37 results about "Potassium chlorate" patented technology

The application provides a tantalum-based alloy and a preparation method thereof. The preparation method of the tantalum-based alloy comprises the following steps: sequentially laying a first mixed material, a second mixed material and magnesium chips in a reaction crucible in a top-down direction, igniting the reaction crucible to generate an aluminothermic reduction reaction, and then sequentially performing a temperature reduction treatment and a surface finishing treatment to obtain the tantalum-based alloy. The first mixed material comprises aluminum particles, tantalum pentoxide, titanium oxide, potassium chlorate and aluminum fluoride. The second mixed material comprises aluminum particles, tantalum pentoxide, titanium oxide, potassium chlorate, aluminum fluoride and calcium fluoride. By adopting double dosing and covering the magnesium chips with the upper material, the application improves the ignition efficiency, significantly improves the material loss caused by the slow ignition speed and insufficient ignition of the material in the traditional off-oven method, and introduces a titanium source to form an AlTaTi compound, thereby significantly enhancing the alloy uniformity.

The invention discloses a boiler deashing and decoking agent, and belongs to the field of boiler deashing and decoking. Comprising the following substances in parts by weight: 15-20 parts of sodium carbonate, 5-10 parts of sodium sulfate, 20-25 parts of potassium hydroxide, 12-16 parts of 8-hydroxyquinoline sulfate, 10-15 parts of modified nano silicon dioxide, 1-2 parts of polyvinylpyrrolidone, 3-5 parts of potassium chlorate, 2-6 parts of sodium lignin sulfonate, 3-5 parts of polyoxypropylene triol, 2-4 parts of an ethyl acrylate-acrylonitrile copolymer and 20-30 parts of modified calcium carbonate. The modified nano silicon dioxide can be uniformly dispersed in the medicament by virtue of nano-scale particle size and surface modification treatment, so that the contact area with deposited ash and coke blocks is increased, and the removal efficiency is improved; the polyvinylpyrrolidone is helpful for keeping the components in a good dispersion state in the use process, and agglomeration is avoided; and through the synergistic effect of all the raw materials, a good ash removal and decoking effect can be achieved, so that normal use of the boiler is ensured.

This invention provides a method for producing high-purity aluminum-niobium-tantalum master alloys and co-producing ammonium fluoride, belonging to the fields of metallic materials and inorganic chemicals. The invention involves mixing fluoroniobic acid, fluorotantalic acid, and ammonia water for a precipitation reaction to obtain a precipitate and an ammonium fluoride solution. The ammonium fluoride solution is then concentrated, cooled for crystallization, dehydrated, and dried sequentially to obtain ammonium fluoride. The precipitate is then dried and oxidized and calcined sequentially to obtain an oxide. The oxide, aluminum powder, potassium chlorate, and calcium fluoride are mixed and subjected to a vacuum aluminothermic reaction to obtain the high-purity aluminum-niobium-tantalum master alloy. This invention, considering both broadening the range of raw material selection and optimizing the production process, reacts fluoroniobic acid, fluorotantalic acid, and ammonia water to produce niobium hydroxide and tantalum hydroxide precipitates, which are then oxidized and calcined to form niobium and tantalum oxides. The high-purity aluminum-niobium-tantalum alloy is then prepared using a vacuum aluminothermic reaction. Simultaneously, ammonium fluoride can be co-produced, resulting in high raw material utilization.

The invention discloses an efficient flame-retardant fire extinguishing agent for rapidly extinguishing a lithium battery fire and a preparation formula, and relates to the technical field of fire fighting. The fire extinguishing agent is composed of a liquid-phase component and a solid-phase component, wherein the liquid-phase component comprises ethylene glycol, triethanolamine, fluoroalkyl betaine, sodium dodecyl benzene sulfonate, a phosphate flame retardant, an orange peel extracting solution and purified water; the solid-phase component comprises dodecyl sulfate, ammonium phosphate, potassium perchlorate, sodium carboxymethyl cellulose, polyacrylamide, benzotriazole and the like. The method comprises the following steps: drying and activating solid-phase components after graded crushing, and stirring in a nitrogen atmosphere; carrying out segmented treatment on liquid-phase components, and carrying out ultrasonic emulsification on an orange peel extracting solution; and after solid-liquid mixing, carrying out vacuum defoaming, high-speed shearing dispersion and homogenization treatment. According to the lithium battery fire extinguishing agent, component particle sizes with different dissolution rates are matched through graded crushing, nanoscale dispersion is achieved through ultrasonic emulsification, the bubble residual rate is reduced through vacuum defoaming, and the problems that a traditional lithium battery fire extinguishing agent is low in insulativity, low in cooling efficiency and insufficient in flame retardant efficiency are solved.

The invention relates to an energetic material based on a urea-potassium perchlorate eutectic system and a preparation method of the energetic material, and belongs to the technical field of safe and environment-friendly energetic materials. The energetic material based on the urea-potassium perchlorate eutectic system is prepared from the following components in parts by weight: 18 to 35 parts of high-molecular fluorine polymer with the particle size of 50 to 400 microns; 15-40 parts of active metal powder with a particle size of 10-75 [mu] m; 10-30 parts of urea with a particle size of 20-100 [mu] m; 12-35 parts of potassium perchlorate with a particle size of 10-120 [mu] m; 0.5 to 3 parts of a silane coupling agent; 0.5 to 5 parts of a binder; 5 to 10 parts of nano silicon dioxide; 0.5-3 parts of a stabilizer; the urea and the potassium perchlorate are used for constructing a urea-potassium perchlorate eutectic system. According to the energetic material, through co-crystallization treatment of urea and potassium perchlorate, the synergistic effect of an oxidizing agent and a gas generating agent is optimized, and then the problems that a traditional energetic material for emission is large in pollution and poor in safety are solved.

This invention provides a potassium perchlorate temperature-controlled stirrer, relating to the field of chemical engineering technology. It includes a housing, with a fixed plate fixedly connected to the inner wall of the housing. A motor is fixedly connected to the outer wall of the top of the housing, and a drive rod is fixedly connected to the drive end of the motor. The outer wall of the drive rod is rotatably connected to the inner wall of the housing. This invention employs multiple sets of bevel gears and stirring blades, allowing a single motor to simultaneously drive the stirring blades and stirring rod to rotate in opposite directions. This enables the two parts of the device to stir the solution in reverse, thereby accelerating the stirring rate. Furthermore, the stirring rod is hollow and equipped with an air jet structure, allowing for air jetting into the solution during stirring, further accelerating the reaction rate. Additionally, the stirring blades are adjustable, allowing for changes in their lateral area to increase the stirring range. This provides better stirring results for different stirring conditions, enhancing its practicality.

The utility model relates to cable technical field discloses a kind of high-strength overhead cable, including protective layer, the inner wall of protective layer is fixedly connected with reinforcing layer, the inner wall of reinforcing layer is fixedly connected with filling layer, the inner wall of filling layer is fixedly connected with shielding layer, the surface of shielding layer is provided with fireproof assembly, the inner wall of shielding layer is fixedly connected with insulating layer, the inner wall of insulating layer is fixedly connected with conductor.The fireproof assembly includes protective sleeve, the inner wall of protective sleeve is fixedly connected with isolation frame.The utility model is by using in cable interior setting fireproof assembly and in the design of fire, interior's expanded graphite extrusion protective sleeve to make potassium chlorate powder and sulfur powder mix and carry out reaction to fire point to extinguish, realize when cable fire can automatically control the purpose of fire, prevent fire spread to other areas and cause greater economic loss, to further improve the practicality of cable.

The utility model relates to the potassium perchlorate precipitation field especially relates to a needle type potassium perchlorate precipitation filtering device. Including the precipitation box, first cooling precipitation mesh plate and second cooling precipitation mesh plate, the precipitation box main part is square box structure, the inside of precipitation box is vertically arranged with a plurality of first cooling precipitation mesh plate and second cooling precipitation mesh plate, first cooling precipitation mesh plate and second cooling precipitation mesh plate level from one side first insertion port and second insertion port insert, first cooling precipitation mesh plate and second cooling precipitation mesh plate staggered arrangement, the top middle part of precipitation box is provided with liquid inlet. Through the refrigeration of refrigerating machine to the precipitation box, makes inside keep a temperature that can fast precipitate, the structure of first cooling precipitation mesh plate and second cooling precipitation mesh plate can make solution can quickly spread, thereby make the precipitation effect better, first cooling precipitation mesh plate and second cooling precipitation mesh plate can be quickly replaced after the precipitation is complete.

This invention relates to the field of metallic materials technology, specifically to a method for producing an aluminum-tungsten-tantalum ternary master alloy. The method involves mixing tantalum pentoxide, aluminum powder, and potassium chlorate, placing the mixture in a molten pool, igniting it with a magnesium strip, and cooling it to obtain an aluminum-tantalum alloy ingot. After removing the surface alumina from the ingot, the ingot is machined into chips in a glove box for later use. Tungsten trioxide, aluminum powder, and the chipped aluminum-tantalum alloy are then mixed and placed in a vacuum aluminothermic furnace. The furnace is closed, a vacuum is created, and a mixture of magnesium and potassium permanganate is sprayed in. The mixture is ignited to initiate a vacuum aluminothermic reaction. After the reaction occurs, the vacuum level in the furnace is increased, and the furnace is cooled. The furnace is then opened, and the slag is removed to obtain the aluminum-tungsten-tantalum alloy ingot. This invention combines metallothermic reduction with vacuum aluminothermic processes to prepare the aluminum-tungsten-tantalum ternary alloy, producing an aluminum-tungsten-tantalum alloy with high homogeneity and low gaseous impurities. This solves the problems of high melting point, high density, and high gaseous impurity content in traditional aluminothermic reaction production methods.

The utility model relates to anti-caking stirring equipment in the drying process of potassium perchlorate, and belongs to the technical field of chemical equipment, the anti-caking stirring equipment can fully stir the potassium perchlorate and prevent the potassium perchlorate from caking in the drying process to a certain extent, and the comprehensive practicability is good. The mounting box is detachably mounted at the bottom of the stirring tank; the three supporting discs are fixedly welded to the bottom of the mounting box; the driving motor is detachably mounted in the mounting box, and the output end of the driving motor extends into the stirring tank through an output hole formed in the stirring tank and is fixedly welded with a stirring shaft; the stirring cover is slidably connected to the end, away from the mounting box, of the stirring tank; the plurality of stirring blades are fixedly welded on the stirring shaft, the stirring blades are uniformly arranged in three layers, the included angles between each layer of stirring blades and the horizontal plane are respectively 20 degrees, 40 degrees and 60 degrees, and a pneumatic vibrator is fixedly mounted at one end, far away from the stirring shaft, of each stirring blade.

The utility model provides a kind of potassium perchlorate material conveyor, it is related to conveyor technical field, including base and conveying pipe.The utility model drives second sprocket to rotate by starting first motor, second sprocket rotation will drive second shaft to rotate inside conveying pipe, second shaft rotation will drive helical conveying piece to rotate, helical conveying piece rotation will spiral convey the potassium perchlorate material in conveying pipe to discharge pipe, simultaneously, second sprocket is connected with first sprocket by chain, the rotation of second sprocket will drive chain transmission, and then make first sprocket rotate, first sprocket is fixedly installed on first shaft, so first shaft will rotate with the rotation of first sprocket, the broken rod installed on first shaft will also rotate, when material is conveyed to discharge pipe by helical conveying piece, rotating broken rod can disperse material, avoid because of extrusion, friction and other factors in conveying process cause material to gather and form larger particle.

The utility model discloses potassium perchlorate smashing and screening integrated equipment, and relates to the technical field of potassium perchlorate production equipment, the potassium perchlorate smashing and screening integrated equipment comprises a smashing mechanism and a screening mechanism, the bottom of the smashing mechanism and the top of the screening mechanism are fixedly installed, in the potassium perchlorate smashing and screening integrated equipment, a negative pressure pump conducts negative pressure operation on the interior of a machine body through a negative pressure pipe; the inside of the machine body is in a certain negative pressure environment, external air is difficult to enter the machine body, meanwhile, in the crushing process, a ventilator pumps dust-containing air in the machine body to dust removal equipment through a pipeline, and through the mode that a negative pressure pump and the ventilator are combined, the diffusion range of dust can be controlled, and the safety of the equipment is improved; in the crushing process, the pump body conveys low-temperature cooling liquid in the circulating cooling box into the spiral cooling pipe, the cooling liquid spirally flows upwards through the spiral cooling pipe, heat generated in the crushing process is taken away in time, the situation that the temperature is too high due to heat accumulation is avoided, and the possibility of accidents such as explosion caused by high temperature is reduced.

This fire extinguishing material includes a fire extinguishing agent layer containing a fire extinguishing agent. This fire extinguishing agent contains: a radical generating agent containing an organic potassium salt; and an oxidizing agent containing a potassium salt. The abundance ratio of potassium on the surface of the fire extinguishing material is 36% or more. The potassium salt may be potassium chlorate. The fire extinguishing agent layer may further contain a binder resin. The fire extinguishing material may further include a base material.

A method for preparation of a fire-extinguishing sheet including a fire-extinguishing agent and binding agent, wherein the fire-extinguishing agent is capable of generating a fire-extinguishing component by thermal decomposition upon reaching a prescribed temperature, the fire-extinguishing agent comprises tripotassium citrate and potassium chlorate, and the binding agent comprises polyvinyl butyral. the method includes the steps of dissolving the binding agent into a solvent to obtain a solution of the binding agent, mixing tripotassium citrate and potassium chlorate in a solvent and milling the mixture to obtain a fire-extinguishing agent slurry, mixing the solution of the binding agent and the fire-extinguishing agent slurry and milling the mixture to obtain a coating material, coating the coating material on a sheet and drying the coating material on the sheet and optionally cutting the sheet.

The method belongs to the field of titanium alloy, and particularly relates to a titanium-aluminum alloy and a preparation method thereof. The method comprises the following steps: uniformly mixing titanium oxide, a reducing agent and in-situ slagging agent (aluminum-calcium alloy particles), a slagging agent and potassium chlorate in a mass ratio of 1:(0.92-1.69):(0-0.78):(0.2-0.68) to obtain a mixture; initiating an in-situ composite thermal reduction reaction by taking a part of the mixture to obtain a high-temperature molten pool, the upper layer of the molten pool being a reduction slag and the lower layer being a titanium-aluminum alloy melt; then continuously and uniformly adding the remaining material into the high-temperature molten pool after being pressed into balls to react, so that the temperature of the high-temperature molten pool is maintained at 1400-1600 DEG C; and separating the slag and the gold while the composite thermal reduction reaction is being carried out, until the reaction is completed, without refining, to directly obtain the titanium-aluminum alloy. The method does not need secondary refining, and the titanium-aluminum alloy ingot can be obtained after cooling and slag removal, so that the production process can be effectively shortened, the synthesis cost can be reduced, and the product quality is relatively high.

The application provides a method for deeply removing sulfides from fuel gas, comprising the following steps: (1) removing hydrogen sulfide gas by an organic alcohol amine absorbent; (2) contacting and reacting the fuel gas after removal of hydrogen sulfide gas with an oxidizing solvent to remove methyl mercaptan, dimethyl sulfide and residual hydrogen sulfide, the oxidizing solvent comprising 1-10% of an organic alcohol amine, 0.5-20% of an organic solvent, 2-38% of an oxidizing agent, 0.2-1% of an inorganic salt, and the balance of water, the organic solvent being at least one selected from the group consisting of tributyl phosphate, dimethylformamide, N-methyl pyrrolidone and polyethylene glycol dimethyl ether; the oxidizing agent being at least one selected from the group consisting of sodium hypochlorite, sodium chlorate, potassium hypochlorite, potassium chlorate, hydrogen peroxide and potassium permanganate; the inorganic salt being sodium carbonate and / or potassium carbonate; (3) adsorbing the fuel gas after removal of hydrogen sulfide, methyl mercaptan and dimethyl sulfide by an adsorbent to remove carbonyl sulfur and carbon disulfide.

The invention discloses a production system and method of calcium iodate, and belongs to the technical field of chemical synthesis and separation. The production system of the calcium iodate comprises a reaction kettle, a stirrer, a neutralization tank, a synthesis tank, a filter, a dryer and a crusher. The production method of the calcium iodate comprises the following steps: 1, producing potassium hydrogen iodate from potassium chlorate and iodine, 2, neutralizing the potassium hydrogen iodate with potassium hydroxide to produce potassium iodate, 3, reacting the potassium iodate with calcium chloride to produce a calcium iodate suspension, and finally, filtering and drying to obtain potassium iodate monohydrate. According to the method, a chlorine oxidation method, a hydrogen peroxide oxidation method and an electrochemical oxidation method are not needed, the second step and the third step can be carried out under normal pressure without heating except for heating for producing the potassium hydrogen iodate, and special equipment is not needed. No three wastes are discharged in the whole production process, and meanwhile, a byproduct potassium chloride can be produced.

The invention relates to the field of inorganic materials, in particular to potassium perchlorate and application in safety airbags, and the potassium perchlorate comprises a potassium perchlorate core body and a protective layer coating the surface of the potassium perchlorate core body; the preparation method of the potassium perchlorate comprises the following steps: dispersing a potassium perchlorate core body in a solvent containing an organic ligand, enabling the organic ligand to be adsorbed on the surface of the potassium perchlorate to form an induction layer, then adding the induction layer into a growth solution containing metal ions, enabling a metal organic framework crystal to grow on the surface of the potassium perchlorate to form a protective layer, and finally obtaining the potassium perchlorate. The prepared potassium perchlorate has extremely low moisture absorption rate and extremely high friction safety, in addition, possibly, transition metal ions in a protective layer have catalytic activity, but the burning speed is increased, and the potassium perchlorate can be applied to safety airbags of automobiles.

The application relates to the field of pyrotechnic smokes and fire agents, and discloses a general high-energy ignition agent formula, which comprises a burning agent, an oxidizing agent, a catalyst and a binder, the burning agent is Al powder and Mg powder, the oxidizing agent is KClO4, Ba(NO3)2 and Fe3O4, the burning catalyst is potassium chlorate, and the binder is alcohol-soluble phenolic resin. The Al powder and the Mg powder are used as the burning agent, the KClO4, the Ba(NO3)2 and the Fe3O4 are used as the oxidizing agent, the potassium chlorate is used as the burning catalyst, and the phenolic resin is used as the binder, so that the problems of low energy level, low burning temperature, poor ignition capacity and easy moisture absorption of the existing ignition agent are solved.

The application provides an aluminum-molybdenum-chromium intermediate alloy and a preparation method thereof, and the preparation method comprises the following steps: (1) fluidizing roasting molybdenum disulfide and chromium sulfide, and obtaining molybdenum trioxide and chromium oxide after cooling; (2) mixing aluminum powder, potassium chlorate and the molybdenum trioxide and the chromium oxide obtained in the step (1), and then performing vacuum aluminothermic reduction smelting, cooling and refining to obtain the aluminum-molybdenum-chromium intermediate alloy. The preparation method provided by the application utilizes the heat released by the fluidizing roasting of the metal sulfide to dry the aluminum powder and the potassium chlorate, so that the drying process is shortened and the continuous production is facilitated; the vacuum aluminothermic method and the electron beam furnace refining method are adopted to improve the uniformity of the intermediate alloy, reduce the impurity content in the intermediate alloy and facilitate the control of the main component and the impurity content in the TC6, TC17 and TC18 and other grades of titanium alloy.

The invention belongs to the technical field of potassium perchlorate recovery, and particularly relates to a device and process for recovering potassium perchlorate from potassium perchlorate waste brine, the device comprises an evaporation tank, a high-temperature evaporation assembly is installed at the top of the evaporation tank, and a baffle, a transmission assembly and a concentration testing assembly are installed in the evaporation tank. When the concentration of potassium perchlorate in mother liquor needs to be measured, an air cylinder drives a test board to move downwards through a push rod, the test board drives a push-pull rod to move downwards through a bottom plate, and the mother liquor in an evaporation tank enters a cooling cylinder by rotating a first rotating disc; after a certain amount of mother liquor enters the cooling cylinder, the first turntable blocks the first base disc, the liquid cooling radiator cools the mother liquor in the cooling cylinder, and after the temperature is reduced to normal temperature, the push-pull rod continues to drive the second base disc and the second turntable to move, and the mother liquor in the cooling cylinder enters the test tube through the second turntable and the second base disc; the concentration of potassium perchlorate in the mother liquor is tested through the detector, so that the thermal drift of the detector is avoided while the concentration calculation precision of the detector is improved.

The utility model relates to the technical field of potassium perchlorate processing equipment, in particular to drying equipment for fast feeding of potassium perchlorate, which comprises a base, the inner wall of the base is fixedly connected with the outer wall of the bottom of a drying part, and the top of the drying part is fixedly connected with the bottom of a pretreatment part. The inner wall of the top of the pretreatment part is rotationally connected with the outer wall of the mixing part, the pretreatment barrel can be used for pretreating wet potassium perchlorate, the treated potassium perchlorate is directly discharged into the drying part through the feeding pipe, and the residence time of the materials in the conveying process is shortened, so that the production continuity and efficiency are ensured; meanwhile, wet potassium perchlorate can be fully mixed in the pretreatment barrel, a good foundation is provided for the subsequent drying process, due to the design of a water storage cavity and a heat exchange pipe, drying high-temperature gas is used for preheating materials, the equipment can conduct pretreatment while rapid feeding is achieved, the drying efficiency and the product quality are improved, and energy is saved.

The invention discloses a liquid gas energy rock breaking device energy increasing and transduction component which comprises a shell, carbon powder is arranged in the shell, an ignition bridge wire is arranged in the carbon powder, a pre-combustion enhancement layer is sprayed on the surface of the ignition bridge wire, the pre-combustion enhancement layer comprises potassium perchlorate and phenolic resin, and the mass ratio of the potassium perchlorate to the phenolic resin is 9: 1. The ignition bridge wire is led out of the shell through an ignition lead. The porosity of the carbon powder is greatly reduced through compaction treatment, the problems of caking and moisture absorption in a low-temperature (-100 DEG C or below) liquid gas environment are solved, the chemical property stability is improved by 60% or above compared with loose carbon powder, the ignition activity can still be kept under the extreme impact working condition, and the pain point that a traditional material is prone to failure is solved.

A process for synthesizing the compound 5,7-diiodo-1-oxaspiro[2,5]octa-4,7-dien-6-one. This process for synthesizing the compound 5,7-diiodo-1-oxaspiro[2,5]octa-4,7-dien-6-one includes an oxidation reaction of 4-hydroxy-3,5-diiodobenzyl alcohol with a hypochlorite oxidant, in particular selected from sodium, calcium and potassium hypochlorite. This process enables a significant improvement in yield in a simple and inexpensive way.

This invention discloses a pond bottom improvement disinfectant, comprising: 0.01%-13% potassium chlorate, 0.01%-10% sulfur dioxide, 0.01%-5% hydrogen peroxide, 0.01%-7% urea, 0.01%-4% isopropanol, 0.01%-6% ascorbic acid, and the remainder being deionized water. The preparation process involves dissolving the potassium chlorate solution in deionized water, shaking it at 30-50°C for 20-40 minutes, and then adding the other agents in different proportions to the solution and mixing thoroughly. The beneficial effects of this invention are: strong oxidizing function, regulating the aquatic ecological environment; normal use on rainy days without any irritation or harm to aquatic organisms; no need for pond cleaning with long-term use; rapid and significant effect on bottom sediment deterioration, blackening, foul odor, and muddy skin in the water; effectively eliminating pond bottom compaction, loosening the pond bottom, loosening the soil, and removing toxic and harmful substances; and improved survival rate and disease resistance with long-term use.

The present application belongs to the field of pearl processing, and relates to a pearl bleaching method based on phase transfer catalytic oxidation. Pearl grains are soaked in a potassium chlorate aqueous solution, cleaned, air-dried, and oven-dried. The oven-dried pearl grains are soaked in an 18-crown-6 alcohol organic solution, bleached until decolorization is complete, the pearl grains are removed, cleaned after being soaked in clean water, and dried to obtain finished products. The present application pre-permeates the oxidant potassium chlorate without oxidation capacity into the pearl layer and deposits it between the pearl layers, and then uses an organic phase containing crown ether (18-crown-6) to dissolve the potassium chlorate into the organic phase through complexation, so that the chlorate ion produces oxidation, and the pigment is oxidized. The present application can keep the bleaching oxidation degree of the pearl surface layer and the pearl deep layer from being greatly different, avoids the problem that the pearl layer surface is excessively oxidized and the pearl deep layer has insufficient oxidation capacity during the bleaching process, and has the advantages of simple process, simple operation, and good bleaching oxidation effect.

This invention discloses a method for preparing a six-element master alloy of aluminum, titanium, tin, zirconium, molybdenum, and chromium, comprising the following steps: Step S1, thoroughly mixing an appropriate amount of potassium chlorate (a heating agent) with aluminum powder, titanium dioxide, tin dioxide, zirconium dioxide, molybdenum trioxide, chromium trioxide, and a slagging agent; Step S2, loading the uniformly mixed materials into a reaction vessel, performing a compaction treatment, and then igniting the mixture. The resulting molten alloy sinks, while slag used to protect the molten alloy floats to the surface. After cooling, the molten alloy yields an initial aluminum-titanium-tin-zirconium-molybdenum-chromium alloy block; Step S3, the alloy block is refined and crushed to obtain the aluminum-titanium-tin-zirconium-molybdenum-chromium master alloy. The method for preparing the six-element master alloy of aluminum, titanium, tin, zirconium, molybdenum, and chromium provided by this invention achieves a one-time preparation through a self-propagating reaction, resulting in a more uniform alloy composition. This effectively improves the alloying degree of TC17 and Ti1000, prevents component segregation and inclusions, and enhances the performance of titanium alloys such as TC17 and Ti1000. This invention also provides an aluminum-titanium-tin-zirconium-molybdenum-chromium master alloy prepared by the above method.

The invention belongs to the technical field of regeneration of inactivated denitration catalysts, and provides a treatment method of a poisoned SCR denitration catalyst. The method comprises the following steps: soaking a pretreated catalyst in a solution containing an oxidizing agent, and carrying out secondary cleaning to obtain an arsenic-removed catalyst; the oxidizing agent comprises sodium hypochlorite and / or potassium hypochlorite; dipping the arsenic removal catalyst in a solution containing an ion chelating agent, and carrying out third cleaning to obtain an alkaline earth metal removal catalyst; the ion chelating agent comprises ethylene diamine tetraacetic acid disodium salt and / or 1-hydroxyethylidene-1, 1-diphosphonic acid; the alkaline earth metal removal catalyst is soaked in an acidic cleaning solution for fourth cleaning, and harmless treatment is achieved; the acidic cleaning solution comprises mineral acid, a penetrant, an emulsifier and an ion chelating agent. According to the treatment method, arsenic and alkaline earth metal can be efficiently removed, and the specific surface area of the SCR denitration catalyst is increased.

This invention relates to the field of potassium chlorate waste brine recovery technology, and discloses a potassium chlorate waste brine concentration and evaporation device and process, including: an evaporator, a feed pipe connected to the outer wall of the evaporator, an exhaust pipe connected to the top of the evaporator, a waste discharge pipe connected to the bottom of the evaporator, and a heating chamber opened on the outer wall of the evaporator. The invention uses a servo motor to drive a rotating plate to rotate. The rotating plate drives the stirring rod to revolve to achieve basic stirring, and drives the cam to rotate through a transmission component. The cam periodically pushes the stirring rod up and down and causes it to impact and vibrate. At the same time, the drive component links the collision rod and the semi-circular scraper to approach the stirring rod for physical scraping, forming a triple effect of revolving stirring, up-and-down reciprocating vibration and outer wall scraping. This not only avoids local overheating of potassium chlorate waste brine that leads to uneven crystallization, but also breaks the adhesion of crystals and scrapes and loosens the crystals through vibration.

The application provides a high-difficult water anti-impact water purifying agent and a preparation method thereof. The high-difficult water anti-impact water purifying agent is prepared from the following raw materials in parts by mass: sodium metaaluminate 10-15 parts, sodium silicate 5-10 parts, activated carbon 6-9 parts, carboxymethyl cellulose 6-13 parts, polyaluminum ferric chloride 15-20 parts, polyferric sulfate 12-18 parts, potassium chlorate 10-15 parts, polydimethyl diallyl ammonium chloride 5-10 parts, dicyandiamide formaldehyde resin 10-15 parts, and polyacrylamide 2-6 parts. The high-difficult water anti-impact water purifying agent prepared by the application can treat the turbidity and suspended solids of high-turbidity water, low-temperature and low-turbidity water, printing and dyeing wastewater and petrochemical wastewater, and the treated wastewater is colorless, odorless and has obviously reduced CODcr, BOD5, SS suspended solids, color value and bacteria; no secondary pollution is generated in the process of treating the printing and dyeing wastewater; the preparation process is simple, the cost is low, the performance is stable, and the application is convenient to popularize.