78 results about "Sodium carbonate" patented technology

The invention discloses a production method of distiller's grain fermentation liquid fertilizer specially applied to roxburgh rose. The distiller's grain fermentation liquid fertilizer is prepared bythe step of evenly mixing 50 to 80 parts of distiller's grain fermentation extracting solution, 0.5 to 1 part of microelement, 5 to 10 parts of seaweed meal, 5 to 10 parts of natural active organism,2 to 5 parts of potassium bicarbonate, 2 to 5 parts of natural active organism and 2 to 5 parts of natural surface active agent. A preparation method of the distiller's grain fermentation extracting solution comprises the steps: evenly stirring 50 to 80 parts of distiller's grain, 50 to 150 parts of rice washing water, 1 to 2 parts of EM microflora fermentation liquid and 0.5 to 1 part of sugar, performing composting fermentation at the room temperature to obtain a distiller's grain fermentation material, stirring and extracting through a sodium carbonate water solution, filtering and performing evaporation and condensation on obtained filtrate until the density is 1.1 to 1.2 to obtain distiller's grain fermentation extracting solution. The distiller's grain fermentation liquid fertilizerdisclosed by the invention has a good use effect, meanwhile can effectively prevent pest and disease damage to the roxburgh rose and is high-efficiency environment-friendly liquid fertilizer.

The invention discloses a micro-fine particle gold ore normal-pressure alkaline leaching pretreatment method based on sodium percarbonate reinforcement, and belongs to the field of precious metal metallurgy. The method comprises the following steps: adding an oxidizing agent sodium percarbonate in batches under the condition that air is filled into ore pulp, starting to monitor the oxidation potential and the pH value of a reaction system after adding, judging that the reaction reaches the end point when the sudden drop amplitude of the oxidation potential of the ore pulp within one hour is greater than or equal to 30mV and the pH value is increased by 0.3-0.5 unit, and stopping aeration to finish pretreatment; in the segmented oxidation process, the oxidation potential is controlled within the range of + 520 mV to + 550 mV by dynamically adjusting the air charging rate. According to the basic technical scheme, the gold leaching rate reaches 86.01%, the gold leaching rate reaches up to 88.92% through the optimized technical scheme, and the utilization rate of gold ore resources is remarkably increased.

A method for preparing baking soda from baking soda desulfurized fly ash comprises the following preparation steps: step 1, dissolving baking soda desulfurized fly ash in water to obtain a mixed solution A; 2, filtering the mixed solution A through microporous filter paper or a filter membrane to obtain supernate B; step 3, mixing and stirring the supernate B and a precipitant C for 1-5 hours to obtain a mixed solution D; step 4, filtering the mixed solution D through microporous filter paper or a filter membrane to obtain a supernatant E; step 5, adding 1-8% of a regulator F into the supernate E, and uniformly stirring to obtain liquid G; step 6, continuously adding aeration H into the liquid G, and adjusting the pH to be alkaline to obtain a solution J; 7, the solution J is heated, evaporated and crystallized, solid crystals are obtained and fully ground, and regenerated baking soda can be obtained; the preparation method is simple, the recovery rate of baking soda is high, and large-scale batch production can be carried out.

The invention relates to the technical field of soda ash chemical industry and big data, in particular to a multi-source multi-scale sample database building method and system for soda ash production, and the method comprises the steps: unifying the format of data related to soda ash production into a CSV lightweight format; identifying and correcting parameter abnormal data; automatically subtracting the flow accumulated value into an hour difference value; checking and processing the flow accumulated value re-metering condition of the instrument; on the basis of the current integral coefficient, dividing the parameter values taking 24 hours or 8 hours as the updating frequency into parameter values taking 1 hour as the updating frequency; and extracting and matching parameter description information and numerical values, forming a two-dimensional standard data format, and constructing a multi-source multi-scale sample database. According to the method, a two-dimensional standard data format is formed, a multi-source and multi-scale sample database is constructed, and multi-source and multi-scale data association is realized; and real-time updating of the sodium carbonate production sample database is realized.

The invention discloses an oxygen-controlled inversely-proportional alkaline slag system 2.25% Cr-1% Mo-0. 25V steel welding rod for a hydrogenation reactor and a preparation method thereof, and belongs to the technical field of welding materials. The problem that a 2.25% Cr-1% Mo-V steel welding rod is poor in low-temperature toughness is solved. The welding rod is composed of a core wire and a coating on the surface of the core wire. The coating comprises CaF2, CaCO3, iron powder, quartz, 45 # ferrosilicon, electrolytic manganese, metal chromium powder, molybdenum powder, nickel powder, magnesium powder, titanium-boron alloy and sodium carbonate. A CaF2-CaO-SiO2 type inverse-proportion low-hydrogen alkaline slag system is adopted, so that non-metallic inclusions of deposited metal can be reduced, and weld joints are purified; and magnesium powder and MgO which has a deoxidizing effect and reacts with Mg and O are added into the coating, so that the alkalinity of the slag is improved, the inclusions in the slag are further reduced, the purity of the welding seam is improved, and the low-temperature impact toughness of deposited metal is improved. The welding rod is used for hydrogenation reactor welding.

The invention relates to a comprehensive purification treatment system for bypass vent ash, which is characterized in that bypass vent ash slurry is fed into a primary washing filter press for solid-liquid separation to obtain a primary filter cake and primary filtrate; the chloride ions in the filter cake are further reduced through two times of online washing in the first-stage washing filter press; feeding the primary filtrate into a reaction tank, inputting sodium carbonate and a heavy metal capturing agent into the reaction tank, inputting the mixed solution into a secondary washing filter press for solid-liquid separation to obtain a secondary filter cake and secondary filtrate, feeding the secondary filtrate into a neutralization tank for acid-base neutralization, and outputting a neutralization solution with the pH value meeting the requirement; heating the neutralization solution to an evaporation temperature, passing through a multi-effect evaporation and crystallization device which comprises the steps of firstly entering an evaporator for evaporation and concentration, and then entering a crystallization separator to obtain a concentrated solution containing crystalline salt; the concentrated solution containing the crystal salt is sent to a thickener for concentration, the crystal salt is separated out through a centrifugal machine, and the separated mother solution is returned to the evaporative crystallization device. According to the method, a closed operation process is adopted in the whole process, full-automatic control is achieved, the bypass exhaust ash pollutant removal route is clear, and automation, harmlessness, recycling and zero emission are achieved.

The invention relates to the field of glass products, and particularly discloses a light-weight glass bottle formula and a processing technology thereof. The formula of the light-weight glass bottle comprises 17.3%-19.1% of quartz sand, 4.6%-5.0% of sodium carbonate, 2.9%-3.2% of calcite, 5.0%-5.5% of potassium feldspar, 0.70%-0.85% of a clarifying agent, 0.23%-0.28% of chromium powder, 0.39%-0.47% of mirabilite, 0.009%-0.011% of carbon powder and 63.8%-70.5% of glass particles, wherein the glass particles are particles with the particle size of 5 mm to 20 mm, and the particles are prepared by smashing recycled colorless glass waste and removing impurities. The light-weight glass bottle formula provided by the invention has the advantage of synchronously ensuring the internal pressure strength and the mechanical impact strength of the glass bottle on the premise of realizing the light weight of the glass bottle.

The invention provides a photovoltaic energy storage power supply electrodialysis method and equipment for preparing sodium carbonate from mirabilite, and the method comprises the following steps: in daytime, a photovoltaic array generates power to directly provide direct current for an electrodialyzer to drive the mirabilite to produce the sodium carbonate; meanwhile, surplus electric power is stored in an energy storage system; if the photovoltaic power generation is insufficient, the energy storage system supplements power supply; at night, the photovoltaic array stops generating power, and the energy storage system discharges to provide direct current for the electrodialyzer to maintain production; the energy management system monitors the photovoltaic power generation power, the state of the energy storage system and the load of the production line in real time; according to the monitoring data, the energy management system intelligently dispatches the electric power flow direction; the central controller coordinates energy supply and production processes; and the product post-treatment system is used for concentrating, crystallizing and drying the product of the electrodialyzer.

The invention relates to the technical field of microcrystalline plates, in particular to an industrial microcrystalline plate manufactured from graphite tailings and a manufacturing method, the industrial microcrystalline plate is prepared from the following raw material components in percentage by mass: 62-70% of graphite tailings, 6-10% of quartz sand, 6.0-7.0% of sodium carbonate, 5-7% of limestone, 2-2.8% of dolomite, 3-4% of sodium fluosilicate, 1.5-2% of sodium nitrate and 0.1-0.2% of cerium oxide. By analyzing the components of the graphite tailings and adopting a specific formula combination, the graphite tailings are manufactured into the microcrystalline plate with excellent industrial wear resistance and corrosion resistance, so that the problems that the microcrystalline plate manufactured by the existing formula is poor in wear resistance and poor in corrosion resistance are solved. The wear-resistant lining is not applicable to gangue bins, coal storage bunkers, dumper rooms and coal preparation plant equipment in the coal industry.

The invention belongs to the technical field of wastewater treatment, and relates to a treatment method of ardealite leachate, which comprises the following steps: (1) discharging the ardealite leachate into a primary reaction tank, adding lime into the ardealite leachate in the primary reaction tank, stirring for reaction, and controlling the pH value to 9.8-10.0; (2) enabling effluent of the first-stage reaction tank to enter a second-stage reaction tank, adding a magnesium agent into the second-stage reaction tank, and stirring for reaction; (3) carrying out solid-liquid separation on effluent of the secondary reaction tank, and recycling obtained mud cakes as phosphorus and fluorine resources; (4) enabling the solid-liquid separation filtrate obtained in the step (3) to enter a third-stage reaction tank, adding sodium carbonate or NaOH into the third-stage reaction tank, stirring to remove hardness, and enabling effluent to enter a first-stage sedimentation tank to remove hardness and Fe; (5) enabling supernate of the primary sedimentation tank to enter a fourth-stage reaction tank, adding acid into the fourth-stage reaction tank, adjusting the pH value, and enabling effluent to enter a secondary sedimentation tank; and (6) enabling effluent of the secondary sedimentation tank to sequentially pass through a filtering device, an ultrafiltration device and a reverse osmosis device, and recycling reverse osmosis produced water as desalted water.

The invention discloses a method for preparing vanadium pentoxide from vanadium slag and vanadium pentoxide. The method comprises the following steps that the vanadium slag is subjected to roasting, clinker leaching and purification in sequence, and purified liquid is obtained; extracting the purified liquid by using a CO3 < 2-> and / or HCO3 <-> type extraction agent to obtain a vanadium-containing organic phase; the vanadium-containing organic phase is subjected to reverse extraction through a reverse extraction agent, and vanadium-containing reverse extraction liquid is obtained; adding ammonium salt into the vanadium-containing strip liquor, cooling and precipitating to obtain ammonium metavanadate; and calcining the ammonium metavanadate to obtain vanadium pentoxide. According to the scheme, the purification liquid is separated in an extraction mode to obtain the vanadium-containing organic phase, meanwhile, the vanadium-containing organic phase is subjected to reverse extraction of vanadium through the mixed solution of the sodium carbonate, the ammonium carbonate and the ammonia water, the stability of the vanadium-containing reverse extraction liquid is improved through introduction of the sodium carbonate, and the problem that when the vanadium is subjected to reverse extraction through the mixed solution of the ammonium salt and the ammonia water is solved. The problems of device wall scabbing, pipeline blockage and the like caused by crystallization and separation of ammonium metavanadate are solved.

The present application belongs to the field of oilfield drilling fluid, and discloses a multifunctional polymer drilling fluid mud cake modifier, a preparation method and application thereof, wherein the mud cake modifier comprises, by mass fraction, 5-95% of acicular wollastonite powder, 1-20% of sodium gluconate and 1-10% of instant sodium carbonate; the mud cake modifier is directly added into drilling fluid during use, and the addition amount is 0.5-1.5% by mass fraction. The mud cake modifier can improve the hardness, compactness and toughness of the mud cake, and improve the properties of the mud cake on the well wall; the mud cake modifier can form a thin, hard, tough and compact mud cake on the well wall, reduce the filtration loss of the drilling fluid, improve the rheological property of the drilling fluid, has no obvious influence on the density and viscosity of the drilling fluid, and has the dual functions of enhancing the affinity between the cement sheath and the mud cake and stabilizing the well wall.

The embodiment of the invention provides a preparation method of a heat storage material based on microbial corrosion and energy field regulation and a material. The method comprises the following steps: mixing distilled water, magnesium chloride, sodium carbonate and sodium hydroxide to prepare slurry; the method comprises the following steps: selecting silicophilic bacillus licheniformis as a silicate rock degradation strain, and inoculating the silicophilic bacillus licheniformis into a culture medium containing silicate rock chips for culturing; adding the obtained silicophilic bacillus licheniformis culture solution into a solution containing silicate rock debris to obtain activated silicate rock debris; mixing the activated silicate rock debris with a binder to prepare a green body, so as to obtain a pre-oxidized active material; putting the magnesium oxide active powder into a high-vacuum hot-pressing furnace, and synthesizing nano whiskers; calcining the obtained nano crystal whiskers to obtain core material nano crystal whiskers, mixing the core material nano crystal whiskers with a binder, and performing granulation, drying and compression molding to obtain a biscuit; putting the biscuit into a tubular furnace, and carrying out heating and heat preservation treatment; putting the cooled biscuit into a graphite mold, and sintering to obtain a biscuit; the biscuit is treated through an impregnation method, and the heat storage material is prepared.

The invention relates to the technical field of saline-alkali ore development, and discloses a method for processing alkali and ammonium chloride from saline-alkali ore in a short process. The method comprises the following steps: filtering saline-alkali brine extracted from saline-alkali ores, reacting with carbon dioxide to generate sodium bicarbonate, crystallizing and separating out the sodium bicarbonate to form baking soda slurry, carrying out solid-liquid preliminary separation on the baking soda slurry, washing a separated baking soda wet filter cake with water, and calcining; sodium carbonate generated by decomposition is cooled and sieved, and the sieved lower-layer product is a qualified sodium carbonate product; ammonium bicarbonate and sodium chloride are subjected to a double decomposition reaction, ammonium chloride and sodium bicarbonate crystals are generated, ammonium chloride mother liquor obtained after sodium bicarbonate is separated is pumped to a rotary precipitation machine, sodium chloride powder is added, ammonium chloride crystals are separated out, ammonium chloride slurry is formed, the separated ammonium chloride crystals are dried, screened and packaged, and qualified ammonium chloride products are produced. According to the method, all salt and alkali with economic value in the salt and alkali brine are processed and utilized, and benefit development of the high-salt-content trona ore is achieved.

The utility model belongs to the field of water treatment, and particularly relates to a wastewater hardness removal system for nanofiltration coupling induced crystallization. The wastewater hardness removal system comprises a nanofiltration unit, a gypsum reactor and an ettringite reactor. Wherein the nanofiltration unit is configured to add a scale inhibitor into the wastewater, so that calcium ions and sulfate ions are supersaturated, and divalent salt is intercepted, so that the divalent salt is enriched on a nanofiltration concentrated water side; the gypsum reactor is communicated with a nanofiltration concentrated water liquid outlet of the nanofiltration unit and is configured to add an agent for destroying a scale inhibitor, so that calcium ions and sulfate ions are combined to produce calcium sulfate crystals; the ettringite reactor is communicated with the liquid outlet of the gypsum reactor, and is configured to add alkali and aluminum salt, further remove hardness of the liquid discharged from the gypsum reactor, and produce ettringite. Therefore, the consumption of the chemical agent is low, the subsequently added sodium carbonate can be reduced, meanwhile, the increase of ion concentration caused by adding the chemical softening agent is reduced, and the treatment pressure of a subsequent water treatment system is reduced.

The invention provides a surfacing electrode for repairing a hot forging die and a preparation method thereof, and relates to the technical field of welding materials. The surfacing welding rod for repairing the hot forging die comprises a welding core and a coating wrapping the welding core, and the coating comprises, by mass, 20%-24% of marble, 15%-17% of fluorite, 4%-6% of silicon iron, 2%-3% of electrolytic manganese metal, 2%-3% of titanium dioxide, 13%-16% of chromium metal, 0.5%-1% of sodium carbonate, 4%-6% of molybdenum powder and 26%-28% of cobalt powder. When the surfacing electrode is used for repairing a hot forging die, surfacing metal has good wear resistance, impact resistance and fatigue resistance, and the service life of the die can be effectively prolonged.

This invention relates to the field of copper smelting technology, and in particular to a desulfurization process for copper melt smelting, comprising the following steps: melting copper or copper alloy raw materials to obtain copper melt; removing the charcoal covering layer on the surface of the copper melt, and adding a desulfurization slagging agent composed of calcium oxide, sodium carbonate, magnesia, and refractory powder; heating the copper melt to 1250–1350°C and holding it at that temperature for 30–60 minutes; after the holding period, removing slag and taking samples for testing; if the sample meets the standards, adding charcoal to complete the desulfurization; otherwise, adding more desulfurization slagging agent. The ratio of the desulfurization slagging agent is matched with the reaction characteristics of sulfur in the copper melt, allowing it to fully react chemically with sulfur to generate sulfide slag that is easily separated from the copper melt, thus improving the thoroughness of desulfurization from the source; simultaneously, timed stirring is performed during the constant-temperature slagging process to promote full contact between the desulfurization slagging material and the copper melt, which helps to improve the uniformity of desulfurization and ensures a stable and reliable desulfurization effect.

The invention provides a method for producing copper hydroxide by using electroplating sludge. The invention relates to a method for producing copper hydroxide by using electroplating sludge, which comprises the following steps: (1) pulpifying: adding slag washing water into a pulpifying tank, slowly adding the electroplating sludge into the pulpifying tank, and starting stirring at the liquid-solid ratio of (2.5-3): 1 and the temperature of 40-70 DEG C for 5-8 hours; according to the method, the filtrate obtained in the step (2) is pumped into the primary iron removal kettle through the pump, meanwhile, hydrogen peroxide and sodium carbonate are added into the iron removal kettle to adjust the PH value, oxidation neutralization and chemical precipitation can be carried out, and impurity metals such as iron and chromium contained in the filtrate are removed; meanwhile, filter residues generated by leaching and filter residues generated by primary iron removal enter a leaching residue washing kettle and an iron residue washing kettle respectively, residue washing water and sulfuric acid are pumped into the washing kettles, leaching residues and iron residues are subjected to acid pickling, and iron ions carried in the solution can be more sufficiently removed.

This invention discloses a method for deep purification of medium-to-high grade magnetite concentrate to prepare ultrapure iron concentrate, relating to the field of iron ore beneficiation technology in mineral processing engineering. The method includes the following steps: medium-to-high grade magnetite concentrate is sequentially mixed, reduced in size, and impurity removed to obtain beneficiation feed; the beneficiation feed is subjected to a first-stage closed-circuit grinding and a first-stage weak magnetic roughing to remove low-grade tailings, resulting in a first-stage magnetic rough concentrate; the first-stage magnetic rough concentrate is subjected to a second-stage closed-circuit tower grinding, followed by a gradient weak magnetic separation operation consisting of weak magnetic roughing and weak magnetic cleaning, removing magnetic tailings to obtain a second-stage magnetic clean concentrate; the second-stage magnetic clean concentrate is demagnetized to obtain a demagnetized concentrate; the demagnetized concentrate is fed into a two-stage reverse flotation process (roughing and cleaning), where sodium carbonate is used as a modifier and modified dodecylamine MKC-4 is used as a collector for reverse flotation desilication under ambient temperature conditions to obtain the final ultrapure iron concentrate. This invention effectively achieves deep purification of medium-to-high grade magnetite concentrate.

The utility model relates to the technical field of catalyst preparation, and discloses a system for preparing a catalyst by using underground coal gasification byproducts. The catalyst system comprises an injection well, a product well, a conveying pipeline, a separation device, an ammonia absorption tower and a carbonization tower, the injection well is communicated with the product well, the product well conveys generated synthesis gas into the separation device through the conveying pipeline, the separation device is used for extracting ammonia gas and carbon dioxide, and the ammonia absorption tower is used for absorbing ammonia gas. The separation device is respectively connected with the ammonia absorption tower and the carbonization tower through conveying pipelines, the ammonia absorption tower is connected with the carbonization tower through a conveying pipeline, the carbonization tower is connected with a filter through a conveying pipeline, and two discharge holes are formed in the filter; the catalyst system is used for producing sodium carbonate by taking ammonia gas obtained by recovering phenol ammonia and carbon dioxide extracted from synthesis gas as raw materials, so that resources are recycled, and the target requirements of environmental protection and carbon emission reduction are met.

The invention provides a strip-shaped bentonite cat litter which comprises the following components in percentage by weight: 86-95.5% of bentonite; 1%-3% of polyaluminum chloride; 0.5%-1% of carboxymethyl cellulose; 0.3%-1% of calcium carbonate; 0.5%-2% of baking soda; 1%-5% of guar gum; 0.5%-0.8% of sodium carbonate; 0.3% to 0.5% of nano microspheres; 0.1%-0.2% of microcrystalline cellulose; and 0.3%-0.5% of a quick drying agent. The invention further provides a production method of the strip-shaped bentonite cat litter.

Proposed is a method for manufacturing a catalyst for capture and conversion of carbon dioxide capable of removing carbon dioxide and converting carbon dioxide into other useful materials at the same time by capturing and converting carbon dioxide in flue gas generated during fossil fuel combustion into a carbon resource and a catalyst for capture and conversion of carbon dioxide manufactured by the method of the same. The catalyst for capture and conversion of carbon dioxide according to the present disclosure can reduce carbon dioxide by capturing carbon dioxide in flue gas generated during fossil fuel combustion. It is possible to convert the captured carbon dioxide into other useful materials by converting the collected carbon dioxide into sodium carbonate or sodium hydrogen carbonate as carbon resources.

The utility model relates to the technical field of water treatment, and discloses a treatment system for preparing industrial water, which comprises a water taking device, a reaction tank, a sedimentation tank, a filtering device and a clean water tank which are sequentially communicated, an inlet of the water taking device is communicated with river water, the reaction tank and the sedimentation tank are respectively provided with a sludge discharge outlet, and the treatment system further comprises a disinfection device, and a disinfectant outlet of the disinfection device is respectively connected to an inlet of the sedimentation tank and an inlet of the filtering device. According to the treatment system for preparing the industrial water, provided by the utility model, river water is subjected to flocculation, precipitation, disinfection, filtration and the like to realize deep purification, most suspended solids, bacteria and viruses in the water are eliminated, and the industrial water with low microorganism content, turbidity lower than 10mg / L and pH of 6-9 is obtained; the problem that in the prior art, a water treatment system for preparing industrial water from river water lacks a disinfection process, so that the obtained industrial water cannot meet the sodium carbonate production requirement is solved.

The invention discloses a preparation method of mulberry twig biomass fuel, and belongs to the field of resource utilization of mulberry twig wastes. The method comprises the following steps: S1, airing the waste mulberry twigs, crushing the mulberry twigs into powder particles and collecting dust; s2, soaking the mushroom stick waste residues with sodium carbonate, filtering to obtain MPR alkaline hydrolysate and MPR filter residues, adding cellulose into the MPR filter residues for enzymolysis to obtain MPR enzymolysis residues and first MPR enzymolysis liquid, and condensing enzymolysis steam to obtain second MPR enzymolysis liquid; s3, drying the mulberry twig powder with hot air, spraying a second MPR enzymatic hydrolysate diluent to adjust the moisture content to 12-14%, and collecting tail gas condensate water; s4, adding MPR enzymolysis residues, river mud powder and mulberry twig fermentation liquor (dust, MPR alkaline hydrolysate, tail gas condensate water and the like) to prepare a mixed material; s5, carrying out gradient controlled pressing to prepare particles with the size of 6-8 mm; and S6, carbonizing MPR enzymolysis residues to obtain humic acid, and spraying and drying coated particles prepared from the humic acid and kaolin. The problems that pure mulberry twigs are low in forming rate, loose in particle and insufficient in heat value are solved, emission of ash content, sulfur dioxide and carbon dioxide is reduced, the method is suitable for industrial heat supply and civil heating, and high value of the mulberry twigs is achieved.

The utility model discloses a soda ash production system with balanced alkali liquor. The alkali liquor balanced sodium carbonate production system comprises a hot alkali liquor tank, a hot alkali liquor pump, a circulating washing tank, a circulating washing liquor pump, an alkali dissolving tank, a sodium carbonate liquor pump and a brine causticizing device, feed liquid in the circulating washing tank is conveyed to the alkali dissolving tank through the circulating washing liquid pump, feed liquid in the alkali dissolving tank is conveyed to the brine causticizing device through the sodium carbonate liquid pump, and feed liquid in the hot alkali liquid pump is conveyed to the circulating washing tank through the hot alkali liquid pump. According to the soda ash production system with the balanced alkali liquor, the problems of caking blockage, alkali liquor expansion and discharge are solved, water can be effectively saved, and the soda ash production cost is reduced.

The present application relates to the technical field of organic photoresist wastewater treatment, and particularly relates to an on-line electrochemical degradation and alkalinity maintaining device for organic photoresist components, which comprises a pretreatment unit, an on-line electrochemical degradation unit, a dynamic alkalinity maintaining unit, a product separation unit and a PLC control system, and each unit is sequentially connected through a corrosion-resistant pipeline; the pretreatment unit is used for removing solid particles, suspended impurities, macromolecular organic matters and part of additives in the wastewater; the on-line electrochemical degradation unit adopts a bipolar electrolytic cell structure, and is internally provided with a titanium-based ruthenium-iridium coating anode and a graphite cathode, and is used for electrochemical oxidation degradation of the organic photoresist components; the dynamic alkalinity maintaining unit adopts a sodium hydroxide-sodium carbonate compound lye, and combines on-line pH monitoring and PLC linkage adjustment to stably maintain the pH value of the wastewater at 8.5-10.5; and the product separation unit is used for separating degradation products, precipitates and trace impurities.

The present application belongs to the technical field of zeolite molecular sieve, and particularly relates to an AFX type zeolite molecular sieve, a preparation method and application thereof. An initial gel obtained by mixing an aluminum source, a silicon source, an inorganic base (sodium carbonate and / or sodium hydroxide), seeds and water is subjected to a hydrothermal crystallization reaction, and a crystallization product obtained is subjected to solid-liquid separation, washing and solid drying in sequence to obtain the AFX type zeolite molecular sieve. The AFX type zeolite molecular sieve with no organic template agent and low silicon-aluminum ratio is synthesized by using a traditional hydrothermal synthesis method, using seeds and an inorganic cation double-oriented design, and has great potential application value in the future catalysis field of diesel vehicles and non-road mobile machinery and the industrial adsorption separation industry due to the properties of no organic template agent and low silicon-aluminum ratio, and the synthesis does not use an organic template agent, reduces industrial production cost, and also reduces environmental pollution, and has great economic advantages in industrial production.

The invention discloses European tea colored glass and a coating method thereof, the transmittance T value of 5 mm of the European tea colored glass is 52-53%; the L value is 77-78, and the a value is 4.6-4.8; the value of b is 9.6 to 9.7; the main raw materials comprise 57-65 parts of silica sand, 15-21 parts of sodium carbonate, 13-18 parts of dolomite, 3.0-4.5 parts of limestone, 0.3-0.9 part of mirabilite and 0.3-1 part of an additive; and the coloring agent comprises the following components in percentage by weight: 0.3 to 0.7 percent of Fe2O3, 0 to 0.3 percent of CuO, 0.01 to 0.5 percent of MnO, 0 to 0.2 percent of Co3O4 and 0 to 0.8 percent of Se. According to the invention, a body coloring technology and a functional coating technology are integrated, and a product with a wide market prospect is successfully developed.

The invention provides a carbon sink type tailing soil conditioner as well as a preparation method and a soil treatment method thereof. The invention relates to a carbon sink type tailing soil conditioner, which comprises porous biochar loaded with an alkali-producing microbial agent and a multifunctional composite microbial agent with heavy metal toxicity reduction and efficient carbon sequestration effects; the alcaligenes microbial agent comprises alcaligenes; the multifunctional complex microbial inoculant comprises heavy metal passivating bacteria, carbonic anhydrase secreting bacteria and mycorrhizal fungi; the mycorrhizal fungi comprise at least one of arbuscular mycorrhizal fungi and ectotrophic mycorrhizal fungi; the porous biochar is prepared from the following raw materials: sodium carbonate and organic waste powder. According to the method, the rapid weathering of the tailings, the reconstruction of the soil structure and the efficient storage of CO2 are realized, the soil period is shortened from more than 5 years to 8-12 months, the carbon sink strength is improved to 2.1-3.4 t CO2 / ha.a, and an innovative solution is provided for the goals of ecological restoration and carbon neutralization of mines.

The invention belongs to the technical field of wastewater treatment, particularly relates to a wastewater treatment system and method, and aims to solve the problem that an existing wastewater treatment system cannot accurately control the feeding amount of hydrochloric acid for neutralizing the alkalinity of wastewater, and provides the following scheme: the wastewater treatment method comprises the following steps: feeding incoming water subjected to biochemical treatment into a first-stage high-density system, and feeding the wastewater into a second-stage high-density system; magnesium chloride, quicklime and sodium carbonate are added into the first-stage high-density system; according to the wastewater treatment system and method disclosed by the invention, a small amount of hydrochloric acid can be fed for multiple times by the device according to the amount and alkaline value of alkaline wastewater in the neutralization tank, so that the neutralization reaction speed in the neutralization tank is accurately controlled, and the wastewater can perfectly reach neutral when the pH value is adjusted; the condition that the wastewater is slightly acidic due to excessive addition of hydrochloric acid or the wastewater is still alkaline due to too little addition of hydrochloric acid is avoided, the overall process of wastewater treatment is ensured, and the wastewater treatment efficiency is improved.