43results about How to "Resolve enrichment" patented technology

The invention relates to baffle reaction-rectification equipment and a process for comprehensive utilization of dichlorosilane and silicon tetrachloride. The baffle reaction-rectification equipment comprises a main baffle reaction-rectification tower, an overhead condenser, a bottom reboiler and a bottom material circulating pump. The main reaction-rectification tower is divided into four parts by means of a vertical baffle plate arranged therein: a public rectifying section, a public stripping section, a reaction and pre-separation section and an extraction section, wherein, the reaction andpre-separation section is defined into a B section, a C section, an E section and an F section; the extraction section is defined into a D section and a G section; reaction catalysts are filled in the C section and the E section for reaction and rectification; and other parts are provided with efficient structured packing or a tower plate for rectification and separation. In the invention, trichlorosilane with high application value is prepared by adopting the dichlorosilane and the silicon tetrachloride with lower value, thus improving the application rate of raw materials, and solving the enrichment problem of the dichlorosilane and the silicon tetrachloride. By utilizing the baffle reaction-rectification process, a plurality of towers used in reaction and rectification as well as separation and purification are integrated in one baffle reaction-rectification tower, thus saving equipment investment of the tower, and lowering energy consumption.

The invention relates to a reactive distillation device preparing trichlorosilane from mixed chlorosilane and a method for the reactive distillation device. The method comprises the following steps of: feeding mixed chlorosilane raw materials at a middle position of an upper reaction section C and a lower reaction section E, obtaining dichlorosilane on the top of a tower, and making partial dichlorosilane return to the lower part of the lower reaction section E under the gravity and serve as a feed to enter the tower; obtaining silicon tetrachloride at the bottom of the tower, and returning partial silicon tetrachloride serving as a feed to the tower through the upper part of the upper reaction section C by using a feed liquid circulating pump at the bottom of the tower; extracting a trichlorosilane product in the middle of the tower; pressurizing and heating the partial dichlorosilane extracted on the top of the tower through a compressor, performing heat exchange with the partial silicon tetrachloride extracted at the bottom of the tower, returning the heated silicon tetrachloride to the bottom of the tower for refluxing, and returning the cooled dichlorosilane to the top of the tower for refluxing through a throttling valve and the feed liquid circulating pump on the top of the tower. The traditional reactive distillation equipment and subsequent separation and purification equipment are integrated in a dividing-wall tower, the process flow is simplified, the equipment investment is saved, and energy consumption is reduced.

The invention relates to a method for extracting glutamic acid decarboxylase from a banana peel, which comprises the steps of smashing the banana peel to paste to separate fiber and protein, wherein the length of fiber does not exceed 2mm; adding a phosphate buffer which is 5.0-7.0 in pH and contains 0.01-0.2g / L vitamin B6, shaking uniformly and standing and extracting for 1-5h, wherein each kilogram of banana peel corresponds to 2-7 liters of phosphate buffer; centrifugalizing at 6000-10000rpm for 10-50min to obtain a GAD (Glutamic Acid Decarboxylase) enzyme solution. The invention further provides a method for producing r-reanal by extracting glutamic acid decarboxylase from the banana peel. According to the invention, the waste in banana processing industry can be effectively used, the GAD and GABA (r-reanal) production costs are reduced, and the method can be used to produce GABA in a large scale.

The present invention relates to a high-purity cobalt preparation method, which comprises: cobalt solution extraction separation and purification, wherein a P507 organic extractant is prepared from P507 by using a saponification way, a cobalt chloride solution is added, extraction separation is performed by using a stirring extraction method, acid liquid washing and acid liquid back extraction are performed, the solution obtained after the back extraction is subjected to deep purification treatment by using a macroporous adsorption resin, and the obtained solution is concentrated to obtain the high-purity cobalt solution; electrodepositing, wherein the high-purity cobalt solution enters a self-heating electrolysis bath through a flow baffle from the bottom portion of the electrolysis bath from bottom to top so as to carry out single circulation electrodepositing, the concentration, the amount and the pH value of the solution in the electrolysis bath maintain the consistent state, and electrodepositing is performed to obtain high-purity electrodepositing cobalt; and vacuum melting, wherein the high-purity electrodepositing cobalt is subjected to vacuum melting so as to prepare the high-purity cobalt. According to the present invention, the product purity is more than 5N, the impurity enrichment problem caused by the electrolyte concentration difference is successfully solved, the cost is reduced, and the cross-contamination of the electrolyte is prevented.

The invention discloses a method for extracting and recycling titanium from an acid solution. Aiming at the acid solution with lower titanium concentration, organic phosphonate type extractants and amine type extractants are fully utilized and combined to generate a synergistic extraction effect, titanium can be selectively extracted and can be separated from impurity ions such as iron, aluminum and magnesium in the acid solution, an NaOH solution can be used for performing effective back extraction of titanium to obtain back extraction titanium slag, and performing calcination and water washing on the back extraction titanium slag to remove residual NaOH so as to obtain a titanium-rich material in which the content of TiO2 is 65-93%. The method disclosed by the invention solves the problems of selective separation and enrichment of titanium in the acid solution and the problem of difficult back extraction of titanium in other extraction processes, realizes the recycling of titanium with lower concentration in the acid solution, can enable low-concentration scandium contained in the solution to be together enriched into the titanium-rich material, and has the characteristics of simple technological process, high titanium enrichment ratio, thorough separation, low production cost, no pollution, comprehensive recycling of scandium and the like.

The invention discloses a sewage treatment device and method for synchronously recycling water and electric energy, and belongs to the field of sewage treatment. The method comprises the following steps that with urban sewage as inflow water, a mud-water mixed liquid is taken as a feed solution and enters a feed solution passage of a membrane assembly through a peristaltic pump, and brine is taken as a draw solution and enters a draw solution passage of the membrane assembly through a high-pressure pump. By utilizing the osmotic pressure difference of the two sides of an FO membrane, water flows from the feed solution side to the draw solution side, the mixed draw solution has high pressure and pushes a turbine to rotate in the outflowing process, and therefore the electric energy is generated. The diluted draw solution passes through a draw solution recycling system to obtain recycled water, and meanwhile, the concentrated draw solution continues to be used for the FO membrane. The sewage treatment device and method for synchronously recycling the water and electric energy are scientific and reasonable in technical design and have important significance for expanding the application of the forward osmosis membrane in sewage treatment.

The invention provides a method for promoting desulfuration of an electron beam refined high-temperature alloy. The method comprises the following steps: S1, pre-treatment of a high-temperature alloy raw material; and S2, electron beam refining and purification of the nickel-based high-temperature alloy to obtain a high purity FGH4096 high-temperature alloy cast ingot. The high-temperature alloy is desulfurated by means of electron beam refining, and a degassing reaction of S impurity element is intensified by means of characteristics of high electron beam refining vacuum degree and high temperature in a beam spot area. According to a characteristic that a water cooling copper crucible is free of pollution in the refining process, problems of erosion of a refractory matter of a conventional process crucible such as VIM and the like are solved. The problem of ultra-purification of a high-temperature alloy base metal is solved by means of density difference of occluded foreign substances and melt and a special inducible solidification mechanism of the electron beams in promoting migration and enrichment of the occluded foreign substances.

The invention provides whole-growing-season phosphorus and potassium compound fertilizer for tobaccos. The whole-growing-season phosphorus and potassium compound fertilizer is prepared from an organiccomponent prepared from feather cockscomb biomass carbon, composted feather cockscomb-rapeseed cake fertilizer, tobacco stem biomass carbon, phosphorus-dissolving bacteria, potassium-dissolving bacteria and attapulgite, and three inorganic components according to the mass ratio of 1 to (1 to 3), wherein the mass ratio of the inorganic component 1 to the inorganic component 2 to the inorganic component 3 is 1 to (1 to 2) to (1 to 2); the inorganic component 1 is prepared from silicon-phosphorus fertilizer, potassium sulfate, phosphorus humate and the attapulgite; the inorganic component 2 is prepared from ammonium polyphosphate, ammonium nitrate, medical stones and the attapulgite; the inorganic component 3 is prepared from potassium humate, phosphorus humate and the attapulgite. Accordingto the whole-growing-season phosphorus and potassium compound fertilizer for the tobaccos, the problems that the utilization rate of phosphorus fertilizer and potassium fertilizer for baking the tobaccos is low, phosphorus is enriched in soil and the potassium content of tobacco leaves is low are solved.

The invention discloses a method and a system for treating crude trichlorosilane. The method comprises the following steps: (1) carrying out air stripping treatment on crude trichlorosilane to obtain a mixture; (2) purifying the mixture for the first time to obtain a first top gas and a first bottom liquid; (3) purifying the first top gas for the second time to obtain a second top gas and a second bottom liquid; (4) mixing the first bottom liquid with the second bottom liquid to obtain a mixed material; (5) disproportionating the mixed material in the presence of supported ion exchange resin to obtain a disproportionated product; (6) purifying the disproportionated product for the third time to obtain a third bottom liquid; and (7) purifying the second bottom liquid and the third bottom liquid for the fourth time to obtain trichlorosilane and a fourth bottom liquid and returning the fourth bottom liquid for purification for the first time. By adopting the method, the problem of the enrichment of dichlorosilane and silicon tetrachloride in crude trichlorosilane can be effectively solved and the quality of trichlorosilane can be significantly improved.

The invention provides an ammonium removal process of ammonium-containing waste water. The ammonium removal process comprises the following steps: drying the ammonium-containing waste water by distillation to obtain a mixture of ammonium salt and sodium salt; slowly mixing the mixture powder of the ammonium salt and sodium salt and alkali powder, absorbing the gas released during the reaction by virtue of acid to obtain an ammonium salt solution; heating and calcining a solid product obtained in the reaction, absorbing the gas released during the calcining by virtue of acid to obtain an ammonium acid solution, and crushing a calcined product to obtain a sodium salt. The ammonium salt solution obtained in the reaction is pure and can be returned to a vanadium deposition step to be used as an ammonium salt; and the sodium salt can be sold as a product. By adopting the ammonium removal process of the ammonium-containing waste water, the problem of impurity concentration in the ammonium recycling process can be solved, and the treatment cost of the ammonium-containing waste water can be effectively reduced.

The invention discloses a device for preparing trichlorosilane. The device comprises a rectifying tower, a silicon tetrachloride discharge pipe arranged at the bottom of the rectifying tower and a silicon tetrachloride discharge pipe arranged on the rectifying tower, a fixed bed reactor connected with the silicon tetrachloride discharge pipe, a mixing pipe provided with a static mixer, a trichlorosilane discharge pipe arranged in the middle position of the rectifying tower and an impurity outflow pipe arranged at the top position of the rectifying tower, wherein the fixed bed reactor is also connected to a dichlorosilane feed pipe, and the silicon tetrachloride discharge pipe and dichlorosilane feed pipe are subjected to cooperation by the mixing pipe; the discharge outlet of the fixed bed reactor is connected to the upper part of the rectifying tower by a synthesis gas pipe, and the impurity outflow pipe is connected to the reflux tank of the rectifying tower. By virtue of two devices, dichlorosilane and silicon tetrachloride as byproducts in the improved Siemens production process are converted into trichlorosilane, the utilization of raw materials is improved and the problem of enrichment of dichlorosilane and silicon tetrachloride is solved.

The invention discloses a VOCs collecting and treating device. The VOCs collecting and treating device comprises a VOCs catcher, wherein the VOCs catcher comprises a main machine frame, an auxiliary machine frame, an outer adsorption layer formed by a circle of a plurality of activated carbon plates, and an inner adsorption layer formed by a circle of the plurality of activated carbon plates, theinner adsorption layer is surrounded by the outer adsorption layer, the outer adsorption layer is fixed on the main machine frame, and the inner adsorption layer is fixed on the auxiliary machine frame, the auxiliary machine frame is fixedly connected with the main machine frame, a closed photocatalysis chamber is formed between the inner adsorption layer and the outer adsorption layer, a plurality of ultraviolet lamps are uniformly distributed in the photocatalysis chamber, a circulation cavity is formed in the middle of the inner adsorption layer, the upper end of the main machine frame is provided with an exhaust port communicated with the circulation cavity, a blower is fixedly arranged in the exhaust port, a negative pressure is formed in the circulation cavity through the blower, theouter side of the outer adsorption layer is covered by a filter screen, the filter screen is fixed on the main machine frame. The VOCs collecting and treating device has the advantages of high efficiency, easy installation, multi-function and integration, and low cost and the like.

The application relates to an ionization system, a mass spectrometry analysis system and a sample introduction method thereof. The ionization system includes a laser ablation device, a microwave plasma torch and a connection tube. The laser ablation device is used to carry out laser desorption on a sample to enable the sample to produce a fine-grained aerosol. The microwave plasma torch includes arectangular tube, a tuning piece, a microwave component and an igniter. The rectangular tube is used to introduce the fine-grained aerosol and carrier gas. The microwave component is used to transmitmicrowave energy. The igniter is used to generate a plasma flame torch at an opening end of the microwave plasma torch to enable the fine-grained aerosol and charged particles to be converted into ions. One end of the connection tube is in communication with the laser ablation device, and the other end is in communication with the rectangular tube. The connection tube is used to introduce the fine-grained aerosol output by the laser ablation device and the carrier gas into the rectangular tube. The ionization system, the mass spectrometry analysis system and the sample introduction method thereof provided by the application can solve the problem of complicated sample introduction existing in traditional ionization mass spectrometry analysis technology.

The invention discloses a process for preparing trichlorosilane by utilizing reverse disproportionation reaction. The process is characterized by comprising the following steps: step (1): conveying silicon tetrachloride into a rectifying tower from the bottom of the rectifying tower, pumping out and sufficiently mixing with dichlorosilane in a static mixer after purifying, wherein a mass ratio of the dichlorosilane to the silicon tetrachloride is 1to 10; a step (2): feeding the silicon tetrachloride and the dichlorosilane which are sufficiently mixed in the step (1) into a fixed-bed reactor for reacting; and step (3): conveying a synthesis gas reacting in the fixed-bed reactor in the step (2) into the rectifying tower, wherein trichlorosilane is discharged from the middle position of the rectifying tower. According to the process disclosed by the invention, the raw materials, namely dichlorosilane and silicon tetrachloride with lower value are converted into trichlorosilane with a very high utilization value, so that material utilization rate is effectively increased; meanwhile, a problem that the dichlorosilane and the silicon tetrachloride are enriched is solved.

The invention discloses a production device and a preparation method of organic sodium alcoholate. The production device comprises a kettle reverse rectification device. The method comprises the following steps: adding metallic sodium into the kettle reverse rectification device, then carrying out nitrogen replacement, starting a vacuum device, pumping a reactor to-0.1 MPa, adding organic alcoholinto the reactor, and carrying out a reaction at a certain temperature under a negative pressure condition to obtain an organic sodium alkoxide solution with a certain solid content. According to thepreparation method of organic sodium alcoholate, the boiling point of the organic alcohol is reduced through vacuum rectification, and the distilled organic alcohol flows back to the reaction system again so that direct heat exchange between the material and the backflow material can be promoted, the temperature of the reaction system is reduced, and the problems that the boiling point of the organic alcohol is too high, metal sodium is heated and melted into a spherical shape, the reaction intensity is increased, and the reaction is out of control are well solved.

The invention relates to a black-odor river channel treatment process. The process includes 1), black-odor river channel pretreatment, namely adding a polymer aluminum chloride solution and palladiumcharcoal to channel sewage, pumping the mixture to a sedimentation tank statically after mixing, adding the alkaline polymer aluminum chloride solution and palladium charcoal to a supernatant, pumpingthe mixture to the sedimentation tank statically after mixing, adding a polyacrylamide flocculant aqueous solution and palladium charcoal to clear liquid, pumping the clear liquid to the sedimentation tank statically after even mixing, and collecting flocculate in the sedimentation tank; 2), odor treatment, namely treating the flocculate collected in the step 1), in the presence of air to reach the discharge standard under the condition of heating and pressure; 3), river channel sludge treatment, namely forming the river channel sludge by extrusion to obtain a catalyst support material via heat treatment. The black-odor river channel treatment process has the advantages of high odor removal efficiency, high added value and the like.

The invention relates to a novel process for removing light components in the stock solution of furfural and a special apparatus matching with the same. The novel process comprises the following steps: heating a column bottom to allow the temperature of the column bottom to rise to 100 to 105 DEG C; delivering the stock solution of furfural into a special light component removing column through a feed inlet, maintaining the temperature of the column bottom to be 100 to 105 DEG C, the pressure of the column bottom to be 0.1 to 0.2 kg / cm<2>, tower top temperature to be 65 to 70 DEG C and a reflux ratio to be 1: 20, and cooling a light component removing stock solution to a temperature of 70 to 80 DEG C through two steps. A tower section II at the upper part of the special light component removing column is smaller than a tower section I at the lower part of the special light component removing column; the feed inlet is connected with a stock solution storage tank through a pipeline; a fraction outlet is connected with a condenser through a pipeline; the condenser is connected with the upper end of a liquid separator through a pipeline; the liquid separator is respectively connected with a reflux opening and a storage tank through pipelines; a discharge outlet is sequentially connected with a cooler, a condenser II and a buffer tank through a pipeline. According to the invention, more than 95% of light components in the stock solution of furfural are removed, and total yield of furfural is increased by about 5%.

The invention discloses a method for extracting rubidium, cesium and lithium from sodium chloride slag. The method for extracting rubidium, cesium and lithium from sodium chloride slag comprises the following steps that (1) the sodium chloride slag is dissolved in water to form a solution, hydrochloric acid is added to adjust the pH of the solution to range from 2 to 3, the solution is heated and concentrated, when the concentration liquid level is 1 / 4-1 / 3, filter pressing is carried out on concentration liquid, and filtrate is extracted; (2) sodium hydroxide is added into the filtrate in the step (1), a rubidium-cesium solution with the alkalinity of 0.5-1 mol / L is prepared, and continuous stirring is carried out for 20-40 min by using a stirrer; and (3) the solution treated in the step (2) is added into an extracting agent consisting of t-BAMBP, diethylbenzene and sulfonated kerosene, and stirring is carried out until rubidium and cesium in the solution are not detected. According to the method for extracting rubidium, cesium and lithium from the sodium chloride slag, the problem of enrichment of low-concentration rubidium, cesium and lithium is solved, the problem of recovery of rubidium, cesium and lithium from solid slag is solved, the recovery cost is low, and the production period is short.

The present invention relates to naturally degradable environment friendly halogen-containing disinfectant, and is especially disinfectant of halogeno dialkyl hydantoin aqua and its application. In room temperature, halogeno dialkyl hydantoin, stabilizer, solubilizer and and / or synergist in certain weight proportion are mixed and dissolved in water to form the liquid preparation. The liquid preparation has raised water solubility of halogeno dialkyl hydantoin and excellent disinfecting effect. The liquid preparation may be used in industrial cooling water, industry waste water, air conditioner cooling water and swimming pool water, especially oil field refilling water, as well as daily life.

The invention relates to baffle reaction-rectification equipment and a process for comprehensive utilization of dichlorosilane and silicon tetrachloride. The baffle reaction-rectification equipment comprises a main baffle reaction-rectification tower, an overhead condenser, a bottom reboiler and a bottom material circulating pump. The main reaction-rectification tower is divided into four parts by means of a vertical baffle plate arranged therein: a public rectifying section, a public stripping section, a reaction and pre-separation section and an extraction section, wherein, the reaction and pre-separation section is defined into a B section, a C section, an E section and an F section; the extraction section is defined into a D section and a G section; reaction catalysts are filled in the C section and the E section for reaction and rectification; and other parts are provided with efficient structured packing or a tower plate for rectification and separation. In the invention, trichlorosilane with high application value is prepared by adopting the dichlorosilane and the silicon tetrachloride with lower value, thus improving the application rate of raw materials, and solving the enrichment problem of the dichlorosilane and the silicon tetrachloride. By utilizing the baffle reaction-rectification process, a plurality of towers used in reaction and rectification as well as separation and purification are integrated in one baffle reaction-rectification tower, thus saving equipment investment of the tower, and lowering energy consumption.

The invention discloses a multi-pass gas-liquid phase absorption type trace element collection system and a collection method. In the prior art, the liquid-gas contact reaction time in an impact bottle is short, trace elements are easy to escape, negative deviation is brought to a test result, and the accuracy of the test result is influenced. The system comprises a sampling head (1), one end of a pitot tube (2) is fixed on the sampling head, a differential pressure gauge (4) is mounted at the other end of the pitot tube, the sampling head is connected with an accelerating tube (5) through a connecting pipeline, a heat tracing layer (3) wraps outside the connecting pipeline, the accelerating tube adheres to the wall and extends into a fly ash separator (6) along a tangent line, a separation cylinder (8) is arranged on the fly ash separator, a filter membrane (7) is arranged at the bottom of the separation cylinder, the upper part of the bottom of the separation cylinder is connected with an impact pipe (9) through a connecting pipe, and the impact pipe is arranged in a mixing reactor (17). The invention is used for the multi-pass gas-liquid phase absorption type trace element collection system.

The invention discloses an up-to-standard discharging system of slag-washing water from a thermal power plant based on water balance. The up-to-standard discharging system is provided with a slag washing pool, wherein the output of the slag-washing pool passes through a slag washing pump, a slag pool, a slag discharging pump, an ash yard, a clarifying pool, a softening device, a return-water coagulation and precipitation pool, a clean-water pool and a water return pump in sequence and then returns to the slag-washing pool; another path of the water return pump is directly connected with the water-producing end of a primary reverse-osmosis device, and the other path of the water return pump is connected with the input end of the primary reverse-osmosis device by a return-water filtering device and an ultrafiltration device; the concentrated-water end of the primary reverse-osmosis device is connected with a secondary reverse-osmosis device, the water-producing end of the secondary reverse-osmosis device is connected with the water-producing end of the primary reverse-osmosis device, and the concentrated-water end of the secondary reverse-osmosis device is connected with an evaporation and concentration device which exchanges heat with a steam system.

Design an on-line continuous collection, enrichment and analysis device for aerosol samples. The device combines an impact collector with a thermal desorber. It has small design volume, high sampling efficiency, compact structure, and easy maintenance. It is especially suitable for on-site continuous acquisition and analysis of miniaturized portable instruments (such as: ion mobility spectrometry, IMS). sample.

The invention provides a technical scheme of a furnace end beam structure for a steel rolling heating furnace. The technical scheme is as follows: the furnace end beam structure comprises a furnace end beam steel structure, wherein the furnace end beam steel structure is connected with a furnace top crossbeam by virtue of a furnace end beam hanging structure; a circulating cooling pipe is arranged in the furnace end beam steel structure. The furnace end beam structure is characterized in that the circulating cooling pipe is also connected with a sewage discharge device, a flow monitoring device and a temperature monitoring device; the flow monitoring device and the temperature monitoring device are also connected with a control device; a multi-section heat preservation structure matched with the outer surface of the furnace end beam steel structure is arranged outside the furnace end beam steel structure; the heat preservation structure arranged on the top of the furnace end beam steel structure is connected with a hanging bracket. According to the technical scheme, a series of problems of down-warping of a furnace end beam, failure of refractory materials of the furnace end beam, rich impurities in the furnace end beam and the like in the prior art are solved, so that the overhauling difficulty and construction period are greatly reduced; meanwhile, cooling water in the furnace end beam steel structure can be monitored on line, thus ensuring the operation security of the furnace end beam.

The invention discloses a method for electrochemically oxidizing and degrading mineral surface flotation reagents. The method is to add electrolyte to ore pulp and adjust the ore pulp to acidity, then place inert cathode and anode electrodes in the ore pulp, and pass through an electric current to carry out electrochemical oxidation and degradation The flotation agent on the surface of the concentrate in the pulp. Based on the differences in the electrochemical behavior of different flotation reagents and the chemical balance principle of the flotation solution, the method uses different intensities of applied currents and different concentrations and types of electrolytes to directly electrolyze the flotation pulp to achieve organic reagents adsorbed on the mineral surface. Directed oxidation desorption and degradation. This method is suitable for sulfide ore and oxidized ore organic chemical flotation system, and the method is simple, selective, and effective. It is useful for solving the problem of excess chemical affecting the enrichment of other useful minerals and eliminating the subsequent It is of great significance to release harmful gases during the drying process and solve the joint connection problem of dressing and smelting.

The invention discloses a method for removing chlorine radicals and sulfate radicals in a zinc hypoxide raw material, which comprises the following steps: A, mixing and reacting raffinate containing chlorine radicals, sulfate radicals, ammonium radicals and a small amount of metal ions with a calcium chloride solution to obtain mixed turbid liquid, and carrying out solid-liquid separation on the mixed turbid liquid to obtain calcium sulfate solid and calcium sulfate supernate; B, drying the calcium sulfate solid to obtain calcium sulfate dihydrate; C, adding lime into the calcium sulfate supernatant through a lime feeding system, and carrying out pre-deamination to obtain a deamination liquid; and D, pumping the deamination liquid into a deamination tower, carrying out steam stripping deamination on the deamination liquid, and collecting obtained ammonia gas through an ammonia gas absorption tower to obtain regenerated ammonia water. The method for removing the chlorine radicals and the sulfate radicals in the zinc hypoxide raw material adopts the structure, is simple in process, short in flow and high in operability, can solve the problem of enrichment of the chlorine radicals and the sulfate radicals in the zinc hypoxide raw material comprehensively recovered by a traditional process, and reduces the production cost.

The invention discloses a sewage treatment device and method for synchronously recovering water and electric energy, belonging to the field of sewage treatment. The method of the present invention comprises the following steps: taking urban sewage as water inlet, using mud-water mixture as feed liquid, entering the feed liquid channel of the membrane module through a peristaltic pump, using brine as a drawing liquid, and entering the drawing liquid of the membrane module through a high-pressure pump aisle. The osmotic pressure difference on both sides of the FO membrane is used to make water flow from the feed liquid side to the draw liquid side. The mixed draw liquid has a higher pressure and drives the turbine to rotate during the outflow process to generate electricity. The diluted draw solution passes through the draw solution recovery system to obtain reuse water, while the concentrated draw solution continues to be used in the FO membrane. The technical design of the invention is scientific and reasonable, and has great significance for expanding the application of the forward osmosis membrane in sewage treatment.

The invention discloses a method and a system for treating crude trichlorosilane. The method comprises the following steps: (1) carrying out air stripping treatment on crude trichlorosilane to obtain a mixture; (2) purifying the mixture for the first time to obtain a first top gas and a first bottom liquid; (3) purifying the first top gas for the second time to obtain a second top gas and a second bottom liquid; (4) mixing the first bottom liquid with the second bottom liquid to obtain a mixed material; (5) disproportionating the mixed material in the presence of supported ion exchange resin to obtain a disproportionated product; (6) purifying the disproportionated product for the third time to obtain a third bottom liquid; and (7) purifying the second bottom liquid and the third bottom liquid for the fourth time to obtain trichlorosilane and a fourth bottom liquid and returning the fourth bottom liquid for purification for the first time. By adopting the method, the problem of the enrichment of dichlorosilane and silicon tetrachloride in crude trichlorosilane can be effectively solved and the quality of trichlorosilane can be significantly improved.