4 results about "Potassium Metaphosphate" patented technology

The present application relates to the technical field of lithium ion battery recycling, in particular to a method for stripping lithium ion battery pole piece and application thereof. The method for stripping lithium ion battery pole piece comprises: immersing the pole piece into a mixed solution containing a stripping agent and a stripping aid for reaction, and obtaining the separated active material layer and the current collector layer after a period of time; the stripping agent comprises a carboxylic acid containing at least two carboxyl groups; the stripping aid comprises at least one of sodium fluoride, potassium fluoride, ammonium fluoride, phosphoric acid, sodium phosphate, monosodium phosphate, sodium metaphosphate, potassium phosphate, monopotassium phosphate, potassium metaphosphate, ammonium phosphate, disodium ethylenediaminetetraacetate, tetrasodium ethylenediaminetetraacetate, inositol hexaphosphate and its salt, inositol pentaphosphate and its salt, inositol tetraphosphate and its salt, and inositol triphosphate and its salt. The method can realize the separation of the active material and the current collector, the hydrogen production amount is small during the whole stripping process, the current collector obtained after stripping is intact, the separation time is short, and the separation efficiency is high.

The invention discloses a method for preparing a carbon-based phosphorus-potassium fertilizer by using silicon-rich biomass, and relates to a preparation method of the carbon-based phosphorus-potassium fertilizer. The invention aims to solve the technical problems that the reversal effect of existing biochar on phosphorus fixation in saline-alkali soil is poor, and especially the improvement effect on soil with low phosphorus content is not obvious. The agricultural straw waste is used as a raw material, phosphoric acid microwave co-pyrolysis and atmosphere regulation co-pyrolysis technologies are combined, the process is simple and convenient, the cost is low, the large-scale production potential is achieved, in the preparation process, original components such as KCl and K2CO3 in the straw can react with phosphoric acid to generate compounds such as potassium metaphosphate with fertilizer efficiency, the effectiveness of phosphorus and potassium is further improved, and the production cost is reduced. Absorption of crops to phosphorus, potassium, silicon and other elements is promoted, the physical structure of saline-alkali soil can be effectively improved, the volume weight is reduced, the stability of aggregates is improved, alkalinity is neutralized, and soil fertility, water holding capacity and carbon sequestration potential are synergistically enhanced.

This invention discloses a low-sodium compound phosphate for moisture retention in meat products and its preparation method. The low-sodium compound phosphate comprises the following components by weight: 52-68 parts potassium pyrophosphate; 18-28 parts sodium tripolyphosphate; 6-18 parts potassium metaphosphate; and 4-12 parts coating component. The coating component includes trehalose, potassium gluconate, and maltodextrin, with trehalose accounting for 35%-60%, potassium gluconate for 8%-22%, and maltodextrin for 25%-50%. The low-sodium compound phosphate adopts a core-shell composite particle structure, with the core layer comprising potassium pyrophosphate, sodium tripolyphosphate, and potassium metaphosphate, and the shell layer comprising the coating component. The sodium content in the low-sodium compound phosphate, calculated as sodium oxide, is 4.0%-8.5%. This invention can significantly reduce the sodium content, effectively mask the bitter flavor of potassium salts through microstructural design, and simultaneously possesses excellent moisture-proof and anti-caking properties and a synergistic effect of high water retention.

The application discloses a production method of expanded potassium dihydrogen phosphate, relates to the technical field of potassium dihydrogen phosphate production, and uses a production process of "neutralization-spray drying-secondary drying" to process, under the premise that energy consumption is controllable, produces expanded potassium dihydrogen phosphate products which can be quickly and completely dissolved in water, the water-soluble solution is clear, nozzles are not blocked, and the spraying efficiency is improved, through controlling the drying temperature, the generation of by-products (potassium polyphosphate) can be effectively prevented, therefore, the application has the advantages of simple production process, short process, suitability for large-scale use, green environmental protection, stable product quality, and the like, in addition, the obtained product is completely dissolved in water, has high clarity, is beneficial to spraying or unmanned aerial vehicle flying seeding, and thus the application efficiency is greatly improved.