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40results about How to "Reduce the concentration of chloride ions" patented technology

Method for preparing dimethyl silicone polymer by hydrolyzing dimethyl dichlorosilane with concentrated acid

The invention discloses a method for hydrolyzing dimethyl dichlorosilane with concentrated acid. The method comprises the following steps: mixing the dimethyl dichlorosilane with hydrochloric acid to carry out hydrolytic reaction; mixing the obtained reaction liquid with a solvent; finally, performing separating operation on the obtained mixed solution to obtain hydrolysis product and hydrogen chloride gas. Through the adoption of the method, the content of cyclic polysiloxane in hydrolysate obtained from the dimethyl dichlorosilane through the concentrated acid hydrolyzing method is effectively increased; the design is reasonable, hydrolysate with low chlorine ion content can be obtained in no need of multi-stage phase separation procedures, and the hydrochloric acid and solvent obtained after separation can be recycled, so that the resource use ratio is improved, and the production cost is saved.
Owner:HOSHINE SILICON IND CO LTD

Method and device for removing dioxin from high-temperature flue gas

InactiveCN107261788AReduce generationThe efficiency of adsorption and decomposition is improvedCombination devicesGas treatmentEngineeringFlue gas
The invention mainly belongs to the technical field of a treating method for high temperature flue gas and a device thereof and specifically relates to a method and a device for removing dioxin from high-temperature flue gas. The method comprises the following steps: firstly, recycling the waste heat of the high-temperature flue gas, removing dust and de-acidifying and then quickly cooling, removing the dust for the second time, entering into a photo-decomposing purifying tower for decomposing dioxin and then emitting. The resynthesis of dioxin is restrained in the manner of recycling the waste heat of the high-temperature flue gas, removing dust and de-acidifying and then quickly cooling and the ultraviolet ray is utilized to catalytically decompose dioxin, so that the simple and efficient removal of the dioxin in the high-temperature flue gas is realized. The method and the device for removing the dioxin according to the invention have the characteristics of simplicity, high efficiency, and the like, and are easy for industrial application.
Owner:UNIV OF SCI & TECH BEIJING

Device and method for electrolytic treatment of acid organic wastewater with high salinity

The invention discloses a device and a method for electrolytic treatment of acid organic wastewater with high salinity. The device comprises a reactor and a power supply, wherein the reactor is provided with a plurality of reaction chambers which are connected; a water inlet and a water outlet are respectively connected with the reaction chambers on the outermost sides; a flow guide hole for wastewater flow is formed between each two adjacent reaction chambers; and top covers cover the reaction chambers. The reaction chambers comprise at least two electrolytic chambers, wherein different types of electrode couples are arranged in the electrolytic chambers and are connected with the power supply through connecting lines, and at least one reaction chamber used as a homogeneous pool or a buffer chamber is arranged between the electrolytic chambers. According to the invention, a multistage-electrode electrolysis combining method is adopted to improve the electrolytic efficiency of different pollutants, so that the pollutants in the wastewater are degraded to a maximum extent, and the concentration of chloride ions is lowered and the acidity is neutralized at the same time. Therefore, the multifunction of an electrolytic reaction is realized. Besides, based on a multistage continuous electrolytic reaction, the pollutants can be removed more thoroughly, and the removal efficiency is higher.
Owner:SHAANXI UNIV OF SCI & TECH

Magnesium desulfurization byproduct recovery process

The invention relates to a magnesium desulfurization byproduct recovery process, and provides a magnesium desulfurization byproduct recovery method. The method comprises the following steps: (1) carrying out oxidation in a desulfurization tower: introducing air to the desulfurization tower air and stirring, such that magnesium sulfite in a slurry is completely oxidized into magnesium sulfate; (2) increasing magnesium sulfate concentration in the desulfurization tower: controlling a water supply amount and a slurry discharge amount of the desulfurization tower, and adopting heat of flue gas in the desulfurization tower to carry out concentration on the desulfurized slurry so as to increase the magnesium sulfate concentration in the slurry to 30-35 wt%; (3) removing impurities: conveying the slurry from the step (2) to an expansion drum type filter to remove impurities; and (4) carrying out evaporation crystallization: conveying the filtrate from the step (3) into a two effect falling film evaporator to carry out evaporation crystallization to obtain a magnesium sulfate heptahydrate crystal.
Owner:CHINA PETROLEUM & CHEM CORP +3

Coral reef sand strengthened material and using method thereof

InactiveCN108640551AOvercoming the defect of low liquidityImprove liquidityAcrylic resinCarvacryl acetate
The invention provides a coral reef sand strengthened material and a using method thereof. The coral reef sand strengthened material consists of 100 parts of water, 1 part of polyacrylamide, 20-25 parts of water-soluble thermosetting glue, 5-10 parts of a polyvinyl acetate emulsion and 50-100 parts of cement, wherein the water-soluble thermosetting glue can be one selected from phenolic resin or acrylic resin. The manufacturing method and using method of the material are simple, the preparation raw materials are easy to obtain, the cost of strengthening treatment on coral reef sand is low, andthe material is convenient to use in islands and coastal areas. Through the adoption of the strengthened coral reef sand, the strength of cement mortar or concrete prepared by the coral reef sand isobviously improved, and chloride ions contained in the coral reef sand can be effectively prevented from diffusing to the outside, so that the corrosion probability of steel bars in coral reef sand concrete is reduced, and meanwhile, the fluidity of the mortar or the concrete prepared by the coral reef sand is also improved.
Owner:TONGJI UNIV

Preparation method of multifunctional reinforced concrete corrosion inhibitor

The invention discloses a preparation method of a multifunctional reinforced concrete corrosion inhibitor and relates to a reinforced concrete corrosion inhibitor. The preparation method comprises the steps that 1, layered double hydroxide is used as a precursor to perform calcination; 2, a calcination product obtained through the step 1 is arranged in a sodium hydroxide solution, and stirring, filtration and washing are performed to obtain a filtration product 1; 3, the filtration product 1 is arranged in a potassium hydrogen phthalate solution, and stirring, filtration and washing are performed to obtain a filtration product 2; 4, the filtration product 2 is dried and then is grinded into powder, namely the multifunctional reinforced concrete corrosion inhibitor is obtained. A modification and calcination reforming method is utilized to load various corrosion inhibitor ions in a layered structure of the double hydroxide so as to obtain the multifunctional reinforced concrete corrosion inhibitor, the multifunctional reinforced concrete corrosion inhibitor is used in a concrete structure, can simultaneously reduce the chloride ion concentration in concrete, release the corrosion inhibitor ions, keep the high pH value of the concrete and improve the concrete compactness, has excellent comprehensive anti-corrosion performance for the reinforced concrete structure and can provide multiple effective protection for steel bars embedded in the concrete.
Owner:XIAMEN UNIV

Method for recycling and deeply treating heat of oxygen-rich wet oxidation heat of glyphosate mother liquor

The invention discloses a method for recycling and deeply treating heat of oxygen-rich wet oxidation heat of glyphosate mother liquor, and belongs to the technical field of chemical engineering. The method comprises the following process steps: producing by using a glycine method and an iminodiacetic acid method so as to obtain glyphosate and glyphosate mother liquor; concentrating the glyphosate mother liquor; mixing the concentrated glyphosate mother liquor, compressed air and liquid oxygen, sequentially feeding into a first-stage preheater, a second-stage preheater, a first-stage reactor, a waste heat boiler and a second-stage reactor for treatment, sequentially feeding back an oxidized liquid obtained from the second-stage reactor to the waste heat boiler, the second-stage preheater and the first-stage preheater for heat exchange, cooling to crystallize the oxidized liquid after heat exchange so as to obtain a phosphate product, and concentrating the crystallized oxidized liquid so as to obtain a concentrated liquid and a penetrate liquid; concentrating the penetrate liquid so as to obtain a sodium chloride product, and recycling the distillated liquid as a recycled liquid to be used in a glyphosate production process; performing hydrogen peroxide photo-catalytic oxidation reaction on the concentrated liquid. By adopting the method, the production cost is lowered, and the reaction efficiency is improved.
Owner:JIANGXI JINLONG CHEM +1

Method for removing chlorine in copper sulfate solution by copper refining slag

The invention discloses a method for removing chlorine in a copper sulfate solution by copper refining slag. The method for removing the chlorine in the copper sulfate solution by the copper refining slag comprises the following steps that the copper refining slag is smashed, ball-milled to a certain particle size, and then added into the copper sulfate solution containing the chlorine; and sub copper and chlorine ions in the copper refining slag are formed into cuprous chloride which is insoluble in acid, and after the cuprous chloride is filtered by a plate-and-frame press filter, a low chloride copper sulfate solution is obtained. The method can be widely used for removing the chlorine ions of all kinds of concentrations in the copper sulfate solution, the steps are easy, and operation is simple and convenient; the sources of antichlor are wide, production cost is low, secondary pollution is not generated in the whole production process, and chlorine removing slag can be returned to conduct fire melting to extract copper.
Owner:江西自立环保科技有限公司

Novel method for reducing chloride ion concentration in acid copper plating solution

InactiveCN104862751AReduce the concentration of chloride ionsSolve the problem of zinc impurity generationCellsCopper platingReaction rate
The invention discloses a novel method for reducing chloride ion concentration in an acid copper plating solution. The method comprises the following steps: adding copper powder in the acid copper plating solution to react for 10-20 min, and filtering to remove a sediment. According to the novel method for reducing the chloride ion concentration in the acid copper plating solution, Cu<2+> ions and chloride ions in the plating solution are simultaneously reacted with copper powder to generate the cuprous chloride sediment, so as to realize the purpose of reducing chloride ions. The method is better in chloride ion treatment effect, and high in reaction rate; through the method, the reaction can be completed within 10 min; the removal rate of the chloride ions is high; zinc impurities cannot be generated in the plating solution; compared with traditional methods, the method has significant advantages.
Owner:GUANGZHOU ULTRA UNION CHEM LTD

Electrolyte solution, electrolytic copper foil and manufacturing method thereof

The invention discloses an electrolyte solution, electrolytic copper foil and manufacturing method thereof. The electrolyte solution is used for manufacturing the electrolyte copper foil, and containscopper ions of 50 to 90 g / L, sulfuric acid of 50 to 120 g / L and Cl ions of a concentration of not higher than 1.5 ppm. The electrolytic copper foil manufactured after the abovementioned electrolyte solution is electrolyzed has ten-point average roughness of not higher than 2 [mu]m on a surface at one side which is in contact with the electrolyte solution, the electrolytic copper foil has an elongation difference value generated through thermal treatment, and the elongation difference value is negatively correlated with an initial grain size of the electrolytic copper foil. The electrolytic copper foil provided by the invention has low roughness and special mechanical property, and can be applied to an electrical assembly.
Owner:NANYA PLASTICS CORP

Pi-shaped pile foundation open-typepermeable bulwark with arc slab and design method of bulwark

The invention discloses a Pi-shaped pile foundation open-typepermeable bulwark with an arc slab and a design method of the bulwark. The bulwark comprises a lower pile foundation and an upper wave blocking structure, wherein the wave blocking structure is supported by a beam on the pile foundation, and comprises the arc slab, web plates, a bottom plate and rib plates, the arc slab, the two web plates with the tops connected with the arc slab, and the bottom plate connected with the bottoms of the web plates form a Pi-shaped-section prefabricated member, and the rib plates fix the web plates and the bottom plate. The Pi-shaped pile foundation open-typepermeable bulwark has a good wave prevention effect, can effectively reduce high transmitted wave behind the bulwark and maintain berthing stability conditions in a harbor, and has a better mechanical characteristic, and the structure cannot be easily damaged by waves; besides, the bulwark adopts a pile foundation open-typepermeable structure, allows water exchange inside and outside the harbor , and is environment friendly.
Owner:嘉兴快闪新材料有限公司

Improved method for cultivating microorganisms

The invention provides an improved method for cultivating halophilic microorganisms. According to the method, NaCl which is conventionally used for providing a high-salt environment for the halophilicmicroorganisms is completely or partially replaced by other sodium salts, and therefore the chloride ion concentration in the fermentation system can be reduced, so that corrosion of chloride ions inthe fermentation system to a fermentation device is reduced, subsequent wastewater treatment is facilitated, and microbial contamination during open fermentation is reduced; and the invention also relates to a culture medium for the cultivation.
Owner:TSINGHUA UNIV

Method for reducing concentration of chloride ions in wastewater

The invention relates to the field of wastewater treatment, in particular to a method for reducing the concentration of chloride ions in wastewater, which comprises the following steps that: S1, the concentration of CL ions, the concentration of sulfate radicals and the concentration of magnesium ions in wastewater of an adjusting tank are detected; S2, a calcium hydroxide solution is added, wherein the molar ratio of the adding amount of the calcium hydroxide solution to the adding amount of sulfate radicals is 1.2: 1; S3, a sodium hydroxide solution is added, and the molar ratio of the sum of the adding amount of sodium hydroxide and the adding amount of hydroxyl in the step S2 to the adding amount of magnesium ions is 2: 1; S4, PAC and PAM are added, precipitating and standing are carried out, and the wastewater overflows into a reaction box; S5, calcium hydroxide and sodium metaaluminate powder are added according to the molar ratio of CL radicals to calcium hydroxide to sodium metaaluminate being 2: 3: 2; S6, PAM and PAC are added, and then the wastewater enters a clarifier to be precipitated and stand; S7, the bottom mud in the step S4 and the bottom mud in the step S6 entera plate-and-frame filter press, and filtrate enters the adjusting tank; and S8, the overflow in the step S6 flows back to a desulfurization tower. Through the arrangement mode, the concentration of CLions in the desulfurization wastewater is reduced by utilizing a chemical reaction.
Owner:BEIJING SPC ENVIRONMENT PROTECTION TECH

Device and method for performing construction by taking marine sand as concrete fine aggregates

The invention discloses a device and a method for performing construction by taking marine sand as concrete fine aggregates. The device comprises a direct-current power supply and a template (1), wherein a sliding groove is formed in the inner surface of the template (1); a stainless steel plate (3) is arranged at the bottom of the sliding groove; a drawer plate is arranged in the sliding groove in a sliding-fit manner; a conductive net (11) is embedded in the inner side of a steel reinforcement cage (8) of a concrete structure (6); a positive electrode of the direct-current power supply is connected with the stainless steel plate (3) through a lead wire; and a negative electrode of the direct-current power supply is connected with the conductive net (11). The method comprises the following key steps: pouring and tamping the concrete aggregates; in 2-4 days, pulling out the drawer plate and sealing an opening of the sliding groove with a seal strip (5), so that the surface of the concrete structure (6), the seal strip (5) and the sliding groove form a sealed chamber; and filling the chamber with an electrolyte solution (7), so that chlorine ions in the concrete structure (6) are migrated to the electrolyte solution (7). According to the device and method, the chlorine ion concentration of the marine sand can be effectively reduced.
Owner:NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG

Preparation method of novel phosphate group-containing melamine-formaldehyde oligomer type migratory steel bar corrosion inhibitor

ActiveCN111234151AReduce the concentration of chloride ionsImprove long-term resistance to chloride ion erosionPhosphoric acidPyrimidine
The invention provides a preparation method of a novel phosphate group-containing melamine-formaldehyde oligomer type migratory steel bar corrosion inhibitor. The preparation method comprises the following steps: firstly, modifying melamine into a melamine monomer containing hydroxymethyl and phosphate groups by utilizing amino groups on melamine; and carrying out intramolecular dehydration on melamine molecules containing hydroxymethyl and phosphate groups to obtain the straight-chain melamine-formaldehyde oligomer type migratory steel bar corrosion inhibitor. The melamine is used for preparing the migratory steel bar corrosion inhibitor, and the molecular configuration and molecular weight of the steel bar corrosion inhibitor can be adjusted to meet the requirements of different ocean engineering. The application field of melamine monomers is widened, and the production cost of the migratory steel bar corrosion inhibitor is reduced. Meanwhile, the problems that the process for preparing the steel bar corrosion inhibitor from imidazole, pyrimidine, pyridine, five-membered and six-membered heterocyclic chemicals is complex, and highly toxic waste gas is generated in the productionprocess are solved. The prepared migratory corrosion inhibitor has a good corrosion inhibition effect on reinforcing steel bars, realizes the high performance of the reinforcing steel bar corrosion inhibitor, and has a wide application prospect.
Owner:JINLING INST OF TECH

Device and method for performing construction by taking marine sand as concrete fine aggregates

The invention discloses a device and a method for performing construction by taking marine sand as concrete fine aggregates. The device comprises a direct-current power supply and a template (1), wherein a sliding groove is formed in the inner surface of the template (1); a stainless steel plate (3) is arranged at the bottom of the sliding groove; a drawer plate is arranged in the sliding groove in a sliding-fit manner; a positive electrode of the direct-current power supply is connected with the stainless steel plate (3) through a lead wire; and a negative electrode of the direct-current power supply is connected with a steel reinforcement cage (8) of a concrete structure (6) through a lead wire. The method comprises the following key steps: pouring and tamping the concrete aggregates; waiting for 2-4 days, pulling out the drawer plate and sealing an opening of the sliding groove with a seal strip (5), so that the surface of the concrete structure (6), the seal strip (5) and the sliding groove form a sealed chamber; and filling the chamber with an electrolyte solution (7), so that chlorine ions in the concrete structure (6) are migrated to the electrolyte solution (7). According to the device and method, the chlorine ion concentration of the marine sand can be effectively reduced.
Owner:NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG

Production method of ethylene diaminetetraacetic acid ferric sodium salt

The invention discloses a production method of ethylene diaminetetraacetic acid ferric sodium salt. The production method comprises the following steps that a primary reaction is carried out, whereinferric trichloride reacts with ethylene diaminetetraacetic acid tetrasodium salt in water to obtain a stock solution A and a solid product B; the solid product B is dried to prepare the ethylene diaminetetraacetic acid ferric sodium salt; the stock solution A is subjected to chromatographic treatment to obtain a component A-1 containing sodium chloride NaCl and a component A-2 containing the ethylene diaminetetraacetic acid tetrasodium salt; the component A-1 is crystallized and separated to obtain NaCl solid C and NaCl filtrate D, the NaCl solid C is dried to prepare byproduct solid NaCl, andthe NaCl filtrate D is subjected to the operation in the filtrate treatment step again; the component A-2 containing the ethylene diaminetetraacetic acid tetrasodium salt is subjected to the primaryreaction again. The method has the advantages that the ethylene diaminetetraacetic acid ferric sodium salt and sodium chloride in reaction liquid can be separated, the separated component containing the ethylene diaminetetraacetic acid ferric sodium salt can serve as the reaction liquid to participate in the reaction as the raw material again; meanwhile, the byproduct sodium chloride is obtained and utilized.
Owner:北京海德恒生科技发展有限公司

Diuretic active drug cell screening model, and establishing method and application thereof

The invention relates to a diuretic active drug cell screening model, and an establishing method and application thereof. The method comprises the steps: (1), culture of MDCK cells; (2), preparation of drugs; (3), screening of NaCl transport concentration; (4), grouping, drug administration and NaCl transport experiment; and (5), statistical analysis. According to the method in the invention, diuretic active drugs are screened through a model for simulating sodium chloride transport by renal tubular cells is adopted; furthermore, the fact that it is effective can be proved in a pyrrosia linguaextraction monomer diuretic active screening experiment; and the model is a relatively rapid cell model diuretic drug screening model.
Owner:贵州中医药大学

5-aminolevulinic acid phosphate, method for producing the same and use thereof

A 5-aminolevulinic acid salt which is useful in the fields of microorganisms, fermentation, animals, medical science, plants and so on; a process for producing the same; a medicinal composition containing the same; and a plant vitalizer composition containing the same.
Owner:COSMO ALA CO LTD

Desulfurization wastewater recycling process and implementation device

The invention belongs to the field of industrial wastewater treatment. A desulfurization wastewater recycling process includes: pretreating desulfurization wastewater discharged from a desulfurizationtower, mixing pretreated desulfurization wastewater with strong acid, performing gas-liquid mass transfer process treatment, collecting gas generated in gas-liquid mass transfer process treatment, adding lime milk into desulfurization wastewater after gas-liquid mass transfer process treatment to adjust pH to a certain fixed value, and returning wastewater reaching conditions of serving as replenishing water for a desulfurization process into the desulfurization tower to realize recycling. The implementation device of the desulfurization wastewater recycling process comprises a gas-liquid mass transfer device and a wastewater pH adjusting device. A pretreatment tank, an acid adjustment tank and the gas-liquid mass transfer device are in sequential connection, and a first spray tower and asecond spray tower are connected with a tail gas collection device and the wastewater pH adjusting device respectively. The process has advantages that by the engineering design, the process is slightly affected by desulfurization wastewater fluctuation, lower in investment and operating cost than similar processes, free of secondary pollutant solid wastes and the like, easiness in automatic operating of engineering and the like.
Owner:SHENGFA ENVIRONMENT PROTECTION TECH XIAMEN CO LTD +1

Potassium chloride acidic galvanizing electroplating solution and application thereof

The invention relates to a potassium chloride acidic galvanizing electroplating solution. The potassium chloride acidic galvanizing electroplating solution contains 120 to 150 g / L of KCl, 30 to 40 g / Lof ZnCl2, 25 to 30 g / L of H3BO3, 0.1 to 0.5 mL / L of a brightening agent, 20 to 30 mL / L of a softening agent and 6 to 12 mL / L of an auxiliary agent; in the brightening agent, Guerbet alcohol polyoxyethylene ether halogenated propanesulfonate accounts for 20 wt.%-30 wt.%, and benzalacetone accounts for 10 wt.%-25 wt.%; and the softening agent contains 5 wt.%-10 wt.% of 2,2', 4'-trihydroxy chalcone,10 wt.%-20 wt.% of beta-naphthol polyether sulfonate, 1 wt.%-3 wt.% of nicotinoylurea derivatives, 5 wt.%-10 wt.% of EN 16-80 and 1 wt.%-3 wt.% of sodium benzoate. According to the potassium chlorideacidic galvanizing electroplating solution, the concentrations of main salt and conducting salt in the electroplating solution are greatly reduced, the concentration of chloride ions in wastewater isgreatly reduced, the characteristics of high current efficiency, wide current density range, fine crystallization, excellent dispersion and the like of a traditional potassium salt galvanizing process can still be kept, and excellent leveling and moving performance is shown; and the electroplating solution has the advantages of being low in consumption of the main salt and the conductive salt, saving raw material cost, preventing bath voltage from being increased during electroplating under the same current and avoiding additional increase of the energy expenditure, thereby being suitable forrack plating and barrel plating.
Owner:武汉奥邦表面技术有限公司

Construction device and construction method using sea sand as concrete fine aggregate

The invention discloses a device and a method for performing construction by taking marine sand as concrete fine aggregates. The device comprises a direct-current power supply and a template (1), wherein a sliding groove is formed in the inner surface of the template (1); a stainless steel plate (3) is arranged at the bottom of the sliding groove; a drawer plate is arranged in the sliding groove in a sliding-fit manner; a conductive net (11) is embedded in the inner side of a steel reinforcement cage (8) of a concrete structure (6); a positive electrode of the direct-current power supply is connected with the stainless steel plate (3) through a lead wire; and a negative electrode of the direct-current power supply is connected with the conductive net (11). The method comprises the following key steps: pouring and tamping the concrete aggregates; in 2-4 days, pulling out the drawer plate and sealing an opening of the sliding groove with a seal strip (5), so that the surface of the concrete structure (6), the seal strip (5) and the sliding groove form a sealed chamber; and filling the chamber with an electrolyte solution (7), so that chlorine ions in the concrete structure (6) are migrated to the electrolyte solution (7). According to the device and method, the chlorine ion concentration of the marine sand can be effectively reduced.
Owner:NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG

Cloud module-based remote-control intelligent electro osmosis seepage prevention and moisture prevention system

The invention discloses a cloud module-based remote-control intelligent electro osmosis seepage prevention and moisture prevention system, which comprises a cloud computing simulation module, a simulation output module, a manual control module, an intelligent control module, a remote adjustment module, and a data acquisition and monitoring device. Data acquisition comprises acquisition of micro-current, voltage, wall humidity, air temperature, air humidity, and groundwater seepage pressure monitoring sensor data. cloud computing simulation of the remote-control intelligent electro osmosis seepage prevention and moisture prevention system can be realized, the device operation condition and the seepage prevention and moisture prevention effects can be monitored in real time, the device current and voltage parameters can be remotely controlled according to the monitored data, an operation mode of monitoring, feedback and timely processing is achieved, excessive electro osmosis of a concrete structure is prevented, the blank of a system for simulation of electro osmosis seepage prevention and moisture prevention is filled, cloud computing simulation is carried out, the system is convenient to operate, the execution effects of real-time prediction and early warning of electro osmosis seepage prevention and moisture prevention can be achieved, the remote-control intelligent real-timeperformance is realized, and the problem of uncertainties of the processing process of the electro osmosis seepage prevention and moisture prevention system can be reduced.
Owner:CHINA UNIV OF MINING & TECH

Plant area chilled water supplying and air conditioner cabinet condensate water recycling combined system

The invention relates to a plant area chilled water supplying and air conditioner cabinet condensate water recycling combined system. The plant area chilled water supplying and air conditioner cabinetcondensate water recycling combined system comprises chillers, air conditioner cabinets, a cooling water pool and a cooling tower; each chiller is provided with a high-temperature chilled water inletand a low-temperature chilled water outlet, and each low-temperature chilled water outlet communicates with the corresponding high-temperature chilled water inlet through the corresponding air conditioner cabinet; each air conditioner cabinet is provided with a condensate water outlet, and the cooling water pool communicates with the condensate water outlets; and in addition, the cooling water pool, the chillers and the cooling tower are sequentially connected in series. Compared with the prior art, condensate water generated by the air conditioner cabinets is recycled to the cooling water pool, the clean condensate water is fully utilized as supplementing water for circulating cooling water of the cooling tower, the concentration of chlorine ions in the circulating cooling water is decreased, the water treatment cost is reduced, the circulating cooling water pipeline corrosion risk is reduced, water resources are saved, the cooling capacity of the condensate water is fully utilized,and energy saving and consumption reducing are achieved.
Owner:NINGBO CITY HANGZHOUWAN NEW DISTRICT XIANGYUAN POWER SUPPLYING

A kind of production method of sodium iron edetate

The invention discloses a production method of sodium ferric edetate, comprising the following steps: preliminary reaction: reacting ferric chloride and tetrasodium edetate in water to obtain feed liquid A and solid product B; Dry the solid product B to obtain sodium ferric edetate; perform chromatography on the feed solution A to obtain component A-1 containing sodium chloride NaCl and component A-1 containing sodium ferric edetate 2; Component A-1 is crystallized and separated to obtain NaCl solid C and NaCl filtrate D, and NaCl solid C is dried to obtain by-product solid NaCl, and NaCl filtrate D is again subjected to the operation of the filtrate treatment step; Component A-2 of sodium ferric amine tetraacetate reenters the preliminary reaction step. The advantage of the present invention is that it can realize the separation of sodium ferric edetate and sodium chloride in the reaction liquid, and the component containing sodium ferric edetate after separation can be used as the reaction liquid to participate in the reaction again as a raw material, and at the same time, the by-product The product sodium chloride is used for the by-product sodium chloride.
Owner:北京海德恒生科技发展有限公司

Glyphosate Mother Liquor Oxygen-enriched Wet Oxidation Heat Recovery and Advanced Treatment Method

The invention discloses a method for recycling and deeply treating heat of oxygen-rich wet oxidation heat of glyphosate mother liquor, and belongs to the technical field of chemical engineering. The method comprises the following process steps: producing by using a glycine method and an iminodiacetic acid method so as to obtain glyphosate and glyphosate mother liquor; concentrating the glyphosate mother liquor; mixing the concentrated glyphosate mother liquor, compressed air and liquid oxygen, sequentially feeding into a first-stage preheater, a second-stage preheater, a first-stage reactor, a waste heat boiler and a second-stage reactor for treatment, sequentially feeding back an oxidized liquid obtained from the second-stage reactor to the waste heat boiler, the second-stage preheater and the first-stage preheater for heat exchange, cooling to crystallize the oxidized liquid after heat exchange so as to obtain a phosphate product, and concentrating the crystallized oxidized liquid so as to obtain a concentrated liquid and a penetrate liquid; concentrating the penetrate liquid so as to obtain a sodium chloride product, and recycling the distillated liquid as a recycled liquid to be used in a glyphosate production process; performing hydrogen peroxide photo-catalytic oxidation reaction on the concentrated liquid. By adopting the method, the production cost is lowered, and the reaction efficiency is improved.
Owner:JIANGXI JINLONG CHEM +1
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