21results about "Hypochlorite" patented technology

The invention belongs to the technical field of sodium hypochlorite production, and particularly relates to a method for producing sodium hypochlorite. A method for producing sodium hypochlorite comprises the following steps: adding a compound additive into a sodium hydroxide aqueous solution, and uniformly stirring to obtain a compound alkali-containing raw material solution; respectively introducing the composite alkali-containing raw material solution and chlorine into the micro-channel reactor through a metering pump, and controlling reaction conditions to generate a reaction solution containing sodium hypochlorite; introducing the reaction liquid into a ceramic membrane separation device, separating and removing unreacted solid impurities and by-product salts, and collecting permeate; unreacted sodium hydroxide is recycled and reused; and detecting the permeate liquid to be qualified to obtain a sodium hypochlorite finished product. According to the invention, four key links of compound additive addition, microchannel reaction, ceramic membrane separation and resin recovery are organically linked to form a systematic solution. Aiming at the core pain points of insufficient reaction, more byproducts, raw material waste, equipment corrosion and the like in the traditional process, the product purity is improved through the synergistic effect of all links.

A sodium hypochlorite on-line preparation and on-line dilution fusion feeding system comprises a sodium hypochlorite generator and a feeding lifting pump, at least two transfer storage tanks are connected between a liquid outlet pipe of the sodium hypochlorite generator and a liquid inlet of the feeding lifting pump in parallel through pipelines, at least one of the transfer storage tanks is a dual-purpose storage tank, and the other transfer storage tank is a dual-purpose storage tank. Valves are arranged on a liquid inlet pipe and a liquid outlet pipe of the dual-purpose storage tank; the dual-purpose storage tank is respectively communicated with a liquid outlet of the commercial sodium hypochlorite lifting pump and a liquid inlet of the online proportional dilution device through pipelines with valves; the liquid inlet of the on-line proportional dilution device is also communicated with a soft water inlet pipe; and a liquid outlet of the on-line proportional dilution device is communicated with a liquid outlet pipe of the sodium hypochlorite generator through a pipeline with a valve. According to the system, the preparation, dilution and adding processes of sodium hypochlorite are integrated together, so that the efficiency and the safety are improved, the equipment cost and the occupied area are reduced, and deterioration waste caused by inconvenience in use of high-concentration commodity sodium hypochlorite is avoided.

The utility model relates to the technical field of caustic soda production process devices, in particular to a system for producing caustic soda, which comprises a crude salt preparation unit, a primary brine preparation unit, a secondary refined brine preparation unit, an electrolysis unit, an evaporation unit, a brine preparation unit, a chlorine hydrogen treatment unit and a hydrochloric acid synthesis unit, the caustic soda solutions with different mass concentrations are obtained on the same production line, the solid flaky caustic soda is obtained at the same time, and byproducts such as chlorine, hydrogen, hydrochloric acid, sodium hypochlorite and mirabilite with recycling value are obtained; according to the utility model, the salt dissolving water preparation unit is reasonably and orderly communicated with the other units, and materials such as waste water generated by each unit are recycled, so that the purposes of energy conservation and efficiency improvement are achieved.

The utility model belongs to the technical field of wastewater recovery and treatment, and particularly relates to a treatment system for chlorinated liquid refined washing wastewater. A trichloroethane washing wastewater pipeline is connected with a washing wastewater tank, the washing wastewater tank is connected with a first transmission pump, an outlet of the first transmission pump is divided into two pipelines, one pipeline is connected with an adsorption device, the other pipeline is connected with an inlet of the washing wastewater tank, an outlet of the adsorption device is divided into two pipelines, one pipeline is connected with an oil-water separation tank, and the other pipeline is connected with the inlet of the washing wastewater tank. An oil-phase pipeline and a water-phase pipeline are arranged at the bottom of the oil-water separation tank, the oil-phase pipeline is connected with a washing finished product tank, the water-phase pipeline is connected with a mixing tank, the mixing tank is connected with a sodium hydroxide solution pipeline, the mixing tank is connected with a cooler, the cooler is divided into two paths, one path is connected with the upper part of an absorption tower, and the other path is connected with a sodium hypochlorite finished product tank; the absorption tower bottom is connected with a mixing tank. Through the circulating design of the absorption tower and the mixing tank, the reaction is ensured to be fully carried out, and the yield and the concentration of sodium hypochlorite are improved.

The present disclosure provides compositions, products, kits and methods for producing on demand hypochlorous acid solutions. The present disclosure provides a stable, dry mix product, kit or package that can be employed by an end-user to easily prepare a hypochlorous acid composition with desired features and functionality.

The invention relates to the technical field of resource recycling, in particular to a system for producing an active chlorine disinfectant by using calcium carbide method PVC byproduct hydrochloric acid. The device comprises a hydrochloric acid delivery pipe, a hydrochloric acid storage tank, a first filter, a second filter, a reaction kettle, a sodium chlorate solution storage tank, a dilution kettle, a soft water storage tank, a finished product tank and an absorption tower. Suspended matters and metal ions in the byproduct hydrochloric acid are removed through the multi-stage filtering unit, high-efficiency conversion from low-quality hydrochloric acid to an active chlorine disinfectant is realized by combining an oxidation reaction with precise temperature control and a quantitative dilution process, and the method has the advantages of effectively solving the problem of resource utilization of the byproduct hydrochloric acid of the PVC by the calcium carbide method, reducing the cost and the like. Environmental pollution caused by traditional neutralization treatment is avoided; meanwhile, a safe and economical active chlorine disinfectant production method is provided, dependence on high-purity chlorine is reduced, and the production cost and the safety risk are reduced.

The application provides a kind of sodium hypochlorite automatic continuous production device and method, wherein a kind of sodium hypochlorite automatic continuous production device, including dilute alkali tank, the liquid input end of dilute alkali tank is respectively connected with switchable fresh lye raw material input line and semi-finished product lye raw material input line, the liquid output end of dilute alkali tank is communicated with the liquid storage section of tail gas absorption tower;The liquid output end of tail gas absorption tower is respectively communicated with the top packing layer of tail gas absorption tower, the top packing layer of chlorine absorption tower to form lye circulation line, the top of tail gas absorption tower is provided with tail gas discharge port;The lower packing layer of chlorine absorption tower is communicated with chlorine input line, the top gas outlet of chlorine absorption tower is communicated with the lower packing layer of tail gas absorption tower, the liquid output end of chlorine absorption tower is communicated with the top packing layer of chlorine absorption tower to form lye circulation line, the liquid output end of chlorine absorption tower is communicated with finished product sodium hypochlorite tank.

The utility model discloses a gas-liquid separation device for a sodium hypochlorite generator, which comprises a separation box, and the circumferential surface of the separation box is fixedly connected with a gas inlet pipe. By arranging the separation box, the gas inlet pipe, the rotating shaft, the rotating blades, the water absorption sponge, the liquid level meter, the gas outlet pipe, the one-way valve, the exhaust pipe and the exhaust valve, after sodium hypochlorite is prepared, hydrogen and gas in the generator enter from the gas inlet pipe, and due to the fact that the gas has the initial speed during injection, the gas can hit the rotating blades after being injected into the separation box, so that the rotating shaft rotates; meanwhile, the gas rises in the separation box under the action of the rotating blades and enters the exhaust pipe after being filtered by the water absorption sponge, the pressure in the exhaust pipe is smaller than that in the separation box, gas and liquid can be continuously separated, part of exhausted gas can enter the gas inlet pipe again, and therefore the initial speed of the gas entering the gas inlet pipe is increased; and the device can efficiently separate without an external driving device, so that the separation cost is reduced.

The application discloses a method for removing chlorine from a zinc sulfate solution containing chlorine by using ozone or ozone air, and ozone or ozone air generated by an ozone generator is introduced into a closed pressure-adjustable container containing the zinc sulfate solution containing chlorine, and oxidation dechlorination is carried out in the container at normal temperature or under the natural temperature condition of the solution; low-chlorine zinc sulfate solution and mixed waste gas containing oxygen and chlorine gas are obtained; the mixed waste gas is introduced into saturated limewater or a sodium alkali solution, and chemical products of sodium hypochlorite or calcium hypochlorite are obtained. The application adopts ozone or ozone air to remove chlorine from the zinc sulfate solution containing chlorine, and has the advantages of simple process, high dechlorination efficiency, comprehensive recovery of chemical products of calcium hypochlorite or sodium hypochlorite for reuse or sale, less waste, no sodium chloride accumulation, and good social and economic benefits.

To provide a manufacturing method and a manufacturing apparatus which are industrially useful in manufacturing a halogen oxyacid solution.SOLUTION: A method for manufacturing a halogen oxyacid solution includes mixing an organic alkali solution and halogen while continuously supplying both to a stationary mixer so as to continuously obtain generated halogen oxyacid.SELECTED DRAWING: Figure 1

The utility model relates to the field of sodium chlorate generators, and discloses an automatic control device of a sodium hypochlorite generator, which comprises a tank body, a discharge port is arranged on the outer wall of the tank body close to the bottom end, a filter assembly is arranged on the upper surface of the tank body, the filter assembly comprises an air guide pipe, the air guide pipe is fixedly connected on the upper surface of the tank body, and a water outlet is arranged on the lower surface of the tank body. A pipe cover is inserted into the upper surface of the air guide pipe, a gear motor is installed on the upper surface of the pipe cover, a check block is fixedly connected to the inner wall of the air guide pipe, a supporting ring is inserted into the upper surface, close to the check block, of the inner wall of the air guide pipe, and a filtering sleeve is inserted into the upper surface, close to the supporting ring, of the inner wall of the air guide pipe. The upper surface of the filter sleeve is fixedly connected with a transmission block. According to the utility model, the filtering sleeve is used for replacing a traditional filtering plate, during filtering operation, hydrogen can enter the filtering sleeve from the lower part of the filtering sleeve and then leave from the side surface, and the total area of the side surface of the filtering sleeve is far larger than that of the filtering plate.

The utility model relates to the technical field of dilute brine preparation, in particular to a dilute brine preparation device of a sodium hypochlorite generator. Comprising a water inlet pipe connected with a water softener, the other end of the water softener is connected with a jet device through a first feeding pipe, a spiral blanking machine is connected with the other inlet of the jet device through a second feeding pipe, and the outlet end of the jet device is communicated with a dilute brine tank through a discharging pipe; a spiral blanking machine is adopted for automatically metering and controlling the adding amount of solid salt, a jet device with softened water as a power water source is arranged, the principle that the jet device sprays at a high speed and forms negative pressure is utilized, the salt from the spiral blanking machine is sucked into the jet device, efficiently mixed and dissolved in the jet device and forcibly dissolved again in a secondary mixer, and then the salt is fed into the secondary mixer. And finally, accurate 3-5% dilute brine is obtained.

The utility model relates to a main reaction device for calcium hypochlorite, and belongs to the technical field of chemical preparation. The main reaction kettle body is cylindrical, the top of the main reaction kettle body is connected with a kettle cover through a bolt, a through hole is formed in the middle part of the kettle cover, a stirring rod penetrates through the through hole and extends, the top end of the stirring rod is connected with a gear motor through a coupler, and the gear motor is inversely fixed above the kettle cover through a motor base. A stirring rod is arranged in the kettle cover, a plurality of stirring blades are arranged on a rod body of the stirring rod, a feeding hole is formed in the kettle cover, a sealing cover is mounted at the feeding hole, two symmetrically-distributed air leakage pipes are further arranged on the kettle cover, air leakage holes are formed in the side surfaces of the air leakage pipes, and an air leakage control device is connected to the two air leakage pipes. The device can ensure the preparation safety of the main reaction process of the high test bleaching powder, reduce the danger coefficient of reaction explosion and improve the reaction quality of the high test bleaching powder.

The utility model belongs to the technical field of comprehensive utilization of waste water, and particularly discloses a device for effectively controlling the pH value and available chlorine of sodium hypochlorite waste liquid, which comprises a sodium hypochlorite waste liquid buffer tank, an inlet of the sodium hypochlorite waste liquid buffer tank is communicated with a washing component, and an outlet of the sodium hypochlorite waste liquid buffer tank is communicated with a waste liquid treatment component. The utility model provides a device for effectively controlling the pH value and available chlorine of sodium hypochlorite waste liquid, and by controlling the pH value of the sodium hypochlorite waste liquid, the scaling and blockage of a pipeline in the material conveying process from a waste sodium hypochlorite buffer tank to a degassing tower can be effectively relieved, the scaling and blockage of a waste sodium hypochlorite heater can be relieved, and the service cycle of a matched device can be prolonged; meanwhile, the sodium hypochlorite waste liquid treated by the washing assembly and the sodium hypochlorite waste liquid collecting pool not only can meet the safety requirement for compounding of the sodium hypochlorite waste liquid, but also can be discharged to the G3 membrane system to be treated, and the process index that high-salinity wastewater is conveyed to the G3 membrane system to be treated is met.

A method for producing a haloamine solution with reduced amounts of halogen polyoxyanions comprising (a) on-site generation of a halogen-containing oxidant solution, wherein the halogen-containing oxidant solution contains hypohalite; and (b) reacting on-site the on-site generated halogen-containing oxidant with a nitrogen source, to thereby produce the haloamine solution with reduced amounts of halogen polyoxyanions; wherein the on-site generation comprises reacting at least one halogenated hydantoin compound with water, and wherein the haloamine solution comprises less than 5% by weight of halogen polyoxyanions.

We provide a water treatment method that effectively utilizes hydrogen energy. [Solution] A water treatment method comprising: (1) a step of obtaining sodium hypochlorite and hydrogen from an aqueous sodium chloride solution by electrolysis; (2) a step of disinfecting the water to be treated with the sodium hypochlorite obtained in step (1); (3) a step of obtaining electricity from an internal combustion engine using the hydrogen obtained in step (1) as fuel; and (4) a step of converting the waste heat in step (3) into electricity, wherein at least a portion of the electricity obtained in step (3) and at least a portion of the electricity obtained in step (4) are supplied as electricity to be used in step (1).

The utility model relates to a chlorine-containing tail gas byproduct sodium hypochlorite production device which is characterized in that chlorine-containing tail gas is connected with a gas inlet of a purification tower through a pipeline, a gas phase outlet at the lower part of the purification tower is connected with a gas inlet of a demister through a pipeline, and a gas outlet of the demister is connected with a gas inlet at the lower part of a primary liquid alkali absorption tower through a pipeline; the top of the first-stage liquid alkali absorption tower is connected with a gas inlet in the lower part of the second-stage liquid alkali absorption tower through one pipeline, and the other pipeline is connected with the top of the second-stage liquid alkali circulation tank; and the second-stage liquid alkali circulation tank is connected with the second-stage liquid alkali circulation tank. The device is a device for continuously producing sodium hypochlorite mainly by purifying tail gas containing chlorine and then reacting caustic soda liquid with a certain concentration with chlorine in the absorption device, and can be widely applied to treatment of the tail gas containing chlorine and realize continuous byproduct sodium hypochlorite solution production.

The invention belongs to the technical field of colored hydrometallurgy processes, and particularly discloses a method for increasing the available chlorine content of sodium hypochlorite in a chlorination system cobalt electrodeposition chlorine gas absorption procedure, which comprises the following steps: introducing circulating water into a liquid inlet of a primary absorption tower, introducing chlorine gas into a gas inlet of the primary absorption tower, and introducing chlorine gas into a gas outlet of the primary absorption tower; an absorbent is introduced into a liquid inlet of the five-stage absorption tower, the volume ratio of water to alkali of the absorbent is (1-3): 1, chlorine is mainly subjected to step-by-step alkali absorption, the temperature during absorption is controlled to be 35-40 DEG C through a cooling plate heat exchanger, a generated sodium hypochlorite solution is discharged out of the second-stage absorption tower from a sodium hypochlorite discharge port, and the discharge potential of the sodium hypochlorite solution is controlled to be 450-500 mv; circulating water is introduced into a liquid inlet of the six-stage absorption tower to cool chlorine, generated chlorine water is discharged out of the six-stage absorption tower from a liquid outlet, and chlorine is discharged from a purified tail gas outlet of the six-stage absorption tower after being detected and analyzed to be qualified; the discharge amount of alkaline wastewater is reduced, the production environmental protection risk is reduced, and the available chlorine content of sodium hypochlorite is improved.

This invention relates to a control system for precisely controlling the concentration of sodium hypochlorite produced by a falling film process. The system comprises: a fresh alkali solution input component, a chlorine gas input component, a synthesis component, a detection component, a product buffer and conveying component, a qualified product output component, a non-qualified product circulation component, and a control component. When the product concentration is under normal production conditions, the control component is connected to both the fresh alkali solution input component and the chlorine gas input component to form a ratio control system. When the product concentration is under unqualified conditions, the control component is connected to both the detection component and the chlorine gas input component to form a cascade control system. This invention can reduce overchlorination and precisely control the concentration of sodium hypochlorite. Furthermore, this invention can reduce the frequency of sodium hypochlorite salt buildup and blockage in the detection component, ensuring long-term stable operation of the device.

The present disclosure provides compositions, products, kits, and methods for producing hypochlorous acid solutions as needed. The present disclosure provides stable dry-kneaded products, kits, or packages that can be used by end-users to easily prepare hypochlorous acid compositions having desired characteristics and functionality. Hypochlorous acid is a non-toxic disinfectant, sanitizer, and decontaminant. It is naturally produced by the human immune system to fight infections. Neutrophils, a type of white blood cell, produce hypochlorous acid to kill bacteria, bacterial spores, viruses, and fungi.

The invention discloses a zero-discharge treatment system for coal-to-olefin industrial wastewater. The zero-discharge treatment system comprises a sewage treatment device, a reuse water treatment device, an evaporative crystallization device and a device for preparing acid-base and sodium hypochlorite from sodium chloride, effluent of the sewage treatment device enters the reuse water treatment device, effluent of the reuse water treatment device enters the evaporative crystallization device, and the evaporative crystallization device comprises a sodium chloride evaporative crystallization unit and a sodium sulfate freezing crystallization unit; the device for preparing acid-base and sodium hypochlorite from sodium chloride comprises an acid-base preparation unit and a sodium hypochlorite preparation unit. The problems of COD and hardness removal of a sedimentation tank and a V-shaped filter tank in conventional pretreatment of a membrane system and standard exceeding of wastewater silicon in a conventional chemical precipitation method are solved.