9results about How to "Efficient manufacturing method" patented technology

The invention relates to a preparation method of a three-dimensional ferrocobalt metal oxide oxygen evolution catalyst. According to the method, foamed nickel is selected as a carrier, the foamed nickel is pretreated, a metal ion and ethanol mixed solution is evenly adsorbed to the surface of the foamed nickel, then open fire ignition is carried out, and a second-level self-limiting combustion process is carried out, so that metal ions form a ferrocobalt metal oxide material with a three-dimensional network structure in situ on the surface of the foamed nickel. The method is simple and easy to implement, a target product can be generated within second-level time, and the area of a foamed nickel matrix is adjusted according to needs, so that the three-dimensional ferrocobalt metal oxide catalyst is prepared on a large scale. The material obtained by the invention is used as an oxygen evolution anode catalyst, and the three-dimensional network-shaped ferrocobalt metal oxide oxygen evolution catalyst shows excellent electrochemical performance.

The invention belongs to the field of organic synthesis, and particularly relates to preparation of 2-fluoro-3-aminobenzoic acid and ester compounds thereof. The reaction formula is shown in the specification, and specifically, a compound II is obtained by carrying out nitration reaction on a compound I serving as a raw material; carrying out halogenation reaction on the obtained compound II to obtain a compound III; fluorinating the compound III under proper reaction conditions to obtain a compound IV; preparing a compound V from the obtained compound IV in a hydrolysis or alcoholysis manner; performing catalytic hydrogenation dehalogenation on the compound V to obtain 2-fluoro-3-aminobenzoic acid and ester compounds shown as a compound X; the starting materials of the process route are cheap and easily available, the process flow is common unit operation in fine chemical engineering, the operation is convenient, the reaction conversion rate is high, and the selectivity is good. The completion of the invention provides an effective preparation method for industrial development of the compounds. # imgabs0 #

The invention discloses a preparation method of a spirulina biopesticide, which comprises the following steps: preparing water, spirulina mud, a carbon source and zymophyte, and sequentially putting into a sealed barrel; opening the sealing barrel, uniformly stirring once every day, continuously stirring for 7-10 days, and adding the waste flue-cured tobacco when the mixed liquid is odorless and has acid fragrance; then uniformly stirring once every 7-10 days, and stirring for 3-4 times; finally, uniformly stirring once every 15 days, and sealing for 2-3 months after stirring twice, so as to obtain fermentation liquor; adding a veratrum nigrum extract and a fructus cnidii extract into the fermentation liquid, uniformly mixing, standing and filtering to obtain the spirulina biopesticide. The pesticide has the effect of killing pests, especially aphids, the waste flue-cured tobaccos and the spirulina are fermented by adopting zymophyte mainly comprising candida alcoholism, then the veratrum nigrum extract and the fructus cnidii extract are compounded, the preparation method is simple and effective, the aphids can be killed at low concentration, the use amount of the pesticide is reduced, the pest control cost is reduced, resource reutilization is realized, and the pesticide has a good application prospect. And no chemical agent is used, and low toxicity and environmental protection are realized.

The present invention provides a multilayer container, a method for producing the same, and a method for producing recycled polyester comprising a step of recovering polyester from the multilayer container. The multilayer container comprises a polyester layer comprising a polyester resin (X), and a polyamide layer comprising a polyamide resin (Y) and a yellowing inhibitor (A), wherein the content of the polyamide resin (Y) is 0.05 to 7.0% by mass relative to the total amount of all the polyamide layers and all the polyester layers, and the content of the yellowing inhibitor (A) is 1 to 30 ppm relative to the total amount of all the polyamide layers and all the polyester layers.

The invention belongs to the field of organic synthesis, and particularly relates to a synthesis method of 2-fluoro-3-aminobenzoic acid and ester compounds thereof. The reaction formula is as follows: nitrating a compound I serving as a raw material under reaction conditions to obtain a compound II, and halogenating the obtained compound II under proper reaction conditions to obtain a compound III; fluorinating the obtained compound III under proper reaction conditions to obtain a compound IV; the obtained compound IV is subjected to catalytic hydrodehalogenation under proper reaction conditions to obtain 2-fluoro-3-aminobenzoic acid shown as a compound V and ester compounds thereof; the starting materials of the process route are cheap and easily available, the process flow is common unit operation in fine chemical engineering, the operation is convenient, the reaction conversion rate is high, and the selectivity is good. The completion of the invention provides an effective preparation method for industrial development of the compounds. # imgabs0 #

The present invention belongs to the technical field of electroplating nickel-tungsten alloy, and in particular, relates to a forward and reverse pulse electrolytic nickel-tungsten alloy solution, a preparation method, an electroplating method and a nickel-tungsten alloy coating. The nickel-tungsten alloy solution comprises: 20-150 g / L of nickel salt, 30-300 g / L of tungstate, 5-500 g / L of organic acid salt, 3-300 g / L of organic acid and 0.02-15 g / L of nitrogen-containing heterocyclic compound. The nickel-tungsten alloy coating electrolytically precipitated by the present invention is uniform and smooth, presents a submicron structure amorphous alloy surface morphology, has very high purity and excellent compactness, can provide a nickel-tungsten alloy electroplating product with uniform coating distribution, saves the amount of nickel-tungsten alloy used in plated parts, greatly reduces production costs, improves product quality, and can meet the development trend of the demand for high-end nickel-tungsten amorphous alloy materials in the field of high-tech electronic products and high-quality and high-precision mold products.

The invention relates to the technical field of organic synthesis, and particularly discloses a preparation method of bisphenol-type phthalimide, which comprises the following steps: adding a solvent E into a reaction flask under the protection of inert gas, then adding a raw material bisphenol compound A, a raw material halogenated or nitro substitute B, an alkali compound C and a catalyst D, and reacting for 2-4 hours; and finally, adding the solvent E again to adjust the solid content of the reaction system to be 5-40%, heating to 25-180 DEG C, reacting for 8-72 hours, and after the reaction is finished, sequentially filtering, concentrating under reduced pressure, purifying, performing rotary evaporation and drying to obtain the bisphenol phthalimide. The bisphenol-substituted phthalimide is prepared from the bisphenol monomer and the halogenated or nitro-substituted phthalimide through a one-step oxidative coupling method under the action of the catalyst, and the preparation method is simple in process operation, mild in reaction condition, mature and stable in process route and beneficial to industrial stable production.

This invention relates to the technical field of hoses, and more particularly to a reinforcing material, its preparation method, and its application. The material composition includes at least one thermoplastic polyolefin, 80-120 parts by weight of the thermoplastic polyolefin, 15-20 parts by weight of fiber, and grafted material. The screw compression section and mixing section of the mixture are equipped with pins, and the screw as a whole is provided with helical grooves. This invention first discovered the relationship between the fiber content in the reinforcing material composition with a fiber-reinforced phase and the bending radius and strength of the hose product. Furthermore, by appropriately increasing the fiber content and optimizing the preparation method, the hose product with the reinforced structure achieves higher strength, while simultaneously maintaining its bending radius near the minimum level, providing an effective material formulation and preparation method for reinforced hose products.

The invention belongs to the field of organic synthesis, and particularly relates to a method for preparing 2-fluoro-3-aminobenzoic acid and ester compounds thereof. The reaction formula is as follows, substituent groups in the formula are shown in the specification, and specifically, a compound I is nitrified under proper reaction conditions to obtain a compound II, the compound II is halogenated under proper reaction conditions to obtain a compound III, the compound III is fluorinated under proper reaction conditions to obtain a compound IV, and the compound IV is hydrolyzed or alcoholyzed under proper reaction conditions to prepare a compound V. And performing catalytic hydrogenation dehalogenation on the compound V under proper reaction conditions to obtain 2-fluoro-3-aminobenzoic acid and ester compounds thereof, namely a compound X. The starting materials of the process route are cheap and easily available, the process flow is common unit operation in fine chemical engineering, the operation is convenient, the reaction conversion rate is high, and the selectivity is good. The completion of the invention provides an effective preparation method for industrial development of the compounds. # imgabs0 #