57results about How to "Strong neutralization ability" patented technology

The invention discloses a demulsifying and flocculating treatment method of machining cutting fluid sewage water, comprising the following steps: conveying cutting fluid sewage water in an acidification pool and adding diluted sulfuric acid for acidification; adjusting the pH to be 3.5-5.5; then conveying in a demulsifying device and adding ferrous sulfate solution for demulsification and precipitation; then conveying in a neutralization pond and adding NaOH solution for neutralization; conveying in a coagulating basin after neutralization and adding a coagulating agent for coagulation; then adding polyacrylamide to a flocculation tank; flowing down by a sieve body through the square rectifying plate of the flocculation tank after flocculating; depositing through the sloped tube stuffing body of a flocculation precipitation pool; discharging out supernatant fluid from a water collection weir; and removing precipitated sludge floccule. The method has the characteristics of integrating oil removal, demulsifying and flocculating, and being thorough for pollution control, good in application effect and economic and efficient; the effluent COD (Chemical Oxygen Demand) of cutting fluid sewage water treated through the method can be decreased to below 500mg/L; and the method can be widely applied to sewage water treatment in machining industry.

The invention relates to an aluminum-plastic compound board sandwich layer material, in particular to a material special for a level-A fire-proof aluminum-plastic board core and a preparation method thereof. An inorganic flame retardant, i.e., magnesium hydroxide is taken as a flame retardant, and a high filling technology is adopted. Aids such as a coupling agent, a dispersing agent, a high-molecular compatilizer and the like are used for performing modification pretreatment on magnesium hydrate, so that the magnesium hydrate flame retardant has superior performance, the filling amount of the flame retardant in a substrate is up to 80-90 percent by weight, which is much higher than the adding amount of a flame retardant of the same type of products, the oxygen index of the product is remarkably increased in comparison to that of the same type of products, and the flame-retarding environmental protection performance is improved remarkably. An aluminum-plastic board core material prepared by adopting the method has the characteristics of freeness from halogen, low thermal value, low smoke, flame retardance, drop resistance, nontoxicity and freeness from pollution.

The disclosure provides isolated antibodies and antigen-binding fragments that bind to the G protein of RSV and which are capable of neutralizing RSV.

The disclosure relates to isolated antibodies and antigen-binding fragments that bind to the G protein of RSV and which are capable of neutralizing RSV A and B subtypes, and the use thereof in the diagnosis, prophylaxis, and/or treatment of RSV infections.

The invention discloses a composite inorganic high-molecular waste water treatment flocculant which is composed of following raw materials, by mass: 40-70% of polyaluminium ferric sulfate, 2-10% of magnesium sulfate, 5-10% of cationic starch, 4-15% of calcium hydroxide, 0.5-3% of activated charcoal, 2-10% of sodium carbonate and 5-15% of polyacrylamide. The flocculant is broad in spectrum, is low-toxic, is low-cost in the raw materials, is good in treatment effects, is simple in operation, is wide in available range, and can form the floc being good in filterability. The flocculant can effectively treats oil-containing waste water, coking wastewater and such industrial waste water, can protect ecologic environment, is less in use amount, can form large alumen ustum, is high in sedimentation speed, is high in removal rate of COD, is less in sludge, is strong in adsorbability on pollutants and is strong in neutralization capacity on micro-acidic waste water.

The invention relates to a low-smoke halogen-free high-flame retardant ethylene propylene rubber material in extrusion molding. A preparation method of the rubber material is as follows: uniformly mixing the di-ethylene propylene rubber and ethylene-vinyl acetate copolymer at 100+/-10 DEG.C by using an open mill or a internal mixer, cooling to the room temperature, orderly adding carbon black, modified mmicron hydroxide, plasticizer, flame retardant synergist, assistant crosslinker and crosslinking agent in proportion, uniformly mixing, adding the rubber compound in a single-screw extruder, controlling the temperature of the extruder body, the screw and the head at 70-90 DEG.C and the revolving speed of the screw within 20-30r/min (revolutions per minute) so that the rubber can be continuously extruded, heating and forming in a direct vulcanizing tank. The retardant ethylene propylene rubber provided by the invention has the advantages of good dynamic performance, low-smoke halogen-free flame retardance and good extrusion performance, and is adapted to a high-flame retardant rubber seal product.

The invention relates to antibodies of a coronavirus or antigen binding fragments of the antibodies, a nucleic acid molecule for encoding the antibodies or the antigen binding fragments thereof, a vector including the nucleic acid molecule, a host cell including the vector, and application of the antibodies or the antigen binding fragments thereof to the aspect of preparation of drugs for treatingor preventing diseases caused by the coronavirus, and the aspect of detection products. The inventors utilize a B cell in-vitro monoclonal culture and high-throughput antibody screening technology toobtain a series of antibodies of the coronavirus and the antigen binding fragments of the antibodies, and the antibodies and the antigen binding fragments thereof have high binding capacity and neutralizing capacity for the SARS-CoV-2 virus, can recognize and bind S1 protein of the SARS-CoV-2 virus and a receptor binding domain (RBD) of the S1 protein, and have very strong affinity, and thus, itcan be speculated that the antibodies and the antigen binding fragments possibly have the binding capacity and neutralizing capacity for other coronaviruses, and coronaviruses possibly appearing in the future, and the antibodies and the antigen binding fragments have good clinical application prospects in the future.

The present invention provides an electropositive and water-based production well treating fluid system. The production well treating fluid system can be made to exhibit electropositivity by using a cationic viscosifier meanwhile matched with a cationic fluid loss additive and optionally matched with a mud-building agent, electrical stabilizing agent, colloid-stabilizing agent, lubricant, oil layer protective agent and/or weighting agent. Such kind of electropositive production well treating fluid can solve better the contradiction between "treating fluid stability" and "bore hole stability", and has features in strong ability of inhibiting the dispersion of clay, good effect of protecting oil-gas reservoir, fast drilling speed, regular shape of bore hole and good resistance to salt. The present invention relates further to a method of preparing said production well treating fluid system and use of the drilling fluid and well completion fluid in petroleum drilling and well completion.

The invention discloses an anti-electrostatic flame-retardant PA (polyamide) color master batch. The anti-electrostatic flame-retardant PA color master batch is prepared from the following raw materials in parts by weight: 50 to 70 parts of PA, 25 to 40 parts of inorganic pigment, 20 to 30 parts of fiber, 4 to 6 parts of composite anti-electrostatic agent, 3 to 5 parts of composite dispersant, 6 to 8 parts of magnesium hydroxide flame-retardant agent, and 1 to 2 parts of compatilizer. The anti-electrostatic flame-retardant PA color master batch has the advantages that the cost is low, the preparation technology is simple, and the anti-electrostatic property and flame-retardant property are excellent; when the anti-electrostatic flame-retardant PA color master batch is used for coloring thePA product, the fire risk of the PA product is reduced, the safety hidden hazards are reduced, and the fire propagation speed is effectively inhibited when a fire accident occurs, so as to provide the valuable time for fire extinguishing, and protect the property safety and body safety of people.

The invention discloses a neutralizing corrosion inhibitor. The neutralizing corrosion inhibitor is prepared from the following compositions in percentage by mass: 1-5% of a dispersing agent, 20-25% of neutralizing organic amine, 4-10% of imidazolinecompounds, 1-5% of alkynol compounds, 4-15% of a nitrogenous adsorption-type corrosion inhibitor, 2-10% of a synergistic agent, and the balance of a solvent. According to the neutralizing corrosion inhibitor, high adsorption is achieved on the metal surface to prevent metal from corroding the cathode and anode conjugate process, and thus the effectof corrosion inhibition is effectively enhanced; a continuous and dense protective film can be formed on the metal surface, and corrosion of a high concentration sulfide, chloride and cyanide is inhibited; a mannich base and phosphorothioate are adopted as the synergistic agent, good thermal stabilization and chemical stability are achieved on the two-phase of water and oil, high adsorption is achieved on the metal surface, high inhibiting effect is achieved on corrosion of hydrogen sulfide and carbon dioxide, and meanwhile, good inhibition is achieved on corrosion of hyperthermia naphthenicacid; and the dosage is greatly lowered while it is ensured that the corrosion inhibition rate is greater than 90%.

The invention discloses a hydrocracking scale inhibitor. The hydrocracking scale inhibitor is characterized by being prepared from the following components by mass: 25-40 percent of cleaning dispersant, 6-12 percent of antioxidant, 5-10 percent of corrosion inhibitor, 0.5-3 percent of detergent, 0.2-1 percent of poly alpha-olefin, and the balance of water; the cleaning dispersant is polyisobutylene succinimide. The hydrocracking scale inhibitor disclosed by the invention has the advantages of low freezing point, small viscosity, and mechanical impurity being less than or equal to 2 percent; the hydrocracking scale inhibitor has a good dispersion effect on catalyst powder in slurry oil, prevents the powder from being coagulated and settled, and can effectively inhibit coking of equipment such as a feed heat exchanger; the hydrocracking scale inhibitor is applied to the feed heat exchanger of a catalytic cracking device for scale inhibition and scale removal, the addition quantity in fresh feed slurry oil is 50-100 ppm, and a scale inhibition rate can reach 85 percent or more; after coking phenomenon of the heat exchanger is changed, the efficiency is improved, heat exchange and reaction are more sufficient, the temperature of the slurry oil returning to a tower is decreased, and the amount of steam generation is increased.

The invention provides an enterovirus 71 (EV71) monoclonal antibody and an application thereof. The monoclonal antibody is derived from an EV71 hybrid tumor cell strain, which has a preservation number of CGMCC (China General Microbiological Culture Collection) No.5330. The monoclonal antibody and related reagents thereof have important significance in promoting the treatment and research of severe cases and death cases caused by EV71 in China, and have extremely important value in further promoting clinical research, epidemic development and passive treatment of EV71.

The invention provides an environment-friendly grafted chloroprene rubber plant cleaning agent and a preparing method thereof. The cleaning agent is prepared from, by weight, 18-22 parts of phosphoric acid, 16-19 parts of glycolic acid, 11-14 parts of ethoxyl ammonium salt of alkylphenol, 11-12 parts of ethylene tetraacetic acid tetrasodium, 11-13 parts of xanthic acid gum, 12-14 parts of methylbenzene, 25-27 parts of methyl ethyl ketone, 10-12 parts of chloroprene rubber DCR-10, 8-9 parts of MMA, 1-3 parts of BPO1, 3-5 parts of BHT, 6-9 parts of phenolic resin, 30-50 parts of water, 4-5 parts of draba, 10-12 parts of cassia twigs, 10-12 parts of radix paeoniae alba, 10-12 parts of dried ginger, 8-10 parts of ephedra herbs, 8-10 parts of pinellia ternate, 5-8 parts of thunberg fritillary bulb, 3-5 parts of asarum sieboldii, 10-15 parts of schisandra chinensis, 8-10 parts of liquorice and 4-5 grains of scented tea. The cleaning agent has the advantages that the preparing technology is simple and convenient, the cleaning agent is not pungent in the cleaning process, plant ingredients in the formula are used for neutralization, and therefore environment-friendly and pollution-free effects are achieved; meanwhile, during application, contamination of petroleum and the like is cleaned mainly; compared with a common cleaning agent, the cleaning agent is good in decontamination effect, high in neutralizing capacity and obvious in use effect.

Provided is an organic electroluminescent device, comprising an anode, a hole injection layer, a hole transport layer, a luminous layer, an electron transfer layer, an electron injection layer, and a cathode stacked in sequence. A cathode layer is formed by a sodium salt layer, a metal doping layer, and a metal sulfide layer. The material of the sodium salt layer is selected from at least one of sodium carbonate, sodium chloride, sodium fluoride, and sodium bromide. The metal doping layer material contains a metal material and a passivation material doped in the metal material. The work function of the metal material is -2.0 eV to -3.5 eV. The passivation material is selected from at least one of silica, alumina, nickel oxide, and copper oxide. The material of the metal sulfide layer is selected from at least one of zinc sulfide, cadmium sulfide, magnesium sulfide, and copper sulphide. The luminescence efficiency of the organic electroluminescent device is high. The invention also provides a method for preparing the organic electroluminescent device.

The invention belongs to the technical field of reutilization of agricultural wastes and particularly relates to a novel process for comprehensively utilizing the agricultural wastes. The novel process comprises the following steps: adding acid into the agricultural wastes and hydrolyzing to obtain aldehyde gas and furfural residues; carrying out filter pressing on the furfural residues and primarily reducing the water content of the furfural residues to be 40%-45%; then drying the furfural residues and further dehydrating the furfural residues; when the water content of the furfural residues is reduced to be 15%-20%, adding fly ash to neutralize; after neutralizing, granulating to obtain biomass fuel; combusting the biomass fuel to be used for biomass power generation; meanwhile, taking solid wastes generated by combustion as raw materials of an organic fertilizer to be reutilized; after filtering and condensing the aldehyde gas, condensing to obtain liquid, namely raw aldehyde; carrying out deacidifying and dehydrating on the raw aldehyde to obtain crude aldehyde; refining the crude aldehyde to obtain finished aldehyde; and carrying out heat exchange on the uncondensed aldehyde gas to replace aldehyde gas heat energy to be used as a heat source for drying the furfural residues, wherein all the percentages are mass percentages.

A lubricant composition including an epoxide compound is disclosed. An additive package including the epoxide compound is also disclosed. The epoxide compound of the lubricant composition acts to improve compatibility of the lubricant composition with a fluoropolymer seal and improve the total base number of the lubricant composition.

A compound, carboxymethylchitasan bismuth zink potassium [(C12H16O8N2R2Zn)m(C12H20O8N2R2)n], for treating digestive ulcer, protecting mucosa of stomach and sobering-up is prepared through reaction between chitosan and Zn, carboxymethylation reaction, reacting on potassium hydroxide and bismuth salt, depositing, washing, filtering, baking and pulverizing.