58 results about "Laboratory scale" patented technology

The invention provides a TEM sample and a preparation method and application thereof.According to the preparation method of the TEM sample, on the premise that the hole structure of a semiconductor device is not affected, part of residual polymer accumulated and blocked in a hole opening in the semiconductor device is removed through reactive ion etching, so that the hole opening is expanded and not blocked any more; a protective colloid can enter a pore structure for filling and precursor material plating of atomic layer deposition is facilitated, the definition of the side wall of the pore is enhanced, and the quality and the final observation effect of the TEM sample are effectively improved; the equipment and technology adopted by the preparation method of the TEM sample provided by the invention are low in investment, and the operation process is simpler and faster than that of a Fab etching process; meanwhile, batch laboratory-scale sample treatment can also be realized; in addition, compared with a wet chemical corrosion cleaning technology for removing residual polymers, the problems of chemical reagent residues, chemical reactant pollution and the like at the bottom of the deep hole structure are avoided.

The invention discloses a granular catalyst and a preparation method thereof, and belongs to the technical field of chemical engineering. The preparation method of the granular catalyst comprises the following steps: S1, mixing raw materials containing a carbon material, an active metal material and a solvent to form slurry; s2, the slurry serves as a cathode in an electrode system and is subjected to pulse electrodeposition treatment, and active metal is deposited on the surface of a carbon material to form a particle catalyst; the electrode system is a two-electrode system; an anode in the two-electrode system comprises a dimensionally stable electrode, and an anode electrolyte is a sulfuric acid solution; and the two electrode systems are electrode systems in a flow battery stack structure. According to the preparation method, a flowing slurry and pulse electrodeposition combined method is adopted, so that metal particles are uniformly and stably loaded on a carbon material carrier, and gt is obtained within one-time preparation time of 1h; according to the method, laboratory-scale continuous synthesis of the granular catalyst is realized, and the method is simple in preparation process, mild in reaction condition and high in controllability.

This invention provides a system for predicting production scale up, comprising units of (a) a scale up theoretical unit that predicts process parameters of production scale up with input of experimental data obtained from lab scale trial; (b) a data driven unit that adjusts the process parameters obtained from scale up theoretical unit; and (c) an assistant decision-making unit that outputs parameters applicable for trial production in plant for next round of prediction based on the data obtained from data driven unit, said assistant decision-making unit is configured to map knowledge data from one or more knowledge databases including one or more decision trees. This invention also provides a method for predicting production scale up as well.

The application discloses an indoor fire source loading method for simulating real fire in an underground tunnel, S1: processing a test rock block in the shape of a cuboid; S2: selecting rock blocks as bases and placing the test rock block above the two bases with a distance between the two bases, so as to form a structure similar to a "pin" character; S3: setting a heating groove in the space between the two bases and the bottom surface of the test rock block; S4: spraying fireproof materials at the intersection gap between the bottom of the left and right side walls of the test rock block and the two bases, and at the intersection gap between the bottom of the front and back wall surfaces of the test rock block and the heating groove; S5: placing combustion materials in the heating groove and performing open fire source damage loading; and S6: extinguishing the open fire source and performing post-processing on the test rock block. The method can effectively realize single-side open fire loading on the rock block in a laboratory scale, is closer to the actual situation that the single-side wall of surrounding rock is affected by fire, and is more reasonable and intuitive for simulating and studying rock open fire damage in real fire in an underground tunnel.

The invention relates to the technical field of reef limestone pore filling, in particular to reef limestone pore filling experimental equipment for simulating a marine environment, which comprises a box body and a filling chamber arranged in the box body and used for placing a rock sample, the filling chamber is of a bottom opening structure, the lower part of the filling chamber is connected with a water permeable seat, and the lower part of the water permeable seat abuts against the box body; a water-permeable opening communicated with the bottom of the filling chamber is formed in the water-permeable base, a water injection hole is formed in the upper portion of the filling chamber and communicated with a liquid storage tank located on the outer side of the box body through a water injection pipe, a pressurizing assembly is connected to the liquid storage tank, and a water drainage opening is formed in the box body. The experimental equipment for the reef limestone pore filling technology aiming at the seawater reaction is innovatively provided, the pore filling technology based on the seawater chemical reaction can be explored under the laboratory scale, the real marine environment can be effectively simulated based on the experimental equipment, the repeatable reef limestone pore filling process can be achieved, and the experimental equipment is suitable for the reef limestone pore filling technology. And effective technical indexes are obtained.

A pressure-equalization holder is provided with a laboratory-scale reactor for measuring material deposition with a quartz crystal microbalance assembly. The pressure-equalization holder allows a process liquid from an interior of the laboratory-scale reactor to contact a liquid-facing crystal surface of a crystal of a quartz crystal microbalance assembly. The pressure-equalization holder also allows an inert fluid to contact an inert fluid-facing crystal surface of the crystal, where the inert fluid is at the same pressure as the process liquid.

The invention discloses a high-purity column chromatography purification method of a burning rate catalyst Cartosin, and aims to solve the problems of low purity and high HPLC (High Performance Liquid Chromatography) cost in the traditional method. According to the method, 200-300-mesh silica gel is used as a stationary phase for wet column packing, a Cartosin crude product is dissolved in a low-polarity solvent for sample loading, and a silica gel column is obtained; a mixed solvent composed of a non-polar solvent and a polar solvent is adopted as an eluent for gradient elution, a target fraction is monitored and collected through TLC, and then a product is obtained through rotary evaporation and vacuum drying; according to the method, the purity of cartosin can be increased from about 60% to 93.0% or above, equipment is simple, the cost is low, the process is stable, large-scale amplification from a laboratory to industrial production is easy, and the method is suitable for the requirement of a high-performance propellant.

Laboratory ball mill (1), in particular planetary or centrifugal ball mill on laboratory scale, comprising a support device (8) which is rotatably mounted about a central axis (20), at least one grinding station (10) with a receiving device (16) for at least one grinding vessel (12) that can be filled with grinding material and grinding media, wherein the receiving device (16) is rotatably mounted about an offset planetary axis (24) relative to the support device (8) and is carried by the latter about the central axis (20), a drive (7, 18) for the carrier device (8), a drive (22) for the grinding station (10), wherein the receiving device (16) has a cage (34) which forms a closed rigid frame in a plane parallel to the planetary axis (24) and has a clamping element (62) for axially clamping the grinding vessel (12) in the cage (34), wherein the cage (34) in the form of the closed rigid frame has a lateral opening (54) such that the grinding vessel (12) can be inserted into the cage (34) from the side through the lateral opening (54) for the grinding process and subsequently axially clamped in the cage (34), wherein the cage (34) absorbs the axial clamping force and after the grinding process the clamping of the grinding vessel (12) in the cage (34) can be released again and the grinding vessel (12) can be removed from the cage (34) also from the side through the lateral opening (54).

A laboratory type linear magnetic agglomeration separation device comprises a supporting frame, an inclined strut is arranged on the supporting frame, two magnetic systems are arranged on the inclined strut, a separation column is arranged between the two magnetic systems, a separation sieve plate is arranged in the separation column, a feeding opening is formed in the top of the separation column, and at least one middling / tailing discharging opening is formed in the middle of the separation column. And a concentrate discharge hole is formed in the bottom of the separation column. The device can be used for magnetite separation test evaluation, and can also be used as continuous test equipment connected in series in a magnetite separation process flow to realize continuous ore feeding and continuous separation.

The present application relates to reef limestone pore filling technical field, concretely for a kind of reef limestone pore filling experimental equipment under simulated marine environment, including box and be set in box for placing filling chamber of rock sample, filling chamber is bottom opening structure, the lower part of filling chamber is connected with water-permeable seat, the lower part of water-permeable seat and box abut, water-permeable seat is opened with water-permeable mouth in filling chamber bottom intercommunication, the upper part of filling chamber is equipped with water injection hole, water injection hole is communicated with the liquid storage tank located outside the box by water injection pipe, liquid storage tank is connected with pressurizing assembly, box is opened with drain outlet.The present application innovatively proposes a kind of experimental equipment for the reef limestone pore filling technology of seawater reaction, can explore pore filling technology based on seawater chemical reaction under laboratory scale, based on the present application can effectively simulate real marine environment, and realize repeatable reef limestone pore filling process, obtain effective technical index.

The invention relates to a test unit, in particular for the study of catalysts in reactions involving at least one catalyst and at least one reactant, such as fluid catalytic cracking reactions. The testing unit comprises a descending pipe, a separator, a lifting pipe and a catalyst regenerator, and optionally comprises a catalyst buffer. The conveying of the catalyst is performed by a screw conveyor.

The invention relates to the technical field of chemical process simulation, in particular to a gas-solid two-phase flow inter-phase heat transfer calculation method, system and equipment, and solves the problem that current accurate fine grid numerical simulation can only be limited to laboratory scale calculation and cannot be used for large-scale calculation through filtering analysis and fitting to obtain a gas-solid two-phase flow inter-phase heat transfer calculation model. In the process of amplifying to the industrial scale, the calculation cost cannot be borne by using fine grid simulation; and meanwhile, the problem that a high-precision mesoscale gas-solid interphase heat transfer model is lacked in coarse grid calculation is solved, and the calculation precision is ensured while the calculation efficiency is improved.

The utility model belongs to the technical field of ceramic production equipment, and particularly relates to small ball milling equipment for a laboratory. The device comprises a mounting frame, a ball milling assembly mounted on the mounting frame, a first supporting transmission assembly, a second supporting transmission assembly, a belt transmission assembly and a driving assembly, the first supporting transmission assembly and the second supporting transmission assembly are oppositely arranged in the axial direction of the ball milling assembly, located on the front side and the rear side of the ball milling assembly correspondingly and both in transmission connection with the ball milling assembly. The driving assembly is connected with the first supporting transmission assembly through the belt transmission assembly, drives the first supporting transmission assembly to rotate and drives the ball milling assembly to rotate in the axial direction of the ball milling assembly. In the small ball-milling equipment for the laboratory, the rotating shaft structure ensures the stability of the equipment and the convenience in maintenance, and can axially limit to prevent displacement of components; the rubber sleeve is easy to replace, cost is reduced, friction force is increased, and rotating speed is stable; in addition, the supporting transmission assembly is flexible in configuration and can be adjusted according to the ball milling requirement and the assembly size, and the universality and applicability of the equipment are enhanced.

The application discloses a numerical calculation method for calculating lean hydrogen turbulent combustion, and belongs to the field of hydrogen turbulent combustion numerical calculation. The method establishes an unsteady model containing a mixing fraction Z, a reaction progress variable C and a hydrogen mass fraction control equation, wherein the equation maps the influence of curvature; the control equation is solved, a pre-built small flame library is input to obtain components, temperature, chemical reaction source terms and diffusion coefficients; and a PIMPLE algorithm is used to couple pressure correction cycle iteration to update the flow field. Through dynamic characterization of the curvature effect and combination of the difference diffusion influence, the lean hydrogen flame local superadiabatic state can be efficiently captured, and a high-precision numerical tool is provided for laboratory scale turbulent hydrogen burner optimization.

The melting of glass using microwave heating is a relatively new development and has been tested in laboratory-scale glass production. Various glass systems in the temperature range of 1200 - 1500 °C using MW heating have been implemented as alternative heating methods. These glass systems containing SiO2, B2O3, and P2O5 as the main components of various special-purpose glass matrices have been melted. In small-scale glass melting by microwave heating, the required electrical energy is significantly reduced, and 50 - 75% of the energy is saved. Furthermore, the total time of glass melting is dramatically shortened due to a faster heating rate and volumetric heating. The OH concentration has been found to be lower in barium borosilicate glass and zinc borate glass prepared by microwave heating. A higher Fe 2+ being retained may have the potential to be applied in the development of IR-absorbing glass.

The invention relates to an energy storage power station reservoir surrounding rock deformation in-situ test device and method, the test device comprises a rock sample, a cylinder is drilled in the center of the rock sample, and a reservoir is formed; concrete test blocks are poured on the two sides of the rock sample in the width direction, and strain sensors are arranged on the two side faces of the rock sample in the width direction and located between the rock sample and the concrete test blocks; a sealing rubber cylinder filled with oil is placed in the underground storage and connected with an oil pump, and the oil pump circularly pressurizes the interior of the underground storage to conduct surrounding rock deformation-pressure monitoring. The method is an in-situ test, and can be used for correcting a laboratory scale rock constitutive model according to recorded strain data; the constitutive model of the surrounding rock can be used for numerical calculation, and long-term mechanical response of the reservoir surrounding rock under the action of compressed air cyclic load; the technology is mature, the rock mass of an engineering project can be selected for testing, the rock constitutive model in the specific compressed air energy storage environment is corrected, the operation technology difficulty is small, and large-scale application and popularization can be achieved.

A modular system for blow molding containers is provided.SOLUTION: The system may include a first portion, a second portion, and a third portion. The first portion and the second portion may each include a shell, a mold removably coupled to the shell, and a top plate. The third portion may include a base and a base mold. The mold may be 3D printed. The molds may collectively define a blow mold cavity. The modular system may be used at laboratory scale, pilot scale, or full production scale. The mold may be durable and smooth enough for full production scale. Some embodiments relate to a method for making a modular system for blow molding containers.SELECTED DRAWING: Figure 1

The invention discloses a preparation method of a double perovskite oxide Sr2CrReO6 with high purity. According to the method, strontium carbonate and rhenium heptoxide are taken as raw materials and are subjected to high-temperature reaction under the protection of argon to synthesize an intermediate product; then mixing with chromium sesquioxide and elemental chromium powder, and carrying out high-temperature reaction under a vacuum tube sealing condition to obtain a crude product; and finally, carrying out heat treatment for multiple times in an inert atmosphere, and removing an impurity phase to obtain high-purity Sr2CrReO6 powder. By optimizing the temperature and time of the high-temperature reaction and introducing the heat treatment step, the impurity content is remarkably reduced, and the product purity is improved. According to the compact ceramic prepared from the high-purity powder through a spark plasma sintering technology, the antisite defect is 13.5%, the Curie temperature reaches 610 K, and the saturation magnetization is 0.84 microB / f.u. The method is easy and convenient to operate, low in equipment requirement, high in safety and suitable for laboratory-scale high-quality material preparation.

The utility model relates to a rotary type electric reaction device, and relates to the field of electrochemical technology, the rotary type electric reaction device comprises a rotary electrode, a driving part and a reaction bottle, the rotary electrode is arranged in the reaction bottle, the driving part is connected with the rotary electrode through a mounting assembly, and the driving part is used for driving the rotary electrode to rotate. Through the design of the driving part and the rotating electrode, the ratio of the surface area of the electrode to the volume of the reaction liquid can be increased, so that the reaction rate is increased, the accumulation of sediments can be reduced, the reaction stability and the durability of equipment are improved, and the design of the device considers the requirement that the device can be possibly applied to a process amplification reaction; and optimization from a laboratory scale to an industrial scale can be carried out.

The application discloses a novel bismuth-based chelate CT contrast agent and a preparation method and application thereof. The synthesis method comprises the following steps: 2,6-pyridine dimethyl alcohol is reacted with chlorosulfoxide to obtain 2,6-bis(chloromethyl)pyridine; the 2,6-bis(chloromethyl)pyridine is reacted with N,N',N''-tris(p-tolylsulfonyl)divinyltriamine and an inorganic base in a solvent and is heated, is deprotected by concentrated sulfuric acid to obtain an intermediate pyclen; the pyclen is heated and reacted with a halogenated carboxylic acid ester under alkaline conditions in a polar organic solvent, is hydrolyzed to obtain a ligand product; and the ligand product is heated and chelated with a bismuth agent to obtain the target bismuth-based chelate. The application realizes the laboratory scale preparation of the small-molecule bismuth-based chelate CT contrast agent, and a non-ionic contrast agent is prepared, which has low osmotic pressure, high stability, high water solubility and good biological safety and is used for CT imaging of the digestive system, the urinary system and the circulatory system.

The present invention provides a simple, environmentally friendly method for manufacturing aerogel panels. This method surpasses the laboratory-scale limitations of conventional freeze-casting techniques, which typically produce panels smaller than 5 centimeters. It enables the production of large-scale aerogel panels with uniform pore sizes and parallel pore channels. The aerogel panels produced using this method exhibit ultra-low thermal conductivity and high light reflectivity across their thickness, making them suitable for practical applications in thermal insulation and / or heat preservation, such as exterior walls and roofs of buildings.

This invention provides a TEM sample, its preparation method, and its application. The TEM sample preparation method provided by this invention, without affecting the pore structure of the semiconductor device, first uses reactive ion etching to remove some residual polymer deposits blocking the pore openings on the semiconductor device. This enlarges the pore openings, preventing blockage and facilitating the entry of colloidal materials into the pore structure for filling and the deposition of precursor materials for atomic layer deposition. This enhances the clarity of the pore sidewalls, effectively improving the quality of the TEM sample and the final observation results. Furthermore, the TEM sample preparation method provided by this invention requires less equipment and technical investment, and the operation process is simpler and faster than Fab etching. It also enables batch laboratory-scale sample processing. In addition, compared to wet chemical etching cleaning techniques for removing residual polymers, it avoids problems such as chemical reagent residues at the bottom of deep pore structures and chemical reactant contamination.

The application discloses a synthesis method of a N,N-diphenyl-4-(pyridine-4-yl) aniline B-N coordination compound and application thereof. Under anhydrous and anaerobic conditions, (Me4N)B3H8 is reacted with I2 in THF to prepare an intermediate THF.B3H7, which is then reacted with a ligand N,N-diphenyl-4-(pyridine-4-yl) aniline to obtain a borane complex. Under anhydrous and anaerobic conditions, DMS.BH3 is reacted with the ligand N,N-diphenyl-4-(pyridine-4-yl) aniline in THF to obtain the borane complex. The synthesis method is simple, safe and high in yield, and is suitable for laboratory scale preparation. Optical property research shows that the prepared borane complexes all exhibit significant positive solvatochromic effect, aggregation-induced emission characteristics, mechanochromic performance and high quantum yield, and are ideal organic stimulus-responsive luminescent materials.

The invention provides a deep sea rare earth sediment foundation preparation method based on supergravity centrifugal physical simulation. The deep sea rare earth sediment foundation preparation method comprises the steps of similarity ratio design, solid phase formula design, initial layered filling in a model box, pore solution preparation, supergravity centrifugal accelerated consolidation and similarity evaluation of a model sample and a deep sea original sample. According to the technical scheme, deep sea stress and temperature boundaries can be reproduced at the same time in a laboratory scale, and the consolidation steady-state time is greatly shortened; the solid phase formula aligns the original sample mineral composition and the rare earth element REE spectrum, and pore water chemical alignment actually measures the seawater main ion strength and pH / Eh value; stable batch preparation can be achieved without open sea sampling, the cost and risk of going out of sea, salvaging and transporting are remarkably reduced, indoor low-cost large-scale preparation of deep sea rare earth sediment sea water samples is achieved, and large-scale indoor mechanics, seepage and process evaluation tests are supported; physical property / chemical / microcosmic / mechanical quantitative thresholds are provided, consistency acceptance and engineering application are facilitated, and batch-to-batch consistency and controllability are high.

To provide a reactor scale-up simulator and simulation method suitable for scaling up from a laboratory-scale reactor to a plant-scale reactor.SOLUTION: A reactor scale-up simulator 1, which calculates changes in plant characteristics due to changes in a condition α, includes: a scaler that uses first measurement values from a laboratory-scale reactor R1 and a first model that simulates characteristics of the laboratory-scale reactor to determine parameters of a plant-scale reactor when operated under a condition α1 from the parameters of the laboratory-scale reactor when operated under condition α1, the parameters of the laboratory-scale reactor when operated under a condition α0, and the parameters of the plant-scale reactor when operated under the condition α0; an updater that uses these parameters to generate a second model that simulates the characteristics of the plant-scale reactor; and a plant tester that uses the second model to calculate changes in the plant characteristics of the plant-scale reactor due to changes in the condition α.SELECTED DRAWING: Figure 1

The present invention relates to an automated integrated continuous bioprocess system and bioprocess that are capable of continuously producing therapeutic protein in an uninterrupted manner and scalable from laboratory to manufacturing scale. The present invention provides an automated integrated continuous bioprocess system and bioprocess for producing therapeutic protein, in which the system and process is controlled with one or more control system selected from supervisory control and data acquisition (SCADA) control system (110), proportional integral derivative (PID), programmable logic circuit (PLC), industrial PC (IPC), distributed control system (DCS), message relaying system and automated UPLC / HPLC sampling for online testing to run the system and process and in an uninterrupted manner and continuously produce therapeutic protein.

The utility model discloses an experimental type double fluid atomization spray drier belongs to spray drying equipment technical field, is open system, is especially used for the laboratory scale drying of aqueous solution. Including the organism, atomizer, by glass material one body and is not equipped with independent window's drying room, cyclone separator and fixed mounting in the built -in cloth bag filter of organism. The rated evaporation capacity of the equipment is 2 liters of water per hour, including condensing assembly and tail gas circulating assembly. The utility model structure is extremely compact, and the operation is simple, and the formula screening and small -batch sample preparation in the design of laboratory initial stage research and development are designed.

The present patent of invention describes an advanced method for producing kombucha, structured in distinct phases that separate the anaerobic and aerobic processes. In the first phase (anaerobic fermentation), sweetened tea and a symbiotic culture (SCOBY) are subjected to optimal conditions for yeast activity, generating an alcohol content of 1% to 8% within 2 to 8 days. The product is then transferred to an aerobic fermentation vessel, where the aerobic stage takes place, with continuous oxygenation and mechanical agitation. Temperature control and monitoring of pH and oxygen ensure a high conversion rate and stability of the bacterial culture after an initial adaptation period of 15 to 25 days. The final phase is characterized by a fed-batch regime every 18 to 24 hours, with harvesting of one-third of the volume and immediate replenishment, thereby enabling continuous and predictable fermentation and production. This set-up reduces the total processing time compared to traditional methods, providing a production time typical of laboratory scale for industrial use, whilst maintaining the product's sensory consistency and minimising the risk of contamination. The competitive advantages also include reduced production space requirements, lower operating costs, and greater large-scale production viability, resulting in a technically and commercially significant innovation in the fermented probiotic beverage sector.

The invention relates to a ball mill, in particular a mono-planetary or mono-centrifugal ball mill on a laboratory scale, with a counterweight to provide a counter-moment of inertia for the grinding station or stations, wherein the counterweight can be adjusted by means of an adjustment device to change the counter-moment of inertia adapted to the moment of inertia of the grinding station or stations. According to the invention, the ball mill includes an automatic drive for the adjustment device, by means of which the direction of adjustment of the counterweight can be effected independently of the direction of rotation of the support device.

A modular bioreactor system includes a set, or array, of smaller bioreactor chambers, such as laboratory-scale bioreactor chambers, which can be filled and drained together, while also being able to be isolated to permit the multiplexed bioreactor chambers to be used together to create a larger-scale reaction volume, thereby forming a manufacturing-scale bioreactor.