80 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 provides a prediction system for enlarging a production scale, which comprises the following parts: (a) a production scale enlargement theoretical part for predicting process parameters of factory enlargement production according to data obtained from a laboratory scale test; (b) a "data driving section" that adjusts an amplification parameter obtained from the "production scale amplification theoretical section"; and (c) an auxiliary decision-making part for outputting the corrected factory trial production parameters according to the data obtained from the data driving part. The invention also provides a prediction method for enlarging the production scale. The prediction system and the prediction method are used for predicting the enlargement of the production scale of a cathode active material (CAM) in a lithium ion battery.

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.

The present invention relates to development of stationary phases and preparation of extraction columns having substantially improved capacity (i.e., amount of material purified per single chromatographic run) for lab scale to industrial scale extraction chromatographic separation, from small scale to industrial scale, of rare earth elements (REEs) and the platinum group metals (PGMs). More specifically the invention relates to preparation of stationary phases and extraction columns for extraction of REEs or PGMs as a group from containing matrices of typical REE or PGM feedstock and separation and purification of individual REEs or PGMs from each other.

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.

An evaluation method for ecological performance of an asphalt-related material is provided. Firstly, working condition parameters are determined for evaluating the ecological performance of the asphalt-related material; secondly, based on the working condition parameters, a simulation test is performed on emission of asphalt-related pollutants during a preparation stage of the asphalt-related material; finally, based on a result of the simulation test, a quantitative evaluation of the ecological performance of the asphalt-related material is performed under different environmental impacts. The evaluation method is a laboratory scale simulation method based on measured pollutant emissions and various environmental impact factors, ultimately achieving laboratory scale ecological performance evaluation of the asphalt-related material, which has important reference value for green material selection of asphalt pavement.

A method for preparing N,N'-diacetyl-L-cystine disodium salt, the method comprising: (i) mixing hydroxyalkane (0.5-100 L, preferably 0.5-10 L, more preferably 1-3 L, most preferably 1 L / mole cystine) with sodium base (4.0 molar equivalents / mole cystine) to form a cold solution at a temperature of 5-10°C; (ii) adding cystine (1 molar equivalent) to the cold solution and stirring for a sufficient time to form an alkaline cystine solution; (iii) optionally cooling the cystine solution to 5°C; (iv) adding acetyl chloride (2 molar equivalents / mole cystine) in batches while maintaining the temperature at 3-50°C, preferably at 5-35°C, more preferably below 10°C, most preferably at 5°C, thereby obtaining a white suspension; (v) stirring the white suspension and warming the suspension to room temperature of 15°C-50°C, preferably at 20-35°C, more preferably 20°C, thereby obtaining N,N'-diacetyl-L-cystine disodium salt product dissolved in solution, and a sodium chloride byproduct precipitated solid in the suspension. This specification discloses an exemplary method on a small laboratory scale (500 mg cystine isolate, 688 mg product, 90% yield) (Specification page 13, Example 1).

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 present invention relates to laboratory to industrial scale (small to industrial) extraction chromatographic separation of rare earth elements (REEs) and platinum group metals (PGMs) and relates to the manufacture of extraction columns and development of stationary phases with substantially improved capacity (i.e., the amount of material purified in a single chromatographic run). More specifically, the present invention relates to the manufacture of extraction columns and stationary phases for the extraction of REEs or PGMs (REEs or PGMs as a group derived from comprising matrices of typical REE or PGM feedstocks) and the separation and purification of the REEs or PGMs individually from each other.

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.

The utility model discloses an inert gas flow heating accurate temperature control pyrolysis reactor which is used for biomass pyrolysis in a laboratory scale and achieves the purposes of accurately measuring temperature and conveniently controlling pyrolysis temperature for oscillating pyrolysis. The device comprises a gas electric heating heat storage device, a temperature control device, an electromagnetic valve, a cavity reactor, a four-way valve and a three-way valve, inert gas enters the gas electric heating heat storage device from the three-way valve and is heated to the set temperature through the temperature control device, the electromagnetic valve is used for controlling the flow of the inert gas, then the inert gas is fed into the cavity reactor, the cavity reactor is of a multi-layer design with a special structure, the inner layer is a pyrolytic reaction layer, the middle layer is a cavity heat insulation layer, and the outer layer is a heat preservation material layer. Compared with the prior art, the reactor device disclosed by the utility model adopts inert gas as a pyrolytic reaction heat source, so that the thermal inertia is small, accurate temperature control is facilitated, and kilogram-level biomass isothermal / oscillation heating can be realized.

The invention relates to the technical field of nannochloropsis oculata culture, and discloses a nannochloropsis oculata culture method integrating CO2 recovery and reutilization, which comprises the following steps: constructing a small trapping unit based on a small adsorbent to trap CO2 from low-flow industrial waste gas, and removing impurities in CO2 through a portable washing tower to obtain purified CO2; a high-precision gas analyzer and a sensor are arranged at an inlet and an outlet of the trapping unit, gas components are continuously monitored, and data are transmitted to the central control unit through a wireless communication protocol. According to the nannochloropsis oculata culture method integrating CO2 recovery and reutilization, the activated carbon fiber is selected as an adsorbent, and a compact trapping unit is designed, so that CO2 is efficiently trapped from low-flow industrial waste gas, the trapping efficiency of CO2 is remarkably improved, the occupied space of equipment is reduced, and the method is suitable for large-scale application of a laboratory; a high-precision gas analyzer based on an infrared absorption spectrum technology is mounted at an inlet and an outlet of a trapping unit.

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.

An evaluation method for ecological performance of an asphalt-related material is provided. Firstly, working condition parameters are determined for evaluating the ecological performance of the asphalt-related material; secondly, based on the working condition parameters, a simulation test is performed on emission of asphalt-related pollutants during a preparation stage of the asphalt-related material; finally, based on a result of the simulation test, a quantitative evaluation of the ecological performance of the asphalt-related material is performed under different environmental impacts. The evaluation method is a laboratory scale simulation method based on measured pollutant emissions and various environmental impact factors, ultimately achieving laboratory scale ecological performance evaluation of the asphalt-related material, which has important reference value for green material selection of asphalt pavement.

The utility model relates to a laboratory verification system for ultrasonic industrial application, and belongs to the technical field of ultrasound. The system comprises an ultrasonic transmitting device, an ultrasonic reaction device, a mechanical stirring device and a real ultrasonic power monitoring device, a protection device is arranged on the outer side of the ultrasonic transmitting device. A real ultrasonic power monitoring device is adopted to monitor the real ultrasonic power of a liquid phase solution in an ultrasonic reaction device in real time on line, and the ultrasonic loss coefficient can be calculated according to the real ultrasonic power and the ultrasonic output power of the liquid phase reaction solution. Based on the ultrasonic loss coefficient, the optimized laboratory parameters can be rapidly amplified to the industrial magnitude according to the proportion. The laboratory verification system can solve the problem that the existing ultrasonic equipment is expanded from the laboratory scale to the industrial scale, and eliminates the bottleneck that the output power of the laboratory ultrasonic equipment cannot be quickly amplified to the industrial scale in equal proportion.

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.

With the wide use of lithium ion batteries (LIBs), the recovery and reuse of LIBs attract wide attention. However, recycling and recovery of graphite anode material are neglected due to low added values and harsh separation steps. Although some direct physical recovery methods have been reported, all these methods are limited by harsh separation steps and laboratory scale. The invention relates to a method for recovering high-purity graphite from extraction residues of waste lithium ion batteries. The method is simple and easy to implement, and 99.9% pure graphite is provided. In addition, the method for recovering the high-purity graphite is clean, green, environmentally friendly and commercially feasible.

Disclosed in the present invention is a nickel laterite ore high-pressure leaching residence time optimization system, comprising a data acquisition module, an actual residence time calculation module, an optimal residence time determination module and a residence time control module. The actual residence time calculation module is used for obtaining the actual residence time of an ore pulp in a high-pressure kettle during a high-pressure acid leaching process. The optimal residence time determination module is used for obtaining the optimal residence time corresponding to the maximum revenue value. The beneficial effects of the present invention are: inputting operational conditions such as real-time ore composition, an acid leaching temperature, and an acid-to-ore ratio into a calculation model to obtain the actual residence time and the optimal residence time, such that the residence time of nickel laterite ore in a high-pressure leaching stage can be adjusted on the basis of fluctuations in production, keeping the high-pressure acid leaching process always in the dynamic optimal state of the optimal residence time. Compared with conventional methods for optimizing the residence time by means of laboratory scale tests, the present method has the advantages of a high response speed and accurate 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.