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 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 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 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.