39results about How to "Precise control of reaction time" patented technology

The invention relates to a method for preparing alpha-sulfonic fatty acid ester by sulfonating fatty acid ester, comprising the following steps: injecting the fatty acid ester and a sulfonating agent into a micro-structural reactor (5) and a reactor (6) inside diameter of which is a micro passage respectively, mixing and sulfonating the fatty acid ester and the sulfonating agent, controlling the reaction temperature between 50 and 100 DEG C, and controlling the reaction materials to stay for 1ms to 1s in the micro-structural reactor (5) and stay for 0.5 to 30 minutes in the micro-passage reactor (6); and then injecting the reaction materials into a micro-passage reactor (7), aging the reaction materials at a reaction temperature between 50 and 100 DEG C, and controlling the reaction materials to stay for 0.5 to 30 minutes in the micro-passage reactor to obtain the alpha-sulfonic fatty acid ester. In the method, the novel micro-structural reactor is adopted, the defect of difficult control due to strong reaction heat release in the prior art is overcome, the materials can be mixed evenly, the released reaction heat can be removed in time, the reaction time can be controlled accurately, and the method has the advantages of good sulfonating efficiency, simple and safe operation and good product quality.

The invention relates to a method for preparing epoxypropane in a microchannel reactor. The method mainly solves the problems of existence of explosive danger, low conversion rate and low selectivity in the prior art. The technical scheme is as follows: by adopting the method for preparing epoxypropane in a microchannel reactor, gas-phase propylene contacts hydrogen peroxide generated by hydrogen and oxygen in-situ compounding in the microchannel reactor to directly generate the epoxypropane under the action of a catalyst; and propylene and oxygen directly react under the action of a catalyst to generate the epoxypropane, the epoxypropane is collected at the lower reach of the microchannels in the liquid-phase form, and the unreacted gas cyclically enters the microchannel reactor inlet or is evacuated after being diluted. The microchannel reactor comprises at least one microchannel, wherein the sectional dimension of each microchannel is 1 micrometer-1 centimeter, and the sectional dimensions of the microchannel in positions of different lengths are identical or different; and the catalyst is positioned in at least one part of the axial length of the microchannel. The technical scheme well solves the problems, and can be used for preparing epoxypropane.

The invention relates to a method for preparing ethyl lipoate by virtue of a tubular reactor. The method comprises the steps of respectively injecting the raw materials into the tubular reactor for reaction, controlling the reaction temperature to be 40-60 DEG C and the reaction standing time to be 8-36 seconds, and after the reaction is finished, carrying out collection and purification, so as toobtain ethyl lipoate. According to the method, the preparation defects in the prior art are overcome, the heat exchange effect of the reaction is good, the hydrolysis of ester groups is reduced, thereaction time is shortened, the product quality is improved, and the reaction yield is increased.

The invention discloses a rapid high-temperature high-pressure dynamic acid rock experiment device and a rapid high-temperature high-pressure dynamic acid rock experiment method. The rapid high-temperature high-pressure dynamic acid rock experiment device comprises a liquid storage tank, a first magnetic stirrer, multiple reaction tanks, multiple second magnetic stirrers, and a temperature control component, wherein the first magnetic stirrer is used for stirring the liquid storage tank; the multiple second magnetic stirrers correspond to the reaction tanks one by one; the temperature control component is used for performing temperature control on the reaction tanks and the liquid storage tank. The rapid high-temperature high-pressure dynamic acid rock experiment device also comprises a control component, wherein the control component comprises first pipelines and second pipelines which are communicated with the liquid storage tank and each reaction tank; a first valve and a second valve are arranged on each first pipeline; a pressurization source is arranged between each first valve and the corresponding second valve; and the first valves and the second valves are opened at intervals. According to the device and the method disclosed by the invention, the test results can be rapidly and accurately obtained.

The invention provides a method for synthesizing lenalidomide, belongs to the field of anti-tumor and anti-leukemia medicines in organic synthesis, and particularly relates to the method for synthesizing lenalidomide. To solve the problems of low yield, low purity, environmental pollution caused by massive harmful waste, excessive cost for environment-friendly treatment, easily occurred risk of violent explosive, degradation caused by long reacting time at high temperature and low catalyst recycling frequency in a traditional lenalidomide synthesis reaction, the method comprises the following steps: 1, adding a lenalidomide precursor nitro compound into an organic solvent, adding an activated carbon catalyst having a Pd loading capacity of 10 percent, then leading the mixture serving as a material I into a pre-heating module of a microchannel reactor; and 2, respectively pumping preheated material I and a material II hydrogen into a reaction module of the microchannel reactor into a reactor, collecting outflowing reaction liquid, and treating to obtain the lenalidomide. The method is environment-friendly, and has the advantages of high reaction yield, high purity and good economical efficiency.

The invention relates to a method for continuously producing prothioconazole by utilizing a micro-channel reactor and a micro-channel system and belongs to the technical field of organic synthesis processes. The method comprises the following steps: taking 2-(1-chloro-cyclopropyl)-1-(2-chlorphenyl)-3-hydrazino-propyl-2-ol as a raw material, carrying out a cyclization and oxidization two-step reaction in the micro-channel reactor so as to continuously complete a preparation process of prothioconazole, introducing the material into the micro-channel reactor by a metering pump, performing preheating, mixed reaction and quenching crystallization separation so as to obtain the product prothioconazole. According to the method, mass transfer and heat transfer in the reaction process can be enhanced, the reaction temperature and reaction time are accurately controlled, side reactions and a reactant auto-polymerization phenomenon caused by material enrichment in the cyclization process are avoided, and conditions that the side reactions are increased due to 'temperature runaway' and reactive oxygen species overflow in the oxidization process and the like are also avoided. The reaction timeis finally reduced, the atom utilization ratio is improved, the reaction conversion rate is greatly improved, and production of solid wastes and side reactions is reduced.

The invention discloses a method for synthesizing 3,4-dinitropyrazole by using a micro-channel reactor. The method comprises the following steps: with pyrazole as a raw material, subjecting pyrazole and a nitric-acetic anhydride system to nitration in the micro-channel reactor so as to synthesize N-nitropyrazole; then with N-nitropyrazole as a raw material, carrying out thermal rearrangement so asto synthesize 3-nitropyrazole; and finally, with 3-nitropyrazole as a raw material, synthesizing 3,4-dinitropyrazole in virtue of a nitric acid-sulfur acid mixed acid system in the micro-channel reactor. According to the invention, the micro-channel reactor is employed, so the adverse outcomes of hardly controllable process, proneness to local overheating which leads to dangers, easy generation of side reactions and the like of convetional tank reactors are avoided, rapid reaction is realized, and direct enlargement can be realized through increase of the number of parallel micro-channel reactors. With the method, the yield of the synthesized 3,4-dinitropyrazole reaches 87.5%, and the purity of the synthesized 3,4-dinitropyrazole reaches 99.8%.

The invention relates to efficient treatment of sewage, in particular to an efficient sewage treatment device and an efficient sewage treatment method based on SBBR (Sequencing Batch Biofilm Reactor). The efficient sewage treatment device comprises a sewage raw water tank, the SBBR and an electric control cabinet, wherein the sewage raw water tank comprises a water tank inlet pipe, a water tank sludge discharging pipe and a water tank water draining pipe; the water tank water draining pipe of the sewage raw water tank is connected with a water inlet pipe of the SBBR through a water feed pump and a check valve; the water tank water draining pipe of the sewage raw water tank is connected with a high-pressure water spraying head in the SBBR through a backwashing pump and the check valve; filler provides an attaching carrier for microorganisms to survive during the reaction period and serves as a filtration layer during the drainage period; suspended solids are intercepted by a filtering action and the settling time is replaced by the filtration time, so that the running time is greatly shortened; in addition, to-be-treated raw water in the sewage raw water tank is used as backwashing water, so that the operation efficiency is improved remarkably; a frequency conversion control blower is used for providing gas according to actual oxygen demand of the reactor, so that energy conservation and consumption reduction are realized and the treatment cost of the sewage is reduced.

The invention discloses a preparation method of a rapidly-thinned single-element tellurene two-dimensional material, the preparation method mainly comprises the following steps: (1) transferring a pre-prepared single-element tellurene material precipitate into deionized water, and standing for later use; (2) continuously introducing oxygen into the deionized water dispersed with the single-element tellurene material precipitate in the step (1), and heating the deionized water to obtain a single-element tellurene material dispersion liquid; and (3) dispensing the single-element tellurene material dispersion liquid obtained in the step (2) onto a target substrate by adopting a dispensing method to obtain the thin-layer single-element tellurene two-dimensional material. According to the thinning method, the thickness of the single-element tellurene two-dimensional material can be accurately controlled by controlling the flow rate of introduced oxygen and the reaction time, other polar organic solvents do not need to be adopted, new impurity molecules cannot be introduced, and the preparation process is easy to operate, high in controllability, green, environmentally friendly and suitable for industrial production, and a rapid and controllable method is provided for the preparation of the thin-layer single-element tellurene two-dimensional material.

The invention provides a method for catalyzing selective conversion of 2-methylfuran into 1,4-pentanediol. According to the application, the 2-methylfuran is used as a raw material, and a supported platinum-based bimetallic catalyst is used for catalyzing the hydro-conversion of the 2-methylfuran, wherein the PtNi5 / MWNT catalyst is used for carrying out one-pot hydrogenation on the 2-methylfuran in an ethanol / H2O (with a volume ratio of 1.5: 2.0) solvent under the conditions of 2 MPa H2 and 120 DEG C, the conversion rate of 2-methylfuran is 98%, the yield of the 1,4-pentanediol is 69%, and the yield is superior to the yield of most catalysts reported at present. The preparation method is simple in process, acid and alkaline auxiliaries do not need to be added, raw materials are renewable, the catalyst has high activity and stability, reaction conditions are milder, energy consumption is reduced to a certain extent, the catalyst is more environmentally friendly, and the energy problem which the globe faces nowadays can be partially relieved. Therefore, the method has wide application potential in industrial production.

The invention provides micro-channel reaction equipment. According to the heart-shaped structure module of the micro-channel reactor, an inverted-omega-shaped blending groove is arranged in the heart-shaped structure module; the blending groove is provided with an everted opening part, a narrower neck binding part and a larger lung part. When the equipment is used for preparing a halogen-free organophosphorus flame retardant, phosphorus oxychloride and isooctyl alcohol or ethylene glycol monoether are made to enter the pre-cooling module of a micro-channel reactor through a metering pump, thepre-cooled materials enter the heart-shaped reaction module and stay in the blending groove for a short time, and a reaction liquid is discharged after passing through the reaction module. According to the micro-channel reactor disclosed by the invention, the materials are more fully mixed in the blending groove in the reactor, and therefore, reaction efficiency is greatly improved, the reaction time is shortened, and almost no side reaction exists.

The invention discloses a method for preparing glyphosate by continuous oxidation. According to a scheme of the invention, the method adopts a microchannel reactor to prepare the glyphosate, and comprises a batching procedure, a microchannel reaction procedure and a crystallization powder preparation procedure. In the microchannel reaction procedure, the feeding speed of oxygen is changed from high to low; a temperature is stabilized at 60 DEG C and then raised to 90 DEG C; and a pressure is changed from positive pressure to negative pressure. The method provided by the invention adopts the microchannel reactor for a reaction; a glyphosate product obtained by using the method provided by the invention has high purity and high yield; and the method can realize precise feeding, has short reaction time, and generates few side reactions.

The invention belongs to the field of medicine synthesis, and particularly discloses a method for synthesizing 5-isosorbide mononitrate through a micro-channel reactor. According to the method, a nitrating reagent and isosorbide liquid are pumped into the micro-channel reactor respectively for mixing reaction, after the reaction is completed, a product flows out from an outlet of the micro-channelreactor, and through post-treatment, separation and purification, the objective product 5-isosorbide mononitrate is obtained. According to the method, reaction time is short, and compared with a traditional technology, the method is safe, and the yield of the 5-isosorbide mononitrate is greatly improved.

The invention belongs to the technical field of organic synthesis, and particularly discloses a method for synthesizing polylactic acid by adopting a large-channel continuous flow microreactor, and the method comprises the following steps of: dissolving lactide in an organic solvent, then injecting a lactide solution and a non-metal organic catalyst into the large-channel continuous flow microreactor, and carrying out polymerization reaction to synthesize the polylactic acid. According to the method, the non-metal organic catalyst is combined with the continuous flow microreactor, so that the continuous material ratio, the reaction temperature and the reaction time can be precisely controlled, the reaction realizes rapid mixing and mass transfer, and the obtained product is good in reproducibility, stable in quality, high in monomer conversion rate, high in polymerization degree and low in molecular weight distribution index, and can be controlled to meet the high requirement of 1.1-1.3, the yellow index is low, expanded production in industrial reaction is facilitated, and the problems of high synthesis reaction temperature, many side reactions, long residence time, low production efficiency and the like of polylactic acid in the prior art can be effectively solved.

The invention discloses a gynecological tumor cell combined quantitative detection card, a preparation method thereof, and a using method thereof. The gynecological tumor cell combined quantitative detection card comprises a bottom card and a surface card; the bottom card is provided with a sample adding zone, bonding zones, microchannels, time valves, detection zones, and waste liquid zones, wherein the sample adding zone is positioned at one end of the microchannels, the bonding zones are connected with the multiple detection zones through the microchannels and the time valves and are positioned at the other end of the microchannels, the waste liquid zones are connected to the sample adding zone through the microchannels, and the bottoms of the bonding zones and the detection zones are both parallelly connected with the microchannels; and the microchannels are connected with the time valves. According to the gynecological tumor cell combined quantitative detection card, the preparation method thereof, and the using method thereof,the flow rate and the flow quantity of a to-be-tested sample are controlled by the microfluidic technology, gynecological tumor cells with the same marker enter the detection zones through a microchannel, so that mutual interference is avoided, thus the error is reduced, and reaction sensitivity is increased; and the to-be-tested sample is prepared into water-in-water micro-droplets, so that the detection limit is increased.

The invention discloses a methyl mercury visual detection method of gold-mercury alloy nanoparticle growth regulation and control based on a DNA template, and belongs to the technical field of heavy metal detection. According to the method, an HT9 DNA nucleic acid template is uniformly mixed with different concentrations of methyl mercury standard solutions, incubation is carried out for 5 minutesafter mixing, a sodium borohydride solution is added to prepare nano seed crystal by reduction, a hydroxylamine hydrochloride solution and a chloroauric acid solution are sequentially added then, a solution color is recorded after fully and uniformly mixing, a standard color card is established, the absorbance of the solution is determined by a microplate reader and corresponds to the concentration of methyl mercury, and a standard work curve is established. Operation is carried out by replacing the methyl mercury standard solution with a marine product extracting solution, a corresponding solution color is recorded and compared with the standard color card, the absorbance of the solution is detected and substituted into the standard curve, so that organic mercury in a marine product is detected. The method is simple, sensitive, stable and high in anti-interference capability, does not need heating, can be used to complete detection within 30 minutes, and is low in detection cost.

The invention provides a gas-liquid reaction device as well as a use method and application thereof. The gas-liquid reaction device comprises a shell, a gas dispersion module and at least two reaction pipe fittings are arranged in the shell, and the reaction pipe fittings are connected in parallel or sequentially connected in series along the flow direction of reaction liquid. The reaction device designed by the invention is simple in structure, large in gas-liquid two-phase contact area, free of a mechanical stirring part and not easy to leak, and has the performances that: the reaction temperature is accurately controlled, the mass transfer and heat transfer performance is good, the adjustable range of the reaction pressure is large, the reaction time is adjustable, the stock of materials in the reaction process is small, the safety is high, continuous production can be achieved, and the adaptability is wide.

The invention discloses a method for continuously preparing a carbon aerogel precursor. The method comprises the following steps: adding resorcinol into an aqueous formaldehyde solution, and carryingout stirring and dissolving to obtain an aqueous aerogel precursor solution; adding a surfactant into the white oil, and carrying out stirring for dissolving; controlling the flow ratio of the aqueousprecursor solution to the white oil and allowing the aqueous precursor solution and the white oil to be fully mixed in an emulsifying pump to form a suspension; discharging the suspension out of theemulsifying pump, directly feeding the suspension into a tubular reactor, and carrying out heating to realize a full reaction of an aqueous solution to obtain precursor white oil slurry; and finally,filtering and washing the slurry to obtain the carbon aerogel precursor. The method of the invention has the advantages of accurate temperature control, accurate reaction time control, simple operation, high production efficiency, safety and environmental protection performance; and the prepared carbon aerogel precursor is high in tap density after being dried and carbonized, has a certain specific surface area, can be further activated to obtain carbon aerogel with a higher specific surface area, and can be applied to carbon aerogel production.

The invention relates to a method for preparing alpha-sulfonic fatty acid ester by sulfonating fatty acid ester, comprising the following steps: injecting the fatty acid ester and a sulfonating agent into a micro-structural reactor (5) and a reactor (6) inside diameter of which is a micro passage respectively, mixing and sulfonating the fatty acid ester and the sulfonating agent, controlling the reaction temperature between 50 and 100 DEG C, and controlling the reaction materials to stay for 1ms to 1s in the micro-structural reactor (5) and stay for 0.5 to 30 minutes in the micro-passage reactor (6); and then injecting the reaction materials into a micro-passage reactor (7), aging the reaction materials at a reaction temperature between 50 and 100 DEG C, and controlling the reaction materials to stay for 0.5 to 30 minutes in the micro-passage reactor to obtain the alpha-sulfonic fatty acid ester. In the method, the novel micro-structural reactor is adopted, the defect of difficult control due to strong reaction heat release in the prior art is overcome, the materials can be mixed evenly, the released reaction heat can be removed in time, the reaction time can be controlled accurately, and the method has the advantages of good sulfonating efficiency, simple and safe operation and good product quality.

The invention belongs to the technical field of coatings, and particularly relates to a high-transparency self-cleaning MOFs coating and a preparation method thereof. On a glass substrate modified by 3-aminopropyltriethoxysilane, zirconium chloride and tetrafluoroterephthalic acid are used as raw materials, and a hydrothermal synthesis method is used, so that the hydrophobic self-cleaning transparent MOFs coating is formed on the pre-functionalized glass substrate. By controlling the number of the MOFs coatings, the roughness, mechanical stability and light transmittance of the coatings are balanced best. The highest light transmittance of the prepared coating can reach 92%, the water contact angle is 130 degrees, the water contact angle still keeps a hydrophobic state of 130 degrees after liquid impact, and the MOFs coating has high transparency, firmness and self-cleaning performance and has important significance in application of self-cleaning, antifouling, condensation, anti-icing and the like.

The invention relates to a microfluidic chip with a controllable tube side. The microfluidic chip comprises a circular substrate and an annular cover plate capable of being tightly bonded to the uppersurface of the circular substrate; and the interior of the part, corresponding to the annular region of the annular cover plate, of the circular substrate is provided with microtube concave channelswhich have upward openings and closed tail ends and are flush with the upper surface of the circular substrate, the annular cover plate is provided with openings for adjusting the microtube tube sidesin the directions of the microtube concave channels, each opening is connected with one corresponding material outlet of a microtube reactor. The microfluidic chip provided by the invention can directly adjust tube side lengths in real time according to the reaction time and flow rate of the required reaction or detection operation, thereby achieving the purpose of accurately controlling the contact and reaction time of two fluids.

The invention belongs to the field of artificial wetland, and relates to a composite horizontal subsurface flow constructed wetland device. The device comprises a buffering selecting water distribution area, a water level variable treatment area, a biological trickling filter area and a water outlet area. The buffering selecting water distribution area comprises a water distribution area front baffle, a water distribution area rear baffle, a water distribution area left baffle, a water distribution area water distribution plate, a water distribution area bottom plate and a water inlet pipe; the water level variable treatment area comprises a treatment area front baffle, a treatment area rear baffle, a treatment area right baffle, a treatment area bottom plate, a siphon outer sleeve and a siphon inner water outlet pipe; the biological trickling filter area comprises a trickling filter area front baffle, a trickling filter area rear baffle, a trickling filter area left baffle, a trickling filter area right baffle, a trickling filter area lower water distribution plate, a trickling filter area upper water distribution plate and a trickling filter area vent hole; and the water outlet area comprises a water outlet area front baffle, a water outlet area rear baffle, a water outlet area left baffle, a water outlet area right baffle, an inclined bottom plate, a water outlet pipe and awater outlet area vent hole. The constructed wetland provided by the invention can improve the degradation efficiency of organic pollutants and nitrification efficiency of nitrogen.

The invention discloses a full-automatic immunofluorescence detection device, which comprises a main frame. The main frame is provided with a test operation area, a sample adding area and a detection area. The detection area consists of a reagent card tray transmission mechanism, a scanning mechanism and a temperature controlled incubation mechanism. The sample adding area consists of a sample loading mechanism, a Tip head mechanism and a sample adding mechanism. The detection area consists of an optical detection mechanism and detection software. The scanning mechanism and the temperature controlled incubation mechanism are connected to the detection software, the scanning mechanism is disposed at the upper end of the reagent card tray transmission mechanism, the rear end of the reagent card tray transmission mechanism is equipped with a sample adding platform, reagent cards are sent into the temperature controlled incubation mechanism through a push-card-into-incubation mechanism and an incubation card push mechanism, and the temperature controlled incubation mechanism is provided with a laser scanning mechanism. By adopting the full-automatic immunofluorescence detection device provided by the invention, the detection process is automatically completed mechanically, the efficiency is improved, tedious manual operation is saved, automatic detection is realized, and the detection time is saved. Therefore, the full-automatic immunofluorescence detection device is convenient for application to emergency rooms, laboratory departments and other public places, community hospitals and other occasions, has high cost performance and strong market competitiveness, and fills the domestic blank.

The invention discloses a rapid high-temperature high-pressure dynamic acid rock experiment device and a rapid high-temperature high-pressure dynamic acid rock experiment method. The rapid high-temperature high-pressure dynamic acid rock experiment device comprises a liquid storage tank, a first magnetic stirrer, multiple reaction tanks, multiple second magnetic stirrers, and a temperature control component, wherein the first magnetic stirrer is used for stirring the liquid storage tank; the multiple second magnetic stirrers correspond to the reaction tanks one by one; the temperature control component is used for performing temperature control on the reaction tanks and the liquid storage tank. The rapid high-temperature high-pressure dynamic acid rock experiment device also comprises a control component, wherein the control component comprises first pipelines and second pipelines which are communicated with the liquid storage tank and each reaction tank; a first valve and a second valve are arranged on each first pipeline; a pressurization source is arranged between each first valve and the corresponding second valve; and the first valves and the second valves are opened at intervals. According to the device and the method disclosed by the invention, the test results can be rapidly and accurately obtained.

The invention relates to an arc process-based graphene / titanium dioxide composite material preparation method. The preparation method comprises the following steps: weighing titanium dioxide, and putting the weighed titanium dioxide between a cathode and an anode of an arc discharge apparatus; introducing a helium and air mixed gas into the arc discharge apparatus; starting the arc discharge apparatus to discharge, adjusting the current size, controlling the reaction time; and ending the discharge to prepare the graphene / titanium dioxide composite material. The method overcomes the discharge danger in hydrogen atmosphere, accelerates the reaction speed of raw materials through arc discharge, and has a short synthetic time. The method has the advantages of simple technology, convenient operation and strong practicality.

The invention relates to a method for treating molten iron in a production process of spheroidal graphite cast iron, vermicular graphite cast iron or molten iron desulphurization. According to the method, a spheroidizing agent, a vermicular agent or a desulfurizing agent are put into a reaction chamber formed in a molten iron treatment ladle for treating the molten iron, wherein an inwards protruded type annular belt and the reaction chamber are arranged in the molten iron treatment ladle; magnesium steam generated during molten iron reaction is diffused outwards through the charging hole of the reaction chamber and a decompression groove. Therefore, the problems of moving and upward floating of the spheroidizing agent, the vermicular agent or the desulfurizing agent after melting loss are solved, the problems of strong reaction and low absorption rate of effective elements during treatment of the molten iron in the ladle are solved, the reaction time of the molten iron is accurately controlled, the product quality is improved, the production cost is reduced, the operation is simple and convenient, the resources are brought into full play and utilized, and the production environment is remarkably improved; in addition, the molten iron in the molten iron treatment and pouring processes is slightly cooled, the absorption rate of the effective elements is high, and the consumption of rare earth element RE can be reduced by 50-75%.

The invention discloses a method for preparing 4,5-dinitroimidazole by using a microchannel reactor. The method uses a micro-mixer to strengthen the mixing of raw materials. Unlike traditional reactors where the degree of uniformity is limited by the uneven flow field generated by stirring, the flow focusing technology adopted by the HPIMM micro-mixer can force two streams of fluid thin laminar flow Through the converging chamber, an efficient and uniform thin-layer contact reaction is produced, the stoichiometric ratio of the reactants is precisely controlled, and the amount of strong acid is reduced from the source, and the reaction is caused by the amount of acid and temperature changes in the traditional tank reactor. The generation of multi-nitration by-products eliminates mass transfer resistance and thus avoids the generation of hot spots, and solves the huge safety problem caused by the intense heat release of 4,5-dinitroimidazole in conventional reactors. The present invention utilizes the microsystem to synthesize 4-nitroimidazole and 4,5-dinitroimidazole to obtain high yields of 96.1% and 92.4%.

According to the multi-channel automatic detection equipment for the immune quantitative detection reagent strip, all components are connected through bolts, a putting-in component is mounted on a pushing component, the pushing component and an analysis component are mounted on a conveying component, and the conveying component is directly mounted on a mounting bottom plate of a bearing component. An advanced distributed computer monitoring system is applied through an automation technology, the system is stable and reliable in operation and high in expansibility, multi-channel automatic detection of the immune quantitative detection reagent strip is realized, redundant pollution caused by holding the reagent strip by a hand is avoided, the reaction time of the reagent strip can be accurately controlled, and detection is performed on time; by improving the accurate image recognition system, the accuracy of the to-be-detected item of the reagent strip is accurately detected, the problem of human eye recognition errors is solved, the problem of human eye fatigue is solved, and the efficiency is improved.