20results about How to "Continuous process" patented technology

The invention discloses a process method for selective deep desulfurization and denitrification of aromatic-rich fractions. The process method comprises the following steps: (1) mixing aromatic-rich diesel oil with hydrogen, and then feeding the mixture into a pre-hydrogenation reaction zone I for pre-hydrogenation dealkene reaction; (2) a product obtained in the step (1) enters a hydrofining reaction zone II for a hydrofining desulfurization and denitrification reaction; (3) carrying out flash evaporation on the product obtained in the step (2) to separate recycle hydrogen, enabling the obtained refined diesel oil to enter a moving bed adsorption denitrification reaction zone III, and carrying out deep adsorption denitrification reaction on the refined diesel oil under the action of an adsorption denitrification agent to obtain a desulfurized and denitrified refined aromatic-rich diesel oil component; and (4) enabling the inactivated adsorption denitrification agent in the step (3) to enter an adsorbent regeneration area IV, and completing reduction and drying of the inactivated adsorption denitrification agent under the action of a desorption agent to obtain the cyclically regenerated adsorption denitrification agent. According to the process method, deep removal of the sulfur-containing nitrogen-containing compound can be realized, and the investment cost is also greatly reduced.

The invention relates to the field of PBO fabric surface modification, and provides a continuous surface modification method for a PBO fabric. According to the method, construction of a gallic acid (GA) polyphenol layer is promoted through normal-pressure low-temperature plasma, and a taurine hydrophilic group is introduced for surface modification of the PBO fabric. The method comprises the following steps: firstly, cleaning and drying a PBO fabric, then carrying out on-line activation on the fabric by utilizing plasmas, and immersing the fabric into a GA system within 0-30 seconds after plasma treatment, so that a polyphenol layer is formed on the surface of the fabric by GA; and finally, immersing the fabric into a taurine solution, so that taurine is fixed on the surface of the polyphenol layer through a quinone-amine reaction and a Michael addition reaction, and washing, drying and curing to obtain the modified PBO fabric. The process can be continuous, the wettability of the PBO fabric can be remarkably improved, the interfacial compatibility with a resin material is enhanced, and the shear strength of the composite material is improved.

The invention relates to a 1, 1, 3, 3-tetramethylbutyl hydroperoxide synthesis system and a 1, 1, 3, 3-tetramethylbutyl hydroperoxide synthesis process, belongs to the technical field of fine chemical engineering and dangerous chemical synthesis, and provides a 1, 1, 3, 3-tetramethylbutyl hydroperoxide synthesis system and a 1, 1, 3, 3-tetramethylbutyl hydroperoxide synthesis process for solving the problem of low reaction rate caused by immiscibility of substrates and reduction of effective collision of molecules in the synthesis process of 1, 1, 3, 3-tetramethylbutyl hydroperoxide. The system comprises a feeding unit, a micro-reaction unit, a product collection and post-treatment unit and a safety control unit which are communicated with one another, reaction heat can be instantaneously removed by virtue of mutual cooperation of the units and the extremely high heat transfer efficiency of a micro-channel reactor, heat accumulation and local overheating are avoided, and the reaction efficiency is improved. And the risk that the reaction is out of control is fundamentally eliminated. And the safety control unit realizes real-time monitoring and automatic emergency treatment of temperature and pressure, and provides double insurance for high-risk reaction.

The invention relates to a silicon-copper co-oxide catalyst for strengthening CO2 electroreduction and preparation and application of the silicon-copper co-oxide catalyst for strengthening CO2 electroreduction, and the preparation method comprises the following steps: dissolving soluble copper salt and tetraethoxysilane in ethanol to form a uniformly mixed precursor solution; the precursor solution is conveyed to a spraying nozzle through a sample injection pump, the spraying nozzle atomizes the precursor solution into aerosol through atomization gas and sprays the aerosol into a combustion chamber, the aerosol is combusted under the high-temperature condition of the combustion chamber, evaporation, pyrolysis and oxidation reactions are generated, and nano-particles are generated; and putting the nano particles into a quenching device, and rapidly cooling to obtain a nano Si-Cu-Ox co-oxide, namely the catalyst. When the catalyst is applied to the process of preparing ethylene through CO2 electroreduction, Cu < + > active species generated in the electroreduction process can be stabilized and prevented from being reduced, so that C-C coupling of an intermediate product is strengthened, and the selectivity of an ethylene product is remarkably improved.

The present application provides a kind of herbal shoe pad and its preparation method and application, the preparation method includes the following steps: herbal raw material is crushed to obtain herbal short hair, then mixed with chemical fiber, by air laying to obtain cotton-like mixture, then the upper and lower surfaces of cotton-like mixture are attached with non-woven fabric, and the herbal shoe pad is obtained after heat bonding.The herbal shoe pad provided by the present application can make the shoe pad more environmentally friendly in an industrial mass production mode, while also achieving the use of raw herbal state to absorb foot sweat, decompose and dilute odor, achieve uniform structure, controllable thickness, wear-resistant and usable through air laying and heat bonding, and have the characteristics of original ecology, high adsorption and easy degradation.

The invention discloses a preparation method of a 1, 4-bis (4-phenoxy benzoyl) benzene-AlCl3 complex, and belongs to the technical field of polymer monomer preparation, aromatic diacyl chloride and aromatic ether are used as raw materials, a crude product of the 1, 4-bis (4-phenoxy benzoyl) benzene-AlCl3 complex is continuously synthesized under the catalysis condition of a Lewis acid catalyst, and the crude product of the 1, 4-bis (4-phenoxy benzoyl) benzene-AlCl3 complex is subjected to post-treatment to obtain the 1, 4-bis (4-phenoxy benzoyl) benzene-AlCl3 complex. The high-purity 1, 4-bis (4-phenoxy benzoyl) benzene-AlCl3 complex can be used as a polyether ketone ketone active monomer, and the effect of the active monomer can be exerted without adding aluminum in the polymerization reaction process.

This invention discloses a pulsed current-assisted strip stamping forming device, relating to the field of composite metal strip processing technology, to solve the problem of how to prepare reliably bonded composite strips under small deformation conditions. The pulsed current-assisted strip stamping forming device includes: a bearing device with a bearing surface, a first electrode disposed on the bearing surface, and at least two metal strips to be bonded stacked on the first electrode. A moving device is disposed on the bearing surface, and a pulsed current-assisted stamping device is disposed on the moving device, positioned above the first electrode. The moving device is used to move the pulsed current-assisted stamping device to or away from the metal strips, and a pulse power supply is electrically connected to the pulsed current-assisted stamping device and the first electrode. This invention achieves the preparation of reliably bonded composite strips under small deformation conditions by simultaneously applying pulsed current and stamping force to the area of ​​contact by the pulsed current-assisted stamping device.

The invention belongs to the technical field of waste liquid resourceful treatment, and particularly relates to a phase separation and recovery device for polyacrylonitrile spinning dimethyl sulfoxide-containing waste water. Comprising a transpiration multi-section type combined pipeline which comprises a continuous S-shaped flow channel formed by alternately connecting vertical sections and horizontal sections; a heat supply system; and each condensation recovery device is connected with the corresponding horizontal section. By adopting the S-shaped transpiration multi-section combined pipeline, transpiration, separation and condensation are integrated, the space utilization rate is high, and the process is continuous. A pneumatic device is arranged in the pipeline, so that gas flow conveying in a specific direction is realized, and the conveying flow of a gas-fog mixture can be adjusted; through the multi-stage gradient heating combination including external heating and inert gas mixing heating, the heating efficiency is high, and the phase separation process can be more accurately controlled; the design of a condensation recovery device is matched, so that the separation efficiency of DMSO and water and the product purity are effectively improved.

The application discloses a watchband laser cutting device and a cutting method. A work round table is arranged, and a plurality of positioning clamps are arranged on one side of the work round table. The work round table is matched with a feeding mechanism, a laser cutting mechanism and a discharging mechanism, and work is performed between the corresponding positioning clamps, so that the watchband to be processed can sequentially complete the feeding, positioning, cutting and discharging processes, thereby forming a continuous and orderly processing flow. The positioning clamp is formed by a fixed block and two clamping plates, and the clamping space gradually increases in the direction away from the surface of the fixed block, so that the watchband can be more smoothly introduced into the clamping area when entering the positioning clamp, and better guiding and limiting effects are obtained during the entering process, thereby improving the stability and consistency of the watchband placement posture, reducing the occurrence of inclination, lifting or inaccurate positioning of the watchband in the processing area, and thereby maintaining high corresponding precision between the laser cutting position and the predetermined processing area.

The utility model discloses a kind of metal shell plate length measuring counting mechanisms, belong to bar-shaped battery production and manufacturing field, including vertical frame body, first guide component and second guide component are vertically arranged on the vertical frame body, and the vertical frame body between first guide component and second guide component is provided with a length measuring counting component;Metal shell plate moves along the horizontal transverse of the middle part of vertical frame body, and sequentially passes through first guide component, length measuring counting component and second guide component.The utility model is designed through vertical frame body, can effectively save horizontal installation space, adapt compact production site layout, by vertically setting first guide component and second guide component on vertical frame body, the horizontal transverse moving path of metal shell plate can be bidirectional limited, avoid the deviation, skew in the movement of metal shell plate, improve work efficiency.

The invention belongs to the field of biological agriculture, and discloses rumen bypass glucose based on a polymer gel technology and a preparation method and application thereof. The rumen bypass glucose is prepared from 15 to 30 parts of agar, 10 to 25 parts of zein, 5 to 15 parts of locust bean gum and 40 to 65 parts of anhydrous dextrose. The preparation method comprises the steps of raw material crushing, pre-melting, twin-screw melt extrusion, pelletizing, cooling, screening and the like. According to the invention, agar-locust bean gum is utilized to form a compact gel network to realize physical blocking and screening, and low release (in vitro 12-hour release rate lt, 5%) in rumen and rapid and complete release (in vitro 8-hour release rate gt, 90%) in small intestines are realized by relying on hydrophobicity and enzyme response characteristics of zein. The product is suitable for a feed for dairy cows in a perinatal period and an initial lactation period, can remarkably improve energy negative balance, shorten non-pregnant time by about 20 days and increase milk yield by about 3.0 kg / head per day, and is natural in raw materials, simple and convenient in process and suitable for industrial production.

The utility model relates to a continuous efficient reaction device for glycol ketal or acetal, and relates to the field of fine chemical production, the continuous efficient reaction device for glycol ketal or acetal comprises a condensation tower, an oil-water separator and a rectifying tower, the condensation tower is filled with a catalyst; the oil-water separator is communicated to the output end of the condensation tower and is provided with a first discharge hole for outputting a water phase; the rectifying tower is communicated to the first discharge hole of the oil-water separator, and the rectifying tower is provided with a second discharge hole for outputting dihydric alcohol and a third discharge hole for outputting water; the third discharge hole is communicated to the output end of the condensation tower and is used for supplementing raw materials to the condensation tower. The dihydric alcohol separated after water is removed through rectification can be used as a raw material to be re-put into the condensation tower to be subjected to condensation reaction with ketone or aldehyde, and the method has the characteristics of continuous process, low investment and capability of promoting ketal or aldolization reaction without carrying water through an entrainer, and has relatively high industrial value.

The utility model discloses a screening device for soil remediation, and belongs to the field of screening devices. The device comprises a fixing device, a screening device and a conveying device. The fixing device comprises a mounting frame; the conveying device comprises a conveying belt and a power motor; the screening device comprises a screen, a comb plate, a mounting block and an impact plate; the power motor is installed on the installation frame and connected with the lower area of the conveying belt, and the conveying belt is fixed to the installation frame. A mounting block is arranged below the upper area of the conveying belt, an impact plate is arranged above the mounting block, a comb plate is arranged at the front end of the mounting block, and the mounting block is mounted on a mounting frame; the screen is arranged in a lower area of the mounting block, and one end of the screen is connected with a driven wheel arranged in a lower area of the conveying belt; the screen is slidably mounted on the mounting frame. According to the device, it is ensured that soil attached to the stones and soil coagulated into blocks can fall off or be broken after being impacted, so that the situation that the soil is discharged along with the large stones is avoided, and waste of the soil is reduced.

The invention belongs to the technical field of chemical wastewater treatment and recycling, and particularly relates to a method for preparing fumaric acid by treating maleic acid wastewater. The pretreated maleic acid wastewater passes through at least two stages of fixed bed reactors connected in series, the fixed bed reactors are filled with a thiourea supported catalyst, maleic acid is subjected to a continuous isomerization reaction, and a fumaric acid product is obtained. The thiourea supported catalyst takes mesoporous silica or alumina as a carrier, and thiourea groups are immobilized on the surface of the carrier through covalent bonds. The invention relates to an integrated system for realizing continuous catalytic reaction, intermediate product separation and efficient utilization of a catalyst by using a thiourea supported catalyst, and particularly relates to an integrated system for realizing continuous catalytic reaction, intermediate product separation and efficient utilization of the catalyst by using a multistage fixed bed reactor to catalyze epoxiconazole to produce maleic acid-containing wastewater through isomerization.

The present application relates to the technical field of interventional medical instruments, in particular to a pressure-controllable super-high-oxygen myocardial perfusion device and a pressure control method. The device comprises a normal-pressure oxygenation cavity, a heat exchange cavity and a high-pressure oxygenation cavity connected in sequence, and a main circulation loop and a static high-pressure oxygenation bypass; the inlet and outlet of the high-pressure oxygenation cavity are both provided with a blockage type peristaltic pump with pumping and sealing functions, the peristaltic pump is internally provided with an oxygenation membrane, and is configured with a pressurizing mechanism for simultaneously pressurizing liquid sides and oxygen sides on both sides of the oxygenation membrane, and a heat exchange mechanism for cooling the perfusion liquid to about 14 DEG C. The present application can prepare super-high-oxygen myocardial protective liquid with oxygen partial pressure higher than 700 mmHg through static, low-temperature and high-pressure oxygenation while maintaining extracorporeal circulation continuous perfusion, significantly improve the myocardial protection effect, and has the advantages of compact structure, precise control and safe operation.

A method for recovering and reusing active materials from cathode waste is provided. The method for reusing cathode active materials according to the present invention includes the following steps: (a) heat-treating cathode waste comprising a cathode active material layer including a lithium composite transition metal oxide on a current collector in air to pyrolyze the binder and conductive material in the active material layer, thereby separating the current collector from the active material layer and recovering the active material in the active material layer; (b) rinsing the recovered active material with a cleaning solution; and (c) adding a lithium precursor to the rinsed active material and annealing the active material to obtain reusable active material, wherein the decrease in the molar ratio of lithium to other metals in the active material after heat treatment or after rinsing, compared to the molar ratio of lithium to other metals in the active material in the cathode waste before heat treatment, is within 20%.

This invention discloses a low-temperature instant crosslinking rubber-type cold-resistant polyethylene protective film and its preparation method, belonging to the field of protective film technology. The protective film is prepared by coating a polyethylene base film with a two-component rubber pressure-sensitive adhesive and then crosslinking it at low temperature. Component A is a ternary compound rubber phase, and component B is an aliphatic triisocyanate crosslinking phase, combined with synergistic additives to achieve rapid low-temperature catalytic crosslinking. The preparation process employs a two-component synchronous delivery, static mixing, slot coating, and low-temperature curing at 70-90℃, completing crosslinking in 3-5 minutes, significantly reducing energy consumption. The resulting protective film exhibits excellent initial tack and holding power, shows no brittleness or residue at -30℃, has a gel content of over 91%, and demonstrates excellent low-temperature protective performance. This invention's process is safe, efficient, and suitable for industrial production, meeting the requirements for product surface protection in low-temperature environments.

The present application relates to a kind of environment-friendly high toughness high-temperature resistant corrosion-resistant polyamide elastomer and its preparation and application, belong to high polymer synthesis field.The present application provides a kind of polyamide elastomer, the structural formula of the polyamide elastomer is as shown in formula I.The present application has prepared a kind of environment-friendly high toughness high-temperature resistant corrosion-resistant elastomer with new structure, due to the introduction of biphenyl, naphthalene ring structure, it is endowed with excellent heat, corrosion resistance and outstanding rigid-flexible mechanical properties (tensile strength reaches nearly 80MPa, and its elongation at break can reach 900%).

The application provides a silicon-doped titanium lithium ion sieve and a preparation method and application thereof, and particularly relates to the technical field of ion sieve preparation. 1‑x Si x O3; wherein 0 The silicon-doped titanium lithium ion sieve provided by the application introduces silicon elements in the crystal structure, uses the high-electronegativity tetravalent silicon atoms to replace a small part of low-electronegativity tetravalent titanium atoms, breaks the regularity of rapid formation of titanium-oxygen bonds and rapid growth of [TiO6] octahedrons on one hand, controls the crystal growth speed, perfects the crystal defects at high temperature, and obtains a small-particle-size titanium lithium ion sieve precursor beta-Li2TiO3 at high temperature, and uses the higher stability of Si-O bonds than Ti-O bonds, so that the synthesized lithium ion sieve has higher acid resistance and lower titanium dissolution loss rate.

The application belongs to the technical field of welding, and discloses a stop valve welding auxiliary device and a use method thereof, which comprises a base, a fixed plate and a movable plate, the side surfaces of the fixed plate and the movable plate are rotationally installed with assembly, and the end portions of the two assembly are fixedly installed with installation barrels. The rotating sleeve on one side of the assembly is sleeved on the inner side of the weld at the welding position, and the rotating mechanism is started in the actual welding process. The rotation of the second gear is driven by the rotating mechanism, the rotation of the first gear outside the rotating pipe is ensured in the rotating process, the rotation of the rotating sleeve is further realized, the molten drops generated in the welding process are thrown away by the rotating rotating sleeve when dropping, the protection of the valve body and the inside of the pipe end to be welded is realized, the molten drops in the welding process are effectively prevented from dropping inside to form a metal protrusion, the inner wall of the stop valve is ensured to be clean and smooth, the quality and the aesthetic appearance after the actual welding are greatly improved, and the use effect is good.