44 results about "Imidazole acetate" patented technology

The invention provides a supported ionic liquid catalyst for preparing vinyl acetate in an acetylene method, the catalyst adopts mesoporous molecular sieve as a carrier and adopts zinc acetate as an active component, and the carrier and the active component are connected by imidazole acetate ionic liquid. The invention further provides a preparation method of the catalyst and an application in preparing the vinyl acetate in the acetylene method. The active component of the zinc acetate of the supported ionic liquid catalyst is bond-coupled on the surface of the carrier in a chemical method and is not easy to be lost in the reaction process; the carrier of the mesoporous molecular sieve provides suitable reaction space for catalytic reaction, and carbon deposition is not easy to be generated; the ionic liquid forms a pseudophase liquid microenvironment on the surface of the catalyst, thus improving the mass transfer and heat transfer in the reaction process; and the catalyst has good stability, long service life, high activity and good selectivity.

The invention relates to a skin-relieving vegetable fiber fabric and a preparation method thereof. The skin-relieving vegetable fiber fabric is prepared from the following raw materials by weight: 100-120 parts of 1-ethyl-3-methyl imidazole acetate, 4-5 parts of nanometer chitin, 1-2 parts of jojoba oil, 8-10 parts of water, 7-10 parts of plastic starch, 2-4 parts of polycaprolactone, 1-2 parts of whiting oil, 1-2 parts of vitamin E, 3-4 parts of lavender, 4-6 parts of rosemary, 10-14 parts of natural silk fiber, 54-58 parts of ramie, 25-27 parts of banana fiber, and 0.4-0.8 part of spinning auxiliaries. The skin-relieving vegetable fiber fabric adopts ramie as a raw material, so that the fabric has the performances of bacteriostasis, ventilation, cool, corrosion protection, mould prevention and sweat absorption; through the adoption of banana fiber and natural silk fiber, the gloss and softness of the fiber fabric are enhanced; through the adoption of vitamin, lavender and rosemary, the fiber fabric can be skin-relieving, the secretion of grease can be balanced, acne can be controlled, and inflammation can be eliminated; moreover, through the adoption of the spinning auxiliaries, spinning melt can be favorable in spinning property, the fiber fabric is fuzziness-free, is dyed uniformly, is excellent in the color and luster, and touches soft.

The invention discloses a phosphorus-free corrosion and scale inhibitor and a preparation method thereof, and belongs to the technical field of water treatment. The phosphorus-free corrosion and scaleinhibitor is prepared by mixing and complexing the components in parts by weight: 10-30 parts of a polyepoxysuccinic acid aqueous solution, 4-8 parts of citric acid and / or a citrate, 1-3 parts of 1H-benzotriazole, 5-15 parts of a zinc salt, 3-6 parts of imidazolinamide acetate, 5-10 parts of a maleic acid-acrylic acid-styrene sulfonic acid terpolymer and the balance deionized water. The phosphorus-free corrosion and scale inhibitor can be applied to water bodies with lower hardness, and the effect of corrosion and scale inhibition in water with water hardness as low as 150 mg / L (calculated based on calcium carbonate) is good.

The invention relates to the field of food packaging, in particular to a preparation method and product of a chitosan antibacterial film. The preparation method of the chitosan antibacterial film, provided by the invention, comprises the following steps: dipping the chitosan with tartaric acid and then washing with absolute ethyl alcohol; mixing the tartaric acid with 1-ethyl-3methyl imidazole acetate series and adding the washed chitosan; then adding chitinase and cooling the temperature until coating liquid is obtained; performing strickling on the obtained coating liquid and putting into asolvent for carrying out phase transfer to obtain a film and drying to obtain the chitosan antibacterial film. The obtained chitosan antibacterial film disclosed by the invention has good antibacterial effects and high film strength.

The invention discloses waterproof breathable down feather composite fiber which is characterized by comprising the following raw materials by weight: 12-16 parts of duck down, 13-15 parts of rex rabbit hair, 20-25 parts of chicken feather, 8-10 parts of nylon fiber, 6-9 parts of polyaniline conductive polyester fiber, 10-13 parts of rabbit hair keratin powder, 8-11 parts of transgenic cotton fiber, 7-10 parts of china-hemp fiber, 1-2 parts of silicon carbide powder, 0.3-0.6 part of sodium laureth sulfate, 2-5 parts of coconut shell activated carbon powder, 1.1-2.4 parts of belvedere fruit, 1.3-2.5 parts of selfheal, 2.1-3.1 parts of semen boitae, 4-7 parts of rhizoma phragmitis, 2-3 parts of tremolite powder, 100-110 parts of 1 - butyl-3-methyl imidazole dimethyl phosphate, 115-120 parts of 1-butyl 3-methyl imidazole acetate, 2-4 parts of an additive and moderate amount of water; the waterproof breathable down feather composite fiber is added with the rex rabbit hair, chicken feather and nylon fiber, has good heat preservation and air permeability good waterproof effect, and is also added with some Chinese herbal medicines, and the prepared waterproof breathable down feather composite fiber is antibacterial and mouldproof.

The invention discloses a method for preparing imidazole acetate ionic liquid, which comprises the following steps of: mixing organic alcoholic solution of imidazole halid salt and organic alcoholic solution of acetate, and reacting at preset temperature; evaporating to remove partial organic alcohol in a reaction system in the reaction process; and filtering reaction mixed liquor and removing organic alcohol from filtrate to obtain the imidazole acetate ionic liquid. In the method for preparing the imidazole acetate ionic liquid, the partial organic alcohol is evaporated and removed in the reaction process, so distillation can be performed by means of reaction temperature, the load of evaporating and removing a solvent after filtration is reduced, the cost is reduced, the solvent amount in the filtrate is small, and the inorganic salt amount remained in the solvent is small; therefore, the purity of the imidazole acetate ionic liquid subjected to solvent evaporation and removal is improved.

The invention relates to a novel method of chemically depolymerizing waste compact disks to generate bisphenol A and carbonic acid dialkyl ester to realize chemical recycling of the waste compact disks. The method is characterized in that 1-R-3-methyl imidazole acetate ionic liquid (the R can be ethyl, propyl or butyl) which is easy in recycling is used as a reaction medium and catalyst for hydrolysis or alcoholysis reaction at 90-140 DEG C, and a bisphenol A product (as for the alcoholysis reaction, carbonic acid dialkyl ester is further obtained) is obtained through operations of filtering, extracting, distilling and the like after the reaction is completed. The yield of each of the bisphenol A and the carbonic acid dialkyl ester is higher than 90%. Compared with the prior art, the novel method has the advantages that firstly, high-concentration organic strong acid or strong base in the background art is not needed, so that the problems of equipment corrosion and environment pollution are evidently improved; and secondly, the ionic liquid having a certain dissolubility to the waste compact disks is used as the reaction medium and catalyst, on one hand, reaction conditions are mild, and on the other hand, the problem that the catalyst in the background art cannot be recycled is solved as the ionic liquid is reusable.