34results about How to "Easy to react" patented technology

The invention discloses an accelerator for preparation of a low-carbon cementitious material from carbonized steel slag and cement and belongs to the field of energy saving and emission reduction and ecological building materials. One, two or three of a mineral accelerator fly ash, CaCO3 seed crystals, basic accelerators Mg(OH)2 and Na2CO3 and an acid accelerator C2H2O4 are added to a steel slag and cement composite cementitious material, and the accelerator has a better acceleration effect. After the accelerator is added, activity of easily carbonized components in the steel slag and cement composite cementitious material is improved, the components are subjected to a reaction more easily with H2CO3 formed by dissolving CO2 in water vapor, and stable carbonate is formed. The acceleration effect of Mg(OH)2 and C2H2O4 is better, the strength of the carbonized steel slag and cement composite cementitious material is improved greatly, CO2 is consumed to a larger degree, and the low-carbon cementitious material with good performance is prepared.

The invention discloses a self-cleaning optical resin lens and a preparation method therefor. The preparation method comprises the steps: putting nano-powder and nonionic surfactant into alkaline solution, moving a system into a polytetrafluoroethylene reaction still, and carrying out microwave hydrothermal reaction; slowly putting a resin substrate I into a nano solution, enabling the nano solution to be stationary for dipping, enabling the surface of the resin substrate I to grow a dense hydrophobic membrane, taking out the resin substrate I for drying, and obtaining a resin substrate II; carrying out the thermal curing processing of the resin substrate II, and obtaining a resin substrate III; carrying out the medium voltage radio-frequency sputtering of the resin substrate III, coating the surface of the resin substrate with an SiO2 film, and obtaining a resin substrate IV; carrying out the thermal curing processing of the resin substrate IV, and obtaining the self-cleaning optical resin lens. The self-cleaning optical resin lens is simple in technological method, is easy to operate, and can be produced in a large scale. The prepared self-cleaning optical resin lens has a super-hydrophobic surface, and achieves a good sterilizing effect.

The invention relates to a preparation method of an OLED intermediate material terphenylamine derivative. The method includes: taking compound A and 9-fluorenone or cyclohexanone as the raw materials, dissolving the raw materials in a benzene solvent, under the catalysis of p-toluenesulfonic acid, carrying out protective reaction to generate an intermediate product D or an intermediate product E; taking a compound B and the intermediate product D or intermediate product E, dissolving them in an N, N-dimethylformamide solvent, under the catalysis of a palladium catalyst, carrying out Ullmann coupling reaction to generate an intermediate product F or intermediate product G; taking the intermediate product F or intermediate product G, adding it into an acid solution, under acidic conditions, subjecting the intermediate product F or intermediate product G to deprotection reaction so as to generate a target product C. The target product C prepared by the method provided by the invention is mainly used as an OLED organic electroluminescent material intermediate. The preparation method provided by the invention is carried out under normal pressure, and has the advantages of cheap and easily available raw materials, mild reaction conditions, simple operation, high yield and high product purity, thus being suitable for industrial mass production.

The process device and process method of sulfur dioxide and hydrogen sulfide liquid phase reaction desulfurization, including reactor and separator, the reactor is followed by tail gas absorption area, liquid holding tank area and reaction area from top to bottom; liquid holding tank area includes partition, A number of lifters and downcomers are connected to the tail gas absorption area and the reaction area; at least two nozzles are arranged in the lower part of the reaction area, which are symmetrically distributed, and the nozzles are obliquely fixed on the wall of the reaction area, and the nozzles extend obliquely upward to the inside of the reaction area; The upper part of the reaction zone is provided with a liquid collection tank; the bottom of the liquid collection tank is provided with a liquid phase extraction pipe, which communicates with the liquid collection tank and the separator, and the other end of the separator is connected to the top of the tail gas absorption area. Using the process device of the present invention, the reaction gas is sprayed into the reactor through the nozzle and violently mixed with the reaction solution in the reactor, which greatly increases the dissolution rate and reaction rate of the gas in the reaction solution; the two symmetrical nozzles spray The gas reacts in the reaction solution to generate sulfur, and the gas that continues to be injected pushes the reaction solution entrained with sulfur to flow obliquely upward into the liquid collection tank. The solution in the reactor is always in a flowing state, preventing sulfur from depositing and scaling on the wall of the reactor and the bottom of the reactor, and ensuring the safe, stable and long-term operation of the device.

The invention discloses a method for improving the enzymolysis efficiency of raw starch, and belongs to the technical field of sugar preparation with starch. According to the method, high-concentration starch is used a substrate and added with raw amylase, the enzymolysis efficiency is improved by adopting a two-stage temperature control method, and the production cost of glucose or other starch sugar is finally reduced.

The invention provides a method for preparing dopamine-modified hyaluronic acid micelles, which belongs to the technical field of polymer materials and natural macromolecules. The invention introduces a dopamine unit into the main chain of the hyaluronic acid through amidation reaction, endows the hyaluronic acid with a certain amphiphilicity, and self-assembles in an aqueous solution to form micelles with particle diameters in the range of 100-700nm. This hyaluronic acid micelle has excellent biocompatibility, hydrophilicity and viscoelasticity, and can be used in the fields of biomaterials, hydrophilic colloids, etc., and the adhesion of dopamine endows it with good interfacial properties, which is used for emulsification Agents can be used in emulsion, food and cosmetics and other fields.

The invention discloses a continual manufacturing method of tetraalkoxy silicane, which comprises the following steps: blending alkaline catalyst and solvent in the autoclave with weight rate at 1:5-5:1; heating to 130-210 deg.c to activate 2-5h; adding alcohol and 20-80% silicon powder with molar rate at 3:1-1:3 under 150-220 deg.c; transmitting composition into separating tower; draining hydrogen from top of tower; separating tetraalkoxy silicane and low-boiling point component in the separating tower; returning alcohol to autoclave.

A process device and process method for reactive desulfurization of hydrogen sulfide and sulfur dioxide, including a reactor and a separator. Gas inlet pipes, all gas inlet pipes are arranged on the same level, each gas inlet pipe is tangent to the wall of the reactor shell and connected to the cavity of the reaction zone, forming a snail shell shape; the settling zone is connected to the separator, and the separator’s The other end is connected to the top of the tail gas absorption zone of the reactor. The hydrogen sulfide and sulfur dioxide desulfurization reaction is carried out by using the above-mentioned device, and the reaction solution includes water and at least one organic basic compound that can dissolve in water, so that the pH value of the solution is ≥ 7.2. The device and method of the present invention realize the effect of self-stirring of the solution in the reactor, which can increase the dissolution rate and reaction rate of the gas in the solvent, the response time of hydrogen sulfide and sulfur dioxide reaction is below 15s, the reaction conditions are mild, and the obtained sulfur does not need Refined, high purity, simple equipment, easy processing, low investment, safe operation.

The invention discloses a method for producing sulfuric acid by using gypsum. The method comprises the following steps of: (1) putting gypsum powder into a roasting device, heating the temperature to a range between 700 and 850 DEG C, and continually introducing methane gas into the roasting device to react with the gypsum, wherein the molar ratio of the methane gas to the gypsum is 1: (4-4.2); and (2) sequentially introducing the mixed gas of generated sulfur dioxide, carbon dioxide and water vapor into a dust remover and a drying pipeline, then introducing the mixed gas to a condensation pipe of less than 10 DEG C below zero, introducing the rest mixed gas into a sodium hydroxide solution of which the concentration is more than or equal to 50 weight percent, newly introducing the mixed gas into the roasting device, introducing the sulfur dioxide liquefied through the condensation pipe into an oxidation chamber containing a vanadium pentoxide catalyst to convert the sulfur dioxide into sulfur trioxide at the temperature between 500 and 900 DEG C, finally introducing the generated sulfur trioxide into concentrated sulfuric acid of which the concentration is more than or equal to 75 percent, and thus obtaining the sulfuric acid. The roasting temperature in the method is lower than that in other methods for preparing the sulfuric acid by using calcium sulfate, and the method is low in energy consumption and can reduce the production cost.

A process device and process method for hydrogen sulfide and sulfur dioxide liquid-phase reaction desulfurization, including a reactor and a separator. The other end of the reactor is connected to the top of the tail gas absorption area of ​​the reactor; the reaction area is provided with a gas pipe, which is composed of a main gas pipe and a gas branch pipe, and the pipes in the gas pipe are connected to each other, and the two ends of the main pipe II are closed. The hydrogen sulfide and sulfur dioxide desulfurization reaction is carried out by using the above-mentioned device, and the reaction solution includes water and at least one organic basic compound that can dissolve in water, so that the pH value of the solution is ≥ 7.2. The device and method of the present invention can make the reaction gas entering the reactor form a spray with a certain arc, promote the self-stirring of the liquid, facilitate the uniform dispersion of the gas in the reaction solution, and greatly increase the concentration of the gas in the reaction solution. Dissolution rate and reaction rate; the reaction time of hydrogen sulfide and sulfur dioxide is less than 15s, the reaction conditions are mild, the obtained sulfur does not need to be refined, the purity is high, the equipment is simple and easy to process, the investment is low, and the operation is safe.

The invention provides a method for preparing cinepazide maleate. The method comprises the following steps: preparing mixed acid anhydride or acyl halide by taking 3,4,5-trimethoxycinnamic acid as a raw material; then, reacting the mixed acid anhydride or the acyl halide with absolute piperazidine to prepare 1-(3,4,5-trimethoxyphenyl)piperazidine, or dehydrating the 3,4,5-trimethoxycinnamic acid and the absolute piperazidine to generate 1-(3,4,5-trimethoxyphenyl)piperazidine under the action of dicyclohexylcarbodiimide; reacting chloracetyl chloride with nafoxidine to prepare N-(2-chloracetyl)nafoxidine; reacting the N-(2-chloracetyl)nafoxidine with 1-(3,4,5-trimethoxyphenyl)piperazidine to prepare cinepazide free alkali; and salifying the cinepazide free alkali and maleic acid to preparethe cinepazide maleate. The method has the advantages of accessible raw materials, mild reaction condition, simple and easy operation, short synthesis route, high yield, industrial production availability and the like.

A process device and process method for liquid phase desulfurization of hydrogen sulfide and sulfur dioxide, including a reactor and a separator. Inlet pipe, which is arranged on the same level, and the gas inlet pipe extends to the inside of the reaction zone, which is an arc-shaped pipe, or a straight pipe whose end is bent into an arc-shaped; the settling area is connected to the separator, and the separator The other end is connected to the top of the tail gas absorption zone of the reactor. The hydrogen sulfide and sulfur dioxide desulfurization reaction is carried out by using the above-mentioned device, and the reaction solution includes water and at least one organic basic compound that can dissolve in water, so that the pH value of the solution is ≥ 7.2. The device and method of the present invention can increase the dissolution rate and reaction rate of gas in the reaction solution, the response time of hydrogen sulfide and sulfur dioxide reaction is below 15s, the reaction conditions are mild, the obtained sulfur does not need to be refined, the purity is high, and the equipment is simple and easy to process , low investment, safe operation.