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

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 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 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 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 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 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 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 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 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 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.