8 results about "Ethylene diamine" patented technology

The present invention are co-crystals of Uric Acid with increased solubility with respect to crystals of Uric Acid, suitable for the pharmaceutical use. The invention comprises co-crystals with L-lysine, L-arginine, ethylene diamine, and tromethamine as co-formers, pharmaceutical compositions thereof and their therapeutical use in the prevention or treatment of cerebrovascular diseases.

The application relates to the technical field of insecticidal compositions. The application discloses a composition containing chlorantraniliprole and dinotefuran as well as a preparation method and application thereof. Raw material composition of the composition comprises chlorantraniliprole, dinotefuran, d-cycloprothrin, d-phenothrin, azocyclotin, polyethylene diamine, sophoraflavescens aiton, grapefruit peel extract, capsicum annuum extract, plant essential oil and solvent. The preparation method comprises the following steps: S1, mixing chlorantraniliprole, dinotefuran, d-cycloprothrin and azocyclotin, and stirring; S2, adding polyethylene diamine and solvent, and stirring and mixing; S3, adding sophoraflavescens aiton, grapefruit peel extract, capsicum annuum extract and plant essential oil, stirring and mixing, and preparing the composition. The application also discloses application of the composition in the field of pest control. The prepared composition containing chlorantraniliprole and dinotefuran can effectively improve the pest control effect and has a long effective duration.

This invention relates to the field of comprehensive utilization of biomass resources, and discloses a pretreatment process for the efficient resource utilization of crop straw, comprising: mixing and impregnating crushed straw particles with a high-concentration solubility buffer; adding solid tetraacetylethylenediamine and flowing hydrogen peroxide solution for oxidation reaction; performing hot solid-liquid separation under no-cooling conditions, washing the filter cake to obtain cellulose enrichment, and combining the washing liquid with primary hot black liquor to obtain mixed black liquor; cooling the mixed black liquor to induce a phase change, separating lignin and cold mother liquor, discharging part of the cold mother liquor, and recycling the remaining mother liquor. This invention improves the separation efficiency of straw components by constructing a stable pretreatment reaction microenvironment through composition; prevents secondary lignin adhesion and achieves lignin precipitation by controlling the hot separation and cold phase change operations; and reduces the overall water and reagent consumption of the process by combining the mother liquor circulation design.

This invention discloses a flotation separation method for collecting galena and inhibiting sphalerite and pyrite, achieving efficient separation of galena from sphalerite and pyrite in a low-alkaline pulp environment, belonging to the field of mineral beneficiation technology. This invention uses N-hydroxyethylethylenediaminetriacetic acid as an inhibitor of sphalerite and pyrite at a low alkalinity of pH 7.5-9.5, and one or two of sodium diethyldithiocarbamate, sodium ethyl xanthate, and xylenol dithiophosphate as collectors for galena. Under low dosage conditions, it achieves simultaneous inhibition of sphalerite and pyrite and effective collection of galena, offering advantages of high efficiency, simple process, economy, and environmental friendliness. It is particularly suitable for silver-bearing, high-sulfur, low-grade lead-zinc ores and has broad application prospects.

The application adopts the innovative extractant of main extractant EDTA (ethylene diamine tetraacetic acid), auxiliary extractant sodium persulfate and ammonium chloride, carries out water phase extraction on sewage sludge incineration ash, electronic plant sewage filter residue and municipal waste incineration bottom ash, and the extraction efficiency is higher than the sum of exchangeable part, reducible part and oxidizable part in the standard BCR extraction method, only leaving the heavy metal part extracted by digestion method in the last residue, fully cleaning the solid waste polluted by heavy metals, and providing basic demonstration for further application instead of landfill; the application adopts the innovative method of acidification quick freezing, rapid precipitation of main precipitant EDTA, thawing solid-liquid separation, can separate the chelating agent and heavy metal after chelation very quickly and effectively, and recycle the chelating agent; combined with sequential precipitation and coprecipitation, high-purity heavy metal compounds are separated, which are important industrial raw materials; the amount of consumed acid and alkali and other chemical products is less, the cost is lower, and the application prospect is wide.