15results about "Petroleum chemical modification" patented technology

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 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.

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 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 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 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.

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 invention relates to oxidized paraffin, a preparation method thereof and application of the oxidized paraffin in preparation of emulsified wax, and belongs to the technical field of paraffin modification. The specific catalyst is used for catalyzing oxidation of the paraffin, the acid value and the saponification value of the prepared oxidized paraffin are higher, the oxidized paraffin is used as a paraffin raw material, the oxidized paraffin has more oxygen-containing groups and is easier to emulsify, and the emulsified paraffin obtained after emulsification is stable in property, smaller in particle size, better in dispersing performance and excellent in physical performance; wide application prospects are realized.

The present disclosure refers to systems and methods for producing hydrogen among other products. In some embodiments the methods comprise sequentially conducting a cracking step in a fixed bed mode and conducting a flowing step in a fluidized bed mode. Such sequential processes may result in a number of advantages including, for example, regenerating the catalyst during the fluidized bed mode in a manner such that beneficial heat is generated for use in the endothermic cracking step.

The utility model relates to the technical field of paraffin reactors, in particular to a medium-long carbon chain chlorinated paraffin reactor. The reactor comprises a reactor main body, the bottom of the reactor main body is fixedly connected with a support frame, the top of the reactor main body is fixedly communicated with an air inlet pipe, the lower surface of the reactor main body is fixedly communicated with an exhaust pipe, the inner wall of the reactor main body is provided with a cooling assembly, and an inner cavity of the reactor main body is provided with a stirring cooling assembly. Paraffin and chlorine in the reactor can be driven to be fully mixed through rotation of the stirring rod, meanwhile, the first connecting pipe is responsible for introducing cooling liquid into the stirring rod, the second connecting pipe is used for flowing out of the cooling liquid, a complete cooling liquid circulation channel is formed, and meanwhile the stirring rod is communicated with the stirring cooling pipeline. Cooling liquid can exchange heat with surrounding high-temperature paraffin through the pipe wall of the stirring cooling pipeline, so that the temperature of the paraffin in the areas is effectively reduced.

The invention relates to the technical field of multifunctional lubricants, and discloses a zinc stearate lubricant composition for polyvinyl chloride processing and a preparation process thereof, specifically, trialkyl citrate, p-hydroxybenzoic acid, mercaptoethylamine and paraformaldehyde are taken as raw materials, esterification reaction and Mannich condensation reaction are carried out, and the zinc stearate lubricant composition for polyvinyl chloride processing is obtained. The thiolated benzoxazine type citric acid trialkyl ester is prepared by adding the thiolated benzoxazine type citric acid trialkyl ester; the preparation method comprises the following steps: based on a substitution reaction mechanism, preparing functionalized chlorinated paraffin by taking thiolated benzoxazine trialkyl citrate and chlorinated paraffin as raw materials; the functional chlorinated paraffin and zinc stearate are premixed, and the zinc stearate lubricant composition is prepared through an extrusion granulation process. The zinc stearate lubricant composition prepared by the invention is used as a raw material in polyvinyl chloride processing, so that a polyvinyl chloride product prepared from the zinc stearate lubricant composition has the beneficial technical effects that the lubricating property, the plasticizing effect and the thermal stability are remarkably improved.

This utility model relates to the field of chlorinated paraffin preparation technology, specifically, to a chlorinated paraffin reaction apparatus. It includes a mounting bracket, an inner wall of which is fitted with a processing tank, and inside the processing tank is a stirring assembly. The stirring assembly accelerates the mixing speed of chlorine and paraffin while ensuring thorough mixing. In this utility model, the stirring assembly is driven by a motor, enabling rapid stirring of chlorine and paraffin, ensuring thorough mixing, accelerating the chlorination reaction rate, and improving production efficiency. Compared to traditional static mixing methods, this dynamic stirring method can more evenly distribute reactants, reducing local over-reaction or incomplete reaction, thereby improving product quality. The plate structure formed by the combination of horizontal and vertical plates has rectangular holes, which facilitates material flow and mixing.

The utility model belongs to the technical field of chlorinated paraffin production equipment, and particularly relates to a feeding device for chlorinated paraffin production, which comprises a feeding box, a cover plate is mounted at the upper end of the feeding box through bolts, a feeding port is arranged in the middle of the upper portion of the cover plate, the feeding port is communicated with the feeding box, and the feeding box is communicated with the cover plate. A discharging port is formed in the lower portion of one side of the feeding box, a liquid level observation component is arranged at the front end of the feeding box, and a filtering component is arranged in the portion, below the cover plate, of the feeding box. The device has the beneficial effects that by arranging the filtering part, a worker can further filter liquid paraffin, and large particles in the liquid paraffin are prevented from entering the reaction kettle, so that the full reaction of the liquid paraffin and chlorine is influenced, and the production quality of chlorinated paraffin is reduced.