74 results about "Magnetic ionic liquid" patented technology

The invention relates to magnetic ion liquid, and particularly relates to the magnetic ion liquid, a preparation method of the magnetic ion liquid and application in reducing sulfur content in fuel oil in a catalytic oxidation mode of the magnetic ion liquid. The magnetic ion liquid is not only used as a catalyst but also used as an extraction agent in the reaction process. The magnetic ion liquid and oil products are immiscible in the reaction process, and the magnetic iron liquid has high catalytic activity, is capable of activating oxygen and separating ionic liquid and the oil products through an applied magnetic field after the reaction finishes, and facilitates recovery of the magnetic ion liquid and recycling of the magnetic ion liquid.

The invention belongs to the field of enzyme immobilizing, and specifically relates to a method for immobilizing enzymes by using a magnetic ionic liquid composite material. According to the invention, the method comprises the steps that: (1) magnetic nano-particles are prepared; (2) ionic liquid is loaded in the magnetic nano-particles, such that the magnetic ionic liquid composite material is obtained; (3) enzymes are immobilized by using the magnetic ionic liquid composite material. According to the invention, the ionic liquid is loaded in the magnetic nano-carriers, such that a magnetic ionic liquid composite material enzyme immobilizing system is formed. With the method, an ionic liquid microenvironment is introduced, and the ionic liquid has almost no vapor pressure, such that the method has environmental protecting characteristic and designability. With the method, enzyme activity and stability can be improved. According to the invention, a nano-material is used as a carrier in enzyme immobilizing, such that the dispersibility of a catalyst can be improved.

The invention relates to a method for preparing fibrillar meshwork structure conducting polypyrrole film by interfacial polymerization, which comprises the following steps: dissolving ionic liquid in deionized water, and dissolving pyrrole monomer in a hydrophobic solvent, wherein the magnetic ionic liquid acts as an initiator and a soft template, and a conducting polypyrrole film is formed on the interface of water and the hydrophobic solvent. A conducting polypyrrole film with a fibrillar meshwork structure can be obtained by controlling the reaction conditions. According to the invention, the equipment is simple, the operation is easy, and low toxic (non-toxic) n-hexane (ionic liquid) is used as a solvent, resulting in environmental friendliness. The prepared polypyrrole film is used as supercapacitor electrode material and has high specific capacity and multiplying factor.

The invention provides a method for degrading polyethylene glycol terephthalate (PET). The method comprises the steps of preparing HAP-gamma-Fe2O3, preparing a 1-methyl-3-(3-propyltriethoxysilane) imidazole chloride, preparing a magnetic ion liquid, pretreating a raw material, carrying out catalytic reaction by adopting the catalyst and purifying the product, wherein in the step of carrying out catalytic reaction, PET, the magnetic ion liquid and water are put into a reaction kettle, the mass ratio of PET to the magnetic ion liquid is 1:(0.05-0.15), and the temperature is set to be 200-320 DEG C and the time is set to be 15-30 hours; and after the reaction kettle is cooled to the room temperature after reaction is completed, stirring, standing and layering are carried out, suction filtration is carried out, NaOH is added to the filtrate, suction filtration is carried out again, HCl is added and suction filtration is carried out, thus obtaining a product terephthalic acid. By degrading PET by adopting the method provided by the invention, the degradation rate can be more than 90%.

The invention relates to bivalent cation magnetic ionic liquids and a preparation method thereof, and belongs to the technical fields of novel chemical materials and preparation. N-alkyl imidazole, 1,m-dibromoalkane, 1,m-dicholoroalkane, ferric trichloride, lanthanide metal oxide, potassium rhodanide and aqueous solution of perchloric acid are taken as raw materials to be prepared into the bivalent cation magnetic ionic liquids with different anion structures; and compared with the conventional magnetic ionic liquid, the magnetic ionic liquids have high magnetism, magnetic controllability and higher thermal stability. The invention realizes magnetic designability of the magnetic ionic liquids for the first time, and promotes the application of the magnetic ionic liquids in the fields such as aviation, medicines, biology and the like.

The invention discloses an alkylimidazole ethylenediaminetetraacetic acid iron (III) water-soluble ionic liquid and a synthetic method thereof. The technical scheme is characterized in that: an alkylimidazole chlorine salt or bromine salt, KOH, ferric chloride hexahydrate and ethylenediaminetetraacetic acid are taken as raw materials for synthesis of alkylimidazole ethylenediaminetetraacetic acid iron (III). Compared with conventional halogen-containing iron-based magnetic ionic liquid, alkylimidazole ethylenediaminetetraacetic acid iron (III) has the characteristics of adjustable acid-base property, high water solubility and the like. The water solution of alkylimidazole ethylenediaminetetraacetic acid iron (III) not only has relatively high oxidation-reduction reversibility, but also has lower surface tension and higher iron (III) concentration compared with a water solution of Fe-EDTA.

The invention relates to the field of structural functional materials and preparation technology thereof, and specifically relates to vinyl alkyl imidazole tetrathiocyanate cobalt (II) magnetic ionic liquids and synthetic methods thereof. The technical characteristics lie in that the vinyl alkyl imidazole tetrathiocyanate cobalt (II) magnetic ionic liquids with different cation structures are synthesized by employing 1-vinyl imidazole, a alkyl bromide, cobalt chloride hexahydrate and potassium thiocyanate as raw materials and adopting two methods. Compared with a general magnetic ionic liquid, the vinyl alkyl imidazole tetrathiocyanate cobalt (II) magnetic ionic liquids have the characteristics of controllable magnetism, high heat stability and the like. Designability of the magnetism of the magnetic ionic liquids is realized. Regulation performance of the magnetism of the magnetic ionic liquids is realized by changing the length of the alkyl chain on the vinyl imidazole cation. Also, the synthetic methods of the vinyl alkyl imidazole tetrathiocyanate cobalt (II) magnetic ionic liquids are provided.

The invention discloses a magnetic ionic liquid separation and concentration method. The method comprises that the magnetic ionic liquid is introduced into a filler pipe with magnetic medium filler and a strong magnetic field is applied to the exterior of the pipe, so that separation and concentration of the magnetic ionic liquid is realized under the action of the formed high-gradient strong magnetic field; and the method can be used for collection of a magnetic ionic liquid product or reclamation of a magnetic ionic liquid catalyst. The method is simple in process and high in treatment capacity, and saves energy consumption; and the concentration of the magnetic ionic liquid can reach over 90 weight percent.

The invention provides a functional magnetic ionic liquid graphene adsorbent and a preparation method and application thereof. The preparation method includes the steps of S1, mixing water-soluble trivalent ferric salt with ionic liquid proportionally to obtain brown-yellow magnetic ionic liquid after full reaction, separating the obtained magnetic ionic liquid by water extraction to remove unreacted objects and then performing vacuum drying to obtain pure-magnetic ionic liquid; S2, dissolving graphene in a water-soluble ionic liquid solution, adding the pure-magnetic ionic liquid and bivalentferric salt obtained in the step S1, adding ammonia water by dropping to obtain precipitate by anaerobic ultrasonic reaction at room temperature and pressure, and finally performing separation, purification, washing and drying to obtain functional magnetic graphene. The functional magnetic grapheen can enrich trace biotoxins, pesticides, veterinary drugs and ultraviolet adsorbents in complex matrix samples, early-state purification of the matrix samples is not needed before enrichment, and the process is simple, rapid and efficient.

The invention relates to a magnetic ion liquid-filled micro-structure optical fiber magnetic field sensor. The working principle of the sensor includes that a fiber core mode and an ion liquid columnmode are coupled by the aid of a refractive index matching and coupling principle, the transmission light attenuation coefficient of ion liquid is changed along with increase of the strength of an external magnetic field when the transmission direction of transmission light is perpendicular to the direction of the magnetic field, the attenuation coefficient of the magnetic ion liquid is changed under different magnetic field strengths, spectrum harmonic peak strength is obviously changed, and the strength change of the external magnetic field can be accurately measured. The sensor can be usedfor implementation of novel optical fiber magnetic field sensor research work. Compared with a past reported optical fiber magnetic field sensor, the sensor has the advantages that the property of themagnetic ion liquid is more stable than that of magnetic fluids, measuring results cannot be affected by base fluid property fluctuation, and the sensor has higher accuracy.

The invention discloses a synthesis method of guanidine organic magnetic ionic liquid, in particular guanidyl cation-based organic magnetic ionic liquid. The synthesis method is technically characterized in that chloroalkane or bromoalkane, 1,1,3,3-tetramethyl guanidine, sodium hydroxide or potassium hydroxide, a 4-hydroxy-2,2,6,6-tetramethyl piperidine oxide and chlorosulfonic acid are used as raw materials to synthesize a series of paramagnetic organic magnetic ionic liquid, and the structural formula is as shown in formula (I) shown in the description. The compound is novel in structure and can form aqueous two phase with inorganic salt (potassium phosphate, dipotassium phosphate, potassium carbonate, sodium carbonate, ammonium bisulfate, sodium sulfate and the like); an aqueous two phase system of the magnetic ionic liquid is internationally developed for the first time. Compared with the traditional aqueous two phase system, the aqueous two phase system of the magnetic ionic liquid is capable of accelerating the separation of two phases through an applied magnetic field assisted manner, so as to improve the phase separation efficiency. The system has wide potential purposes, and has unique advantage in the fields of extraction, micro-extraction, separation and analysis.

The invention discloses a method for catalytically preparing 2,6-dimethylnaphthalene through using magnetic ionic liquid. The method comprises the following steps of adding a mixed solution of methylnaphthalene and mesitylene in an ultrasonic reaction kettle provided with a stirrer, stirring to react for 35-45min in inert atmosphere, then adding a magnetic ionic liquid catalyst, reacting for 15-80min under the condition that temperature is 25-40 DEG C, the inert atmosphere exists, the stirring speed is 400-600r / min and the power of ultrasonic wave is 150-300W, and standing for 30min after completing reaction; a lower-layer catalyst can be directly recycled after subjected to magnetic filed separation; the mixed solution with an upper layer containing the 2,6-dimethylnaphthalene is furtherseparated and purified to obtain a 2,6-dimethylnaphthalene product and incompletely reacted raw materials. The method has the advantages of high catalytic activity, precise process, high reaction transformation rate, high 2,6-dimethylnaphthalene yield and the like.

In this disclosure, transition and rare earth metal-based magnetic ionic liquids (MILs) are successfully prepared in a two-step synthesis and used to extract viable bacteria from a liquid sample. The disclosed MILs are extremely hydrophobic MILs and were insoluble in aqueous solution at 0.01% (v / v). Furthermore, these MILs were miscible in a variety of polar and non-polar organic solvents. Moreover, these MILs possess low viscosity and increased magnetic susceptibility. These MILs possess unique characteristics that can have great potential uses in various chemical applications such as extraction solvents in LLE, liquid electrochromic materials (Co-based MILs), and novel reaction media for organic synthesis.

The invention discloses a two-dimensional nitrogen-doped magnetic ionic liquid zeolite imidazate nano material and a preparation method and application thereof. The preparation method comprises the following steps: weighing ZIF-8, placing ZIF-8 in ultrapure water, carrying out ultrasonic dispersion uniformly, adding bromo-1-hexyl-3methylimidazole and 1-hexyl-3methylimidazole ferric chloride, keeping ultrasonic homogenization, adding FeSO4-7H2O into the mixed solution under the protection of N2 and high-speed stirring, simultaneously adding ammonia water and stirring, collecting black magneticmicrospheres by using a magnet, washing, carrying out vacuum drying, and grinding to obtain MILZIF. The synthetic method of the porous magnetic core-shell structure material synthesized by the invention is rapid by one step, and a traditional method of constructing a magnetic core at first and then constructing nano material particles on the surface is not required. A bisimidazole group is constructed through combination of ZIF-8 and IL, so that the functional groups of the material are abundant and diversified. The prepared material has magnetism and larger specific surface area, and meanwhile, is convenient to separate and recycle.

This invention relates to a method of using acidic, magnetic and hydrophobic ion liquid to extract penicillin, and reactor of magnetism whiping disperse system. Massfraction of penicillin in the mixture is 0.5 to 8%. The magnetic and hydrophobic ion liquid submit acidity, and massfraction of the ion liquid is 20 to 60%. The invention adopts [bmim] FeCl4 to extract penicillin, can reach 75% upwards extraction rate without acidification. The invention adopts reactor with gyrating, fluctuating magnetic stirring isolation pot, through outfield strengthening effect to realize intensive mixing and sharp separation of magnetic ion liquid and penicillin water solution; the magnetism of ion liquid realize low shearing whipping, and prevent emulsification in extraction process; the invention has no centrifugalization system after whipping, avoid biphase entrainment of traditional method; the power of this reactor is greatly less than conventional dasher, depress energy expenditure in extraction process.

The invention belongs to the technical field of liquid phase oxidation, and discloses an iron-based catalyst for synthesizing a compound with a quinazolinone structure, and a preparation method and application of the iron-based catalyst. The iron-based catalyst mainly consists of carbon and nitrogen elements, wherein the weight ratio of various elements is as follows: 5-10 wt% of iron, 55-70 wt% of carbon and 1-20 wt% of nitrogen, and the particle size of the iron nano particles of the iron-based catalyst is 5-20 nm. The iron-based catalyst is prepared by taking a magnetic ion liquid as a precursor and sucrose as a carbon source, and carrying out pyrolysis in an inert atmosphere. In the presence of the iron-based catalyst in a very low usage amount, peroxide used as an oxidant and no otheradditives, the quinazolinone compound is synthesized by taking anthranilamide compounds and primary alcohols as raw materials. The iron-based catalyst provided by the invention is easy to synthesizemassively, has magnetism, can be recycled, and has the advantages of mild reaction condition, greenness, environmental protectiveness, easy separation of products, high selectivity and yield of products, and a good application prospect.

The invention discloses a 1-butyl-3-methylimidazole-tri(hexafluoroacetylacetone) cobalt (II) complex magnetic ionic liquid as well as a preparation method and application thereof. According to the method, 1-butyl-3-methylimidazole bromide and tri(hexafluoroacetylacetone) amine cobaltate complex are employed as monomers, and the 1-butyl-3-methylimidazole-tri(hexafluoroacetylacetone) cobalt (II) complex magnetic ionic liquid is prepared by using an ion exchange. The 1-butyl-3-methylimidazole-tri(hexafluoroacetylacetone) cobalt (II) magnetic ionic liquid is in a solid state at normal temperature, can be dissolved in methanol and acetonitrile, can keep a certain viscosity, and is insoluble in water. By using dispersion liquid-liquid micro-extraction technology, the liquid can directly enter a liquid chromatograph and can be simply and conveniently used for analysis and testing. Compared with common magnetic ionic liquid, the process for preparing the magnetic ionic liquid has the advantages of being simple in synthesis step, low in viscosity, obvious in color, high in thermal stability, safe, stable, good in machinability and the like. Besides, the prepared magnetic ionic liquid is easy to process, has paramagnetism, and is matched with a liquid chromatogram mobile phase, so that the application range of the magnetic ionic liquid can be expanded.

The invention provides a permanent magnet rotating and stirring device, which comprises a hermetic container (4) that contains magnetic ion liquid (10), a first permanent magnet (5) and a rotating motor (6); the container (4) is provided with an inwards-protuberant central magnet groove (19) at the center of the bottom; the first permanent magnet is positioned in the inwards-protuberant central magnet groove (19); the rotating motor (6) drives the first permanent magnet to rotate in the inwards-protuberant central magnet groove (19). The device is characterized in that the container (4) is also provided with at least one ring-shaped magnet groove and at least one second permanent magnet (22) that is positioned in the ring-shaped magnet groove and can rotate along the ring-shaped magnet when driven by the rotating motor (6); and direction of magnetic pole of the second permanent magnet (22) is the same with direction of magnetic pole of the first permanent magnet (5). The invention overcomes the defect of the existing permanent magnet rotating and stirring devices that as distance from the magnetic ion liquid to the permanent magnet is increased, magnetic force is reduced, which weakens rotating drive.

In this disclosure, a method or kit for using the method of extracting, concentrating, and detecting microbes from a sample is disclosed. The method disclosed herein use transition or rare earth metal-based magnetic ionic liquids (MILs) to extract viable microbes from a sample and to detect them via an amplification-based method and / or a non-amplification-based methods. The method and kit can be used in-field and on-site for detection of viable microbes in a sample within about an hour, without using any powered heat source or powered tool.

The invention belongs to the technical field of Turnbull's blue synthesis and nano-materials and relates to a magnetic nano-Turnbull's blue and its preparation method and use. The preparation method of the magnetic nano-Turnbull's blue comprises that an iron imidazole magnetic ion-containing liquid and a potassium ferricyanide aqueous solution undergo a reaction in a solvent with magnetic stirring; and reaction products are separated and purified so that the magnetic nano-Turnbull's blue is obtained. The preparation method has simple processes and strong controllability, is suitable for large-scale production and has good application prospects.

The invention relates to a novel application of a magnetic ionic liquid as a high-temperature magnetic seal lubricating material. The magnetic ionic liquid has low (no) vapor pressure, good heat stability and magnetic controllability. Through application of a controllable external magnetic field, the lubricating surface can be accurately filled with the magnetic ionic liquid, continuous lubrication is realized, and leakage and outside pollution can be prevented in the lubrication process. Compared with conventional magnetic lubricating materials, the magnetic ionic liquid can effectively solvethe problems of magnetic particle aggregation, sedimentation and the like as a pure substance, has the advantages of high stability, no vapor pressure and the like under the condition of high temperature and is a novel, efficient, stable, safe and environment-friendly magnetic seal lubricating material.

The invention discloses a preparing method of an imidazolyl ionic liquid which comprises synthesizing a magnetic ionic liquid positive ion, synthesizing a magnetic ionic liquid negative ion, preparing a magnetic ionic liquid negative ion solution, concentrating and magnetic adjusting, etc. Compared with the prior art, the imidazolyl Ionic liquids preparing method is simple. On the one hand, the water solubility of the magnetic ionic liquid is effectively improved and the surface tension is reduced. On the other hand, the oxidation-reduction quality, stability of magnets and magnetic regulating ability of the magnetic ionic liquid are improved. In addition, the varieties of magnetic particles in magnetic ion liquid are effectively expanded, thereby, the usability of magnetic ionic liquid and scope of application are effectively improved and enhanced, together with the reduction of production cost.

The invention relates to magnetic ionic liquid and particularly relates to a preparation method of the ionic liquid based on guanidine functional groups and an application of the ionic liquid in the removal of sulfur-containing organic matters in a nonpolar solution by extraction. The ionic liquid has a structure represented by a general formula (I) as shown in the specification, is typical room-temperature ionic liquid, has the advantages of very low melting point and high boiling point, low vapor pressure, good stability, very high desulfurization efficiency and high selectivity and is liquid at room temperature, the intersolubility of the ionic liquid and a non-polar solvent is very low, the desulfurization extraction equilibrium can be achieved in 3-6 minutes; and the pollution and coloring to the original non-polar solvent cannot be caused. According to the magnetic ionic liquid disclosed by the invention, when n is equal to 1.5-2, the magnetic ionic liquid has very high paramagnetism and specific magnetic susceptibility greater than 59.1*10<-6>emu / g, which is superior to the reported magnetic susceptibility. Therefore, after the extraction desulfurization is completed, the separation of the ionic liquid from the non-polar solvent can be conveniently achieved by externally applying a magnetic field. The properties of the magnetic ionic liquid can be restored by diluting with water and a carbon tetrachloride reextraction method, the magnetic ionic liquid can be repeatedly used for many times and the desulfurization efficiency cannot be significantly reduced. The recycling of the removed sulfur-containing aromatic compounds can also be achieved by virtue of vacuum distillation and enrichment.

The invention discloses a method for manufacturing a cathode of a display panel, the display panel and a display device to solve the technical problem that a light-emitting layer is damaged when a transparent cathode is formed by a sputtering process in the prior art. The method comprises a step of forming a magnetic ionic liquid layer on the surface of a substrate on which an organic functional layer is formed, and a step of forming a transparent metal oxide electrode on the surface of the substrate on which the organic functional layer is formed by using magnetically controlled sputtering with the magnetic ionic liquid layer as a buffer layer for sputtering ions.

The invention discloses a magnetic ion liquid micro-emulsion extraction agent for treating printing and dyeing wastewater. The extraction agent takes a magnetic ion liquid as a polar phase and a dyeing aqueous solution as a nonpolar phase; a micro-emulsion technique is adopted for preparing the magnetic ion liquid micro-emulsion; the defects of easiness in agglomeration and high ionic liquid viscosity of the magnetic material in a process of treating printing and dyeing wastewater can be effectively overcome; the preparation method is simple; the operation is convenient; the control is easy; the production cost is low. The magnetic ion liquid micro-emulsion extraction agent prepared according to the invention can be used for quickly and efficiently treating the dyes in the printing and dyeing wastewater and obviously increasing the extraction efficiency and reuse efficiency of the extraction agent; the magnetism of the extraction agent is utilized and a magnet is adopted for quickly separating the ion liquid from the dyes after the completion of the extraction, the recycle of the ion liquid and the enriching recycle of the dye molecules are realized and the application prospect is wide.

The invention provides a magnetic ionic liquid nano composite adsorption material for CO2 capture. According to the invention, the amino-containing ionic liquid is loaded on the surface of the nano magnetic material carrier to form the composite material for capturing CO2, the amino ionic liquid can adsorb CO2 with high capacity and little loss, and the nano material can significantly improve the specific surface area and dispersity so as to improve the adsorption capacity; and the magnetic material can utilize a magnetic field to realize rapid and efficient recovery of an adsorbent. The method has the advantages of high adsorption capacity, strong stability, no ionic liquid loss, large CO2 capacity at a high temperature, rapid and efficient recovery of the adsorbent and the like, so the material has a good prospect in the field of carbon dioxide capture.

The invention discloses a magnetic ionic liquid thruster. The magnetic ionic liquid thruster comprises a storage unit, a magnetic induction unit, a power supply unit and an emission unit, wherein theemission unit comprises a plurality of emitter bases, extraction electrodes and accumulation electrodes, and magnetic sprayers positioned at the outer side of the thruster; the plurality of emitter bases, extraction electrodes and accumulation electrodes have the same quantities; the storage unit is used for storing magnetic ionic liquid; the magnetic induction unit generates magnetic induction force, so that a peak is formed on the surface of the magnetic ionic liquid entering the emitter bases from the storage unit; the power supply unit is used for providing electric pulses for the emitterbases, the extraction electrodes and the acceleration electrodes; the extraction electrodes enable the peak formed on the surface of the magnetic ionic liquid to spray ions and charged liquid drops ina direction towards the acceleration electrodes under the effect of electric pulses; the acceleration electrodes are used for accelerating the movement of the ions and the charged liquid drops in a direction towards the magnetic sprayers under the effects of the electric pulses; and the magnetic sprayers are used for spraying the ions and the charged liquid drops out of the thruster to generate thrust.