8 results about "Organic content" patented technology

This invention discloses a deep-ultraviolet nanosecond-gated Raman and LIBS detection system and method for suspended soil particulate matter nutrients, belonging to the field of optical and smart agriculture sensor technology. The system includes: a laser ejection sampling unit for in-situ soil ablation to generate aerosols; an optical tweezers unit for capturing and suspending individual soil particles; a deep-ultraviolet laser excitation unit for emitting nanosecond dual-pulse lasers to excite the same particle to generate Raman and LIBS signals; a spatial heterodyne spectral interferometry imaging unit for slitless, high-throughput coaxial signal collection and the formation of interference fringes; and a timing control unit for time-division multiplexing detection of Raman and LIBS signals through nanosecond gating. This invention eliminates matrix effects and achieves highly sensitive in-situ, non-destructive, and synergistic detection of atomic and molecular information in single soil particles. Furthermore, Raman and LIBS are used to distinguish the organic content and total composition of nitrogen, phosphorus, and potassium, enabling precise quantification of soil nutrients.

The application discloses a preparation method of tetramethoxysilane and application of the tetramethoxysilane, and the preparation method comprises the following steps: S1, adding a suspended agent after impurity removal, silicon powder and a pretreatment catalyst into a reactor, controlling a reaction temperature to be 180-280 DEG C, introducing methanol from the bottom of the reactor, and stirring to obtain a crude product; and S2, rectifying the crude product at 90-120 DEG C to obtain the tetramethoxysilane. By using the suspended agent after impurity removal, the silicon powder, the pretreatment catalyst and the methanol are uniformly dispersed in the suspended agent and react, so that the reaction is more sufficient; the tetramethoxysilane prepared by using the method has extremely low chlorine content, the organic content of the product is greater than 99.99%, the total content of metal element impurities is less than 25 ppm, the total content of potassium, lithium and sodium is less than 2.5 ppm, is suitable for synthesizing high-purity quartz, and the product can be simultaneously applied to chemical vapor deposition and sol-gel method for producing high-purity quartz.

An optical laminate includes a metal nanowire layer and an organic polymer layer, wherein the organic polymer layer has a cross-linking degree greater than or equal to 80% and less than or equal to 100%, and a volatile organic content in the organic polymer layer is less than or equal to 1%. The volatile organic content in the organic polymer layer is defined as a difference between a measured thermal weight loss of the organic polymer layer at a measurement temperature and a measured water content of the organic polymer layer at the measurement temperature. The optical laminate of the present disclosure can meet the specification requirements of a product reliability test and ensure that a touch product containing the optical laminate has high touch sensitivity.

This invention relates to the field of secondary batteries, specifically, to providing an organic electrolyte for sodium-ion batteries, a preparation method thereof, and its application in sodium-ion batteries. The electrolyte for sodium-ion batteries comprises sodium salts, organic solvents, and additives, wherein the additives include nitrile compounds, sulfonates, and organic sodium salts; this electrolyte can generate a dense SEI layer rich in various inorganic elements, ensuring the sodium... + The rapid diffusion of ions, combined with a suitable reduction in the organic content of the SEI, improves the stability of the SEI during long-term cycling. Compared to sodium-ion batteries assembled using phosphate materials as the positive electrode active material, the capacity retention rate is greater than 80% after 1000 cycles at 1C rate.

A flame-retardant film comprising a base sheet containing glass fibers having a basis weight of 296 to 420 grams per square meter and a maximum organic content of 1.5 weight percent, and a thermoplastic elastomer film attached to the base sheet, wherein the film is a thermoplastic elastomer film having a basis weight of 20 to 35 grams per square meter, the thermoplastic elastomer film being attached to the base sheet using an adhesive that is discontinuously present between the film and the sheet at an area density of 25 to 40% and in an amount of 4 to 6 grams per square meter, and the flame-retardant film having a total heat of combustion (PCS) of less than 3 MJ / kg and less than 4 MJ / sqm as measured according to EN ISO 1716.

The present disclosure provides systems and methods that can treat feeds with elevated organic levels, e.g., feeds with ≥300 Pascals (Pa) organic osmotic pressure, with one or more enhanced filter membrane modules, which may be referred to herein as membrane modules or simply modules. Preferably, a filter membrane module consistent with the present disclosure include one or more plate and frame modules, one or more spiral format modules, or a combination of plate a frame and spiral format modules. The systems and methods provided herein can provide reliable performance when used to treat feeds with elevated organic levels.

This invention provides a resource-based treatment process and system for wastewater with high salinity and high organic content. Based on this invention, the treatment of wastewater with high salinity and high organic content can significantly improve salt recovery rate and reduce the generation of impurities. The process includes the following steps: 1) feeding the wastewater into a softening coagulation sedimentation unit for coagulation sedimentation to obtain product water I; 2) feeding product water I into an ultrafiltration resin unit for ultrafiltration and resin adsorption sequentially to obtain product water II; 3) feeding product water II into an organic matter retention unit to obtain a saline stream containing separated organic matter, which becomes product water III; 4) feeding product water III into an advanced oxidation unit to obtain product water IV; 5) feeding product water IV as the raw solution to be treated into a bipolar membrane electrodialysis unit for electrodialysis to obtain acid solution, alkali solution, and desalinated fresh water; 6) feeding the desalinated fresh water into a membrane concentration unit.

This invention provides a method for solvent and salt recovery from polyphenylene sulfide (PPS) synthesis waste liquid. The recovery method includes the following steps: S1, adjusting the pH of the synthesis waste liquid to neutral and controlling the NMP concentration in the synthesis liquid to 10wt%–60wt%; then removing oligomers to obtain a first solution; S2, distilling the mixed solution formed by mixing the first solution and a seed crystal solution to obtain a solid-liquid mixture; the seed crystal solution includes a salt solution, and the solid content in the seed crystal solution is 10wt%–60wt%; S3, separating the solid-liquid mixture to obtain NMP and solid salt. This invention can recover high-purity NMP and solid salt with larger particle size and lower organic content; furthermore, it avoids reactor blockage during the recovery process, facilitating continuous production.