206 results about "Acid substances" patented technology

The invention provides wear-resistant and corrosion-resistant lubricating oil and a preparation method thereof. The wear-resistant and corrosion-resistant lubricating oil is prepared from the following raw materials in parts by weight: 88-92 parts of base oil, 3-6 parts of phosphate and ammonium phosphate co-grafted graphene oxide, 0.5-1 part of a purification dispersant, 0.5-1 part of an antirust agent, 2-4 parts of an antioxidant, 0.5-1 part of a defoaming agent and 0.5-1 part of a pour point depressant. The phosphate and the ammonium phosphate are jointly grafted with the graphene oxide, and the wear resistance and the corrosion resistance of the lubricating oil are synergistically improved by utilizing the'nano bearing 'effect of a phosphate group, an ammonium phosphate group and the graphene oxide; meanwhile, by utilizing the capacity of ammonium phosphate groups for neutralizing acidic substances and the chelation of phosphate groups and combining the high specific surface area and barrier property of the graphene oxide, the anti-corrosion and anti-oxidation effects are further enhanced. Through a multifunctional synergistic effect, the problem that a traditional additive is single in function is solved, and the service life of the lubricating oil in high-temperature, high-load and extreme environments is remarkably prolonged.

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 direct contact type mineral oil dielectric cooling liquid and a preparation method thereof, the cooling liquid comprises the following raw materials: mineral type naphthenic base white oil, an antioxidant and a light stabilizer, aromatic hydrocarbon of the mineral type naphthenic base white oil is completely hydrogenated and saturated and does not contain corrosive sulfur, nitrogen, oxygen and other heteroatoms, and the refined naphthenic base oil has good environmental protection property and good corrosion resistance. And moreover, the problem that the cable becomes hard after being soaked in the cooling liquid is solved, the compatibility with other materials is good, and the cooling liquid can have good compatibility with materials of a liquid cooling system without adding cable compatibilizers such as oily epoxy resin and a dispersing agent. The mineral oil type dielectric cooling liquid disclosed by the invention is colorless, transparent, good in environmental protection property, good in flowing property, fireproof safety performance, heat-conducting property, insulating property and oxidation stability, free of acidic substances and corrosion, less in water absorption in a use process, good in stability, excellent in compatibility with IT equipment materials, power lines and network cables, and good in corrosion resistance. And yellowing due to light and heat is not easily caused.

According to the dry fish maw capable of inhibiting fat oxidation and the preparation method thereof, fresh air bladders are soaked in a lactic acid bacteria solution, then subjected to anti-oxidation treatment with a chlorogenic acid solution, soaked in alkali liquor and dried, and the dry fish maw capable of inhibiting fat oxidation is obtained. Lactobacillus treatment and chlorogenic acid anti-oxidation treatment are combined, alkali is used for neutralizing generated acidic substances, natural substances are used for treatment, harmful compounds are not introduced, and the eating risk is reduced. Moreover, the yellowness value can be effectively reduced, the increase of POV value and TBA value is inhibited, the rancidity and rancidity of the dried fish maw are reduced, and long-time storage is facilitated. The preparation process is green and safe, short in treatment time and suitable for industrial production of dried fish maw.

An acid substance (e.g., HCl) generated as the byproduct of an ocean alkalinity enhancement (OAE) process is neutralized using an in-situ acid neutralization subsystem by forcing the acid byproduct through an alkaline formation such that the acid substance is neutralized through interaction with alkaline rocks as the acid byproduct flows from an injection well to a recovery well. A flow rate of acid substance through the rock formation is optimized to (a) maximize the amount of neutralized acid substance, and (b) minimize the amount of residual acid substance at the recovery well. The acid flow rate is adjusted by mixing the acid byproduct with a buffer and / or by a flow control device. Acid neutralization and CO2 capture are combined by forcing CO2 through the alkaline formation to react with divalent ions generated by the acid neutralization process, thereby mineralizing the CO2 in the form of carbonate rocks (e.g., limestone or dolostone).

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 preparation process of fermentation type roxburgh rose green tea wine and a product thereof, and relates to the technical field of preparation of fruit tea wine. The preparation process comprises the following steps: preparation of green tea extraction tea soup, component adjustment, yeast activation, fermentation, centrifugation and sterilization. The optimal fermentation process obtained through test investigation is as follows: the fermentation time is 9 days, the initial fermentation sugar degree is 22-degree Brix, the yeast inoculum size is 0.4%, the volume ratio of the roxburgh rose stock solution to the tea soup is 1: 5, the fermentation temperature is 26 DEG C, and the initial fermentation pH is 3.5. According to the fermentation type rosa roxburghii tratt green tea wine prepared under the optimal technological conditions, the alcoholic strength is 12.73% vol, the tea polyphenol content is 702 mg / L, the vitamin C content is 724 mg / L, the wine body is bright in color and rich in rosa roxburghii tratt fruit fragrance and tea fragrance, fragrant substances in the green tea wine are well reserved, ester, alcohol and acid substances of the green tea wine are enriched through introduction of rosa roxburghii tratt, and the taste of the green tea wine is improved. The green tea wine is endowed with more levels of fruit fragrance, grass fragrance, flower fragrance and milk fragrance, the taste is soft, the aftertaste is sweet, and the varieties of roxburgh rose and green tea processed products are enriched.

The invention discloses a boiler decoking and deashing combustion improver and a preparation method thereof, and relates to the technical field of decoking and deashing combustion improvers, the boiler decoking and deashing combustion improver comprises the following components by weight: 2-6 g of nano activated carbon, 1-4 g of iron oxide powder, 20-35 g of a functional auxiliary agent, 3-8 g of a functional filler, 6-20 g of nitrate, 20-48 g of carbonate, 2-7 g of borax, 15-48 g of diatomite, and 15-50 g of chlorate. According to the invention, surface tension can be reduced through the surfactant, so that the surfactant can permeate into the interface between coke dirt and dust and the boiler wall and weaken the adhesive force between the coke dirt and dust, the alkaline absorbent can react with acidic substances in the coke dirt and dust, so that the ash slag becomes loose, is easy to pulverize and is convenient to remove, and meanwhile, the alkaline absorbent can play a catalytic role at high temperature; the fuel is combusted more sufficiently, so that the combustion efficiency is improved, and the combustion-supporting effect is achieved; and the components in the functional filler can form a layer of protective film on the heating surface of the boiler, so that the deposition of impurities and ash in the fuel on the heating surface is reduced, and the formation of coking is inhibited.

The invention relates to the technical field of sewage treatment, and discloses a porous elemental sulfur and alkaline substance loaded suspension material as well as a preparation method and application thereof. The suspension material is prepared from the following components in percentage by weight: 50 to 70 weight percent of elemental sulfur, 15 to 30 weight percent of a slow-release alkaline material, 3 to 8 weight percent of a foaming agent, 10 to 25 weight percent of a light material and 2 to 5 weight percent of a binder. Through the synergistic effect of the slow-release sulfur and the alkaline substance, continuous electron donors are provided for sulfur autotrophic denitrification, acidic substances generated by the reaction can be effectively neutralized, the pH value of the system is maintained within the optimal range of 6.5-8.0, and the problems that in traditional sulfur autotrophic denitrification, the pH fluctuation is large, and the denitrification efficiency is unstable are solved. The suspension material disclosed by the invention can be directly added into a heterotrophic denitrification unit or an anaerobic ammonia oxidation unit of a sewage treatment plant, so that the denitrification efficiency is improved, and an efficient, economical and sustainable technical scheme is provided for upgrading and reconstruction of a biological denitrification process of the sewage treatment plant.

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 present invention discloses a mine fire prevention and extinguishing gel based on temperature-controlled release and its preparation method, belonging to the technical field of fire prevention and extinguishing materials. The mine fire prevention and extinguishing gel includes a sodium silicate solution and microcapsules. The microcapsules include a core composed of an acidic reagent and a capsule wall coated outside the core. The core is an acidic reagent, and the capsule wall is a copolymer of gelatin and polysaccharide. When the mine fire prevention and extinguishing gel flows through a suspected high-temperature area, if the gel encounters a real high-temperature area, the microcapsule wall material in the mine fire prevention and extinguishing gel melts, and the acidic substance wrapped by the wall material undergoes a phase change with the sodium silicate solution to generate a silicate gel. The formed silicate gel increases in viscosity, weakens in fluidity, and accumulates at the high-temperature location, completing the identification and residence of the real high-temperature area. It solves the problems of the traditional temperature-sensitive phase change gel having too high an initial viscosity before phase change, losing too much water during phase change, and slow gel formation, realizes the targeted identification and residence of high-temperature points in the fire area, and the material is non-toxic and has a low cost, with broad application prospects.

The invention belongs to the technical field of organic separation, and particularly relates to a method for separating phenol monomers from mixed phenol. The method for separating the phenol monomer from the mixed phenol comprises the following steps: mixing and heating the mixed phenol, an acid catalyst, first phenol and zirconium phosphate for reaction to obtain a cracking product; adding sulfuric acid into the cracking product to form a reaction solution, and after the reaction is finished, filtering to obtain a cracking reforming product of the mixed phenol; and then rectifying and purifying the cracking reforming product in sequence. The method has the beneficial effects that ethyl in 2-ethyl-6-cresol in alkylphenol and isopropyl / propyl in o-isopropyl phenol are removed at a high temperature, 2, 4-xylenol and 2, 5-xylenol are subjected to transposition to obtain 3, 5-xylenol and mixed xylenol with high content of 2, 5-xylenol, and the content of 2, 5-xylenol is increased. And then controlling the temperature to be reduced to a certain temperature, carrying out step-by-step reaction on excessive phenol, ethylene and propylene in the presence of an acidic material catalyst, and rectifying to obtain products such as o-isopropylphenol and p-isopropylphenol.

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 present invention provides a high-airtightness metal-resin composite and a method for nano-processing its metal surface, the method comprising the following steps: cleaning the metal parts to remove grease on their surfaces; performing a chemical sand treatment on the metal parts to form numerous micrometer-level holes on their surfaces; performing a ash removal and chemical polishing treatment on the metal parts to remove the gray film on their surfaces; performing an oxidation treatment and thiourea-modified adsorption on the metal parts, so that the thiourea-modified adsorption can be fully adsorbed in the micrometer-level holes and nanometer-level holes under the action of electric current; performing a water washing treatment on the metal parts to remove the acidic substances remaining on their surfaces; performing a drying treatment on the metal parts to remove the water remaining on their surfaces. The main purpose of the present invention is to solve the problem that the metal-resin composite manufactured by the existing nano-molding technology has a low airtightness level. The present invention relates to the technical field of nano-molding.

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.