55results about "Petroleum chemical modification" patented technology

The utility model discloses neutralization equipment for chlorinated paraffin production, and relates to the technical field of chlorinated paraffin production. The device comprises a bottom plate, one side of the top of the bottom plate is fixedly connected with a neutralizing box, and the other side of the top of the bottom plate is fixedly connected with a recycling box; a recycling assembly is arranged in the recycling box and comprises storage boxes, the storage boxes are fixed to the two sides of the recycling box, and a transmission motor is fixedly connected to the top of one side of the recycling box. According to the waste gas recycling device, a first reciprocating lead screw can be driven to rotate through work of a transmission motor, then a first threaded sleeve is driven to move, and therefore a collecting plate is driven to move, so that the purpose of recycling substances in waste gas is achieved, and through rotation of the first reciprocating lead screw, a second bevel gear can be driven to rotate through a first bevel gear; and then the second reciprocating lead screw is driven to rotate, so that the stirring device completes reciprocating motion, and the purpose of uniformly mixing reaction substances is achieved.

The invention discloses an unpowered circulating continuous chlorinated paraffin production skid-mounted integrated device which comprises a chlorination reaction tower, a gas-liquid separation mechanism and a cooler, and the chlorination reaction tower comprises at least two chlorination reaction units and a gas-liquid separation unit; a chlorine inlet is formed in the bottom of the chlorination reaction tower, a liquid wax inlet and a reactant outlet are formed between the gas-liquid separation unit and the chlorination reaction unit, a hydrogen chloride outlet is formed in the top of the chlorination reaction tower and connected with an inlet of the gas-liquid separation mechanism, and a gas outlet of the gas-liquid separation mechanism is connected with the tail gas treatment system. The liquid outlet is connected with a bottom reflux inlet of the chlorination reaction tower; a photocatalytic energy source is arranged on the outer side of each chlorination reaction unit, an inlet of the cooler is connected with a reactant circulating outlet on the chlorination reaction tower, and an outlet is connected with a circulating reactant inlet on the chlorination reaction tower. The skid-mounted integrated device disclosed by the invention is convenient to mount, ensures stable operation, can overcome the problem of'black materials' of the reactor, and is beneficial to environmental protection.

The invention provides a synthesis method and application of a sulfuration modified palladium-iron bimetallic material. The method comprises the steps that potassium borohydride and sodium sulfide nonahydrate are dissolved in a solvent, sodium hydroxide is added into a sulfuration solution, the pH of the sulfuration solution is adjusted to be alkaline, and an alkaline solution is obtained. The method comprises the following steps: dropwise adding an alkaline solution into a mixed aqueous solution of FeSO4. 7H2O and sodium tetrachloropalladate at a speed of 10mL / min in a nitrogen atmosphere; and separating the precipitate from the mixed aqueous solution in a magnetic separation manner, and washing the precipitate for three times by using oxygen-free water and absolute ethyl alcohol to obtain the palladium iron sulfide bimetallic particles. Through a one-step reduction method of vulcanization and palladium doping, vulcanization modification and bimetal modification are combined to act on zero-valent iron, the stability of the zero-valent iron is enhanced through vulcanization, meanwhile, the reactivity of the zero-valent iron is improved through addition of bimetal, especially the selectivity to pollutants such as chlorinated paraffin and the reactivity after surface passivation are improved, and the stability of the zero-valent iron is improved. And the reliability and efficiency of the zero-valent iron in organic pollution remediation are greatly improved.

The invention provides a preparation method of chlorinated paraffin 70 with a high softening point, and belongs to the technical field of chlorinated paraffins.The preparation method comprises the steps that S1, mixed wax is provided, and raw materials of the mixed wax are Fischer-Tropsch wax and petrochemical wax; s2, feeding the mixed wax into a reactor, then turning on an ultraviolet lamp in the reactor for irradiation, after liquid chlorine is gasified to form chlorine, feeding chlorine into the reactor, heating and carrying out segmented control reaction; s3, after the reaction is finished, blowing air into the reactor, then washing a reaction product with water, and then adding a compound stabilizer into a crude product obtained by washing with water, so as to obtain chlorinated paraffin 70; the chlorine content of the chlorinated paraffin 70 is not less than 69.5%, the softening point is not less than 98 DEG C, and the acid value is not more than 0.1 mgKOH / g. According to the method, hot chlorination and photo-initiation are combined, so that the chlorine content and the softening point of the product are controllable, the production efficiency is high, the reaction speed is high, the reaction temperature is reduced, the production period is shortened, and the product quality is stable.

The utility model relates to the technical field of reaction kettles, and provides a circulating chlorinated paraffin reaction kettle which comprises a bottom plate, and a circulating mechanism is arranged above the bottom plate. By arranging the circulating mechanism, when chlorinated paraffin is prepared in the reaction kettle, liquid paraffin and chlorine can be stirred by using a stirring rod in a rotating state, the reaction efficiency of the liquid paraffin and the chlorine is improved, and tail gas generated after the reaction of the liquid paraffin and the chlorine enters the storage box to be stored and purified; the residual chlorine in the tail gas can enter the reaction kettle main body again through the connecting pipe and the gas inlet pipe to participate in the reaction, so that the residual chlorine in the tail gas is recycled, the tail gas emission is reduced, the chlorine waste is avoided, and the purpose of reducing the cost is achieved. According to the technical scheme, the problems that chlorine is wasted and the cost is increased due to direct emission since chlorine introduced into the reaction kettle cannot completely react with liquid paraffin in the production process of chlorinated paraffin and chlorine is still remained in tail gas discharged subsequently in the prior art are solved.

The invention relates to the technical field of organic synthesis, and particularly discloses a chlorinated paraffin thermal stable material as well as a preparation method and a use method thereof. The chlorinated paraffin thermal stable material is prepared from 60 to 70 parts of ethylene glycol diglycidyl ether, 15 to 20 parts of phosphite ester, 10 to 15 parts of phosphate ester, 5 to 8 parts of tetramethyltin and 3 to 6 parts of silane modified uracil. By limiting the raw material components and proportion of the chlorinated paraffin thermal stability material, the advantages of chemical structures and action principles of the raw materials are exerted, hydrogen chloride gas can be effectively captured, and further decomposition of chlorinated paraffin is prevented. According to the invention, the silane coupling agent is adopted to organically modify the uracil, so that the compatibility among the raw materials in the thermal stable material is increased, and the uniform dispersion of the uracil nitrogen-containing organic matters in the chlorinated paraffin is improved, thereby better playing the thermal stable effect and having better market application value.

The utility model relates to a continuous production system for chlorinated paraffin. The continuous production system comprises a chlorine supply part, a liquid paraffin supply part, a chlorination reaction part and a tail gas treatment part, the chlorination reaction part comprises a plurality of main chlorination kettles and a plurality of auxiliary chlorination kettles, ultraviolet lamps are arranged in the main chlorination kettles and the auxiliary chlorination kettles, and heat exchangers are connected outside the main chlorination kettles and the auxiliary chlorination kettles; all the main chlorination kettles are arranged in series, and wax oil flows into the next main chlorination kettle from the previous main chlorination kettle in an overflow manner; wax oil flows into the next auxiliary chlorination kettle from the previous auxiliary chlorination kettle in an overflow manner, and the last auxiliary chlorination kettle is connected with the first main chlorination kettle to feed the wax oil; tail gas generated in the main chlorination kettle sequentially enters the previous auxiliary chlorination kettle from the next auxiliary chlorination kettle, and the flowing path of the tail gas is opposite to the flowing path of wax oil. The method has the advantages of high equipment utilization rate, short production period, low cost, high chlorination conversion rate and the like.

The present invention relates to the technical field of wax for coatings, and specifically to a wax composition, wax for coatings, and a preparation method and application thereof. The present invention discloses a wax composition for coatings, the wax composition comprising: cobalt-based refined Fischer-Tropsch wax, cobalt-based hydrogenated Fischer-Tropsch wax, polymer wax, microcrystalline wax, and metal stearate; wherein the cobalt-based hydrogenated Fischer-Tropsch wax is a mixture of cobalt-based hydrogenated isomerized Fischer-Tropsch wax and cobalt-based hydrocracking Fischer-Tropsch wax. The coating wax prepared by using the wax composition of the present invention has good temperature resistance, surface smoothness, wear resistance, bending resistance, dispersibility and peeling resistance. The coating added with the coating wax has good wear resistance, peeling resistance and temperature resistance, and can also be used as an internal and external lubricant for tight instruments working at high temperatures.

The utility model belongs to synthetic chlorinated paraffin technical field especially, it is a kind of chlorinated paraffin catalytic reaction device, it includes device main part and feeding opening, the feeding opening is arranged at the top of device main body, chlorinated paraffin catalytic reaction device further includes: filter cartridge and connecting buckle, the filter cartridge swing joint is in the inner wall of feeding opening, the quantity of connecting buckle is two, two connecting buckles are fixedly connected in the outer wall of filter cartridge symmetrically;Slide, the quantity of slide is two, two slides are symmetrically slidingly connected in the top connecting plate of device main body, the quantity of connecting plate is two, two connecting plates are fixedly connected in the side of two slides mutually close, connecting plate and connecting buckle are adapted;In the utility model, filter cartridge is installed or disassembled by pressing plate driving connecting plate movement, filter cartridge is set in feeding opening, and paraffin raw materials are filtered conveniently, chlorinated paraffin production is facilitated, and good practicality and convenience are possessed.

The invention discloses oxidized paraffin and antirust wax and a preparation method thereof, and relates to the field of paraffin. The antirust wax comprises oxidized paraffin, an emulsifier, an antirust agent and water, and the emulsifier is at least one of sorbitan monooleate, lauryl sodium sulfate and fatty alcohol-polyoxyethylene ether; the antirust agent is at least one of cyclohexylamine stearate, alkenyl succinic acid and alpha-mercaptobenzothiazole; the oxidized paraffin is loaded with a Mn metal element through a carrier. The catalyst loaded with the active component Mn is added in the preparation process of the oxidized paraffin, the acid value and the soap value of the oxidized paraffin are effectively increased, the oxidized paraffin interacts with the specific emulsifier and the antirust agent, the emulsifier does not affect the anti-oxidation protection function of functional components, and meanwhile, the antirust agent and the oxidized paraffin cooperate with each other to achieve the anti-corrosion effect in a synergistic mode; and the antirust capability of metal in a humid and hot environment and an acid-base environment is improved, and the application prospect is expanded.

The chlorinated paraffin preparation system comprises a feeding mechanism, a reaction mechanism and a tail gas treatment mechanism, the reaction mechanism comprises a plurality of main reaction structures connected in series and a plurality of auxiliary reaction structures connected in series, the main reaction mechanism comprises a main reaction kettle, the main reaction kettle is provided with four ultraviolet lamp tubes, and the auxiliary reaction structure comprises an auxiliary reaction kettle. The main reaction kettle is internally provided with four special ultraviolet lamp tubes with the wavelength of 254nm, the auxiliary reaction kettle is internally provided with fluorescent lamp tubes, the feeding mechanism is used for inputting chlorine into the main reaction kettle and inputting liquefied paraffin into the auxiliary reaction kettle, and the tail gas treatment mechanism is used for treating tail gas generated by the reaction mechanisms. The reaction effect of chlorine and paraffin is optimal, and four common 6500k fluorescent tubes are arranged in the side reaction kettle, so that the single-line productivity is increased, the chlorine content of the product is more stable, and the product quality is improved.

This invention belongs to the technical field of paraffin wax production equipment, and relates to an apparatus and method for continuous production of chlorinated paraffin wax using a multi-stage spray tower. The apparatus includes a spray tower body, with a tail gas outlet and a demister at the top. Several reaction sections are located below the tail gas outlet, with a demister at the top of the uppermost reaction section. Each reaction section has a spray device for uniform liquid spraying, a light source for catalysis, and a gas distributor for uniform gas distribution at the bottom. Each reaction section has a heat exchange device and a liquid storage device at the bottom. The reaction sections are connected to each other via external gas-phase and external liquid-phase circulation pipelines. Compared with existing processes, this invention offers a larger mass transfer area between chlorine and paraffin oil, a faster reaction rate, and controllable reaction depth, demonstrating significant potential for industrial application.

The invention relates to a chlorinated paraffin tail gas treatment process, belongs to the technical field of chemical production, and aims to solve the problems of low chlorine recycling rate and limited product quality after byproduct hydrochloric acid gas is absorbed in the prior art. According to the technology, a modified glass membrane separation technology is adopted, chlorine and hydrochloric acid gas in chlorinated paraffin reaction tail gas are efficiently separated, the chlorine obtained through separation can return to a reaction system again to participate in a synthetic reaction of chlorinated paraffin, and the utilization rate of the chlorine is further increased; the hydrochloric acid gas is absorbed by pure water to generate a high-purity hydrochloric acid aqueous solution, other impurities are not contained, and the quality of a hydrochloric acid product is remarkably improved. After the tail gas is treated, the concentration of chlorine gas and hydrochloric acid gas is detected to be less than 5ppm at an exhaust port and reach the emission standard. The method not only realizes cyclic utilization of chlorine gas resources, but also reduces volatilization of hydrochloric acid gas and environmental pollution, has double advantages of economy and environmental protection, and is suitable for the field of tail gas treatment in chlorinated paraffin production.

The utility model relates to the technical field of chemical production, in particular to a circulating chlorinated paraffin reaction kettle. The reaction kettle comprises a reaction kettle body, a feeding port is formed in the top of the reaction kettle body in a penetrating mode, a circulating pump is installed on the outer wall of one side of the reaction kettle body, a cleaning assembly is installed at the bottom of the reaction kettle body, the self-cleaning function of a filter screen is achieved by arranging the cleaning assembly, and a water tank and a water passing pipe provide a cleaning source for the filter screen and convey the cleaning source into a feeding pipe; a flushing space is formed by combining the on-off control of a butterfly valve for controlling fluid and the anti-backflow characteristic of a one-way valve, attachments on the surface of the filter screen are effectively removed, the filtering function of the filter screen is achieved, then the feeding pipe is prevented from being blocked again, cleaning can be completed in time without repeated manual disassembly in the cleaning process, and therefore it is ensured that the filter screen can be put into use rapidly; meanwhile, the water outlet pipe discharges waste materials, so that the occurrence of secondary blockage in the feeding pipe is reduced, and the influence of the use of the device on the reaction efficiency is reduced to the greatest extent.

The utility model relates to the technical field of chlorinated paraffin production, in particular to a single-carbon-chain chlorinated paraffin production device. The device comprises a mounting assembly, the mounting assembly comprises a pair of fixing plates which are arranged at intervals from top to bottom, a preparation tank and a cleaning tank are formed in the fixing plate located on the upper portion, a preparation assembly is arranged in the preparation tank and used for driving paraffin to fully react with chlorine, and a cleaning assembly is arranged in the cleaning tank; according to the single-carbon-chain chlorinated paraffin production device, the preparation assembly is used for driving paraffin to fully react with chlorine, the extraction assembly is used for extracting an obtained chlorinated paraffin crude product into the cleaning assembly, then byproducts in the crude product are washed away through the cleaning assembly, and the discharging assembly and the cleaning assembly are matched with each other, so that the single-carbon-chain chlorinated paraffin is produced. After the chlorinated paraffin crude product is cleaned, the chlorinated paraffin crude product can be automatically separated from water in which hydrochloric acid is dissolved.

The utility model discloses a Fischer-Tropsch wax oxidation device, which relates to the technical field of Fischer-Tropsch wax oxidation and comprises a feeding system, an oxidation reaction system, a gas-liquid separation system, an air conveying system, a tail gas treatment system and a heating system, the problems that a Fischer-Tropsch wax device is complex in structure, difficult to operate, incapable of achieving continuous production, small in device handling capacity, poor in gas-liquid contact effect, low in oxidation efficiency and deep in product color are effectively solved, and the Fischer-Tropsch wax oxidation device is simple in structure, convenient to operate, even in gas-liquid contact, high in oxidation efficiency, light in product color and environmentally friendly.

The invention provides chlorinated paraffin continuous production equipment which comprises a kettle body, the top of the kettle body is shielded by a top cover, a guide cylinder with the bottom of a horn mouth structure is fixed to the center of the kettle body, a material lifting screw is arranged in the guide cylinder and rotationally connected with the top cover at the top, and the top of the guide cylinder is connected with a discharging disc of a reverse horn mouth structure. Round through holes are evenly distributed in the edge of the discharging disc, an air inlet is connected to the outer side of the top cover and communicated with an annular air disc air path in the top cover, and an air outlet pipe extending into the round hole of the discharging disc is arranged on the bottom face of the air disc. Chlorine is guided in by matching with the gas outlet pipe extending into the round hole, and under the action of gravity and tension, the flowing paraffin liquid is gradually closed to wrap the chlorine, so that the contact between the chlorine and the paraffin liquid is enhanced, the reaction speed is increased, the utilization rate of the chlorine is also improved, and the chlorine generator has a good development prospect.

The utility model discloses a chlorinated paraffin reaction device which comprises a fixed plate, a support frame, a pretreatment box body, a first driving motor, a first stirrer, a temperature sensor and a weight sensor, wherein the pretreatment box body is fixedly connected onto the support frame; the first driving motor is fixedly arranged on a first fixed frame; the first stirrer is arranged on a first rotating shaft; solid paraffin raw materials are added into the pretreatment box body, the weight sensor detects the weight of the solid paraffin raw materials, when the weight of the solid paraffin raw materials reaches a preset threshold value of the weight sensor, the buzzer is controlled to sound, and then the first driving motor and the heating pipe are controlled to work; the first stirrer stirs the solid paraffin raw material, so that the solid paraffin raw material can be uniformly heated, the temperature sensor detects the temperature in the pretreatment box body, and when the temperature rises to 80 DEG C, the heating pipe is controlled to carry out constant output, so that the solid paraffin raw material enters a molten state.

The present application relates to the field of computer-aided optimization of chemical process parameters, and particularly relates to a method for optimizing process parameters of a chlorinated paraffin thermal chlorination reaction. A base paraffin raw material is placed in a reactor, a composite free radical regulating system is injected into the reactor, and chlorine gas is introduced for thermal chlorination reaction. The composite free radical regulating system is composed of an organic peroxide and a nitrogen-containing heterocyclic compound. The organic peroxide is decomposed by heat to form primary free radicals at the initial stage of the reaction. The nitrogen-containing heterocyclic compound is temporarily complexed with free radicals in the system at the chain growth stage, and is released from the complex by heat when the concentration of free radicals in the system decreases. The free radical concentration dynamic balance is maintained throughout the thermal chlorination reaction by the system until the target chlorination degree is reached. The present application suppresses the nonlinear fluctuation of local free radical concentration and reduces the distribution deviation of combined chlorine content in the final product.

The invention discloses an unpowered circulating continuous chlorinated paraffin production skid-mounted integrated device, which relates to the technical field of chemical equipment, and adopts the technical scheme that the unpowered circulating continuous chlorinated paraffin production skid-mounted integrated device comprises a chlorination reaction tower, and the chlorination reaction tower comprises two chlorination reaction units and a gas-liquid separation unit which are sequentially connected from bottom to top; a driving rod is arranged in the chlorination reaction tower in a penetrating mode, a gas outlet mechanism is installed at the upper end of the chlorination reaction tower, an upper valve plate is arranged in the gas outlet mechanism, the gas outlet mechanism can be controlled to be opened and closed by lifting the upper valve plate, the upper valve plate is installed at the top of the driving rod, and a gas inlet mechanism is installed at the lower end of the chlorination reaction tower. A lower valve plate is arranged in the gas inlet mechanism, the gas inlet mechanism can be controlled to be opened and closed by lifting the lower valve plate, and the lower valve plate is installed at the bottom of the driving rod. Through the structural arrangement, the gas pressure in the chlorination reaction tower is effectively controlled, the internal pressure intensity is prevented from continuously rising, and potential safety hazards are eliminated.

The invention discloses a chlorinated paraffin production process for improving raw material utilization, belongs to the technical field of chlorinated paraffin production, and comprises the following steps: S1: purchasing, storing, and standby; S2: sedimentation and stratification, storing, and standby; S3: preheating liquid paraffin; S4: waiting for liquid paraffin to be measured; S5: introducing liquid paraffin, turning on fluorescent lamps and cooling water to make the temperature of a chlorination reactor constant, introducing chlorine, carrying out chlorination reaction, checking the relative density and chlorine content of the chlorinated paraffin, and stopping the chlorine when the requirements are met, turning off the fluorescent lamps and cooling water; S6: purifying waste gas, generating hydrochloric acid and oxygen; S7: storing oxygen; S8: storing hydrochloric acid solution; S9: degassing oxygen, and performing waste gas purification on the removed gas; S10: adding a pH regulator and stability; S11: washing, decompression, and dehydration to a water content of ≤2% to obtain a finished product; the invention can ensure that chlorine and liquid paraffin are fully contacted and reacted to generate chlorinated paraffin, avoid the problem of insufficient reaction, and improve the raw material utilization.

The utility model discloses a chlorinated paraffin chlorination reactor with a quantitative function, and relates to the technical field of chlorinated paraffin production. The device comprises a reaction kettle, the top of the reaction kettle is fixedly connected with a bracket, one side of the top of the reaction kettle is fixedly connected with a feeding box, and the other side of the top of the reaction kettle is fixedly connected with a supporting table; a mixing assembly is arranged at the bottom of the support and comprises a motor, and the motor is fixed to the top of the support. The motor drives the rotating rod to rotate, so that the stirring blades at the bottom of the rotating rod are driven to rotate, precipitates at the bottom of the inner cavity of the reaction kettle are stirred, reaction is accelerated, gas is compressed into the gas spraying holes in the surface of the rotating rod through the gas outlet pipe by the compressor, reactants in the reaction kettle are stirred in an airflow stirring mode, and the reaction is accelerated. The influence of heat generated by mechanical stirring friction on reactants is prevented, and a good stirring effect is achieved.

The utility model provides a chlorinated paraffin reaction kettle, which belongs to the technical field of reaction kettles and comprises a kettle body and a connecting unit, and the connecting unit comprises a fixed pipe, a sliding shaft and an ultraviolet lamp. The fixed pipe is positioned outside the kettle body, and one end of the fixed pipe is fixedly connected with the kettle body and communicated with the inside of the kettle body. The sliding shaft is slidably arranged in the fixing pipe in a penetrating mode and provided with a first threading hole penetrating through the sliding shaft in the axial direction of the sliding shaft. The ultraviolet lamp is located in the kettle body, and a power line of the ultraviolet lamp is used for penetrating through the first threading hole. According to the chlorinated paraffin reaction kettle provided by the utility model, the installation operation and wiping of the ultraviolet lamp are carried out outside the kettle body, so that the problem that the installation and wiping of the ultraviolet lamp are relatively inconvenient because the space in the kettle body is limited can be avoided.

The low-temperature catalytic reaction kettle comprises a reaction kettle body, the top of the reaction kettle body is fixedly connected with a water inlet pipe, a liquid wax inlet pipe and a chlorine inlet pipe, the water inlet pipe, the liquid wax inlet pipe and the chlorine inlet pipe are all communicated with the interior of the reaction kettle body, and the upper end of the side wall of the reaction kettle body is fixedly connected with a pressure relief pipe. The pressure relief pipe is communicated with the interior of the reaction kettle body, a pressure relief valve is arranged on the side wall of the pressure relief pipe, the top of the reaction kettle body is rotationally connected with a rotating pipe, and the bottom of the rotating pipe penetrates through the side walls of the top and the bottom of the reaction kettle body. Through mutual cooperation of the water guide pipe, the water suction pump, the stirring pipes, the connecting pipe and other parts, materials can be cooled in the reaction kettle, meanwhile, the materials can be stirred and cooled in the reaction kettle through cooperation of the multiple stirring pipes, the cooling efficiency of the materials is improved, and the production cost is reduced. And the phenomenon that the color is deepened due to material decomposition caused by high temperature is prevented, so that the processing quality of the materials is improved.

The invention discloses a photo-thermal synergistic chlorinated paraffin preparation method, and belongs to the technical field of halogenated paraffins.The preparation method comprises the following steps of raw material refining, chlorination reaction, product refining and tail gas treatment. The method for refining the raw materials comprises the following steps: adding Lewis acid dispersion liquid into paraffin oil, stirring for 10-15 minutes, dehydrating tail gas discharged after primary falling film absorption through anhydrous calcium chloride, enabling the tail gas to be in full contact with the paraffin oil in a bubbling contact manner, controlling the temperature of a system to be 45-55 DEG C, stirring and pretreating for 30-40 minutes, and adjusting the pressure in the pretreatment process to be 0.035-0.045 MPa through the flow of the tail gas; the chlorinated paraffin preparation method optimizes the cyclic utilization of chlorine, improves the utilization rate of chlorine, reduces the chromaticity of a finished product, and improves the quality of the finished product.

A stirring shaft of a reaction kettle of the stabilizer adding device is of a hollow structure, a guide window is formed in the side of the part, located in the reaction kettle, of the stirring shaft, a sleeve is arranged in the stirring shaft in a sliding and sealing mode, and an output valve is arranged on the side of the sleeve and led out of the guide window. The top of the sleeve is connected with a rotary joint, a stabilizer is connected into the sleeve through the rotary joint and is transmitted to the output valve through the sleeve, and the sleeve is further connected with a vertical reciprocating driving mechanism which can drive the sleeve to drive the output valve to do vertical reciprocating motion. According to the stabilizer adding device for chlorinated paraffin dehydrochlorination, the sleeve can be driven to vertically reciprocate while the stirring shaft rotates, a stabilizer output by the output valve can be uniformly injected into a reaction kettle in the vertical direction, the dispersion efficiency of uniform dispersion of the stabilizer is improved, the stabilizing effect of the stabilizer on chlorinated paraffin is improved, and the service life of the stabilizer is prolonged. The product quality of the chlorinated paraffin is improved.

The present invention provides a microcrystalline wax having a penetration greater than 1 at 25°C according to ASTM D-1321, a crystallinity of 5-70% according to XRD, an initial boiling point less than 500°C, a freezing point in the range of 60-120°C, and an oil content greater than 2 wt% according to ASTM D-721, wherein the microcrystalline wax has a maximum C40 fraction with at least 5 wt% multi-methyl-branched paraffins as determined by GCxGC.

The invention relates to the technical field of reaction kettles, in particular to an automatic reaction kettle for chlorinated paraffin production. According to the technical scheme, the device comprises a reaction kettle assembly and an upper workbench assembly fixedly installed at the top end of the reaction kettle assembly, the top end of the upper workbench assembly is fixedly connected with four sets of glass hollow pipes, and bulbs used for light heating are arranged in the four sets of glass hollow pipes. According to the invention, the limiting baffle plate increases the contact between the chlorine feeding pipe and the reaction kettle assembly and the extrusion force for positioning the chlorine feeding pipe, so that the annular air bag lantern ring frame extrudes the positioning insertion rod to be in a central state all the time; the situation that due to the fact that the positioning insertion rod or the chlorine feeding pipe vibrates in the stirring process, the joint of the positioning insertion rod or the chlorine feeding pipe and the reaction kettle assembly is separated, and then chlorine leakage is caused by gaps, and positioning and leakage prevention of the positioning insertion rod and the chlorine feeding pipe are caused are reduced; therefore, a good chlorine leakage prevention measure is achieved, and meanwhile the service life of the device is prolonged.

The present disclosure relates to a process for bleaching wax; comprising, mixing the wax with a solvent to form a mixture; treating the mixture using a bleaching composition to obtain treated wax; and washing and drying the treated wax to obtain bleached wax; such that, color value of said bleached wax is reduced by at least 80%

The invention belongs to the technical field of photocatalytic reaction, and particularly relates to a photocatalytic reaction device for chlorinated paraffin production, which comprises a reaction barrel, a stirring mechanism, a crushing mechanism, an irradiation mechanism and a driving mechanism, the reaction barrel is in a barrel shape with an open top wall, and the top of the reaction barrel is detachably provided with a top cover; the stirring mechanism is movably arranged on the bottom wall of the top cover, is positioned in the inner cavity of the reaction barrel and is used for stirring the chlorinated paraffin solvent and the photocatalyst. Through the arranged stirring mechanism, multi-mode stirring can be achieved, the whole stirring blades can be driven to rotate, part of the stirring blades can also rotate around the second rotating shaft, the stirring effect is improved, and the reaction is promoted; a rotating cylinder and a rotating rod of the crushing mechanism rotate in opposite directions, and first crushing nails and second crushing nails are arranged in a staggered manner, so that sediments are crushed from two directions; the lifting ring of the irradiation mechanism ascends and descends in a reciprocating mode, the irradiation range of ultraviolet irradiation lamps is enlarged, the number of the lamps is reduced, meanwhile, the irradiation efficiency is guaranteed, and the photocatalytic efficiency is improved through reflective layers of the reaction barrel and the stirring blades.