18 results about "Activation energy" patented technology

DEPCT6720 / 08 / 2567 Zirconia powder containing 2% by mol or more and 8% by mol or Less than that of the stabilizing element and 50 ppm or less of titanium (Ti) and containing Activation energies of 225 kJ / mol or more, and 300 kJ / mol or less, are provided. There is at least one zirconia powder that can produce sintered objects with high transparency. By using pressureless sintering, a method suitable for industrial production, the following can be employed: Zirconia powder production: methods for manufacturing calcined objects using zirconia powder and techniques. For the production of sintered objects using zirconia powder, the powder is desirablely manufactured by: The method involves the following steps: adjusting the pH of the raw material solution containing the source. Zirconium and its stabilized sources are at 3.5% or higher and 5.5% or lower. Heating the raw material solution to produce zirconia sol solution; mixing the zirconia solution. And alkaline solutions for co-sludge production and heat treatment of the co-sludge;

The application relates to the technical field of carbon material processing, and particularly discloses graphene and a preparation method thereof, the preparation method comprising the following steps: performing first heating treatment on a carbon source material under a first temperature; applying a first electric field to the carbon source material subjected to the first heating treatment to obtain an intermediate product; performing second heating treatment on the intermediate product under a second temperature; applying a second electric field to the intermediate product subjected to the second heating treatment to obtain graphene; wherein the first temperature is not lower than 800 DEG C, the second temperature is not higher than 3000 DEG C and higher than the first temperature; the intensity of the first electric field is not lower than 500 N / C, and the intensity of the second electric field is not higher than 20000 N / C and higher than the intensity of the first electric field. The aforementioned preparation method has the characteristics of wide raw material sources, can effectively reduce the dependence on fossil-based carbon sources, and can obtain graphene with few defects, high crystallinity and excellent electric conductivity under a relatively low activation energy.

This disclosure discloses a method for predicting the environmental transformation performance of pollutants, comprising: obtaining a first target reactivity parameter of a target pollutant and a second target reactivity parameter of a target environmental medium, wherein the first target reactivity parameter includes at least one of the following: a first ionization potential, a first affinity potential, molecular hardness, and molecular softness; the second target reactivity parameter includes: redox potential; inputting the first target reactivity parameter and the second target reactivity parameter into a pre-trained activation energy prediction model, and outputting a target reaction activation energy, wherein the target reaction activation energy characterizes the reaction activation energy of the transformation of the target pollutant on the surface of the target environmental medium; and predicting the transformation performance of the target pollutant on the target environmental medium based on the target reaction activation energy.

The application relates to the technical field of metallurgical process control, in particular to a method for predicting the viscosity of smelting slag of oxidized-copper sulfide concentrate and application thereof. Based on the mass of specific raw material components in the slag of the to-be-detected oxidized-copper sulfide concentrate after oxygen-enriched top-blown smelting, the reference viscosity value of the slag is calculated by combining the pre-set smelting temperature, the pre-factor and the viscous activation energy; then the volume fraction of Fe3O4 obtained after oxidation is calculated according to the mass of the specific raw material components of iron; the predicted viscosity value of the slag is calculated by substituting the volume fraction of Fe3O4 and the reference viscosity value into an expression, which provides a basis for subsequent regulation and control of the smelting process based on the predicted viscosity value; and the problem of how to predict the viscosity of the slag of the oxidized-copper sulfide concentrate to optimize the smelting process is solved.

The method is for homolytic and heterolytic cleavage in molecules of gases and liquids with the release of bonding energy and its use to change the internal geometric architecture of some molecules, leading to the synthesis of new chemical compounds that are not contained in the initial gases and liquids, with the secondary release of energy during the synthesis process, without carrying out nuclear reactions on equipment for its realization, characterised by an increase in the energy of the work environment and use of this energy to generate thermal energy with simultaneous synthesis of new chemical compounds, in consequence of the physical effect of a standing pressure wave on the gas and liquid molecules at various temperatures, where the temperature is a measure of activation energy, and subsequent dissociation of the molecules into atoms or fragments of molecules (radicals), partial ionization of atoms and subsequent transformation of the bonds in atoms of the molecules with no change to atomic number but with a change to atomic mass and in the proton-neutron ratio. The method also consists in the direct conversion of neutron mass into the mass equivalent to the total mass of 1 electron and 1 proton that do not go beyond the framework of the electrodynamic interaction of electrons and the nucleus, which ensures the absence of radiation, where the method also consists in the transformation of an atom into a chemical molecule or the reverse transformation of 1 electron and 1 proton into 1 neutron from the volume, where these elementary particles can be free, with external exchange of energy and mass equalling the mass with a positive charge and equal to the reduction in the mass of the neutron and proton. The method furthermore consists in a back reaction to the physical effect consisting in the formation of new chemical compounds that are not contained in the initial gases and liquids, with the release of the energy produced during the process of recombination of atoms into the original molecules, where the execution of the proposed method takes place through a combination of initial influences, such as for example: 12 C 1 H 4=16 Ne=16 O, while the method further consists in rearranging the architecture of some molecules without changing the atomic number, mass number, atomic weight as a reaction to a physical impact, during which new chemical compounds are synthesized, including those that they are not contained in the initial gases and liquids, while the energy generated during these synthesis reactions is released, for example 14 N 2=12 C 16 O; 12 C 16 O 2=14 N 2 16 O. The proposed method is implemented by a combination of initial influences, such as:increase in temperature of up to 250° C., ideally 140° C. to 150° C.;reduction in pressure (creation of a reduced atmosphere) to-100 kPa, ideally-65 kPa;generation of standing pressure waves;electric discharge (tribostatic discharge, barrier, spark) with a breakdown voltage of 1 to 15 kV;the value of the magnetic field in the reactor based on the discharge in the gas is 70 to 120 nTl;micro-explosions;impact, impact force, at which negative acceleration at from 50,000 to 150,000 g occurs;or a combination of these influences.The apparatus for converting hydrocarbon and non-hydrocarbon gases and liquids consists ofan acceleration module, which is a piece of apparatus accelerating a mixture of gas and liquid up to a speed of 30 to 400 m / s;a deceleration module, which is a tribostatic energy generator covering 70% to 90% of the reactor's cross-section;a tribostatic generator, which consists of two electrodes which are placed side by side an on which positive and negative charges are mutually created;a reduced atmosphere zone after the deceleration module.

This invention discloses a threshold switching material, a threshold switching device, and a method for preparing the same. The chemical formula of the threshold switching material is M. x D 1‑x Wherein, M is one of La, Ce, Gd, Lu, Sc, Y, Zr, Mo, Hf, W, and Ta, and D is one of S, Se, and Te, with 0.1 ≤ x ≤ 0.8. In this invention, M is selected from metallic elements, which have good conductivity. This is beneficial for increasing the driving current and reducing the randomness of conductive path formation, thereby improving the switching speed of threshold switching devices based on this threshold switching material. The unique d-orbital electronic structure of the selected M elements makes M... x D 1‑x The high crystallization activation energy results in a lower leakage current. The selected element M has an atomic number greater than 20, a small atomic diffusion coefficient, and is less prone to component segregation, resulting in high stability and thus contributing to a longer fatigue life and higher device reliability.

The application discloses a kind of dynamics calculation method, dynamics calculation model and application of lime nitrogen method process preparation cyanamide, the dynamics calculation method includes the following steps: step 1, construct reaction system molecular initial model;Step 2, structure optimization and vibration analysis are carried out to molecular initial model;Step 3, transition state search is carried out to reaction path;Step 4, the free energy of solute molecule in aqueous solution environment is calculated;Step 5, reaction kinetics and thermodynamic parameter calculation.The dynamics calculation model of lime nitrogen method process preparation cyanamide of the application reveals the microcosmic reaction mechanism of lime nitrogen method process, obtains Arrhenius kinetics equation, and reaction activation energy, pre-exponential factor and other key kinetic parameters, chemical reaction information such as intermediate, transition state that cyanamide generates experiences, forms theoretical support for the reaction process optimization improvement of lime nitrogen method, provides process parameter design basis for the optimization of equipment and plant scale system optimization.

The application discloses a kind of polymer stress-aging sensitivity characterization methods under multi-field combined action, belong to dielectric material aging evaluation technical field.The method includes by constructing the molecular chain fracture energy barrier reduction model based on transition state theory, obtain theoretical energy barrier reduction threshold and aging rate constant, calculate to obtain the dynamic life index under different aging time;Based on the polymer sample after aging, by thermogravimetric analysis and Coats-Redfern method constructs thermal decomposition kinetics model, and the activation energy under different aging states is calculated;By comparing and analyzing the change law of life index and activation energy, the comprehensive sensitivity evaluation under the electric-thermal coupling effect is carried out;The physical self-consistency of model is verified by introducing entropy compensation effect thermodynamic equation.The application realizes the comprehensive quantitative characterization of polymer stress-aging sensitivity under electric-thermal combined action, with the advantages of clear physical meaning, can simultaneously characterize electric and thermal stress, clear mechanism explanation and the like.

The application relates to the technical field of oil processing, and discloses a method for preparing diester oil through enzyme catalysis, which comprises the following steps: adding plant raw oil, glycerol, tert-butyl alcohol and cross-linked gelatin immobilized whole-cell enzyme into a reactor to mix, performing constant-temperature mass transfer reaction under normal pressure by heating, stopping heating when the reaction reaches the end point, and performing vacuumization on the reactor under reduced pressure, using part of the tert-butyl alcohol in the system to absorb latent heat through reduced-pressure boiling vaporization, so that the system is rapidly cooled; then, the vaporized tert-butyl alcohol is condensed and refluxed, and the constant-temperature quenching reaction is continuously performed at a lower temperature; finally, the cross-linked gelatin immobilized whole-cell enzyme is separated, the supernatant is collected, and the tert-butyl alcohol is removed, so that the diester oil is obtained. The method utilizes reduced-pressure flashing to realize in-volume synchronous heat absorption, eliminates the lag phenomenon of conventional physical heat transfer, makes the reaction system rapidly drop below the activation energy threshold of consecutive side reactions, effectively blocks the conversion generation of by-products, and guarantees the overall yield of the target product.

The application discloses a water quality online monitoring self-adaptive calibration method based on a reagent attenuation model and belongs to the technical field of automatic water quality monitoring. In view of the problem that data drift is caused by reagent degradation of an existing water quality monitoring station, the application builds a reagent attenuation characteristic library through an accelerated aging experiment, obtains initial sensitivity, a half-life and an apparent activation energy, monitors a reagent use length and an environmental temperature in real time, calculates an equivalent use length based on an equivalent time model, calculates real-time sensitivity according to an exponential attenuation model, dynamically corrects an initial standard curve, inputs a quality control test deviation into a Kalman filter, closes loop correction of a decay constant to compensate for batch differences, and finally pretests a reagent remaining effective length and generates a replacement warning. The application solves the problem of data drift between two manual calibrations, improves monitoring accuracy by more than 20%, prolongs a reagent replacement period by 30%, significantly reduces operation and maintenance costs, only needs to install a temperature sensor, and has very high practical value.

The application belongs to the technical field of magnetic materials, and provides a high-power-density low-loss manganese-zinc ferrite material and a preparation method and application thereof.The manganese-zinc ferrite material comprises main components and auxiliary components, the main components are Fe2O3, ZnO and Mn3O4, and the auxiliary components are CaCO3, SiO2, Co2O3, V2O5, MoO3 and Nb2O5; the preparation method is to optimize the sand milling process, design different diameter steel ball ratios to reduce the difference between the powder particle size D90 and D50, and then reduce the difference in activation energy required for grain growth, so as to realize the uniform growth of grains; at the same time, by appropriately reducing the powder particle size to increase the specific surface area and activity, combined with the ultra-low temperature liquid phase sintering technology, fine and uniform grains are obtained, the material loss is effectively improved, and the manganese-zinc soft magnetic ferrite material with high temperature low loss characteristics at 1MHz, 130mT is successfully prepared, which can be applied to high-power-density power converters.

To provide a proton conductor that can ensure high proton conductivity over a wide range of temperature and humidity. [Solution] The proton conductor is used in environments above 100°C. The proton conductor is a composite of polymerized zwitterions and phosphonic acid. Under high temperature and low humidity conditions, the phosphonic acid is partially anionized by the zwitterions and becomes a proton carrier. Therefore, high proton conductivity can be obtained even without humidity. Furthermore, under low temperature and high humidity conditions, proton conduction by phosphonic acid alone decreases according to the activation energy, but water is retained by the dipole of the zwitterion. Therefore, under high humidity conditions, protons are donated to water by the phosphonic acid, thus improving proton conductivity. Thus, it is possible to ensure high proton conductivity over a wide temperature and humidity range.

The invention relates to compositions for use as structural construction materials with fire retardant properties and methods of making same. The composition comprises 26-40 wt.% water glass, 2-5 wt.% NaOH, 18-28 wt. % FeSi, 30-40 wt.% fly ash, 1-10 wt.% metakaolin, and 1-6 wt.% mica. The methods of making the material controls two exothermic reactions to control the density of the material by adjusting the amount of NaOH and FeSi, or by starting the two exothermic reactions at separate times, where the first reaction provides optimal activation energy for the second reaction. The material is manufactured by dissolving the NaOH in water glass to obtain an aqueous solution, mixing ferrosilicon, fly ash, metakaolin, and mica all at once or individually into the aqueous solution to obtain a slurry, pouring the slurry onto a surface, leveling the slurry, and allowing the slurry to set to obtain the structural material.

This invention relates to the field of metal pressure processing technology and discloses a precision extrusion process for recycled aluminum alloy profiles based on the step-controlled temperature-controlled melt rheological properties. The process includes: measuring the thermal deformation activation energy and target Zener-Hollomon parameters of the recycled aluminum alloy ingot; establishing a discrete temperature step along the ingot axis, including a low-temperature isothermal zone and a high-temperature isothermal zone; and, based on the physical temperature zone of the ingot entering the deformation zone, performing an exponential velocity decay constrained by the Arrhenius constitutive equation. This invention, by constructing an inverse physical duality between the temperature field and the velocity field, counteracts the matrix softening caused by temperature rise, locks the rheological state of the metal within the deformation zone, and maintains a constant shear drag force of the matrix metal on the hard impurity phase. This achieves homogenized microstructure forming under an unsteady temperature field, eliminating impurity debonding and surface defects.

A dynamic analysis method for the reflectance of vitrinite in continental hydrogen-rich shale based on normally distributed activation energy is proposed for oil and gas exploration and development, solving the problem that the existing Easy%Ro model is not suitable for the evolution analysis of vitrinite in continental hydrogen-rich shale. This invention includes: S1, a calibration method for the dynamic model of reflectance of vitrinite in continental hydrogen-rich shale; including a calibration method for the reaction dynamics model of vitrinite in hydrogen-rich shale based on in-situ thermal evolution simulation experiments or a calibration method for the reflectance dynamics model of vitrinite in hydrogen-rich shale based on paleothermal evolution history; S2, a forward modeling prediction method for geothermal evolution history based on the reflectance dynamics of vitrinite in continental hydrogen-rich shale. This invention establishes the SL_Ro model by obtaining data from in-situ thermal evolution experiments, which is more suitable for describing the reflectance evolution process of vitrinite in continental hydrogen-rich shale compared to the traditional Easy%Ro analysis method based on discrete distributed activation energy chemical kinetic models and exponential conversion relationships.

The application discloses a kind of prediction method, device, electronic equipment and computer program product of catalyst component.Therein, the method includes: obtaining the activation energy demand that target reactant needs catalyst to provide in the case of generating target product by catalytic reaction, wherein, catalyst includes: multiple catalytic elements, and different catalytic elements provide different activation energy for target reactant;Activation energy prediction model is trained in advance, and the catalyst component that catalytic activation energy provided by catalyst meets the activation energy demand of catalytic activation energy is determined, wherein, activation energy prediction model is used to express the association between the catalytic activation energy provided by catalyst and the catalytic catalyst component corresponding to catalyst, and catalyst component indicates the proportion of multiple catalytic elements in catalyst.The present application solves the technical problem that the design of catalyst component in the prior art is complex.

The application belongs to the technical field of photocatalysts, and particularly discloses a gold-loaded lattice-contracted TiO2 catalyst as well as a preparation method and application thereof. Firstly, by loading gold on the annealed titanium dioxide, the inert C-H bond in the methane molecule can be effectively activated in the photocatalytic process, the activation energy of the reaction is reduced, and thus the conversion rate of methane is improved, which can reach 70 mmol / g / h of C 2+ The yield of the product, wherein the yield of ethane is 66 mol / g / h. Secondly, the catalyst exhibits excellent selectivity. In the reaction of methane oxidative coupling to prepare ethane, the reaction path can be accurately guided to the direction of generating ethane, and the occurrence of other side reactions is effectively inhibited, and the selectivity of the catalyst to C 2+ The product can be as high as 95%. Finally, the catalyst of the application has excellent stability. After 50h of catalytic reaction, the performance does not change obviously, and the catalytic activity and selectivity can be relatively stable without obvious decline.