20results about How to "Guaranteed conversion rate" patented technology

The invention discloses an advertisement design multimedia information system, and relates to the technical field of advertisement design, the advertisement design multimedia information system comprises an advertisement design unit, a release monitoring unit and a database, the advertisement design unit comprises a template analysis module and an advertisement generation module, the release monitoring unit comprises an advertisement release module, a release effect monitoring module and an advertisement promotion analysis module, the video advertisement is generated by analyzing the duration, background music and video special effects of the video advertisement corresponding to the target user, the video advertisement is put in proper putting time, and the advertisement putting effect is monitored; according to the invention, the intelligent production and delivery of the video advertisement are realized, the attraction of the video advertisement and the acceptability of the public are improved, the watching experience of audiences is improved, the promotion effect, the exposure rate and the conversion rate of the video advertisement are guaranteed, and the promotion cost of the advertisement is also reduced.

The invention discloses high-yield diisobutyryl peroxide and a synthetic preparation method thereof, and belongs to the technical field of chemical synthesis. Comprising the following steps: by taking deionized water as a reaction solvent, controlling the temperature at 0-5 DEG C, and meanwhile, under the catalysis of alkali metal, performing peroxidation on isobutyryl chloride to obtain the diisobutyryl peroxide. The yield of the product diisobutyryl peroxide is higher than 90%, the problem that high reaction temperature is needed in an existing preparation method is solved, the production process is simplified, the production cost is reduced, and the production efficiency is improved.

The utility model discloses an early warning device applied to a wind power plant, which relates to the technical field of safety early warning equipment and comprises an early warning reminding mechanism mounted on a main rod (1), a top plate (5) mounted at the top of the main rod (1) and a solar panel (19) mounted on the top plate (5) and connected with the early warning reminding mechanism. The rotating mechanism is connected with the solar panel (19) and is used for controlling the solar panel (19) to rotate; and the control module (23) is connected with the early warning reminding mechanism and the rotating mechanism and is used for controlling the solar panel (19) to rotate by a set angle according to the direction of the sun. According to the early warning device applied to the wind power plant, rotation of the solar panel can be preset according to local sunrise and fall conditions, and the light energy absorption efficiency is improved.

The invention provides a primary acetylene gas production process, and relates to the technical field of acetylene gas production processes, and the primary acetylene gas production process comprises the following steps: firstly, carrying out on-line screening on a crushed raw material calcium carbide in a specially-made feeding bin, and executing at least three times of'vacuumizing-inert gas filling 'pressure pulse cycles, deeply removing air and moisture adsorbed in pores of the calcium carbide particles; then putting the purified calcium carbide into an acetylene generator provided with a temperature control jacket, and carrying out hydrolysis reaction in a low-temperature interval of 40-65 DEG C; in the reaction process, multi-stage rake teeth of a mechanical stirrer are used for providing strong shearing force to peel off a passivation layer on the surface of calcium carbide, and meanwhile, an external circulating spraying system is matched for eliminating the temperature gradient and local overheating in the reaction kettle. And side reactions such as acetylene polymerization, cracking and oxidation are obviously inhibited.

The application discloses a perovskite type medium-temperature desulfurizer and a preparation method and application thereof. The perovskite type medium-temperature desulfurizer comprises a carrier and an active component loaded on the carrier; the carrier is a perovskite type material; raw materials of the perovskite type material include metal salt A, tetra-n-butyl titanate and sodium hydroxide; raw materials of the active component are metal salt B, which is loaded on the perovskite carrier through an impregnation method; the metal salt B is selected from transition metal salt, and the mass percentage of the transition metal salt in the perovskite type material is 1% to 30%. The perovskite type medium-temperature desulfurizer prepared by the application has the best medium-temperature desulfurization effect, and the medium-temperature desulfurization effect can reach more than 99%.

The invention relates to a double-tower system and method for preparing oxalic acid by hydrolyzing dimethyl oxalate, and aims to solve the technical problems of low dimethyl oxalate conversion rate, high energy consumption and complex process at present. The technical scheme is as follows: raw materials are preheated by a DMO preheater and then enter a pre-reactor with circulating mother liquor for pre-hydrolysis reaction; low-pressure steam supplements heat and desalted water, a gas-phase material extracted from the top of the tower is subjected to heat exchange through a mother liquor preheater and a methanol tower reboiler and enters a methanol tower for methanol refining, and a refined methanol product is extracted from the top of the methanol tower; and returning one part of the material extracted from the tower bottom to the reactive distillation tower as reflux liquid, and forming circulating mother liquor by the other part. The dimethyl oxalate conversion rate is high, the product quality is good, consumed water is supplemented in the reactive distillation column in the form of steam, water balance, heat coupling and waste heat utilization of the system are maintained, and the overall energy consumption is reduced.

The application relates to a commodity rearrangement method, device, equipment and storage medium. Main technical solutions comprise the following steps: obtaining a user request, searching according to the user request, and obtaining a plurality of matched commodities; inputting the plurality of matched commodities into an initial arrangement model to obtain a plurality of commodities to be rearranged; obtaining an initial arrangement score of each commodity to be rearranged, obtaining a sorting factor of each commodity to be rearranged according to the initial arrangement score, obtaining a preset bottoming factor, comparing each sorting factor with the preset bottoming factor, and selecting the maximum as a rearrangement factor of each commodity to be rearranged; performing a rearrangement operation on each commodity to be rearranged according to the rearrangement factor, and displaying the rearranged result to the user. The application adopts a dynamic truncation mode to disturb the original sorting scene at the least cost, achieves the effect of the least influence on the initial arrangement result, guarantees the click rate and conversion rate, and ensures that the rearranged commodities meet the demands of the user.

The invention relates to an organic catalyst for 2-heptanone synthesis reaction and a preparation method and application thereof.The organic catalyst is prepared from, by weight, 7-45 parts of active components, 0.1-2.5 parts of auxiliaries and 50-120 parts of carriers, the active components comprise the first active component and the second active component, the weight ratio of the first active component to the second active component is (60: 1)-(3: 1); wherein the first active component is one or more of iron oxide, tungsten oxide, molybdenum oxide, titanium oxide, chromium oxide, vanadium oxide, copper oxide, zinc oxide, nickel oxide, cobalt oxide and manganese oxide; and the second active component is one or more of lanthanum, cerium, indium, praseodymium, neodymium, gadolinium and holmium.

The invention discloses application of a bimetallic catalyst in vinylamine synthesis and a vinylamine synthesis method, and belongs to the technical field of vinylamine synthesis through an ethanolamine method.The vinylamine synthesis is carried out with monoethanolamine and liquid ammonia as raw materials in the presence of hydrogen under the action of the bimetallic catalyst, the bimetallic catalyst is subjected to low-temperature reduction activation or not subjected to reduction activation, and the temperature range of low-temperature reduction activation is 110-220 DEG C. According to the vinylamine synthesis method disclosed by the invention, the bimetallic catalyst subjected to low-temperature reduction activation or not subjected to reduction activation is adopted, so that catalytic activity and product selectivity which are equivalent to those of the conventional bimetallic catalyst subjected to high-temperature reduction activation can be obtained; therefore, the overall economy and safety of the production of vinylamine by hydroamination of monoethanolamine are improved.

The utility model discloses an in-situ dehydration high-conversion-rate methanol synthesis system, and relates to the technical field of fuel synthesis equipment. In the in-situ dehydration high-conversion-rate methanol synthesis system, an inlet of a synthesis tower A and an inlet of a synthesis tower B are communicated with an outlet of a gas raw material supply assembly, so that gas raw materials required by reaction are input into the synthesis tower A and the synthesis tower B; an outlet of the synthesis tower A and an outlet of the synthesis tower B are communicated with an inlet of the methanol discharge assembly so as to discharge methanol; the first switch valve A is arranged between an inlet of the synthesis tower A and an outlet of the gas raw material supply assembly, and the second switch valve A is arranged between an outlet of the synthesis tower A and an inlet of the methanol discharge assembly; the first switch valve B is arranged between the inlet of the synthesis tower B and the outlet of the gas raw material supply assembly, and the second switch valve B is arranged between the outlet of the synthesis tower B and the inlet of the methanol discharge assembly. By using the methanol synthesis system, the conversion rate of methanol synthesis reaction can be increased.

The invention relates to a skid-mounted diisononyl phthalate synthesis device and a synthesis method, and belongs to the technical field of organic chemical synthesis. According to the method, the mixture of the catalyst and the isononyl alcohol and the mixture of the phthalic anhydride and the isononyl alcohol are directly mixed for the esterification reaction, the esterification reaction efficiency is high, the technological operation is simpler, and diisononyl phthalate in the prepared finished product is high in purity, low in acid value and low in viscosity and can be used as a plasticizer to be applied to PVC products; the molar ratio of isononyl alcohol and phthalic anhydride adopted in the esterification reaction is small, the amount of isononyl alcohol which is not completely reacted is relatively reduced while the conversion rate of diisononyl phthalate is ensured, and the difficulty of isononyl alcohol separation and recovery in the subsequent process steps is reduced; the skid-mounted synthesis device is formed by integrally mounting all the equipment on the same base, and is convenient to mount, small in occupied area and convenient to move.

The invention provides a method for preparing sorbitol by hydrogenating glucose, and belongs to the technical field of sorbitol. The method comprises preparing a catalyst carrier, loading, reducing and hydrogenating reactions. The preparing the catalyst carrier comprises the steps of acid washing of carbon nanotubes, ammoniation of carbon nanotubes and stabilization. The stabilization step comprises the steps of adding a hydrochloric acid solution into a reaction container, then adding aminated carbon nanotubes and beta-cyclodextrin, stirring evenly, and performing a stirring reaction once. After the first stirring reaction, dialdehyde cellulose is added, the temperature is raised to 88-92°C at a rate of 0.4-0.6°C / min, ultrasonic treatment is performed, a second stirring reaction is performed after the ultrasonic treatment ends, a 7.8-8.2wt% sodium hydroxide solution is added after the second stirring reaction ends, the pH value is adjusted to 11.3-11.6, stirring is continued for 1.4-1.7h, and after the stirring ends, filtering, washing and drying are performed to obtain the catalyst carrier. The method for preparing sorbitol by hydrogenating glucose of the invention has high glucose conversion rate and sorbitol yield, and excellent catalyst recovery and application performance.

The utility model relates to the technical field of pump stations, and discloses an intelligent pump station for agricultural irrigation. The power supply assembly comprises a photovoltaic panel which is fixedly mounted at the top of the pump station room and is used for generating power; the cleaning assembly is arranged at the top of the pump station room and used for cleaning and dedusting the photovoltaic panel, the cleaning assembly comprises a cross rod used for scraping the photovoltaic panel, and the cross rod is movably arranged above the photovoltaic panel; the contact rod is elastically connected with the cross rod and abuts against the photovoltaic panel, the contact rod is driven to synchronously move through reciprocating motion of the cross rod, then the rubber contact rod can abut against the photovoltaic panel and scrape and clean the photovoltaic panel, dust on the irradiation face of the photovoltaic panel is reduced, and the light conversion rate is guaranteed; water is sprayed to the photovoltaic panel in the sliding process of the contact rod, dry grinding of the photovoltaic panel is avoided, it is guaranteed that the irradiation face of the photovoltaic panel is clean and free of foreign matter blocking light, and manual maintenance work and inconvenience brought by manual maintenance work are reduced.

The utility model belongs to the technical field of renewable energy utilization, and particularly relates to a renewable energy power generation and energy storage device for a photovoltaic power station, which comprises a control box, a horizontal adjusting structure mounted at the top end in the control box, a longitudinal adjusting structure mounted at the top of the horizontal adjusting structure, and a cleaning structure mounted at one end of the front surface of the bottom of the longitudinal adjusting structure. The horizontal adjusting structure comprises a storage battery, a controller is arranged on the left side of the storage battery, an asynchronous motor is arranged on the top of the controller, a rotating shaft is installed at the output end of the asynchronous motor, and a bearing is installed on the outer surface, close to the top end, of the rotating shaft. According to the renewable energy power generation and energy storage device for the photovoltaic power station, the asynchronous motor is used for driving the rotating shaft to drive the rotating disc to rotate, so that the mounting plate is driven to rotate, the horizontal angle of the photovoltaic panel is adjusted, meanwhile, the first electric push rod pushes the first movable part to adjust the longitudinal angle of the photovoltaic panel, and illumination is better utilized.

The invention provides a continuous preparation process of triisobutyl phosphate, which comprises four steps of esterification, deacidification and dealcoholization, refining and isobutanol recovery, in the esterification process, the specific surface area of fluid in a reactor is increased, the reaction rate is increased, the conversion rate of raw materials is ensured, the use of an acidic catalyst in the esterification process is avoided, and the yield of the product is improved. The production of by-products such as HCl in the esterification process is reduced, the alkali washing column is used for replacing the water washing process, the water washing process and the alkali neutralization process can be integrated into one process, the production of phosphorus-containing and acid-containing wastewater is reduced, the wastewater treatment cost is greatly reduced, excessive isobutanol is recycled in the dealcoholization process, and the production cost is reduced. Raw material waste caused in the washing process is avoided, the utilization rate of the raw materials is increased, production energy consumption is reduced, the green chemistry concept and the national environment-friendly emission standard are met, and the method has the advantages of being high in economic benefit, energy-saving, environment-friendly, simple in actual operation and convenient to popularize and implement.

The present invention belongs to the technical field of fuel chemical industry, and provides a kerosene co-refining method. The method comprises the following steps: macro-separating the enriched micro-components from the raw coal to obtain a vitrinite high-enriched coal sample and an inertinite high-enriched coal sample; subjecting the inertinite high-enriched coal sample to catalytic depolymerization treatment, and dividing the product of the catalytic depolymerization treatment into two parts, one part of which is subjected to distillation treatment to obtain a heavy component; the other part is subjected to semi-coke gasification treatment; the heavy component and the heavy oil are mixed to obtain co-refined oil, and the co-refined oil and the vitrinite high-enriched coal sample are mixed to perform a co-refining hydrogenation reaction to obtain a co-refined product. The kerosene co-refining method provided by the present invention greatly expands the restrictions of kerosene co-refining on raw coal, and at the same time, by coupling the catalytic depolymerization technology of the inertinite high-enriched coal sample, the source and quality of the oil sample of kerosene co-refining are broadened, and by using the coal sample by quality, the yield and quality of the kerosene co-refining product are greatly improved.

This invention relates to the field of catalyst technology, providing a supported ruthenium-based catalyst, its preparation method, and its application. The supported ruthenium-based catalyst provided by this invention comprises a support and an active metal Ru; the active metal Ru is dispersed on the surface of the support in the form of elemental atom clusters and Ru oxide clusters; the elemental Ru atom clusters are dispersed around the Ru oxide clusters; the support is an oxygen-containing support. The supported ruthenium-based catalyst provided by this invention exhibits high hydrogenation selectivity and activity. When applied to the selective hydrogenation reduction reaction of 2,4-dinitroaniline, it can effectively improve the conversion rate of the reactants and the selectivity of the target product, 4-nitro-o-phenylenediamine. The preparation method provided by this invention is simple, easy to operate, and suitable for large-scale production.

The invention discloses an order processing method based on a block chain, related equipment and a program product. The method comprises the steps that a network platform responds to an order operation request of an SIM card, order data corresponding to the order operation request is acquired, the order data is sent to a block chain node, and the order data comprises service information of a target service ordered by the SIM card, order operation time, a first order amount and identity information of the SIM card; the network platform receives first rights and interests returned by the block chain node and capable of being obtained by the SIM card, the first rights and interests are determined based on second rights and interests capable of being obtained by the SIM card within a first duration after the order operation time, and the second rights and interests are obtained by the block chain node through query from a block chain based on the order data; and the network platform updates the first order amount based on the first rights and interests to obtain a second order amount.

The invention belongs to the field of fine chemical engineering, and particularly relates to a continuous production method of an ultraviolet light absorber intermediate. The method comprises the following steps: carrying out diazotization reaction on an amine acidic solution and a sodium nitrite solution in a microreactor to generate a diazonium salt solution, then carrying out coupling reaction on the diazonium salt solution and a phenol alkaline solution in a split flow reactor to generate a UV-234 intermediate crude product, and finally filtering and washing to obtain the UV-234 intermediate product. According to the method provided by the invention, the diazotization and coupling reaction time for preparing the UV-234 intermediate is effectively shortened, the decomposition of diazonium salt is reduced, the product quality is improved, the raw material solution does not need to be beaten, the material is uniform and stable for a long time, the amplification effect is basically avoided, the loss of equipment is low, the operation is simple, industrial amplification is facilitated, and the method has a good industrial application prospect.

This disclosure relates to a framework heteroatom titanium-silicon molecular sieve with hierarchical pores, its preparation method, and its application. The framework heteroatoms include titanium. The framework heteroatom titanium-silicon molecular sieve has the following characteristics: 29 Si MAS NMR characteristics: The peak area of ​​the peak at the chemical shift position of the framework heteroatom titanium-silicon molecular sieve at -103±1ppm is denoted as Q3; the peak area of ​​the peak at the chemical shift position of the framework heteroatom titanium-silicon molecular sieve at -113±1ppm is denoted as Q. 4‑1 The peak area of ​​the spectrum at the position with a chemical shift of -116±1ppm for the framework heteroatom titanium-silicon molecular sieve is denoted as Q. 4‑2 As defined in equation (1), X1 is any value between 0.02 and 0.35: X1 = Q3 / Q 4‑1 Equation (1); X2 is defined as any value between 0.10 and 0.60 as in Equation (2): X2 = Q3 / Q 4‑2 Formula (2). This molecular sieve has high catalytic activity and stability, and significantly improves the conversion rate of cyclohexanone oxime and the selectivity of caprolactam.