156 results about "Acid substances" patented technology

The invention relates to the technical field of purification of organic chemicals, in particular to an aroma purification method of leaf alcohol. Comprising the following steps: preparing a methanesulfonic acid magnetic catalyst; esterification of leaf alcohol; and alcoholysis and fractionation of the esterification solution. According to the method, acetic acid is used for esterification of leaf alcohol, then clear water and a sodium carbonate solution are used for washing, the clear water can effectively remove some water-soluble impurities and acidic byproducts, and the sodium carbonate solution not only can neutralize residual acidic substances, but also can promote siloxane impurities in initial leaf alcohol to be hydrolyzed and then taken away by a water phase, so that the content of the siloxane impurities in the leaf alcohol is reduced; in the subsequent process of producing leaf alcohol through alcoholysis of the organic phase I, pure water and ethanol, silyl ether impurities are hydrolyzed in a high-temperature and strong-alkali environment, products are dissolved in waste liquid to be removed, olefine aldehyde impurities with the boiling point lower than that of leaf alcohol are removed through azeotropic fractionation with ethanol, in conclusion, the impurities in the finished product leaf alcohol can be effectively reduced, and the yield of the finished product leaf alcohol is increased. And the prepared finished product leaf alcohol is high in purity and pure in fragrance.

The utility model relates to the technical field of water treatment equipment, in particular to a water path system for a mineral spring water purifier and the mineral spring water purifier. The waterway system for the mineral spring water purifier comprises an alkaline filter material, an acidic filter material and a mineralized waterway, wherein the alkaline filter material and the acidic filter material are sequentially arranged in the mineralized water path, or the acidic filter material and the alkaline filter material are sequentially arranged in the mineralized water path. Compared with the prior art, the alkaline filter material is matched with the acidic filter material, so that the release of mineral substances in the alkaline filter material can be promoted by using acidic substances released by the acidic filter material, or the release of the mineral substances in the acidic filter material can be promoted by using alkaline substances released by the alkaline filter material; therefore, the problem that the content of mineral substances in the water body provided by the mineral spring water purifier does not reach the standard can be solved.

The present invention discloses a method for preparing enol by selective hydrogenation of alkynol. By adding an acidic substance to adjust the pH value of the reaction system and adding crown ether to inhibit the two main side reactions of self-coupling and over-hydrogenation of terminal alkyne, the purpose of improving low selectivity is achieved. The product has a pure odor and mild reaction conditions.

The invention provides a tropical fruit preservative film which is of a double-layer structure, the outer layer is a moisture-resistant antibacterial layer, and the inner layer is a water-absorbing antifogging antibacterial layer; and the water-absorbing anti-fog antibacterial layer also comprises a pH sensitive microcapsule. The outer layer is prepared from polyhydroxyalkanoate, a humidity sensitive type block copolymer and CuO / SiO2 antibacterial nano-enzyme; and the water-absorbing anti-fog antibacterial layer comprises polyhydroxyalkanoate, a humidity-sensitive block copolymer, hygroscopic zeolite, thymol, gallic acid and a pH-sensitive microcapsule. The preservative film has a certain hydrophobic effect, the humidity of a packaging microenvironment can be adjusted, breeding of putrefying bacteria can be inhibited, meanwhile, thymol and gallic acid form a slow-release antibacterial system, and tropical fruits keep good quality in the storage and transportation links through cooperation of all the components; besides, the pH sensitive microcapsules can respond to acidic substances generated by corruption in real time, help merchants to quickly sort deteriorated fruits, and provide a visual judgment basis for consumers at the same time.

The invention discloses a cushion packaging product. The cushion packaging product is obtained by cutting or assembling plant fiber foaming materials. The preparation method of the plant fiber foaming material comprises the following steps: S1, defibering plant fibers to obtain defibered plant fibers; s2, uniformly mixing the defibered plant fibers with a plant fiber modifier to obtain modified plant fibers; the plant fiber modifier comprises calcium chloride, long-chain aliphatic anhydride and an acidic substance; and S3, uniformly mixing the modified plant fibers with an adhesive and a nucleating agent, performing extrusion molding, and feeding the extruded slurry into foaming equipment for foaming to obtain the plant fiber foaming material. The invention discloses a cushion packaging product which is a plant fiber foaming material, and the plant fiber foaming material can be continuously produced under the condition of no mold, and is high in production efficiency and low in production cost. The cushion packaging product is low in density and high in compression strength, can replace EPE, and has higher compression strength compared with the EPE under the same density.

Systems and methods for capturing and releasing carbon dioxide at least in part via the electrochemical production of acids and / or bases are generally described. An aqueous input stream that includes a dissolved salt such as sodium chloride may be input into an electrolysis assembly to produce acidic and / or basic species. The basic species may promote capture of carbon dioxide (e.g., via direct air capture or from a point source). The acidic species may promote subsequent release of the carbon dioxide to form a carbon dioxide-rich stream. In some instances, at least some streams are concentrated and / or recycled, thereby improving overall system performance and / or efficiency.

The invention discloses a composite adsorption flocculant for waste oil regeneration and a preparation method thereof, and belongs to the technical field of waste oil regeneration. The composite adsorption flocculant is prepared from the following components: 30 to 60 parts of functional modified core-shell microspheres, 6 to 18 parts of polyaluminum chloride, 0.5 to 2 parts of cationic polyacrylamide and 5 to 10 parts of sodium carbonate. According to the functionalized modified core-shell microsphere, the core is the hydroxyl-functionalized nano silicon dioxide core, and the surface of the core has a large number of hydroxyl groups derived from glycerol, which are extremely strong hydrogen bond sites; polar pollutants such as small molecular organic acids, sulfur and phosphoric acid substances in the waste oil can penetrate through the nano pore channels of the shell to reach the inner core; hydroxyl can generate multi-point and strong hydrogen bond locking with carboxyl, sulfo groups and the like of acidic substances, so that the total acid value of the waste oil is reduced, and an inner core can also react with polar functional groups containing oxygen and sulfur, so that further degradation of the waste oil is inhibited.

The application discloses an amino acid hydrolysate acid removal process using indirect MVR evaporation, and particularly relates to the technical field of amino acid hydrolysate acid removal processes, and comprises the following steps: S1, amino acid hydrolysate conveying, S2, hydrolysate evaporation under reduced pressure, S3, acid substance gas-liquid separation, S4, secondary steam conveying, and S5, liquid storage. The acid substance in the amino acid hydrolysate is evaporated and acid removal treated by adopting the MVR evaporation technology, so that the hydrolysate can form concentrated liquid and acid substance after being separated under reduced pressure, the generated acid substance is separated by a gas-liquid separator, and acid liquid and secondary steam are generated, the secondary steam can provide a secondary steam source for an evaporator after being compressed by a compressor, thereby providing a large amount of steam source for the evaporator, reducing the emission of acid gas, improving the resource utilization rate, achieving the protection of the environment, and avoiding the harm of acid gas to the human body.

The invention relates to a heat preservation container and a manufacturing method thereof.The heat preservation container comprises a non-metal container body, a metal sealing component and a first connecting solder layer, the non-metal container body comprises a shell and an inner container, the top ends of the shell and the inner container are fixedly connected in a sealed mode, and a vacuumizing opening is formed in the end face of the bottom end of the shell; the metal sealing component is of a hollow structure with one end open and the other end closed in the circumferential direction, and the open end of the metal sealing component is an annular embedding end which is matched with the vacuumizing opening in shape and can be inserted into the vacuumizing opening in a clearance fit mode. The first connecting solder layer is arranged between the outer wall of the annular embedded end and the inner wall of the vacuumizing opening, and the non-metal device body and the metal sealing component are connected through the first connecting solder layer. According to the heat preservation container, the shell and the inner container are integrally formed and manufactured through the non-metal materials which are not prone to being corroded by acidic substances, the problems that the metal materials are prone to being corroded by the acidic substances and the surface layers are prone to being scratched in the cleaning process are solved, and the heat preservation container can store the acidic substances while improving the heat preservation and cold preservation effects.

The application discloses an electrolyte, a preparation method thereof and a lithium ion battery, and belongs to the technical field of batteries.The electrolyte comprises a lithium salt, a first additive, a second additive and a solvent; the first additive is a compound carrying an isocyanate substituent and a nitrile substituent in a molecular structure; and the second additive is a sulfur-containing heterocyclic compound.The first additive of the electrolyte can remove water and HF in the electrolyte, prevents HF from attacking CEI and causing transition metal dissolution of a ternary positive electrode material and destruction of a material structure; the nitrile substituent has extremely strong complexing force with transition metals, inhibits electrolyte oxidative decomposition and positive electrode transition metal element dissolution; the second additive has the advantages of impedance reduction and gas production inhibition but is prone to generating acidic substances; the first additive has water and acid removal functions and can inhibit the second additive from generating acidic substances; and the synergistic effect of the two additives can improve the compatibility of the electrolyte and the ternary positive electrode material and improve the electrochemical performance of the lithium ion battery.

The application discloses a production process of an ultra-low pressure reverse osmosis membrane, which comprises the following steps: preparing a support layer casting solution; uniformly coating the support layer casting solution on a polyester non-woven fabric, and then performing air drying and water washing; preparing a water phase casting solution and an oil phase casting solution, and adding an acidic substance in the water phase casting solution and the oil phase casting solution; the acidic substance is insoluble in water and only reacts with alkali, the reaction product is soluble in water, and the particle diameter of the acidic substance is 1-5 um; coating the water phase casting solution and the oil phase casting solution on the non-woven fabric with the support layer respectively, and then sequentially performing drying, acid washing, water washing, alkali washing, water washing and drying to obtain the ultra-low pressure reverse osmosis membrane. The application can provide a reverse osmosis membrane which has a stable structure, a relatively high desalination rate and a relatively large water flux.

The invention discloses a model and a method for predicting sensory acidity by using total acidity and effective acidity, and the method for constructing the prediction model for predicting sensory acidity by using total acidity and effective acidity comprises the following steps: adopting a specified acidic substance as a reference substance; the aqueous solutions of the acidic substances with different concentrations are represented by numerical values of different sensory acidity scales through professional evaluation personnel, and the sensory acidity scales are obtained; the method comprises the following steps: respectively preparing aqueous solutions of different addition amounts of buffer salt, hydrophilic colloid and protein under different concentrations of acidic substances, evaluating the sensory acidity of the aqueous solutions by professional evaluation personnel, and simultaneously detecting the pH value and titration acidity of the aqueous solutions; and performing linear regression analysis by taking the pH value and the titration acidity as independent variables and the sensory acidity as a dependent variable according to the data of the three variables of the sensory acidity, the pH value and the titration acidity in the database to obtain a prediction model. The sensory acidity of the product can be accurately predicted without tasting by sensory personnel.

The utility model relates to the technical field of molybdenum disulfide washing devices, in particular to a molybdenum disulfide washing device which comprises a liquid outlet pipe, a liquid outlet is formed in the lower portion of the outer wall of the liquid outlet pipe in a penetrating mode, an ultrasonic vibration plate is fixedly connected to the lower end of the inner wall of a cabinet body, and U-shaped fixing blocks are fixedly connected to the inner walls of the left end and the right end of the cabinet body. A T-shaped block is movably arranged at the groove of the U-shaped fixing block, the lower end of the T-shaped block is fixedly connected with an adsorption plate, and third groove bodies are formed in the upper end and the lower end of the adsorption plate in a penetrating mode. When a water source is injected into molybdenum disulfide through the liquid outlet in the liquid outlet pipe, the ultrasonic vibration plate is started, the molybdenum disulfide in the cabinet body is subjected to ultrasonic vibration work, ultrasonic vibration can strengthen solid-liquid collision, acidic substances and impurities on the surface of the molybdenum disulfide are promoted to fall off from the surfaces of particles and are dispersed into a water solution, and therefore the molybdenum disulfide is purified. Then the aqueous solution penetrates through the filter plate and flows into the upper end of the filter plate, and then impurities in the solution are adsorbed by using an adsorption plate, so that the deacidification work of molybdenum disulfide is realized.

The application discloses an electro-catalytic oxidation system and method and an ecological joint treatment method for in-situ remediation of water body sediments, which utilizes an intelligent pulse power controller to perform intermittent pulse electro-catalytic oxidation on the bottom mud at the water bottom, generates hydroxyl radicals through in-situ catalysis of an anode to degrade organic pollutants of the bottom mud, generates micro-bubbles in the interstices of the bottom mud through the electrolysis of water to improve the oxidation-reduction potential, and further reserves time for the soluble pollutants in the interstitial water of the bottom mud to sufficiently diffuse to the surface of the electrode, so as to avoid energy waste caused by concentration polarization. Through reverse power supply, the polarity of the anode and the cathode is instantaneously reversed, trace amounts of acidic substances and gas generated through in-situ electrolysis are utilized to strip off the calcium and magnesium scale attached to the surface of the cathode, and manual cleaning and maintenance under water are realized. In combination with the planting of submerged plants on the treated bottom mud, ecological joint treatment is realized, the root system of the submerged plants is utilized to perform long-term ecological fixation and water purification on the treated sediments.

To provide a kit for obtaining a foaming topical skin preparation that improves skin condition and has a pleasant feel. [Solution] The present invention provides a kit for obtaining a foaming topical skin preparation, which is obtained by mixing an acidic substance, a carbon dioxide generating substance that reacts with the acidic substance to generate carbon dioxide, a thickener, and water, and is characterized by the incorporation of two or more thickeners in combination.

The invention discloses an anti-oxidation acid-absorbing EVA photovoltaic film and a preparation method thereof.The anti-oxidation acid-absorbing EVA photovoltaic film comprises an EVA photovoltaic film body, the EVA photovoltaic film body comprises an anti-oxidation film, an acid-absorbing film, a photovoltaic base film and a color-stabilizing film, and the anti-oxidation film comprises 30-45 parts of nano zinc oxide dispersion liquid, 20-35 parts of nano silicon dioxide and 20-40 parts of an SF-based film; the acid-absorbing film comprises 25-35 parts of a polypropylene film, 25-35 parts of an alkaline metal compound, 25-35 parts of a modified acid-absorbing agent and 10-30 parts of nano magnesium oxide, and the photovoltaic base film comprises 50-70 parts of an ethylene-vinyl acetate copolymer, 20-35 parts of a modified polyurethane elastomer, 10-15 parts of a silane coupling agent, 0-5 parts of a peroxide cross-linking agent and 0-5 parts of a water vapor blocking agent. By arranging the acid absorbing film, the polypropylene film, the alkaline metal compound and the modified acid absorbing agent, acidic substances released after degradation after aging are subjected to a neutralization reaction, and the situation that the service life of equipment at the installation position is affected due to acidic corrosion is avoided.

The invention discloses a quantitative calculation method for the comprehensive utilization rate of acid in a crude fatty acid preparation process, and belongs to the technical field of quantitative calculation of the comprehensive utilization rate of acid, and the quantitative calculation method comprises the following steps: measuring the prepared crude fatty acid and the acid value of a raw material nigre used for preparation, and calculating the amount of substance of acid consumed by acidification reaction after corresponding data is obtained; measuring the acidity of the strong acid in the total process effluent, and calculating the amount of residual acid substance in the total process effluent after corresponding data is obtained; calculating the amount of substance of the acid for neutralizing the excessive monobasic base in the saponification reaction according to the amount of substance of the added acid and the calculated data; and finally calculating the acid comprehensive utilization rate. According to the method, the acid utilization path is analyzed through the technological process, relevant parameters are measured, the quantitative method is constructed, quantitative calculation of the comprehensive utilization rate of the acid is achieved, the method is simple, convenient and easy to operate and achieve, raw material consumption and salinity and acidity in waste water can be remarkably reduced, and the method has great significance in improving the product yield and reducing environmental pollution.

The present application relates to a kind of high alkalinity wastewater pre-acidification treatment method and its processing device system, the treatment method includes: the nutrient substance is added to the wastewater to be treated and is adjusted to obtain adjusted water;Part of the adjusted water is returned to adjust and handle, another part is added to the nutrient substance and is pre-acidification treatment, obtain pre-acidification water;Pre-acidification water is treated by anaerobic purification, obtain anaerobic purification water;Anaerobic purification water is treated by aeration and sedimentation in turn, obtain treated water.The treatment method and its processing device system provided by the present application can regulate the metabolic activity of microorganism, reduce the inhibitory effect of wastewater alkalinity and metal ions on anaerobic microorganism, improve the anaerobic removal rate of anaerobic purification treatment, reduce the adding cost of acidic substance and nutrient substance.

This application relates to the field of food processing technology, specifically disclosing a freeze-resistant lava-filled popping bead, its preparation method, and its application. The freeze-resistant lava-filled popping bead comprises an inner core liquid, a popping bead wall material liquid, a curing liquid, and a storage liquid. The inner core liquid comprises the following raw materials in parts by weight: 80-120 parts white sugar, 3-6 parts calcium salt, 30-60 parts edible alcohol, and 41-68 parts water. The preparation method is as follows: white sugar, calcium salt, edible alcohol, and water are mixed until dissolved to obtain the inner core liquid; alginate, glycerin, pectin, and acidic substances are mixed with water until dissolved to obtain the popping bead wall material liquid; calcium salt, chitosan, and water are mixed evenly to obtain the curing liquid; fructose syrup, edible alcohol, and water are mixed evenly to obtain the storage liquid; the inner core liquid is added dropwise to the popping bead wall material liquid for a coating reaction; excess adhesive is filtered out and washed away; the bead is then placed in the curing liquid and the storage liquid in sequence; after packaging and high-temperature sterilization, the finished product is obtained. It has the advantage of bursting and lava-filled core when eaten frozen.

The application discloses a combustion-supporting and corrosion-preventing type colloidal magnesium-based heavy oil additive and a preparation method thereof. The heavy oil additive is prepared from the following components in parts by weight: magnesium oxide 50-80 parts, bentonite 10-15 parts, lime powder 5-10 parts, nano silicon dioxide 10-15 parts, basic copper chloride 5-10 parts, diaspore powder 10-15 parts, sodium dodecyl benzene sulfonate 2-8 parts, hydrocarbon solvent 2-8 parts, combustion-supporting dispersant 2-8 parts, and water 80-100 parts. The additive can inhibit the combustion of sulfur in the heavy oil to generate sulfur oxides, low-temperature sulfur corrosion and the synergistic corrosion of HCl. In the low-temperature section, the basic components such as lime powder react with HCl to generate salt compounds, neutralize the acidic substances in the flue gas, and significantly increase the pH value to above 8, thereby preventing the low-temperature dew point corrosion of the tail heating surface.

The present invention relates to a method for determining the partition of naphthenic acids in a system that mimics production water, comprising: (a) mixing, in a mimicking system, an aqueous phase and an oily phase comprising acidic species, varying parameters of pH, salinity, alkalinity as a function of carbonated species, concentration of divalent ions, temperature and / or pressure, under mechanical agitation; (b) collecting samples of the aqueous fraction; and (c) performing titration of the collected aqueous phase samples. The present invention further relates to a production water mimicking system comprising: a mechanical agitation system; a resistant material reactor, comprising a single inlet for aqueous phase, organic phase and sample; a gas inlet controller; a heating and temperature control system; and a pressure relief valve sample collection system.

The invention relates to a bicarbonate production system and a bicarbonate production method. The bicarbonate production system according to the present disclosure comprises: a removal device that removes an acidic substance in a first exhaust gas to produce a second exhaust gas; a bicarbonate production device that produces bicarbonate by reacting carbon dioxide in at least one of the first exhaust gas and the second exhaust gas with an alkaline earth compound in the reaction solution; and a pH sensor that detects the pH of the reaction solution. The introduction amount of the first exhaust gas and the introduction amount of the second exhaust gas to be introduced into the bicarbonate production apparatus are controlled so that the pH of the reaction solution detected by the pH sensor is maintained within a predetermined target pH range.

The utility model discloses a combined filter for a lithium battery liquid injection process and a rotary dehumidifier, and belongs to the technical field of air treatment equipment, the combined filter comprises a nylon filter screen and an acid removal filter screen, the air inlet end of the nylon filter screen is tightly attached to the air outlet end of the acid removal filter screen; the characteristics of excellent acid resistance, abundant fiber structures on the surface and the like of the nylon filter screen are fully utilized, so that acidic substances in air can be effectively intercepted under the condition of not causing relatively large air pressure loss; and the nylon filter screen is tightly attached to the deacidification filter screen, so that the intercepted acidic substances can further enter the deacidification filter screen to neutralize the corresponding acidic substances, and the purpose of deacidification of the air is achieved.

The invention relates to the technical field of chemical production, and discloses a methyl (meth) acrylate production wastewater treatment process. The invention relates to a methyl (meth) acrylate production wastewater treatment process. The process comprises the following steps: removing light components in wastewater; mixing the wastewater from which the light components are removed with an extraction agent, so that acid in the wastewater enters the extraction agent to obtain an acid extraction solution; separating the extracting agent from the acid extracting solution to obtain an acid solution; and further refining the acid liquor to obtain a mixed acid product. According to the technical scheme provided by the invention, a specific process of removing light components in the wastewater, extracting acid substances in the wastewater by using the extracting agent, recycling the extracting agent and recycling the mixed acid is adopted, so that the acid substances in the wastewater can be effectively removed, and a mixed acid product with the purity of 95 wt% or above can be obtained.

This invention discloses a method for preparing a tamarind polysaccharide-based phytate amine biochemical flame retardant hybrid flame retardant for rubber and plastics. Through molecular design, it fully utilizes the complementary advantages of biomass polysaccharides and phosphorus and nitrogen materials. Under heating conditions, it mediates the reaction between phytate amine and tamarind polysaccharide in an aqueous system. The active phosphate groups in phytate amine undergo esterification with the hydroxyl groups of polysaccharide, firmly grafting phytate amine onto the polysaccharide backbone through chemical bonds. A stable network structure is formed through multiple intermolecular hydrogen bonds, constructing a hybrid flame retardant system that integrates acid source, carbon source, and gas source functions. This flame retardant fully utilizes the ability of phytate amine to decompose and release acidic substances to catalyze char formation and generate non-combustible gases. Combined with the efficient dehydration and carbonization characteristics of tamarind polysaccharide, it can form a dense expanded char layer when heated, effectively isolating heat transfer and gas exchange, and significantly improving the thermal stability of the material.

The present application relates to a kind of organic amine neutralizer for atmospheric and vacuum unit and its application, belong to neutralizer technical field.The neutralizer of the present application is compounded by multiple organic amines, and the main component is ethylene amine and ethanol amine.Directly according to formula, single-component organic amine is added to compound, it can also be prepared by two-step combination of first synthesis and then compounding, the latter can reduce cost, with higher economic benefit.The organic amine neutralizer of the present application is applied to refinery atmospheric and vacuum unit fractionating column top volatile line corrosion prevention, can replace conventional ammonia water.It has the following advantages: suitable for tower top volatile line environment in distillation range;easily soluble in water at dew point temperature, not corrosive in dew point area;with low melting point, good water solubility, no ammonium salt scale, not accumulated, not blocked;stable pH, easy to control;safe and environmentally friendly;good corrosion inhibition effect;excellent performance, high cost performance, etc.

The electrolyte comprises a functional additive A. The functional additive A contains an imidazole ring, a cyano group, an isocyanate group and the like and can be subjected to a reduction reaction on the surface of a negative electrode prior to an organic solvent to form a compact and stable solid electrolyte interface film (SEI) rich in organic and inorganic nitrogen components, and the solid electrolyte interface film can be applied to a lithium ion battery. Volume expansion and side reaction of the negative electrode at high temperature are effectively inhibited, and a negative electrode interface is protected; moreover, electron-rich groups in molecules of the functional additive A can efficiently capture trace water in the electrolyte and acidic substances generated by electrolyte salt decomposition, so that the acidity increase and chain decomposition of an electrolyte system are inhibited from the source, the high-temperature stability of an electrolyte body is improved, and the service life of the electrolyte is prolonged. Therefore, the electrolyte provided by the embodiment of the invention is suitable for a high-nickel and high-silicon battery system, and has excellent high-temperature cycle life and storage performance.

The invention discloses a wet deacidification process and device for fumed silica, and belongs to the technical field of deacidification. The middle lower end of the tank body is connected with a deacidification assembly; the deacidification assembly comprises an air inlet assembly, a material bearing assembly and a material discharging assembly, the air inlet assembly is fixedly connected with the tank body, the material bearing assembly is installed at the air outlet end of the air inlet assembly, the material discharging assembly is in attached sliding connection with a transverse hole formed in the bottom of the material bearing assembly, and the material discharging assembly is fixedly connected with the tank body; the middle lower end of the tank body is further connected with a feeding assembly, and the discharging end of the feeding assembly is movably connected with the material bearing assembly; a top cover is fixedly connected to the top of the tank body; a filtering assembly is fixedly connected to the top in the top cover. According to the method disclosed by the invention, the gas-phase white carbon black is in contact with water vapor, the water vapor penetrates through internal channels of the gas-phase white carbon black nanoparticles to carry out acidic substances on the surfaces of the gas-phase white carbon black nanoparticles, so that the acidic substances on the surfaces are removed, the deacidification process can be completed in a relatively short time through wet and hot air deacidification, and man-made impurities in a product are reduced.

The invention relates to the technical field of acid mist monitoring, and discloses an acid mist air draft monitoring device and monitoring system for electrolytic copper foil production, the device comprises a pipeline, the inner wall of the top side of the pipeline is fixedly connected with an air draft device, the inner wall of the top side of the pipeline is fixedly communicated with a flow guide pipe, and the inner wall of the bottom side of the pipeline is fixedly provided with a plurality of online acid mist concentration monitors; the driving motor rotates to drive the rotating shaft to rotate, so that the cyclone plate in the moving groove abuts against the abutting inclined plate, vertical reciprocating motion is generated, when acid mist molecules flow through the area, the acid mist molecules are blocked by the cyclone plate, rotational flow deviating from the original motion trail is generated, and the acid mist molecules are separated from the original motion trail. And the formation of the rotational flow has obvious influence on acid mist molecules, and the acid mist molecules and crystal substances attached to the inner wall of the pipeline can be effectively washed down, so that the acid mist molecules and the crystal substances on the inner wall of the pipeline are stripped by continuous impact of the rotational flow, and the accumulation of acidic substances on the inner wall of the pipeline is reduced.

The invention relates to the field of waste oil regeneration, and discloses a waste white oil regeneration method and device, and the method comprises the following steps: S1, mixing and stirring waste white oil and a sodium hydroxide aqueous solution, and carrying out alkali washing; s2, deionized water is added into the white oil subjected to alkali washing, stirring and mixing are conducted at the normal temperature, and then a water phase is separated; S3, activated clay is added into the white oil subjected to phase separation, and stirring adsorption is conducted; and S4, filtering: cooling the white oil refined by the carclazyte, and then carrying out suction filtration while the white oil is hot to obtain regenerated white oil, and the device comprises a soft water tank, a decolorizing agent tank, a crude oil tank and other parts. Acidic substances, pigments and peculiar smells are synchronously removed through a multi-stage cooperative treatment technology of alkali washing, water washing and carclazyte refining. Compared with a step-by-step treatment or single-process regeneration method in the prior art, the method has the advantages that the defects of poor oil stability and repeated precipitation of residual impurities are overcome, and the regenerated white oil can directly meet the high-precision plastic processing requirement.