8 results about "High phosphate" patented technology

The application specifically discloses a phosphate-based positive electrode material and a preparation method and application thereof. The phosphate-based positive electrode material comprises base particles and a carbon coating layer coated on the surface of the base particles; the chemical formula of the base particles is Li x M y PO4, 0.96≤x≤1.08, 0.96≤y≤1, M comprises at least one of Fe and Mn; wherein, the M site is doped with a first metal element, the first metal element comprises at least one of Ti, V, Cr, Co, Ni, Nb, Mo and W; and / or, the Li site is doped with a second metal element, the second metal element comprises at least one of Mg and Zr; the carbon coating layer comprises a carbon material, and the degree of disorder I D / I G of the carbon material is ≤1.2. The application has the advantages of improving the electrochemical performance of the phosphate-based positive electrode material and reducing the ion elution rate thereof.

The application relates to the technical field of lithium ion batteries, in particular to a phosphate-based positive electrode material, a preparation method thereof and a lithium ion battery. The preparation method comprises the following steps: dispersing a primary semi-product of the phosphate-based positive electrode material in a solvent, adding an etching agent to etch the particle surface of the primary semi-product to obtain a secondary semi-product; the crystallinity of the particle surface of the primary semi-product is lower than the crystallinity of the particle interior; mixing the secondary semi-product and additional raw materials of the phosphate-based positive electrode material, and then performing secondary sintering to obtain a finished product of the phosphate-based positive electrode material; the raw materials comprise an organic iron source; the amount of the etching agent is 1.2 wt% to 8 wt% of the primary semi-product. The phosphate-based positive electrode material prepared by the preparation method significantly improves the mass transfer problem of the lithium interface, improves the electronic conductivity, and effectively improves the cycle stability of the phosphate-based positive electrode material.

This invention belongs to the field of crankshaft technology, and specifically relates to a crankshaft, its manufacturing method, and its applications. The crankshaft of this invention includes a crankshaft body and a composite layer disposed on the surface of the crankshaft body; the composite layer includes a nitrided layer, a phosphate layer, and a lubricating layer arranged sequentially from the inside out. The nitrided layer improves the fatigue strength and wear resistance of the crankshaft. The phosphate layer formed on the nitrided layer serves as a base layer, providing a good adhesion foundation for the lubricating layer and improving the bonding between the phosphate layer and the lubricating layer, i.e., improving the bonding between the lubricating layer and the crankshaft body, allowing the lubricating layer to better perform its function of reducing friction and wear. When the crankshaft-bearing friction pair enters the boundary lubrication state, the lubricating layer is consumed first, forming a solid lubrication transfer film on the bearing surface. This avoids direct contact between the crankshaft's nitrided layer and the bearing, while also achieving a friction-reducing and lubricating effect, thus improving the wear of the crankshaft-bearing friction pair.

The invention is applicable to the technical field of microorganisms, and provides a saline-alkaline tolerant phosphate-solubilizing algal-inhibiting bacterium and application thereof.The phosphate-solubilizing algal-inhibiting bacterium is bacillus subtilis (Bacillus sp.) JL-10 and is preserved in the China General Microbiological Culture Collection Center on October 17, 2025, the preservation address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing, and the preservation number is CGMCC NO.36241. The saline-alkaline tolerant phosphate-solubilizing algal-inhibiting bacterium has the advantages that the saline-alkaline tolerant phosphate-solubilizing algal-inhibiting bacterium can be applied to saline-alkaline tolerant phosphate-solubilizing algal-inhibiting bacterium can be applied to saline-alkaline tolerant phosphate-solubilizing algal-inhibiting bacterium; according to the invention, a novel bacterial strain with phosphorus-dissolving and algae-inhibiting functions is obtained through separation, the bacterial strain has relatively strong phosphorus-dissolving capacity, and the highest phosphorus-dissolving amount of the bacterial strain is as high as 112.65 mg / L measured by a molybdenum-antimony resistance colorimetric method; the compound has a remarkable inhibition effect on algae such as spirogyra, and the inhibition rate can reach 74.89% or above; meanwhile, the strain has strong colonization ability and good soil affinity in a saline-alkali environment, and can effectively promote the growth of rice in saline-alkali soil, which is found for the first time that the bacillus subtilis has the comprehensive effects of efficiently dissolving phosphorus, inhibiting the growth of spirogyra and promoting the growth of rice in the saline-alkali soil environment.

This invention provides an electrochemically regulated phosphate adsorption-desorption method, comprising: 1) Phosphate adsorption: a first electrolytic cell using a tetravalent cerium electrode as the cathode and phosphorus-containing wastewater as the electrolyte for a first electrolytic treatment; after the first electrolytic treatment is completed, the circuit is disconnected; and after the phosphorus concentration in the phosphorus-containing wastewater remains constant, phosphorus-free purified water and a trivalent cerium-phosphorus enriched electrode are obtained; 2) Phosphate desorption: a second electrolytic cell using a trivalent cerium-phosphorus enriched electrode as the anode for a second electrolytic treatment; after the second electrolytic treatment is completed, the circuit is disconnected; and after the phosphorus concentration in the electrolyte of the second electrolytic cell remains constant, a tetravalent cerium electrode and a phosphorus-rich recovery solution are obtained; the time for both the first and second electrolytic treatments is greater than 900 s. This method offers high process flexibility, a wide range of desorption solutions, and can achieve phosphate desorption in low-concentration desorption solutions, exhibiting high phosphate removal and recovery rates, as well as excellent cyclic adsorption-desorption performance.

Aspects of the present disclosure relate to methods of cultivating genetically altered plants with increased activity of one or more of a NODULATION SIGNALING PATHWAY 1 (NSP1) protein or a NODULATION SIGNALING PATHWAY 2 (NSP2) protein that have increased mycorrhization and / or promoted symbiotic responses under high phosphate and / or high nitrate conditions. Further aspects of the present disclosure relate to methods of cultivating genetically altered plants with increased activity of a C-TERMINALLY ENCODED PEPTIDE (CEP peptide) that have increased mycorrhization and / or promoted symbiotic responses under high phosphate and / or high nitrate conditions. In addition, aspects of the present disclosure relate to methods of cultivating these plants that include exogenous application of strigolactones, karrikins, and / or CEP peptides to increase mycorrhization and / or promote symbiotic responses under specific nutrient conditions.

Aspects of the present disclosure relate to methods of cultivating genetically altered plants with increased activity of one or more of a NODULATION SIGNALING PATHWAY 1 (NSP1) protein or a NODULATION SIGNALING PATHWAY 2 (NSP2) protein that have increased mycorrhization and / or promoted symbiotic responses under high phosphate and / or high nitrate conditions. Further aspects of the present disclosure relate to methods of cultivating genetically altered plants with increased activity of a C-TERMINALLY ENCODED PEPTIDE (CEP peptide) that have increased mycorrhization and / or promoted symbiotic responses under high phosphate and / or high nitrate conditions. In addition, aspects of the present disclosure relate to methods of cultivating these plants that include exogenous application of strigolactones, karrikins, and / or CEP peptides to increase mycorrhization and / or promote symbiotic responses under specific nutrient conditions.

This invention discloses a method for preparing ferric phosphate, comprising the following steps: pretreating wastewater from the ferric phosphate production process; concentrating the pretreated filtrate through adsorption with a phosphorus removal resin to obtain a regenerated solution; concentrating the regenerated solution through nanofiltration for salt separation to obtain a concentrated solution; and mixing the concentrated solution with a phosphate salt solution from ferric phosphate production to prepare a phosphate salt mixed solution for use in ferric phosphate production. This invention utilizes chemical precipitation, filtration, reverse osmosis combined with MVR to recover pure water, and then employs phosphorus removal resin adsorption regeneration and NF membrane salt separation to concentrate the phosphate salt. This results in a high phosphate salt concentration, low impurities, and reuse of the relatively scarce phosphorus source, reducing raw material costs and maintenance costs for ferric phosphate production enterprises by 8.0%–20.0%, improving production efficiency, and making it a suitable measure for enterprises to reduce costs, increase efficiency, and improve product performance.