347 results about "Mineral matter" patented technology

The invention discloses coal gangue-based artificial ecological soil and a preparation method and application thereof, and belongs to the technical field of ecological improvement, the coal gangue-based artificial ecological soil comprises crushed coal gangue and a compound microbial agent, and the compound microbial agent comprises a microbial activating agent and a microbial passivating agent. According to the invention, the coal gangue can be quickly decomposed through the microbial activating agent, useful mineral elements in the coal gangue can be fully activated and analyzed, and the effect of activating a nutrient library in the coal gangue is achieved, so that useful trace elements contained in the coal gangue are effectively released and are easily absorbed by plant growth; meanwhile, harmful heavy metal elements in the coal gangue are passivated through the microbial passivating fungicide, the water-retaining property and the air permeability of the soil are guaranteed by controlling the decomposition particle size proportion of the coal gangue, the soil conditioner can be used for ecological restoration, desert control, agriculture and animal husbandry planting, flower and nursery planting and urban landscaping, the effects of improving the soil and promoting plant growth are achieved, and the soil conditioner is suitable for large-scale popularization and application. The application is wide.

The invention relates to the technical field of coal bed gas development and gas extraction, in particular to an electrodialysis-liquid CO2 time sequence synergistic anti-reflection method and system. Comprising an electrodialysis pretreatment stage, a CO2 synergetic permeability increasing stage and a process regulation and energy recovery stage, a mixed solution is injected into a coal seam in a pulse injection mode, and energy recovery is conducted through pipeline fluid pressure in the injection stopping period. According to the technical scheme, through multi-stage cooperation of electrodialysis pretreatment, CO2 phase change fracturing and pulse consolidation and regulation, accurate transformation of the coal seam low-permeability area is achieved. According to the scheme, electrodialysis is utilized to drive an acidic working solution to target and migrate to a difficult-to-permeate area, mineral substances are dissolved, and pores are expanded; then, high-energy expansion stress is generated through liquid CO2 phase change, and a through fracture network is formed; and finally, a pulse injection and energy recovery mechanism is adopted, fracture closing is restrained, system energy consumption is reduced, and therefore the coal seam breathability and the gas extraction efficiency are integrally improved.

The invention provides a comprehensive evaluation method for dissemination characteristics of minerals in coal of different particle sizes, and relates to the field of coal quality analysis. The method comprises the following steps: collecting coal analysis samples of different size fractions, and preparing coal polished sections of all the size fractions; the method comprises the following steps: collecting microscopic images, and constructing a representative microscopic image sample database of each size fraction; carrying out size fraction judgment, generating a component segmentation image on a single particle and a component segmentation image on a microscopic image, and extracting dissemination characteristic parameters of mineral substances in coal of each size fraction; key parameters are screened out, and comprehensive evaluation is carried out on the dissemination characteristics of the minerals in the coal of different size fractions. According to the method, an image processing technology and multivariate statistical analysis are combined, and qualitative and quantitative analysis of the dissemination characteristics of the minerals in the coal is achieved. Compared with an existing microscopic image analysis method, the method has the advantages that the human subjective influence and the labor intensity are remarkably reduced, and the analysis result has higher objectivity and reproducibility.

The utility model relates to a mineralization system and mineralization equipment. The mineralization system comprises a driving module, an extraction module, a heating module and a water storage module, one end of the driving module is connected with a preset water inlet pipeline, the other end of the driving module is connected with a water inlet of the extraction module through the heating module, and a water outlet of the extraction module is connected with the water storage module through the driving module; when the mineral water is extracted, the preset water body is heated, hot extraction is achieved, the mineral water with the preset concentration can be stably produced, the mineral water is stored in the water storage module, the mineral water with the target concentration is provided according to the target water taking instruction, and the water taking requirements of users for mineral water with different concentrations can be flexibly met.

The invention discloses a self-repairing synchronous grouting material and a preparation method thereof, and belongs to the technical field of grouting materials. The self-repairing synchronous grouting material comprises a cement base material, a microbial capsule and chitosan calcium salt, the concrete comprises the following raw materials in parts by mass: 7-12 parts of Portland cement, 20-28 parts of fly ash, 40-55 parts of quartz sand, 20-30 parts of water, 2-7 parts of bentonite, 1-5 parts of microbial capsules and 1-5 parts of chitosan calcium salt. The self-repairing synchronous grouting material disclosed by the invention is combined with a microorganism self-repairing technology, and mineral substances such as calcium carbonate and the like can be generated through metabolic activity of microorganisms when the material has cracks, so that the cracks are automatically filled, and expansion of the cracks on the surface of a concrete material can be effectively prevented; the grouting material can continuously repair microcracks caused by environmental changes or construction stress in the long-term use process, and the integrity and stability of the structure are kept.

In one aspect, the disclosure relates to a method for recovering critical minerals from a solution, the method comprising: (a) providing a critical mineral solution comprising at least one critical mineral and water; (b) contacting the critical mineral solution with an acid or a base in an amount sufficient enough to adjust the pH to a value of about 2 to about 7; (c) contacting the critical mineral solution with a first modified biochar, forming a first saturated biochar; and (d) desorbing the first saturated biochar, thereby forming a first critical mineral precipitate, a first stripped biochar, and a first aqueous phase. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

The invention relates to a composite metasilicic acid mineralized filter element profile as well as a preparation method and application thereof, and relates to the technical field of water purifiers, the composite metasilicic acid mineralized filter element profile is prepared from the following raw materials in parts by weight: 60 to 80 parts of metasilicic acid mineralized carbon material and 20 to 40 parts of bonding material; the metasilicic acid mineralized carbon material is prepared from the following raw materials in parts by weight: 30-60 parts of metasilicic acid mineralized powder, 30-60 parts of activated carbon powder, 0.3-2 parts of an antibacterial agent, 0.2-1 part of a pore forming agent and 0.5-5 parts of a stabilizer. According to the composite metasilicic acid mineralization filter element profile provided by the invention, the formula of the filter material is designed, so that the composite metasilicic acid mineralization filter element profile has a good specific surface area, the contact area between active ingredients such as mineralization materials and water is ensured, the composite metasilicic acid mineralization filter element profile not only has the adsorption, harm removal and impurity removal functions of activated carbon, but also can separate out mineral substances, and is beneficial to realizing stable release of metasilicic acid.

The invention discloses a coal lithofacies detection device and method, and relates to the technical field of maceral detection, the coal lithofacies detection method comprises the steps of coal rock X-ray plate preparation and microscopic observation, in the coal rock X-ray plate preparation step, crushing, screening, mixing, shaping and surface treatment are performed on a coal sample to form a coal rock X-ray plate; in the microscopic observation step, microscopic components and mineral substances in the coal rock polished section are observed and analyzed to judge the lithofacies type of the coal. According to the coal lithofacies detection device and method provided by the invention, the metamorphism degree, the combustion characteristic, the chemical reactivity, the processability and the like of coal are evaluated by analyzing the maceral components, the mineral components and the contents of the maceral components and the mineral components of the coal; in the coking process, coal blending is carried out based on the lithofacies of the coal, so that the proportions of different coal types can be more accurately blended, the optimal coal blending scheme is selected, combustion is more economical and effective, the calorific value of the coal and the yield of coke are increased, and the ash content and the sulfur content of the coke are reduced.

The invention relates to the technical field of oil and gas well wall stability and fracturing yield increase development, in particular to a deep high-temperature rock statistical damage constitutive model construction method which comprises the following steps: performing mineral component and microstructure analysis on a deep rock core by adopting XRD (X-Ray Diffraction) and SEM (Scanning Electron Microscope) technologies, and performing quantitative statistics on mineral content to obtain a deep high-temperature rock statistical damage constitutive model. The method comprises the following steps: acquiring rock brittleness and plasticity characteristic basic data, performing a triaxial compression test by adopting a high-temperature triaxial compressor, and establishing a constitutive model capable of reflecting deep high-temperature rock damage; according to the mechanical characteristics of the deteriorated rock due to temperature rise, the provided model is verified to accurately simulate stress-strain curves of a sample in each stage of a single axis and a conventional three axis under different temperatures and confining pressures, the rationality of indexes is verified, and the deep high-temperature rock statistical damage constitutive model is obtained. The method solves the problem that in the prior art, a statistical damage constitutive model capable of accurately reflecting stress-strain characteristics of the deep high-temperature rock at each stage of a single axis and a conventional three axis under different temperatures and confining pressures is lacked.

A soil conditioner belongs to the technical field of soil improvement, and comprises, by mass, 8-12 parts of chitosan oligosaccharide, 2-3 parts of cellulose oligosaccharide, 5-10 parts of alginate oligosaccharide, 2-6 parts of licorice oligosaccharide, 30-40 parts of humic acid, 5-8 parts of a microbial agent, 10-20 parts of minerals, and 5-10 parts of manganese oxide modified charcoal. According to the invention, oligosaccharide is used as an inducer, humic acid is used for constructing a soil skeleton, microorganisms are used for realizing nutrient circulation, and mineral substances and manganese oxide modified charcoal are used for providing long-acting support, so that biostimulation is used as a guide, the soil structure is adjusted, microbial flora is improved, and the crop yield is increased; the heavy metal polluted soil condition is improved.

The application discloses a kind of water cup of preparation hydrogen-rich mineral water and its using method, it is related to water cup technical field.The cup body, cup cover assembly, ceramic mineralization ball filter material, base assembly and hydrogen production assembly are included.When hydrogen-rich mineral water is prepared, first, the water cup is vertically erected, water is injected into the cup body not more than the highest water level line, ensure that water does not contact ceramic mineralization ball filter material, hydrogen production assembly is started at this time to produce hydrogen, when hydrogen production ends, the water in the cup body becomes hydrogen-rich water containing hydrogen gas;Then, the cup body is inverted, hydrogen-rich water seeps into the mineralization cavity through the opening at the bottom of the mineralization cavity to soak the ceramic mineralization ball filter material containing a variety of mineral trace elements, the mineral trace elements in the ceramic mineralization ball will dissolve into hydrogen-rich water, and hydrogen-rich mineral water is obtained, and users can very simply obtain healthy hydrogen-rich mineral drinking water.

The invention discloses a method for evaluating the coal quality level by using coal coke lithofacies detection indexes, which comprises the following steps: S1, measuring the macerals of coal, including the mineral content and the active-inert ratio; s2, measuring coke optical structure indexes of the coal, wherein the coke optical structure indexes comprise an inlaid structure, an anisotropic silk structure and a fragment structure with the coke optical isochromatic zone size of 0-10 microns; s3, calculating an optical tissue coefficient (OTI); and S4, evaluating the coal quality according to the evaluation standard. According to the method, the accuracy and reliability of coal quality evaluation are improved, so that coal quality misjudgment of coal types with various metamorphic degrees is avoided, coal quality resources are reasonably utilized, and high-quality resources are saved and the coal blending cost is reduced on the premise of ensuring the metallurgical performance of coke.

The present invention discloses the system and method of preparation of a surface-modified crystalline blend to enhance the properties of water by optimizing its mineral composition, alkalinity, and bioavailability. The crystalline blend comprises Tourmaline, Shungite, Jade, Silica, Zeolite, Lava Stones, and Calcareous Shale, with additional minerals like Maifan, Calcite, and Dolomite to enhance water quality. The invention utilizes Bioactive Crystal Resonance Technology (BCRT), wherein individual minerals are heated below their phase transition temperature to activate them while maintaining their crystalline state providing controlled activation and ensuring a regulated release of beneficial minerals, preventing excessive increases in pH or TDS levels while significantly reducing heavy metal leaching. The system includes a perforated membrane leveraging irregularly shaped crystals ranging from 0.5 to 5mm, allowing water to interact with the modified minerals to restore essential nutrients, increase hydration efficiency, improve detoxification, alkaline water, and provide antioxidant benefits.

The invention discloses a method for preparing landscaping planting soil from phosphorus chemical solid waste, and belongs to the technical field of resource recycling. The method comprises the following steps: (1) drying, crushing and harmlessly treating phosphate tailings, phosphogypsum and flotation residues; (2) decomposing the organic manure; (3) mixing and aging the raw materials; and (4) granulating. Heavy metal pollution is reduced through innocent treatment, the soil structure is improved by combining organic matter, microorganisms and mineral substances, the nutrient release efficiency and the water-retaining property are remarkably improved, the obtained soil meets the landscaping requirement, and dual improvement of solid waste recycling and ecological benefits is achieved.

The invention discloses a mineral substance feeding device. The mineral substance feeding device comprises a shell, a large particle separation bin, a medium particle separation bin, a small particle separation bin, a vibration separation mechanism and a material lifting and moving mechanism. The vibration separation mechanism comprises a vibration separation bracket, a material guide basin, a large particle separation sieve plate, a medium particle separation sieve plate and a vibration rotating mechanism; the vibration rotating mechanism drives the material guide basin, the large particle separation sieve plate and the medium particle separation sieve plate to vibrate and rotate; the large-particle separation sieve plate is used for separating large-particle mineral substances and throwing the large-particle mineral substances into the large-particle separation bin through rotary centrifugation, and the medium-particle separation sieve plate is used for separating medium-particle mineral substances and throwing the medium-particle mineral substances into the medium-particle separation bin through rotary centrifugation; the medium-particle separation sieve plate is used for guiding small-particle minerals into the small-particle separation bin; precise separation of particle minerals of different sizes is achieved, manual feeding is not needed, and it is ensured that nutritional ingredients in chicken feed are evenly distributed.

This application discloses a composite mineralization material, its preparation method, and its application, belonging to the technical field of mineralization materials for water purification. The preparation method includes the following steps: (1) Selecting strontium-containing ore, zinc-containing ore, metasilicic acid-containing ore, and carbonate-containing ore from natural ores, crushing the above ores respectively, and calcining them at 600-800℃ for 1-4 hours; (2) Soaking the calcined ores in pure water, then performing carbonation treatment, air-drying, and performing component analysis to screen and obtain the strontium-containing mineralization material, zinc-containing mineralization material, metasilicic acid-containing mineralization material, carbonate-containing mineralization material, and basic material; (3) Crushing the mineralization material and basic material again, mixing them according to the weight ratio to obtain the composite mineralization material. The composite mineralization material prepared by this method can solve the problem of excessive metal elements and organic matter in natural ores, and can achieve stable dissolution of minerals, reduce scaling, and improve the service life of water purification devices.

The utility model discloses a conversion device for converting purified water into mineralized water. The conversion device comprises a conversion tank, a water inlet pipe, a water outlet pipe and a control valve, the water inlet pipe is arranged at the top of the conversion tank, the water outlet pipe is arranged at the bottom of the conversion tank, the control valve is arranged on the water outlet pipe, a microporous mineral substance layer is arranged on the inner side wall of the conversion tank, mineral substance elements can be dissolved out when the microporous mineral substance layer meets water, and an annular net is arranged on the inner side wall of the microporous mineral substance layer. According to the device, common purified water can be converted into mineralized water which contains various mineral elements and is beneficial to human bodies, so that human health is facilitated, a convenient and rapid healthy water drinking mode is provided for people, the existing old-fashioned water purification machine can be replaced, and the device has a wide market prospect.

The invention discloses a single-layer neural network model-based inversion method for the mass fraction of low-content rare earth secondary minerals in mother rock of a weathering crust type rare earth ore deposit. The method comprises the following steps of: acquiring content data of rare earth elements in total rock; analyzing rare earth partition characteristics of minerals in the rock sample; constructing a single-layer neural network structure to perform inversion solution on the mineral mass fractions, setting each mineral mass fraction as a to-be-optimized weight, taking each mineral rare earth element content matrix as input, and taking the total rare earth element content of the mother rock as output; setting a main loss function and an auxiliary loss function of the neural network; iterative training is carried out, and mass fraction parameters of all minerals are optimized through error back propagation; after training convergence, model optimization parameters are the mass percentage content of each mineral. The method does not depend on a traditional image recognition method, rare earth secondary minerals with low content, small particle size and complex symbiosis can be accurately recognized, and the quantitative recognition capacity and geological interpretation performance are improved.

The utility model provides a filter equipment and mineralization equipment of mineral spring, filter equipment includes shell and sets up first filter core subassembly in the shell, is equipped with mineralization cavity, first adjusting cavity and second adjusting cavity in first filter core subassembly, is equipped with mineralization filter core in mineralization cavity, first adjusting cavity sets up in the upstream of mineralization cavity, second adjusting cavity sets up in the downstream of mineralization cavity, is equipped with first one -way conducting structure between first adjusting cavity and mineralization cavity, is equipped with second one -way conducting structure between second adjusting cavity and mineralization cavity, first one -way conducting structure and second one -way conducting structure are used for under the opening of one -way water pressure to open to the mineralization cavity and the corresponding adjusting cavity. The opening and closing of two one -way conducting structures depend on water flow pressure, and the operator can flexibly adjust the flow and residence time of water body in mineralization cavity, and the water body with high mineral content in mineralization cavity and the water body with low mineral content in first adjusting cavity and second adjusting cavity are mixed with each other, thereby obtaining the water body with moderate mineral content.

The invention relates to the technical field of preparation of drinking water capable of adjusting mineral content, and discloses a preparation method, device and equipment of drinking water capable of adjusting mineral content, the method comprises the following steps: obtaining target mineral content of a first waterway in real time, taking the target mineral content as a core input parameter, and combining with preset mineral content set by a user to obtain a target mineral content; the opening degree of the two independent valves is calculated and controlled in a linkage mode, so that the mineral content of the discharged water is the preset mineral content. The method has the beneficial effects that closed-loop accurate control on the mixing proportion is realized, upstream fluctuation caused by water quality change of raw water or performance degradation of a filter element can be automatically compensated, the mineral content of final effluent can stably reach a user preset value no matter how the water inlet condition changes, and meanwhile, the water quality of the water outlet can be effectively improved by independently controlling the two water paths respectively. The system can respond to the adjusting instruction more flexibly and quickly, and the intelligent level of water treatment equipment and the reliability of personalized drinking experience are remarkably improved.

The invention provides a high-strength lightweight water permeable brick as well as a preparation method and application thereof, and relates to the technical field of building materials. According to the method, the iron tailings are ground and calcined and activated in the presence of the limestone, silica, aluminate and other mineral substances in the iron tailings are combined with calcium to generate phase change and are converted into a mineral phase with high pozzolanic activity, and therefore the hydration reaction activity of the iron tailings is enhanced. The aluminum ash is ground and subjected to calcination denitrification modification in the presence of the quick lime, the aluminum ash and the quick lime react to generate calcium aluminate, dicalcium aluminate and an amorphous silicon-aluminum phase, high hydration reaction activity is achieved, and the early strength of the material can be improved; the modified aluminum ash is uniformly and stably foamed, so that the micro-pore structure of the prepared water permeable brick is relatively high in homogeneity; meanwhile, the Portland cement, the sulphoaluminate cement and the auxiliary additive are adopted, so that the water permeable brick has early strength, long-term strength and durability, and the comprehensive performance of mechanical property and water permeability is excellent.

The invention relates to the technical field of geothermal energy recycling, and discloses a coal mine underground geothermal energy recycling device which comprises a mounting bottom plate, a plurality of supporting legs fixedly connected to the bottom of the mounting bottom plate, a mounting frame fixedly connected to the top of the mounting bottom plate, and a double-shaft motor fixedly connected to the outer wall of the mounting frame. A heat exchange space is arranged in the recycling mechanism; the cleaning mechanism is mounted in the recycling mechanism; and the sediment removing mechanism is mounted at the bottom of the cleaning mechanism. According to the coal mine underground hot water recycling device, two driving gears and two driven gear rings are arranged, when the coal mine underground hot water recycling device is used for recycling coal mine underground hot water, a double-shaft motor is started to drive two rotating shafts to rotate, drive the two driving gears to rotate, drive the two driven gear rings to rotate and drive a circular shell to rotate, and therefore a brush is driven to move; and various mineral impurities attached to the outer wall of the water inlet cylinder are removed.

The utility model relates to a cooking device. The cooking equipment comprises an inner container and a humidifying assembly. The inner container is provided with a cooking cavity; the humidifying assembly comprises an atomizing nozzle, the atomizing nozzle is connected to the inner container, and the atomizing nozzle is arranged towards the interior of the cooking cavity and sprays water mist. According to the cooking equipment provided in the scheme, the atomizing nozzle connected to the inner container is arranged, the water mist is sprayed towards the interior of the cooking cavity through the atomizing nozzle, and the characteristic that the water mist can become water vapor more quickly compared with water flow is utilized, so that a better humidifying and baking effect is achieved; the characteristic that water mist is composed of fine liquid drops and has a large surface area is utilized, the characteristics that the water mist flows at a high speed and is large in surface tension and not prone to adhesion are combined, the water mist is rapidly evaporated into water vapor, the concentration of mineral substances in the water is reduced, the mineral substances dissolved in the water are prevented from being deposited and crystallized on the surface of the inner container, and the service life of the inner container is prolonged. Therefore, the problem that scale is easy to form during humidifying and baking is prevented.

The invention provides a filter element device and method for controlling mineral substance concentration through an electric field, and is characterized in that the filter element device comprises a shell, a filter assembly, electrode assemblies and a mineralization assembly, the mineralization assembly is arranged in the filter assembly, the electrode assemblies are arranged inside and outside the mineralization assembly, and the filter assembly comprises an upper end cover, a carbon rod and a lower end cover; the upper end cover is connected with the upper end face of the carbon rod and the mineralization assembly, and the lower end face of the carbon rod and the mineralization assembly are connected with the lower end cover; through the design that the directions of the water path and the double electric fields are parallel in the device, the release rate and diffusion efficiency of the mineral substances are further improved, the dissolution efficiency of the mineral substances is regulated and controlled through the voltage, and the effect of accurately regulating the concentration of the mineral substances under different water outlet flows is achieved; and real-time, automatic and flexible regulation and control of the mineral content based on user requirements are realized.

The invention discloses a method for judging interlayer oxidation intensity of lower chalkbroth sandstone based on three-phase clay minerals, and relates to the technical field of uranium mine geological exploration. Obtaining a three-phase clay mineral combination index calculation formula; the calculation formula of the three-phase clay mineral combination index represents the relationship between the mineral content of the chalkline sandstone under the three-phase clay minerals and the three-phase clay mineral combination index; obtaining the content of illite, illite-montmorillonite mixed layer minerals and chlorite in the lower chalkbroth system sandstone sample, and substituting the content of illite, illite-montmorillonite mixed layer minerals and chlorite into a three-phase clay mineral combination index calculation formula to obtain the three-phase clay mineral combination index of the lower chalkbroth system sandstone sample; and determining the oxidation intensity category corresponding to the three-phase clay mineral combination index of the lower chalkbroth system sandstone sample as an oxidation intensity classification result of the lower chalkbroth system sandstone sample. The method can be used for accurately judging the interlayer oxidation intensity of the chalkbroth sandstone.

Disclosed herein are methods and systems for determining downhole formation lithology after calculating the mineralogy of the formation based on acquired elemental data in a specific order. More specifically, the elemental data may be acquired using a downhole geological tool. The elemental data are then used to calculate the formation minerals, which, in combination, are then used to determine the formation lithology classifications.

The invention provides a material and a method for cleaning biogas residues produced by anaerobic digestion of waste oil reservoirs. The method comprises the following steps: (1) determining required anaerobic digestion methanogens and substrates according to the types of biogas residues produced by anaerobic digestion of the waste oil reservoir; (2) the oil reservoir is screened according to the requirements of the anaerobic digestion methanogens and the substrate for temperature, mineral substances, pH value and permeability, and a standard rock core is obtained; (3) adopting a physical simulation method, injecting anaerobic digestion methanogens and different organic matters into the standard rock core to clean in a manner of producing biogas residues through anaerobic digestion, and performing biogas residue cleaning test on the biogas residues generated by the different organic matters to obtain a cleaning scheme; and (4) cleaning the biogas residues produced by anaerobic digestion of the waste oil reservoir according to the cleaning scheme. A classification cleaning strategy is designed according to the blocking risk of organic matter biogas residues of different sources, the method for preparing the biogas through anaerobic digestion of the waste oil reservoir can be achieved, and the in-situ biogas preparation efficiency is improved.

The present invention provides a coal direct liquefaction system and a coal direct liquefaction method. The coal direct liquefaction system includes an oil-coal slurry configuration unit, a preheating mixing unit, a first coal direct liquefaction reactor, a second coal direct liquefaction reactor, a third coal direct liquefaction reactor, a first separation unit, a distillation tower, a hydrogenation unit, a second separation unit and a hydrogen supply unit. The present invention solves the technical difficulties of reactor coal powder deposition, mineral deposition, low utilization rate, poor operating stability and solid particle powder entrainment in the existing coal direct liquefaction technology, as well as the bottleneck problem that restricts the further expansion of the reactor, thereby realizing long-term and efficient operation of the coal direct liquefaction device, improving the utilization rate and single-series scale of the coal direct liquefaction reactor, improving energy utilization efficiency, and contributing to energy conservation and carbon reduction.

The present application belongs to the technical field of lignite treatment, and particularly relates to a method for improving lignite thermal conversion to produce high-value chemicals. In the present application, in the process of gasification, the catalytic active components in the carbide slag can have synergistic and catalytic effects with the minerals in the lignite. The treatment method provided by the present application can overcome the problems of low energy density, poor gasification efficiency, high tar yield and the like existing in the lignite gasification alone, effectively improves the carbon conversion rate per unit of coal, and greatly advances the reaction temperature zone. In the aspect of coal pyrolysis, the carbide slag can intervene in the pyrolysis reaction path, promote the cracking and conversion of macromolecular organic matter, and be helpful to the production of high-quality tar. The present application fully utilizes the catalysis of the carbide slag on the lignite for gasification or pyrolysis, effectively improves the carbon conversion rate per unit of coal, greatly advances the reaction temperature zone, and simultaneously can directionally regulate and control the production of high-value chemicals in the pyrolysis process, and produce high-quality tar.

To provide a method for producing a mineral extract rich in potassium, which is a mineral component extremely important to humans. Minerals are extracted from activated carbon, which is made from plant-derived raw materials, using an aqueous solvent.