison mask with the metal organic framework adsorption material mainly solves the problems that in the prior art, the adsorption capacity is poor, and the adsorption range is narrow. By the adoption of the anti-poison mask with the metal organic framework adsorption material, a filtering material of the anti-poison mask comprises non-woven fabric and metal organic framework material layers, and the metal organic framework material layers are arranged between the two layers of non-woven fabric. The metal organic framework material layers are one or more non-woven fabric layers with a certain metal organic framework material loading capacity. The metal organic framework material is a three-dimensional framework crystal material which is formed by self-assembly of metal ions and organic ligands containing oxygen and nitrogen. By means of the technical scheme characterized in that -NH2 and -OH functional groups are added to an organic ligand framework to form the MOFs preferential adsorption material in a composite mode, the problems are preferably solved, and the anti-poison maskcan be used in anti-poison tools.

The invention discloses a method for analyzing aroma components of roses using needle capture-gas chromatography-mass spectrometry. Needle trapping is an advanced solvent-free sample pretreatment technology. After placing fresh hot field roses in a headspace bottle, turn on the heating device for heating, insert the capture needle into the headspace bottle for adsorption, and then Pull out the trapping needle from the headspace bottle, and then insert it into the gas chromatography-mass spectrometry inlet for desorption, and perform qualitative analysis by gas chromatography-mass spectrometry after desorption. The invention adopts a continuous adsorption process, which can greatly improve the enrichment efficiency of the sample, overflow the volatile components in the sample from the sample, use the capture needle to capture the adsorption sample, and enter the detector for analysis after desorption, which is suitable for trace organic targets Component sampling analysis. It can enrich trace components, with high sensitivity, wide adsorption range, good reproducibility and easy operation. It can be sealed and stored after adsorption, with few by-products in the adsorption process, accurate qualitative and quantitative results, simple operation and long service life.

The invention discloses a preparation method of an activated carbon fiber compounded molecular sieve adsorption concentration runner. The method comprises the following steps: A, performing surface treatment on activated carbon fibers; b, carrying out pre-doping treatment on the treated activated carbon fiber and the treated fiber matrix, and carrying out corrugated forming; c, the corrugated composite paper and the flat fiber paper are subjected to stacking or winding forming through an adhesive, the stacking or winding mode is that one layer of composite paper and one layer of flat paper are stacked, and a honeycomb body module is obtained in the step; d, preparing an activated carbon fiber/molecular sieve composite adsorption material by a sol-gel method; and E, preparing to obtain the activated carbon fiber/molecular sieve composite adsorption concentration runner module. The activated carbon fiber/molecular sieve composite adsorption concentration rotating wheel module has the advantages of large adsorption capacity and strong adsorption capacity, in addition, the adsorption adaptability is wide, the adsorption capacity is large, the adsorption range is wide, and the problem that the adsorption concentration rotating wheel is poor in treatment effect on some waste gas components is solved.

A waste gas purification adsorbing agent comprises, by weight, 20-30 parts of activated carbon fibers, 8-10 parts of diatom ooze, 6-12 parts of metal oxide, 3-5 parts of silicon sol and 8-10 parts ofcalcium carbonate granules. The waste gas purification adsorbing agent has the advantages that the adsorbing agent can simultaneously adsorb sulfur dioxide, nitride and organic gas in waste gas and wide in adsorption range and more convenient to use, separate treatment of different components in the waste gas is avoided, the treatment efficiency of the waste gas is improved, and the treatment costof the waste gas is reduced.

The invention relates to an air freshener and a preparation method thereof. The air freshener is prepared by the following steps: mixing earthworm cast with water, wherein earthworm cast is Daping No.2 earthworm cast containing earthworm eggs; sieving the earthworm cast; processing the earthworm cast by virtue of a convection oven; and roasting the earthworm cast at constant temperature in a timed mode. The air freshener disclosed by the invention can overcome the shortcomings of a single purification mode, high using cost, risk of secondary pollution and the like in the past. The air freshener disclosed by the invention is simple in program, high in adsorption efficiency, convenient to use and low in preparation cost, and the freshener, which can serve as organic fertilizer after being used, is capable of avoiding the risk of secondary pollution, strong in adsorption capacity, broad in adsorption scope, high in air purification speed and efficient; with the application of the air freshener disclosed by the invention, current air purification cost can be reduced by 60% and purification efficacy can be improved by 40%; and the air freshener is suitable for air purification in various occasions.

The invention discloses a preparation method of a natural high-purity cape jasmine flower essential oil crystal. The preparation method comprises the following steps: firstly, spraying water on fresh picked cape jasmine flowers and then putting into a fresh flower container for later use; secondly, adsorbing volatile components in the fresh cape jasmine flowers by adopting resin at room temperature; thirdly, putting resin adsorbed with cape jasmine flower head volatile in the first step into extraction equipment, and carrying out CO2 supercritical extraction to obtain an oily cape jasmine flower head volatile coarse component; fourthly, dissolving the oily cape jasmine flower head volatile coarse component by adopting the organic solvent, allowing standing still and crystallizing at low temperature, and filtering to obtain the cape jasmine flower essential oil crystal. The essential oil crystal provided by the invention is good in color and is convenient for taking out and transporting; the natural high-purity cape jasmine flower essential oil crystal is recrystallized under the low-temperature condition, so that the yield is increased, and impurities are reduced.

The invention discloses a novel composite sludge activated carbon adsorbent which is characterized by being prepared from the following raw materials, by weight, 100-150 parts of sludge, 13-17 parts of corn straw, 15-24 parts of peanut shell, 10-15 parts of manganese ore powder, 30-50 parts of zinc chloride, 13-16 parts of magnesium silicate, 5-8 parts of silicon dioxide, 3-5 parts of polyvinyl alcohol, 3-5 parts of polyacrylamide, 6-9 parts of teflon powder, 5-7 parts of attapulgite powder, 7-9 parts of calcium sulphide and a proper amount of distilled water. with addition of the teflon powder, attapulgite powder and calcium sulphide, acidic and alkali resistance, bactericidal activity and adsorption capacity of the sludge activated carbon are greatly enhanced, and wear rate during the preparation process is reduced. The source of materials is wide, and cost is low. The preparation process is simple; production efficiency is high; and no secondary pollution is caused. The adsorbent is environmentally friendly, has a wide range of adsorption and is worthy of popularization.