7 results about "Inorganic phosphate" patented technology

The present application belongs to the technical field of luminescent materials, and particularly relates to a photoluminescent flexible film and a preparation method and application thereof, the preparation method comprising the following steps: taking compounds corresponding to elements contained in a chemical formula of inorganic phosphate, mixing the compounds according to stoichiometric ratios corresponding to the chemical formula to obtain a mixture; dissolving phenolic aldehyde resin in ethanol, then uniformly mixing the phenolic aldehyde resin with the mixture, drying and solidifying; pre-burning under a protective atmosphere; then heating and calcining in an oxygen-containing atmosphere to obtain a photoluminescent material, loading the material on modified vulcanized silicon rubber to obtain a flexible film. The photoluminescent material and the flexible film prepared based on the material exhibit excellent linear response (R 2 =0.9897) in a high dose range (>200 Gy), information storage stability is more than 50 days, and has good reversible cyclic use performance.

This invention discloses a cerium-iron-nitrogen-doped carbon nanozyme, its preparation method, and its applications, belonging to the field of environmental pollutant detection technology. The cerium-iron-nitrogen-doped carbon nanozyme disclosed in this invention is composed of a two-dimensional planar iron-nitrogen-carbon support and a surface-loaded hexanuclear cerium cluster catalytic center. This cerium-iron-nitrogen-doped carbon nanozyme possesses advantages such as structural stability, well-defined and diverse catalytic activities, and strong specificity for target analytes. It can efficiently catalyze the characteristic reactions of organophosphorus pesticides by mimicking the activities of various natural enzymes, achieving rapid and highly sensitive detection of these pesticides and efficiently degrading and recovering inorganic phosphates from organophosphorus pesticide residues.

A method for multi-stage classification and recovery of rare earth elements (REEs) includes the steps of: using humic acid (HA), iron (hydr) oxides and inorganic phosphate to perform multi-stage classification and recovery of a full suite of REE solution, and obtaining a solution rich in light rare earth elements (LREEs), a solution rich in middle rare earth elements (MREEs) and a solution rich in heavy rare earth elements (HREEs).

This invention provides a permeability-enhancing agent with excellent antifoaming properties and a treatment agent for nonwoven fabric manufacturing. The permeability-enhancing agent comprises compounds (A) and (B), and includes at least one selected from compounds (C), (D), and inorganic phosphate (IN). The acid value of the non-volatile component of the above-mentioned permeability-enhancing agent is 0.5~450 mgKOH / g, and the ratio of the peak areas [P1 / (P1+P2+P3)] obtained by determining the non-volatile component of the above-mentioned permeability-enhancing agent using nuclear NMR is 40%~100%. The nonwoven fabric manufacturing treatment agent comprises compound (A) and compound (B), and contains at least one selected from compound (C), compound (D), and inorganic phosphate (IN). The non-volatile component of the nonwoven fabric manufacturing treatment agent has an acid value of 0.5 to 450 mg KOH / g, and the ratio of the peak areas [P1 / (P1+P2+P3)] obtained by determining the non-volatile component of the permeability imparting agent by P-nuclear NMR is 40% to 100%.

This application relates to the field of vanadium redox flow battery energy storage technology, and discloses a high-concentration, wide-temperature-range composite vanadium electrolyte, its preparation method, and a vanadium redox flow battery. The electrolyte has an average valence state of 3.5 and is composed of a vanadium source, sulfuric acid, methanesulfonic acid, inorganic phosphate stabilizer, organic multidentate phosphonic acid complexing agent, halide conductive antifreeze agent, polyether-based antipermeation ligand, polycarboxylic acid dispersant, and deionized water. The total vanadium concentration is 2.2~2.8 mol / L. It is prepared by mixing acid solution, electrolytic reduction to prepare base solution, adding additives, and dissolving and filtering. It can be used for both positive and negative electrodes of the battery. The operating temperature range is −10℃~60℃, with a coulombic efficiency ≥98.5%, energy efficiency ≥86%, and 200-cycle capacity retention ≥92%. Through the synergistic effect of the mixed acid system and the five-element additives, it has the advantages of high concentration, wide temperature range, low vanadium shuttle, and high interfacial activity. The preparation is simple and versatile, which is conducive to the high performance and large-scale application of vanadium redox flow batteries.

The application discloses a kind of steel ship high-pressure water jet rust removal surface with green rust conversion anticorrosion primer bottom integrated function coating and its preparation method and application, belong to steel structure metal material surface corrosion protection technical field.The coating is two-component normal temperature curing system, A component includes epoxy modified resin 50-65%, rust conversion composite agent 8-15% of organic acid and inorganic phosphate compound, anti-rust pigment filler 15-25% containing graphene oxide, B component is polyamide 650 curing agent, when A, B component mass ratio is 100:(12-18).The application realizes rust conversion time ≤30min, rust conversion rate ≥96% by the synergistic effect of rust conversion composite agent and anti-rust pigment filler, coating adhesion reaches 1 level, resistant to neutral salt spray 1200h, VOC content ≤550g / L.The coating can be directly coated on the rust surface after high-pressure water jet rust removal, without secondary rust removal, with primer and intermediate paint function, can greatly shorten construction period, suitable for steel ship and other marine steel structure as long-acting anticorrosion protection matched anticorrosion functional coating.

This invention relates to the fields of genetic engineering and protein engineering modification technology, specifically providing a heat-resistant neutral phytase mutant. The mutant exhibits significantly enhanced heat resistance and can be widely used in aquatic feed, thereby reducing the addition of inorganic phosphates in feed, lowering aquaculture costs, and effectively reducing environmental pollution from aquatic animal fecal phosphorus.