61 results about "Imidazolium chloride" patented technology

Imidazolium salts are the immediate precursors to N-heterocyclic carbenes (NHC) yet a simple, general synthetic route to a wide variety of imidazolium salts is not yet available. Such a straightforward route is described for two specific members of this family of ligand precursor: 1,3-Bis(2,4,6-trimethylphenyl)imidazolium chloride (IMes.HCl) and 1,3-Bis(2,6-diispropylphenyl)imidazolium chloride (IPr.HCl). The procedure appears general and similar protocols can be used to isolate various imidazolium salts.

The invention relates to a method for conducting wool textile anti-felting treatment through a two-bath process by using imidazolium chloride ionic liquid/protease, belonging to the application field of wool fabric dyeing and finishing in the wool textile industry. The method is characterized in that chloroform/methanol is used to extract impurities on the surface of the fabric first, then the strong dissolving/swelling capacity of the imidazolium chloride ionic liquid is used to modify the surface layer of wool yarn scales and finally protease is used to trim the fabric to obtain the goal of improving the anti-felting effect of the wool fabric treated by using protease. Moreover, the ionic liquid used for pretreatment can be repetitively utilized after the ionic liquid is distilled under reduced pressure, so the environmental pollution is reduced. The invention solves the problems that the anti-felting effect of the wool fabric treated by using the existing single protease is bad and serious pollution is caused by the DCCA/protease anti-felting technology.

The invention discloses a method for electrodepositing an Al protective plated layer on the surface of an NdFeB magnet by using ionic liquid. According to the method, disubstituted imidazolium chloride-aluminium chloride type ionic liquid is used as a plating solution, and a certain quantity of aromatic organic additive is added into the plating solution. By using the method, a silvery white bright and compact aluminum plated layer can be obtained on an NdFeB matrix, and an electromechanical experiment and a salt mist test show that the Al protective plated layer obviously improves the corrosion resistance of the NdFeB matrix. Moreover, the ionic liquid is incombustible and unvaporized, so that the ionic liquid can be repeatedly used, cannot generate electroplating wastewater, and is environment-friendly.

The invention discloses mould-proof anti-bacterial multi-fiber blended woven fabric. The mould-proof anti-bacterial multi-fiber blended woven fabric is formed by weaving warp yarns and weft yarns through an air jet loom and is characterized in that the warp yarns and the weft yarns comprise, by weight, 30-36 parts of isotatic polypropylene, 3-5 parts of cinnamyl aldehyde, 1-2 parts of thiocarbamide, 0.4-0.8 part of stannous mono-sulphate, 3-6 parts of kaolin, 25-34 parts of modal fibers, 20-25 parts of milk grass fibers, 19-26 parts of elastic cotton fibers, 23-28 parts of coconut carbon fibers, 7-9 parts of fluoro-siloxane resin, 8-12 parts of toluene diisocynate, 10-14 parts of butyl alcohol, 2-4 parts of root bark of white mulberry, 3-4 parts of skullcap, 80-90 parts of 1-butyi-3-methylimidazole acetate, 100-110 parts of 1-alyl-3-imidazolium chloride, 4-7 parts of assistant, and a proper amount of water. According to the manufacturing method of the mould-proof anti-bacterial multi-fiber blended woven fabric, the processes are simple, the method is easy to implement, and the functions of the manufactured woven fabric are comprehensive through reasonable selection of raw materials and scientific proportion design. According to the mould-proof anti-bacterial multi-fiber blended woven fabric, various plant fibers are added and are soaked through Chinese herbal medicine, in this way, the spinnability of plant fibers and the spinning quality are improved, all technical indexes of the woven fabric are increased, and the mould-proof anti-bacterial multi-fiber blended woven fabric has the excellent advantage of being resistant to mould and bacteria, soft in handfeeling, hygroscopic, breathable, capable of lowering noise, removing dust and insulating heat and the like.

The invention relates a chemical extraction method of agricultural waste, particularly a method for recycling lignin and cellulose in tobacco waste, comprising the following steps: crushing the tobacco waste, adding 10-30 times volume of water, regulating the pH value to 11-13, processing for no less than 1 min under microwave at 100 W to obtain a pretreatment material; filtering the pretreatment material, regulating the pH value of the filter residues to 4.0-5.0, reacting for no less than 40 min, and using an ionic liquid of 1-butyl-3-methyl imidazolium chloride to fully dissolve, carrying out solid-liquid separation to obtain the solid and liquid, wherein the solid is lignin, and the liquid contains cellulose. The method provides a continuous extraction process of nicotine, hemicellulose and cellulose. After nicotine products are obtained with high yield, the residues are used for extracting hemicellulose and cellulose, wherein cellulose has good sensory property and can be used as a high end material. The whole method is green, and the production cost is low.

The invention relates to a bis-nitrogen heterocyclic carbene bis-palladium complex and a preparation method thereof, which belong to the bis-palladium complex and a preparation method thereof. The preparation method is as follows: according to the molar ratio of 1:2.05:20, bis-imidazolium chloride salt, palladium chloride, and potassium carbonate are added into a round-bottomed flask, a condenser is added to the mouth of the flask, and an inversion plug is added to the condenser. Connect it to a double-row tube vacuum line connected with argon; react at 85°C for 18h; Wash the diatomaceous earth until no yellow liquid flows down, and collect the filtrate; use a rotary evaporator to remove dichloromethane in the collected filtrate, and remove pyridine in the collected filtrate to obtain a yellow crude product; recrystallize with dichloromethane/ether to obtain a light yellow solid , that is, the bis-palladium complex of the diazoheterocyclic carbene is obtained. The synthesis step of the invention is simple, the yield is high, and it is convenient to realize industrialization.

The invention relates to a fabricating method for fabricating superfine fiber by flash vaporization, of which the process is: polymers and ionic liquid are put into an autoclave according to a proportion of 10g of polymer to 5-20ml of ionic liquid and then is evenly stirred; then the standing pretreatment lasts for 0.5-3 hours under normal temperature so as to swell the polymer to be viscous liquid; polymer is added into the solvent in a ratio of 10g/50-200ml and is stirred for 20-30min at the temperature of 150-350 DEG C and the pressure of 5-25MPa; after fully dissolving, a feeding control valve of the autoclave is opened so as to lead the filature to eject from a spinning nozzle to form the superfine fiber; devillication is automatically carried out; three-dimension network superfine fiber is formed on a receiving device by solidification; the polymer is polyolefine, polyester or polyvinylidene fluoride; the ionic liquid is 1-butyl-3-methyl-iminazole chloride or 1-allyl-3-methyll-iminazole chloride; and the solvent is 1, 2-dichloroethane, trichloromethane or cyclohexane.

The invention relates to a method for producing molded bodies from proteins by ionic liquids, in particular in 1,3-dialkyl-imidazolium-acetates or 1,3-dialkyl-imidazolium-chloride as solvents in which the protein is dissolved, the solution is formed into fibers and foils, or membranes, respectively, the protein is regenerated by precipitation in protide solutions, the solvent is separated by washing and the molded bodies are tried. Furthermore the invention relates to molded bodies produced by said method.

The invention discloses a method for highly selectively reducing an alkyne to a Z-olefin. The method comprises the steps of adding cuprous chloride, a ligand and potassium t-butoxide to a Schlenk reaction tube, conducting vacuumizing, adding an organic solvent A under protective gas conditions, and conducting uniform stirring at room temperature; and then dissolving a diphenylacetylene compound shown in a formula I and bis(pinacolato)diboron in an organic solvent B to obtain a solution, dropwise adding the solution to the reaction tube, conducting stirring for reaction at room temperature for1-12 hours, and conducting post-treatment on an obtained reaction solution to obtain a Z-olefin and derivatives thereof represented by a formula II, wherein the ligand is 1,3-bis(2,4,6-trimethylphenyl)imidazolium chloride or 1,3-bis(2,6-diisopropylphenyl)imidazolium chloride. The method takes safe cheap ethanol as a hydrogen source, is mild in reaction conditions, saves energy consumption, and inaddition, has the characteristics of high yield, high selectivity, high substrate universality and easy operation.

The invention discloses a bolt surface corrosion prevention method. The method comprises procedures as follows: a bolt is subjected to surface treatment including degreasing, deoiling and oxidation film removal with a conventional method; anode activation is performed on an ionic liquid, and the oxidation film on the surface of the bolt is completely removed; the ionic liquid is subjected to electro-deposition, an aluminum-manganese plating is formed, the bolt is subjected to constant-current electro-deposition with a barrel plating method, an aluminum-manganese alloy plating is formed, a plating solution comprises a bis-substituted imidazolium chloride-aluminum chloride type ionic liquid and manganese salt, a two-electrode system is adopted, the bolt is taken as a working electrode, a metal Al plate is taken as a counter electrode, the anodic current density is 6-20 mA/cm<2>, and the plating time is 0.5-2 h. With the adoption of the method, the bolt can have a clean surface without an oxidation layer in advance, the aluminum-manganese alloy plating is obtained through electro-deposition in a barrel plating manner, a process is simple, the operation is convenient, the energy consumption is low, no pollution is produced to the environment, platings are uniformly distributed on the part surface and well combined with the surface, higher corrosion resistance performance is achieved, batch production can be realized, and a wide application prospect is achieved.

Process for converting cellulose and hemicellulose into dimethyl furan, hydrolysing first cellulose in a mixture of N alkyl imidazolium chloride, hydrochloric acid 37% and an alcohol, to produce an acetal of glucose, making the dehydration to an acetal of hydroxymethyl furfural, extracting and making the hydrogenation of this acetal and distilling to produce dimethyl furan.

The invention discloses a method for preparing dichlorodimethylsilane by virtue of disproportionation. The method comprises the following steps: enabling aluminum trichloride, a 1-propyl-triethoxysilyl-imidazole chloride ionic liquid, fluorine intercalated hydrotalcite, aluminum trichloride and alcohol to react; obtaining a composite catalyst of fluorine intercalated hydrotalcite loaded aluminum trichloride and an ionic liquid after completing reaction; and adding methyltrichlorosilane, trimethylsilyl chloride and the composite catalyst into a high-pressure reaction kettle, and reacting to obtain dichlorodimethylsilane. The method disclosed by the invention has the advantages of good catalyst activity, cyclic utilization, small three wastes (waste gas, waste water and waste residues) and environment-friendly.

The invention discloses a bolt electroplating pretreatment method. A process comprises steps as follows: (1), electrolytic degreasing: a bolt is put in an electrolyte, and electrolytic degreasing is performed; (2), acid pickling of the bolt: oxide on the surface of a bolt base is removed through acid pickling; (3), ultrasonic cleaning: airing/drying is performed; (4), anode activation of an ionic liquid: an activation liquid is a system formed by AlCl3 and organic salt, the organic salt is bis-substituted imidazolium chloride, and the mole ratio of AlCl3 to the organic salt is (0.5-4) :1. The activation mode is implemented as follows: a bolt workpiece is taken as an anode, an Al plate is taken as a cathode, the temperature of the activation liquid is 15-80 DEG C, preferably, 20-60 DEG C, the activation current density is 2-10 mA/cm<2>, and the activation time is 2-8 min. According to the method, the process is simple, the operation is convenient, the energy consumption is low, no pollution is produced to the environment, the bolt can have a clean surface without an oxidation layer, and the electroplating binding force and the corrosion resistance are conveniently improved.

The invention discloses a method for preparation of a heterogenous catalyst SBA-PIL-Au by loading Au nanoparticles in SBA-15 mesopore channels and application of the catalyst to reaction for efficient catalysis of silane conversion to silanol. In order to enhance the action force between a substrate and nanogold particles, the invention, for the first time, proposes in-situ graft growth of an ionic liquid polymer brush: poly(1-(4-allyl phenyl)-3-methyl imidazolium chloride) to the hole walls of a mesoporous material SBA-15. SBA-PIL-AU shows a high conversion rate (greater than 98%) and high selectivity (in the product, with the ratio of silanol to silicone being greater than 99:1) on a series of various silane-to-silanol conversion reactions. The catalytic performance of the catalyst does not decline after reuse 3 times, only water is used as the solvent and oxidant in the reaction process, and no organic solvent is used, thus being green and environment-friendly.

The invention discloses preparation method and application of an ionic liquid functionalized smectite clay-SO3H-IL composite material. The preparation method comprises the following steps: 1) uniformly mixing and stirring smectite clay and deionized water to obtain a mixture 1; 2) adding a mercapto-containing preparation raw material 2 into the mixture, and performing mercapto grafting to obtain smectite clay-SH; 3) performing mercapto oxidation of the smectite clay-SH to obtain smectite clay-SO3H; 4) dispersing the smectite clay-SO3H powder in a sodium chloride solution to obtain smectite clay-SO3Na; 5) enabling the smectite clay-SO3Na to react with 1-methyl-3-(3-trimethoxysilylpropy)imidazolium chloride to obtain ionic liquid functionalized smectite clay-SO3Na-IL; 6) acidifying the ionicliquid functionalized smectite clay-SO3Na-IL to obtain the ionic liquid functionalized smectite clay-SO3H-IL composite material. The smectite clay-SO3H-IL composite material provided by the inventionis applied to the preparation of reducing sugar through biomass hydrolysis, showing good catalytic performance.

The invention relates to a preparation method of ionic conductive polyurethane, which comprises: dissolving imidazole in acetonitrile, heating to 50 DEG C, adding chloroethanol, wherein the molar ratio of the imidazole to the chloroethanol is 1: (2.1-3), heating to 80-81 DEG C, and carrying out constant-temperature backflow for 24 hours; carrying out vacuum distillation to remove the solvent acetonitrile, washing for three times with ethyl acetate, placing the mixture into a vacuum drying oven, and keeping the temperature of 80 DEG C for 5 hours to prepare 1, 3-dihydroxyethyl imidazolium chloride ionic liquid; adding N, N-dimethylformamide into another container, adding the 1, 3-dihydroxyethyl imidazolium chloride ionic liquid and toluene diisocynate, wherein the molar ratio of the toluene diisocynate to the 1, 3-dihydroxyethyl imidazolium chloride ionic liquid is 1: (1.1-1.5), heating to 90-95 DEG C, and keeping the temperature 12 hours for reaction; and pouring reaction mixture solution into acetone with the amount being twice the amount of the N, N-dimethylformamide in the previous step, keeping the mixture overnight, collecting yellow viscous substances, drying in vacuum, and thus obtaining the ionic conductive polyurethane.

The invention provides a color fixing agent for reactive dyeing and a preparation method of the color fixing agent. The preparation method includes the steps: (1) sequentially adding imidazolium chloride monomers, trifluoroethyl acrylate, dihydroxyethyldiallyl ammonium chloride, acidity regulator and deionized water into a reaction kettle equipped with a thermometer, a stirrer and a reflux condenser prior to starting reflux condensation, stirring and starting heating to increase temperature; (2) when the temperature rises to 85-100 DEG C, then dropwise adding initiator solution which is 1-10% in mass concentration and prepared with initiator and part of the deionized water, controlling the dropwise adding time between 0.5 hour and 3 hours, and controlling the temperature between 85 DEG C and 100 DEG C during dropwise adding; (3) after addition, performing thermal reaction for 1-5 hours, then adding the balance water, and discharging after stirring for 0.5 hour to obtain the color fixing agent.

Belonging to the technical field of sample pretreatment and pollutant analysis and detection, the invention discloses an aqueous phase preparation method and application of a tylosin tartrate surfacemolecularly imprinted polymer. The technical scheme includes the key points that: 2-acrylamide-2-methylpropane sulfonic acid and/or 1, 4-butanediyl-3, 3'-bis-1-vinyl imidazolium chloride can be adopted as the functional monomer, tylosin tartrate is taken as the template molecule, pure water is adopted as the preparation solvent, the crosslinking agent N, N'-methylene bisacrylamide and the initiator azobisisobutyronitrile are utilized for thermal initiation of polymerization reaction to prepare the tylosin tartrate surface molecularly imprinted polymer on a styrene-divinyl benzene granular carrier surface. The tylosin tartrate surface molecularly imprinted polymer has action sites for specific recognition of tylosin tartrate, and can be used for selective adsorption of trace tylosin tartrate in environmental samples. According to the invention, the preparation process is simple and the cost is low, and the polymer adsorbent material has uniform particle size, large adsorption capacity and high mass transfer rate.

The invention discloses a preparation method for sodium zoledronic acid, and belongs to the technical field of medicine synthesis. The technical scheme key point is that the preparation method for sodium zoledronic acid comprises the following steps: using a reaction medium as an ionic liquid, using imidazole-1-group acetic acid hydrochloride as a raw material, condensing with phosphoric acid and phosphorus trichloride, then hydrolyzing to prepare zoledronic acid monohydrate, and then carrying out reaction between zoledronic acid monohydrate and sodium hydroxide for salification so as to obtain the sodium zoledronic acid, wherein the ionic liquid is 1-n-butyl-3-methyl imidazolium tetrafluoroborate, N-ethyl pyridine tetrafluoroborate, 1-n-butyl-3-methyl imidazolium hexafluorophosphate, 1-ethoxyl-2,3-dimethyl imidazolium chloride, 1-nitrile propyl-3-methyl imidazolium chloride or 1-carboxyethyl-3-methyl imidazolium chloride. The preparation method has the advantages that the raw materials are highly available; the operation is simple and convenient; the yield and the product purity are high; the requirements of environmental protection and medicine production are met; the suitability for industrialized production is realized.

The invention discloses a method for performing electrodeposition on Al-Pt alloys in imidazole-type ionic liquid. The method comprises the following steps: 1) preparing the imidazole-type ionic liquid: mixing imidazolium chloride with anhydrous aluminium chloride under protection of inert gas or nitrogen to obtain transparent ionic liquid; adding platinum dichloride to obtain imidazole type electrolyte; 2) by adopting a three-electrode system, performing electrodeposition on the Al-Pt alloys; performing constant potential electrodeposition in the imidazole type electrolyte by using a matrix metal plate as a working electrode, an inert material as a counter-electrode and a Pt wire as a reference electrode, and preparing the Al-Pt alloys on the matrix metal plate. According to the method disclosed by the invention, the Al-Pt alloys with controlled compositions, structures and features are prepared; and moreover, the method disclosed by the invention has the advantages of short process, low cost, simpleness and convenience in operation, energy conservation and environmental protection.