22 results about "Organophosphorous compounds" patented technology

The application provides a flame-retardant modified polyester fiber and a preparation method thereof, and the in-situ polymerization polyester fiber of the application utilizes the flame-retardant superposition of antimony ene nanosheets and flame-retardant additives, the modification and compounding of triethylamine and polyphosphate, is helpful to capture hydroxyl radicals, and improves the overall flame-retardant performance of the fiber when being burned; for the flame-retardant polyester fiber, the organic phosphorus compound has good flame-retardant performance as the flame-retardant additive, and in addition, the modification treatment agent system is beneficial to improving the compatibility between the polyester particles and the flame-retardant additives, thereby improving the stability strength and flame-retardant effect stability of the finished product; the combination twisting mode of the in-situ polymerization polyester fiber and the flame-retardant polyester fiber strengthens the mechanical properties of the overall fiber, and in the process of being subjected to external combustion and melting, the two have good compatibility stability, which is beneficial to the superposition of the flame-retardant performance.

The application provides an organic phosphorus additive, an electrolyte and a preparation method thereof and a lithium ion battery, relates to the technical field of lithium ion batteries, and the organic phosphorus additive is used for the electrolyte of a lithium ion battery, and the organic phosphorus additive comprises at least one organic phosphorus compound containing a P=S double bond.The additive of the lithium ion battery electrolyte of the application is an organic phosphorus compound containing a P=S double bond, which can effectively improve the flame retardant performance of the electrolyte, and on the other hand, can form a protective film on the surface of an electrode, the protective film can inhibit the contact reaction of the electrode and the electrolyte, reduce the decomposition of the electrolyte and the corrosion of the electrode surface, improve the high-voltage resistance of the battery, make the cycle performance more stable, can improve the safety of the battery while ensuring that the battery has good electrochemical performance.

The present application provides a biological product and a method and an application thereof. The biological product is used for the preparation of a therapeutic agent for cancer treatment, and it includes at least one of the recombinant butyrylcholinesterase-albumin (rBChE-albumin) fusion protein and the recombinant butyrylcholinesterase-Fc (rBChE-Fc) fusion protein. The biological product adjusts the balance of acetylcholine and other related metabolic pathways by supplementing at least one of the exogenous rBChE-albumin fusion protein and rBChE-Fc fusion protein to treat cancer. The present invention solves the problem that the extraction and purification of BChE from human serum may not meet the huge demand for cancer treatment. The present application further provides a biological product for neutralizing and degrading nerve agents and organophosphate compounds, hydrolyzing ghrelin, and anti-wrinkle.

The invention belongs to the technical field of olefin polymerization, and discloses a catalyst component for olefin polymerization reaction and a preparation method, a catalyst and application thereof, the method comprises the following steps: (1) reacting a magnesium-containing compound, an organic epoxy compound and an organic phosphorus compound to obtain a magnesium-containing reaction solution; (2) reacting the magnesium-containing reaction liquid with an acyl halide compound; reacting with a first alcohol compound at-55 to 20 DEG C, and reacting with a first titanium-containing compound to obtain a catalyst component; optionally, adding a first electron donor compound before and / or after the reaction with the first titanium-containing compound, and reacting; optionally, the method also comprises the following steps: (3) reacting the catalyst component obtained in the step (2) with a second titanium-containing compound to obtain the catalyst component, optionally, a second electron donor compound is added before and / or after the reaction with the second titanium-containing compound, and the reaction is carried out. The polymer powder obtained by adopting the catalyst provided by the invention has obviously improved bulk density.

The present invention relates to a process of hydrogenating an alkyne selectively to an alkene by hydrogen using a hydrogenation catalyst which is palladium supported on a carrier in the presence of an additive mixture of an organic phosphorus compound (AP) and an organic sulphur compound (AS).

The invention discloses a synthetic method of bis (1-methylheptyl) methylphosphonate, and belongs to the technical field of organic phosphorus compound preparation, and the synthetic method comprises the following specific steps: S1, adding phosphorus trichloride and a solvent into a reaction container, putting a reaction system into an ice-water bath, and dropwise adding sec-octanol into a phosphorus trichloride solution; after the reaction is finished, removing the solvent and unreacted sec-octanol through reduced pressure distillation to obtain an intermediate di (1-methylheptyl) phosphonite; s2, adding the di (1-methylheptyl) phosphonite obtained in the step S1 into an alkali solution, and putting a reaction system into an ice-water bath; after the reaction is completed, adding a methylation reagent into the system; and after the reaction is finished, washing the reaction liquid with water until the reaction liquid is neutral, and removing volatile components through reduced pressure distillation to obtain the target product methyl phosphonic acid di (1-methylheptyl) ester. The method provided by the invention has the advantages of high safety and strong process controllability, and is suitable for an alternative synthesis route of industrial production.

The invention provides a catalyst component for olefin polymerization, which comprises a reaction product of a magnesium compound, an organic anhydride compound, a titanium-containing compound, an acetate compound, an alcohol compound, a long carbon chain monoester compound and an optional aromatic ester compound, the magnesium compound is a compound formed by dissolving magnesium halide in a solvent system containing an organic epoxy compound and an organic phosphorus compound. The method can be used for preparing spherical or sphere-like solid particles (solid catalyst components) containing magnesium and titanium. The polymerization activity and hydrogen regulation sensitivity of the catalyst particles are high, polyethylene powder with high stacking density can be obtained through polymerization, and the requirement of an industrial production device for the catalyst is met.

The invention provides a catalyst component for olefin polymerization, a preparation method of the catalyst component, a catalyst and application of the catalyst component. The catalyst component comprises a magnesium compound, an organic anhydride compound, an acetate compound, an alcohol compound, a titanium-containing compound and a reaction product of an internal electron donor. The magnesium compound is a compound formed by dissolving magnesium halide in a solvent system containing an organic epoxy compound and an organic phosphorus compound. The catalyst particles are high in polymerization activity and narrow in particle size distribution, polyethylene powder which is high in stacking density, good in particle morphology, high in molecular weight and narrow in molecular weight distribution can be obtained through polymerization, and the requirement of an industrial production device for the catalyst is met.

The invention discloses a method for preparing low-aluminum phosphoric acid by coupling acidolysis with micro-nano bubbles, which comprises the following steps: mixing and reacting ground phosphate rock, phosphoric acid and a dispersing agent, adding an air flotation agent, introducing the micro-nano bubbles, reacting, and separating to obtain slurry foam and slurry; performing solid-liquid separation on the slurry foam to obtain clear liquid and a filter cake, recycling the clear liquid, and drying the filter cake as a phosphate fertilizer production raw material for recycling; reacting the slurry with sulfuric acid, and growing grains to obtain low-aluminum phosphoric acid and phosphogypsum; wherein the air flotation agent is prepared from an organic phosphorus compound, alkyl trimethyl quaternary ammonium salt and an organic solvent according to the volume ratio of (3-5): (0.5-1): (4.5-6). Through coupling of a micro-nano bubble process and acidolysis, the content of Al2O3 in phosphoric acid is reduced, and the impurity removal difficulty is remarkably reduced.

This provides an inexpensive method for purifying sulfuric acid. [Solution] The present invention provides a method for purifying sulfuric acid, comprising an extraction step of extracting iron from sulfuric acid using an acidic organophosphorus compound, wherein the acidic organic extractant comprises at least one selected from the group consisting of 2-ethylhexyl 2-ethylhexyl phosphonate and bis(2,4,4-trimethylpentyl)dithiophosphinic acid. This method for purifying sulfuric acid may also include a back-extraction step of back-extracting the extract obtained through this extraction step to obtain a back-extract containing iron, a dilution step of diluting concentrated sulfuric acid with water, and an oxidation step of oxidizing sulfuric acid with an oxidizing agent.

This invention belongs to the field of flame retardant technology, specifically a novel halogen-free phosphorus-nitrogen synergistic flame retardant for optical cable materials. By weight, it comprises: 35-50 parts of a phosphorus-based flame retardant main agent, 25-40 parts of a nitrogen-based flame retardant main agent, 5-15 parts of a synergistic enhancer, 3-8 parts of a compatibility modifier, 2-5 parts of an anti-exudation agent, and 1-3 parts of a heat stabilizer; the phosphorus-based flame retardant main agent is a compound of halogen-free organophosphorus compounds and inorganic phosphorus compounds; the nitrogen-based flame retardant main agent is a compound of melamine derivatives and low-free-formaldehyde urea-formaldehyde resin; and the synergistic enhancer is a compound of nano-magnesium hydroxide and organically modified montmorillonite. The flame retardant of this invention is halogen-free and environmentally friendly, complies with international and domestic environmental regulations, has high flame retardant efficiency, and can achieve UL94 V-0 rating for optical cable materials with an addition of 15%-20%. It also has good compatibility with optical cable material substrates, excellent thermal stability, and controllable cost, making it suitable for large-scale industrial production. It can be widely used in the flame retardant modification of optical cable sheaths and insulation layers in densely populated indoor places such as office buildings and residences.

The invention provides a catalyst component for olefin polymerization, a preparation method of the catalyst component, a catalyst and application of the catalyst component. The catalyst component comprises a reaction product of a magnesium compound, an organic anhydride compound, a titanate compound, an alcohol compound and a titanium halide. The magnesium compound is a compound formed by dissolving magnesium halide in a solvent system containing an organic epoxy compound and an organic phosphorus compound. The polymerization activity of the catalyst particles is high, polyethylene powder with high bulk density can be obtained through polymerization, the fine powder content of the polymer powder is low, and the requirement of an industrial production device for the catalyst is met.

The present invention relates to a reactive diluent system for use in a composite resin comprising (a) a reactive diluent composition comprising or consisting of an organophosphorus compound, and (b) an accelerator system comprising (i) at least one iron salt or complex; (ii) at least one transition metal salt or complex selected from cobalt and copper; and (iii) optionally at least one solvent.

The invention discloses an olefin polymerization catalyst solid component, a preparation method thereof and a catalyst system. The preparation method comprises the following steps: in the presence of a dispersing agent, carrying out first contact reaction on alkoxy magnesium and a hydrogen halide alcohol solution to obtain dispersed slurry; then adding an organic epoxy compound and an organic phosphorus compound, and carrying out a second contact reaction to form a uniform solution; treating the obtained uniform solution with an electron donor compound, then adding a titanium halide, carrying out a third contact reaction, and separating out a magnesium / titanium-containing solid precipitate mixture; carrying out fourth contact reaction on the mixture and an internal electron donor compound; and separating to obtain a solid component, and carrying out fifth contact reaction on the solid component and a titanium halide to obtain the catalyst solid component. According to the preparation method, alkoxy magnesium which is not limited by particle morphology is used as an initial raw material, uniform dispersion of alkoxy magnesium is realized through the hydrogen halide alcohol solution, and the polyolefin catalyst which is good in particle morphology and high in polymerization activity can be prepared.

The application discloses a catalyst, which comprises an active component, an auxiliary A, an auxiliary B and a catalyst carrier, the active component comprises a noble metal element and a copper element, the auxiliary A is an organic phosphorus compound, and the auxiliary B is a sulfur-containing compound and / or a nitrogen-containing compound, wherein the active component, the auxiliary A and the auxiliary B are directly loaded on the catalyst carrier. The catalyst has good acetylene conversion rate, excellent vinyl chloride selectivity and better stability in the process of preparing vinyl chloride monomer through acetylene hydrochlorination reaction, and has a good industrial application prospect.

The application discloses a synthesis method of a dialkyl hypophosphite flame retardant, relates to the technical field of organic phosphorus compound preparation, and has the following scheme: in a pressure-resistant reaction kettle replaced by inert gas, phosphorus-containing gas and olefin are subjected to addition reaction under initiation conditions to obtain an addition product; the addition product is then oxidized and the system pH is adjusted; subsequently, the addition product is reacted with a 2-4 valence metal salt solution to form a salt, and the dialkyl hypophosphite flame retardant is obtained through separation, washing and drying. The dialkyl hypophosphite flame retardant has the following beneficial effects: the phosphorus-containing gas component is used as a starting phosphorus-containing source, the phosphorus-containing component is introduced into a target flame retardant structure formation path through addition-oxidation-salt formation cascade conversion, the path can be adapted to different initiation modes, olefin forms and solvent systems, and the process has good controllability; under the same phosphorus-containing raw material consumption conditions, the yield of the target product remains high and relatively concentrated, indicating that the reaction is smoothly connected; and the obtained product has good thermal stability and can meet the application requirements of the flame retardant.

The invention relates to the technical field of batteries, in particular to a battery and an electronic device.The battery comprises a negative plate, a positive plate and electrolyte, a tab groove is formed in a positive active material layer, a positive tab is contained in the tab groove, and gummed paper is arranged on the surface of the positive tab; a groove is formed in the negative active material layer, the tab groove and the groove are oppositely arranged along the thickness direction of the positive plate, and an insulating glue layer is arranged in the groove; the sizes of the gummed paper along the width and length directions of the battery are respectively greater than those of the groove and the tab groove along the width and length directions of the battery; the electrolyte comprises an organic phosphorus compound containing cyano groups. According to the invention, the transmission efficiency difference between lithium ions around the tab protection adhesive paper and lithium ions at other positions can be shortened, the utilization rate of active substances around the tab adhesive is improved, and the long cycle performance, the fast charge performance and the lithium precipitation of the battery are improved.

The invention discloses a preparation process of environment-friendly regenerated plastic particles, belongs to the technical field of plastic recovery, and is used for solving the problem of waste gas pollution in a polypropylene material recovery process and the technical problem that the thermal stability of a regenerated material needs to be further improved in the prior art. According to the invention, an end group functionalized phosphorus-nitrogen cross-linked compound, a methacrylic acid organophosphorus compound and an organic-inorganic hybrid silicon-oxygen compound are cooperatively introduced into a regeneration processing system, so that each functional component forms a continuous action path in the aspects of molecular chain end stabilization, interface transition regulation and control, structural support maintenance and the like; according to the technology, non-methane hydrocarbon emission in the regeneration processing process is reduced, meanwhile, the heat stability, flame retardance and medium resistance of the regenerated polypropylene material are synergistically improved, and the structural integrity and stability of the material in the processing and using processes are effectively maintained.

The invention discloses a method for selectively degrading organophosphorus pollutants based on copper-based charcoal non-free radical activated hydrogen peroxide, and belongs to the technical field of organophosphorus wastewater treatment. Comprising the following steps: adjusting the pH value of the wastewater containing the organophosphorus pollutants to 5-11, then adding a copper-based charcoal catalyst, stirring and dispersing, and then adding H2O2 to carry out non-free radical activation reaction to degrade the organophosphorus pollutants. In the organophosphorus degradation process, organophosphorus is combined with Cu sites through phosphonic acid groups or carboxyl groups to form a Cu (III)-organophosphorus complex for selective oxidation, Cu (III) in the complex serves as a strong oxidant to attack C-P bonds, and inorganic phosphate is generated; and in the process of activating H2O2 by the CuBC catalyst, oxygen vacancies are used as electron transfer channels, so that charge transfer resistance is reduced, electron transfer is accelerated, and Cu (I) / Cu (III) circulation is accelerated.

The application provides a flame-retardant PMMA resin suitable for a molding process, a fiber-reinforced flame-retardant PMMA resin composite and a preparation method thereof, and belongs to the technical field of high polymer flame-retardant materials.The flame-retardant PMMA resin is prepared from raw materials including the following components by weight: MMA slurry 30-85 parts, monomer copolymerizable with MMA 1-15 parts, surface-modified hydroxide 10-60 parts, organic phosphorus compound 5-15 parts, melamine and derivatives thereof 5-15 parts, surface-modified ammonium polyphosphate 5-20 parts, and initiator 0.1-4 parts.The flame-retardant PMMA resin and the composite prepared by the application have excellent flame-retardant function and good mechanical properties.

The invention belongs to the technical field of flame retardants, and discloses a hydrazide-based phosphorus-nitrogen synergistic reaction type flame retardant and a preparation method and application thereof, and in the structural formula of the hydrazide-based phosphorus-nitrogen synergistic reaction type flame retardant, R1 and R2 are independently selected from methyl, ethyl or phenyl; r3 is a p-phenyl group, an m-phenyl group or (CH2) y; r4 is a p-phenyl group, an m-phenyl group or (CH2) m; the preparation method comprises the following steps: carrying out amidation reaction on dihydrazide and an organic phosphorus compound, and then carrying out polycondensation to prepare the hydrazide-based phosphorus-nitrogen synergistic reaction type flame retardant. According to the application, the hydrazide-based phosphorus-nitrogen synergistic reaction type flame retardant, terephthalic acid, ethylene glycol and a catalyst II are mixed and then subjected to an esterification reaction and a condensation polymerization reaction in sequence, and therefore the hydrophilic flame-retardant polyester is prepared. The preparation method is simple and safe in preparation process flow and free of toxic organic reagents, and the prepared hydrazide-based phosphorus-nitrogen synergistic reaction type flame retardant has high flame retardant efficiency, good durability and excellent mechanical performance and hydrophilic performance.

The invention provides an alloy-resin-based hydrophobic membrane pre-implanted with an organic phosphine compound and a preparation method thereof.The preparation method comprises the following steps that aluminum alloy serves as an anode, a platinum electrode or a graphite electrode serves as a cathode, an electrolyte is adopted, anodic oxidation is conducted, and an anodized aluminum alloy substrate is obtained; the preparation method comprises the following steps: dissolving resin and hydrophobic alumina nanoparticles in a solvent to obtain a resin-based hydrophobic precursor solution, dropwise adding the precursor solution on the surface of an aluminum alloy substrate, standing, coating, and heating to obtain the hydrophobic coating. According to the hydrophobic membrane, the interface of an aluminum alloy substrate and the super-hydrophobic membrane is strengthened by pre-implanting an organic phosphine compound, organic phosphine compound molecules are implanted into the surfaces of aluminum alloy holes, and a plurality of phosphonic acid groups of the molecules and aluminum ions form a high-bond-energy stable annular chelate through polydentate coordination. And anchoring the organic phosphonic acid molecules on the surface of the aluminum alloy substrate.