58results about How to "Can be used repeatedly" patented technology

The invention discloses a method for preparing a multi-sulfonic acid group functionalized ionic liquid. In the method, a poly-nitrogen tertiary amine reacts with a sultone to an obtain multi-sulfonic acid radical betaine, and the obtained betaine is subjected to acidification by an acid to obtain the multi-sulfonic acid group functionalized ionic liquid. The ionic liquid prepared by the invention has the characteristics of high thermal stability, high acid value, low synthesis cost and good catalytic effect, etc.

The invention discloses a preparation method for an ionic liquid with both B acid sites and L acid sites. The preparation method comprises the following steps that tertiary amine compounds are reacted with sultones so as to obtain a polysulfonate ylide; then, halogen acid is adopted to carry out acidification so as to obtain a sulfo-group functionalized ionic liquid with haloid anion; and the ionic liquid is reacted with metal halides so as to prepare the ionic liquid with both B acid sites and L acid sites. Moreover, the ionic liquid has the characteristics of high thermal stability, a variety of acids, low synthesis cost, excellent catalytic effect, and the like.

The invention discloses a preparation method of an acid ionic liquid mesoporous polymeric material, belonging to the technical field of organic chemical synthesis. The method is characterized by comprising the following steps of: enabling an imidazole compound containing ethylenic bond to react with sultone to obtain ylid of sulfonic group containing ethylenic bond; acidifying with inorganic acid to obtain a sulfonic group functionalization ionic liquid monomer of which the anion is acid radical; reacting with a metal oxide or hydroxide to convert some hydrogen ions into metal ions of the L acid center; preparing an ionic liquid monomer with both B acid center and L acid center; performing self-polymerization of the ionic liquid monomer to form an ionic liquid low polymer; and then performing co-polymerization with divinyl benzene to form the acid ionic liquid mesoporous polymeric material. The synthesized material in the invention has the advantages of high thermal stability and good catalytic effect and can be repeatedly used.

The invention discloses a method for synthesizing methyl oleate and epoxy methyl oleate in ionic liquid medium, which pertains to the technical field of fine chemical synthesis. The invention adopts N-methylimidazole positive ion or ionic liquid composed of N-methyl-2-ketopyrrolidine positive ion liquid and inorganic anions as the catalyst and the medium for reaction; under normal atmosphere, oleic acid and methanol are catalyzed to react for generating methyl oleate; and the invention also adopts 1-methyl-3-n-butylimidazolium chloride ionic liquid as the reaction medium and [Bmim]W10O23 as the catalyst, and under normal atmosphere, uses the synthesized methyl oleate to carry out epoxidation reaction by being dropped with oxyful of 30 percent, thus generating the epoxy methyl oleate. Compared with the traditional catalyzing method, the invention has the advantages that: 1. the reaction temperature is low, the reaction time is short and the energy consumption is low without pollution; 2. the separation process is easier; and 3. the ionic liquid medium used in the reaction can be reused after being simply processed.

The invention discloses an ionic liquid combining a B acid site and an L acid site as well as a preparation method and application thereof, belonging to the technical field of organic chemistry synthesis. The preparation method is characterized by comprising the following steps of: reacting a tertiary amine compound with sultone to obtain the ylid salt of mucopolysaccharide radical; acidizing with sulfuric acid to obtain a sulfonic functionalized ion liquid of which the anion is bisulfate radical; reacting with metal oxide or hydroxide; and converting parts of hydrogen ion into the metal ion of the L acid site to prepare the ionic liquid combining the B acid site and the L acid site. The ionic liquid has the advantages of high thermal stability, varied acid types, good catalytic effect, combination of the B acid site and the L acid site, stability to water and no decomposition and the like, and a catalyst can be reused several times.

The invention provides a lateral flow chip and its joint device. The lateral flow chip and its joint device are characterized in that the connection of the microfluidic chip and the joint device is realized by a specially designed buckle structure. The fluid outlet of the microfluidic chip is on the lateral side of the chip. The fluid outlet part of the microfluidic chip is designed with at least one cantilever type hook, annular hook or spherical hook connecting structure. During use, only by inserting the microfluidic chip into the joint device, can automatic fastening be realized, the operation is very simple, and the joint device can be used repeatedly.

The invention discloses a method for hydrothermal synthesis of a carbon-silicon composite solid acid catalyst, which belongs to the technical field of chemical synthesis. The method comprises the following steps: preparing aqueous solution with sugar compounds easy to be carbonated, adjusting the pH value of the solution to be 3-4, dropping ethyl orthosilicate, hydrolyzing for 15 minutes under the stirring condition, transferring the solution into a high-pressure reactor, heating for 4 hours in a baking oven of 150-200 DEG C, cooling the solution to the room temperature, opening the high-pressure reactor, filtering, washing and drying, thereby obtaining a carbon-silicon composite material, and then sulfonating the obtained carbon-silicon composite material and concentrated sulfuric acid, thereby completing the preparation of the novel carbon-silicon composite solid acid catalyst. The solid acid has the advantages that: the synthesis is green, the emissions of waste solution and waste gas are low; the acid value is high; the specific surface of the synthesized material is large; the synthesis cost is low; the catalytic effect is good; and the catalyst can be used repeatedly.

The invention discloses a catalyst for iron-based multi-phase Fenton reaction. The catalyst is prepared from ferric oxide and silicon oxide, wherein the silicon oxide coats the ferric oxide; the ferric oxide content is between 15 percent and 75 percent; the silicon oxide content is between 85 percent and 25 percent. The catalyst has good catalytic activity on catalytic degradation of organic contaminants (such as phenol, nitrobenzene and methylthionine chloride) through Fenton reaction. In addition, the cost is low, the recovery is easy; the repeated use and the good application prospects are realized.

The invention discloses a mucous membrane staining system. A first staining fluid bottle (1) is connected with a first connector of a first tee joint (5) through a first pipeline (3), a second connector of the first tee joint (5) is connected with a second staining fluid bottle (2) or a flushing fluid bottle (6) through a second pipeline (4), and a pump tube (7) is connected to a third connector of the first tee joint (5), installed on a first power device (8) and connected with a flushing tube (9) or / and a spraying tube (10). A first switching device (11) is connected between the first pipeline (3) and the second pipeline (4). The functions of gastrointestinal tract mucous membrane flushing cleaning and gastrointestinal tract mucous membrane staining are integrated and can be rapidly switched, several modes are provided for selection, the diagnosis and treatment efficiency of a gastrointestinal endoscope and comfort of a patient can be improved, missed diagnosis and misdiagnosis can be easily reduced, the examination rate of a digestive tract early cancer is increased, and meanwhile accurate treatment under the gastrointestinal tract endoscope is facilitated.

The invention discloses a resorcinol formaldehyde resin base solid acid and a preparation method and application thereof, belonging to the technical field of chemical synthesis. The invention is characterized in that the preparation method comprises the following steps: by using resorcinol as a raw material, a formaldehyde solution (the mol ratio of the raw material to the formaldehyde solution is (1:1)-(1:3)) as a crosslinking agent and hydroxy-ethyl sulfonic acid (the mol ratio of the raw material to the hydroxy-ethyl sulfonic acid is (1:0.1)-(1:1)) as an active molecule, adding water (the mass ratio of the resorcinol to the water is 1:5-1:20) to prepare a solution; carrying out condensation reaction at 65-95 DEG C for 60-120 hours, and drying by rotary evaporation to obtain the RF (resorcinol formaldehyde) resin; then, carrying out carbonization condensation reaction at 180-300 DEG C for 2-32 hours; and after the reaction, washing with hot water at the temperature higher than 80 DEG C, filtering to remove free acidic materials, and drying the product in a baking oven at 120 DEG C to obtain the resorcinol formaldehyde resin base solid acid. The resorcinol formaldehyde resin base solid acid disclosed by the invention has the advantages of high thermal stability, high acid value, favorable catalysis effect and the like, and can be repeatedly used.

The invention discloses carbon-based solid acid as well as a preparation method and application thereof, belonging to the technical field of chemical synthesis. The preparation method is characterized in that a polyhydroxy compound is used as a raw material, isethionic acid is used as active molecules, the molar ratio of the raw material to the isethionic acid is (2:1)-(10:1), and the carbon-based solid acid is prepared through the steps of: carrying out carbonization and condensation reaction on the polyhydroxy compound and the isethionic acid at 120-400 DEG C for 2-32h, adding hot water above 80 DEG C for washing after the reaction, filtering to remove dissociative acidic substances, and drying the obtained product in a drying oven at 120 DEG C. The carbon-based solid acid has the advantages of high heat stability, high acid value, good catalytic effect, reusability and the like.

The invention discloses a preparation method of a nanoimprint nickel seal. The method comprises the following steps: performing multi-step constant-pressure anodic oxidation on the aluminum material to generate an anodic oxidizing aluminum film with tapered pores; then chemically plating the anodic oxidizing aluminum film to enable the film to gain the conductivity; and finally electroforming to obtain the nickel seal with an ordered pattern. According to the preparation method, the prepared nickel seal has the advantage that the nanometer nickel array is ordered in height and has adjustable shape and length; and the prepared nickel seal can be applied to the preparation of an ordered anodic oxidizing aluminum film, a biological chip, a nanometer electronic devices and the like.

The invention relates to the field of oilfield water injection, and aims to provide a high-pressure plunger pump skid-mounting device for oilfield water injection. The high-pressure plunger pump skid-mounting device for oilfield water injection comprises a plunger pump unit fixedly connected onto a skid-mounting chassis, a plunger pump standby unit, an adaptive pipeline thereof, and an anti-explosion electric control cabinet, wherein the adaptive pipeline comprises a liquid inlet pipeline and a liquid outlet pipeline; the liquid inlet pipeline is provided with a liquid inlet main valve, a filter, a plunger pump control valve and a low-pressure pneumatic cut-off valve; high-pressure check valves are arranged on outlet pipelines of the plunger pump standby unit and the plunger pump unit; a pressure transmitter, a pressure gage and a first temperature transmitter are arranged on the liquid outlet pipe; and the anti-explosion electric control cabinet is connected with the low-pressure pneumatic cut-off valve, the plunger pump unit, the plunger pump standby unit, the pressure transmitter and the first temperature transmitter through leads. The plunger pump skid-mounting device is simplein structure, low in cost, capable of monitoring the pipeline temperature and the pressure in real time and conveniently and safely providing high-pressure water injection, and suitable for places with oilfields requiring water injection.

A multifunctional nuclear magnetic resonance inspection cap comprises a cap body; the cap body takes the shape of a hollow cover cap; the size and the shape of the cap body enable the cap to wrap and cover the hair growth area, the forehead, the tempora and the ear part of a patient after the cap is worn at the head part of the patient; an elastic structure is arranged on the edge of the cap body; the cap body is made of a flexible material which is unlikey to generate static electricity; an elastic air cushion layer with a gas-filled cavity is arranged on the outer surface of the cap body; the gas-filled cavity is communicated with an external air sac through an air duct; the front part of the cap body is rotationally connected with a cap brim capable of being overturned to cover the eye position to be used as a eye patch. The multifunctional inspection cap has the advantages that the head of the patient can be well fixed during examination; the discomfort such as the noise generated by nuclear magnetic resonance to the patient is reduced; the shielding to eyes is reduced, and the constriction feeling is reduced; the cleanness of the instrument is ensured.

The invention discloses a piezoelectric tension monitoring device. A clamping sheet is arranged outside one tested stranded wire or each of 3-5 tested stranded wires, wherein an anchor ring is arranged outside the clamping sheet, a ring is arranged outside the anchor ring, at least two piezoelectric sensors dividing a circumference in equal parts are arranged between the ring and the outer surface of the anchor ring, the piezoelectric sensors are connected with a computer through data wires, and convert the received pressure born by the stranded wire and the pressure born by the stranded wire due to the deformation of the anchor ring through the clamping sheet to electric signals to output to the computer, and the computer computes according to the program set in advance to calculate the tension of the stranded wire. The device disclosed by the invention has the advantages of good stability, high measurement precision, and capability of repeated use, and can be applied to monitoring the tension of the stranded wire when constructing a pre-stressed concrete structure project.

The invention discloses an artificial island manufacture method, which comprises the following steps that a plurality of sections of platform units required by an artificial island main boat body are manufactured on the land; a plurality of sections of platform units are subjected to split joint to form the main boat body on the land; the main boat body is directly conveyed to the destination ocean through a tugboat; a pile leg and an ascending and descending mechanism are arranged on the main boat body; and the ascending and descending mechanism is started, the ascending and descending mechanism is continuously started after the pile leg descends to the seabed, the main boat body ascends relative to the pile leg to leave the sea level, the ascending and descending mechanism is locked after the main boat body ascends to the required height, and an artificial island is formed. The artificial island manufacture method provided by the invention has the advantages that the manufacture is simple, the installation is convenient, the ascending or descending of the main boat body can be fast realized by the pile leg directly through the ascending and descending mechanism, the artificial island can also be conveniently moved to the use region according to requirements, and the method has rich potential economic benefits, social benefits and martial effects.

The invention discloses a preparation method of a solid acid material with carboxylic acid group and sulfonic acid group and belongs to the technical field of organic chemosynthesis. The preparation method is characterized in that a hydroxy sulfonate compound reacts with maleic anhydride to obtain a monoester compound containing olefinic link, sulfonic acid group and carboxyl group; the monoester compound is self-polymerized to form an oligomer; and then the oligomer is co-polymerized with divinyl benzene to form the solid acid material with the carboxylic acid group and the sulfonic acid group. The solid acid material with the carboxylic acid group and the sulfonic acid group, prepared by the invention has the advantages that the thermal stability is high, the catalysis effect is good, and accelerant can be used repeatedly.

The invention discloses a preparation method of a nano TiO2 / sepiolite composite material, and also discloses a use of the nano TiO2 / sepiolite composite material for formaldehyde degradation. The preparation method is simple in process steps and convenient to operate and comprises the steps: stirring and mixing sepiolite and water, then selecting a middle suspended matter, filtering, heating and drying, calcining, and thus obtaining purified sepiolite; and stirring and dispersing the purified sepiolite with water, then adding a TiCl4 solution, next heating and drying, roasting, and thus obtaining the nano TiO2 / sepiolite composite powder material. The nano TiO2 / sepiolite composite powder material is prepared by taking TiCl4 as a precursor and through a hydrolysis precipitation method, has the characteristics of wide sources of raw materials, low production cost, convenient use, repeatable use, no secondary pollution and the like, also has good effects of degrading formaldehyde and treating formaldehyde pollution, has the degradation rate reaching 98%, and is beneficial for wide popularization.

The invention discloses methods for preparing an efficient catalyst from electrolytic manganese residues and oxidizing and degrading methylene blue by catalyzing hydrogen peroxide, and belongs to thetechnical field of recycling of the electrolytic manganese residues. The method comprises the following steps: performing suction filtration, drying and smashing on leached manganese residues to obtain manganese residue powder; uniformly kneading and stirring the manganese residue powder and a copper-cerium mixed solution to obtain a manganese residue mixed solution; calcining the manganese residue mixed solution to obtain the catalyst. When the catalyst disclosed by the invention is applied to treatment of methylene blue wastewater, the removal rate of the methylene blue is up to 99 percent;after the catalyst is settled down, supernate is colorless. The method solves the problem of a large amount of the electrolytic manganese residues; the electrolytic manganese residues are prepared into a modified manganese residue catalyst used for efficiently catalyzing the hydrogen peroxide to degrade the methylene blue, so that the manganese residue resources are reused, and the additional value of the manganese residues is increased; the methods have extremely high actual application values.

The invention relates to a molybdenum plate nickel plating method for a silicon power electronic device. The method is characterized by comprising the following steps of: placing a molybdenum plate in a cylinder and immersing the molybdenum plate and the cylinder into a plating liquid for barrel plating, wherein the plating liquid comprises 250g / L of nickel sulfate, 50g / L of nickel chloride, 45g / L of boric acid and 20g / L of magnesium sulfate, the temperature of the plating liquid is 40-55 DEG C, the pH value is 8-9, the rotating speed of the cylinder is 10-15rpm; connecting a plating power supply anode with a metal nickel plate to be plated, wherein the anode current is 80-90A; leading the cathode into the cylinder to be in contact with the molybdenum plate, and plating for 40-60 minutes; after primary nickel plating of the molybdenum plate, pouring the molybdenum plate out of the cylinder and washing with clean water; then, drying, and placing nitrogen introducing furnace alloy conventionally; after annealing, repeatedly performing secondary nickel plating according to the method; and then pouring the molybdenum plate, and washing and drying the molybdenum plate. The thickness of the nickel plating layer of the molybdenum plate is easy to control, the method is convenient to operate, and the plating liquid can be repeatedly used.

The invention discloses a phenolic resin based solid acid, a preparation method and application thereof, belonging to the technical field of chemical synthesis. The preparation method is characterized by comprising the steps of: with phenolic resin as a raw material and isethionic acid with a mass ratio of 1:0.5-1:2 with the raw material as an active molecule, undergoing a condensation reaction for 2-32h at a temperature of 180-300 DEG C, after the reaction is ended, adding hot water with the temperature of above 80 DEG C in the product for washing, filtering to remove free acidic matters, and then drying in a drying oven with the temperature of 120 DEG C to obtain the phenolic resin based solid acid. The phenolic resin based solid acid prepared in the invention has the advantages of highheat stability, high acid value, good catalytic activity, capability of being repeated in use, and the like.

The invention provides a solid waste extraction system and a method thereof. The system comprises an extraction liquid adding part, an oscillating extraction part and an extract collecting part. The extraction liquid adding part comprises a liquid adding device, an extraction device and a pressurizing device. The oscillating extraction part comprises the extraction device and an overturning type oscillator. The extract collecting part comprises the pressurizing device, the extraction device and a collecting device. The devices are connected through connecting pieces. According to the system and method provided by the invention, by adoption of the liquid adding device, extraction reactants are added into the extraction device, extraction reaction is completely conducted under oscillation of the overturning type oscillator, and extract is collected into the collecting device through a filtering effect of the extraction device; the system is high in airtightness so that overflowing of harmful gas can be effectively prevented; the collecting device can be used for collecting liquid and gas; and through the method provided by the invention, toxicant substances in solid waste can be effectively extracted, and a reasonable scheme can be provided for subsequent solid waste treatment modes.

The invention discloses an interpenetrating network hydrogel material with a high thermal conductivity and a high elasticity, and a preparation method thereof. The preparation method comprises the following steps: hydroxyethyl cellulose is taken, and is dissolved in a graphene oxide / ammonium persulfate suspension, stirring is performed until uniformity, an appropriate amount of acrylic acid is added, then the obtained mixed solution is rapidly poured into a mold, the mold is placed in a constant temperature oven, the mixed solution is reacted for a period of reaction, and the obtained hydrogelin the mold is taken out, and is washed with deionized water to remove unreacted monomers and impurities in order to obtain the hydrogel containing a small amount of graphene oxide. The method of theinvention has a simple process, the obtained hydrogel has good compression resistance and good thermal conductivity, and the high thermal conductivity can be achieved by adding only a small amount ofthe graphene oxide; and compared with other thermal conducting media, the interpenetrating network hydrogel material of the invention has the excellent characteristics of good compressive strength, reusability, no oil permeation, low viscosity, and easiness in disassembling.

The invention discloses a plasma exhaust gas purification device. A cover plate is arranged at the top of a box, a partition is arranged in the middle of the box, the cover plate and the lower surface of the partition are provided with electrode bars, the partition is a hollow plate, a gas outlet is formed in the bottom surface of the partition, penetrated channel positioning holes are uniformly formed in the upper surface of the partition and vertically correspond to the electrode bars, gas channels are inserted into the channel positioning holes and sleeve the outside of the electrode bars, a power supply is connected with a transformer, output ends of the transformer are connected with motor leads respectively, the power supply and the transformer are respectively arranged on the outside of the box, and an induced draft fan is arranged on the outside of the other side of the box and communicated with the gas outlet in the bottom of the box through a connecting pipe. According to the device, the number and the scale of the electrode bars, the gas channels and the partition can be randomly increased according to actual treatment conditions, treatment capacity is random, treatment effect is obvious, exhaust gas is purified through physical action, and the purification device with fewer detrimental impurities is repeated and frequent to use.

The invention relates to a drilling rock core box suitable for placing rock cores with different apertures, relates to the field of rock core storage, and aims to solve the problems that the specification of a rock core placement area in a rock core box is fixed, the apertures of the rock cores are different due to different types or purposes of drilled holes, and the rock core box with the fixed specification is difficult to adapt to the rock cores with different apertures, so that the rock core box is relatively low in practicability. The rock core box comprises a box body and a plurality of partition plates, wherein the partition plates are all arranged in the box body, adjusting assemblies used for locking the partition plates are arranged between the partition plates and the box body, and the adjusting assemblies are connected with the partition plates. The rock core box has the effect of improving the rock core placing practicability of the rock core box.

The invention discloses a simple and easy trace cell culture and counting device and a manufacturing method of the device. The device comprises a bottom plate and a base plate, wherein the base plateis arranged at the upper end of the bottom plate; the base plate is tightly combined with the bottom plate; the bottom plate is a glass culture dish; the base plate is made of a material with high transparency and good biocompatibility; the base plate is provided with a plurality of through holes which are through up and down; the pore diameter size of each through hole is matched with the size ofa view field needed in a microscope. Compared with an existing cell counting device, the device is low in cost and can be repeatedly used for a plurality of times; the utilized material has good airpermeability, high biocompatibility, strong elasticity and no damages to cells; cell culture is facilitated and cell culturing and cell counting functions can be integrated; the accuracy is high and the device is suitable for counting trace cells; the device is rapid in counting speed and a plurality of samples can be counted on one base plate at the same time.

The invention belongs to the technical field of mass concrete crack control, particularly relates to a construction method of a laminated combined concrete servo formwork, and aims to control mass concrete cracks. The formwork comprises a bottomless box body and a displacement control system; a front side wall layer, a left side wall layer and a rear side wall layer of the bottomless box body are fixed, and a right side laminated formwork group is close to or far away from the bottomless box body under the action of the displacement control system; sliding rails are arranged in the bottoms of the front side wall layer and the rear side wall layer of the bottomless box body; a water stop rubber strip and a sliding assembly are installed at the front end and the middle end of the bottom of the right side laminated formwork group respectively, the elevation of the sliding assembly is consistent with the elevation of the water stop rubber strip, and the sliding assembly is matched with the sliding rails; and the internal stress of mass concrete in different layers of areas is subjected to targeted differential release treatment, the differential temperature stress f<max-n> in each layer of concrete is absorbed and eliminated, the engineering practice is matched, and concrete cracking is prevented.

The invention relates to a manufacturing method of a medical protective sintered breathable material with a sterilization channel. The medical protective sintered breathable material is formed by combining ultra-high molecular weight polyethylene powder, nano-silver ion powder and nano-titanium dioxide powder, the ultra-high molecular weight polyethylene powder selects a powder with the particle size of 360 nm, the nano-silver ion powder selects a powder with the particle size of 120 nm, and the nano-titanium dioxide powder selects a powder with the particle size of 240 nm. The breathable material comprises the raw materials in percentage by volume: + / -75% of the ultra-high molecular weight polyethylene powder, + / -15% of the nano silver ion powder and + / -10% of the nano titanium dioxide powder. In the manufacturing process of the breathable material, raw material proportioning, feeding, die assembly, sintering, heating, heat preservation and cooling are conducted, and then die stripping is conducted. A sintered microporous breathable material finished product with the sterilization channel and full penetration is formed, coronavirus is forced not to pass through, and even if the coronavirus passes through the channel, the coronavirus is fully killed by silver ions under the catalysis of nano titanium oxide, so that the breathable material can be used as a medical protective clothing material.