11 results about "Dodecylbenzene" patented technology

This invention belongs to the field of biological agents for aquaculture, and discloses a compound biological pond-cleaning agent containing tea saponin and its preparation method. The compound biological pond-cleaning agent of this invention comprises the following components by weight: 3-10 parts tea saponin, 60-70 parts roe beetle root powder, 10-20 parts Buddleja officinalis, 5-10 parts compound microbial powder, 3-8 parts adjuvants, and 10-20 parts carrier; the adjuvant is a mixture of sodium lignin sulfonate and sodium dodecylbenzene sulfonate; the compound microbial powder is a mixture of Bacillus subtilis and photosynthetic bacteria; and the carrier is diatomaceous earth. This invention combines three natural active ingredients—tea saponin, roe beetle root powder, and Buddleja officinalis—with suitable adjuvants and a carrier, which can expand the pond-cleaning range and has good killing or inhibitory effects on harmful organisms such as wild fish, shrimp, crabs, and snails, as well as various pathogens. The pond-cleaning is thorough, and the raw materials are easily degradable, leaving no residue. It is environmentally friendly and has a long-lasting effect, which is of great significance for promoting the green and sustainable development of aquaculture.

This invention relates to a linerless liquid hydrogen container carbon fiber composite material and its preparation method. The preparation method includes the following steps: reacting a hydroxyl-terminated polymer with a sulfonyl chloride group to generate a first solution; the hydroxyl-terminated polymer includes a hydroxyl-terminated hyperbranched polymer, a hydroxyl-terminated polyether polyol, or a hydroxyl-terminated liquid rubber; the sulfonyl chloride group organic compound includes dodecylbenzenesulfonyl chloride or ethylsulfonyl chloride; reacting the first solution with 1-methylimidazole, washing the product with a solvent, and vacuum drying to evaporate the solvent to obtain an ionic liquid; mixing the ionic liquid uniformly with graphene or hexagonal boron nitride nanosheets, adding a curing agent, mixing uniformly, then adding epoxy resin, mixing uniformly, and repeatedly vacuuming to obtain a modified epoxy resin mixed solution; and using the modified epoxy resin mixed solution to wind and mold carbon fiber composite material parts. This invention enhances the low-temperature toughness and gas barrier properties of carbon fiber composite materials.

This invention relates to a surfactant composition comprising: a) an anionic component A (hereinafter referred to as surfactant component A), which is selected from C 10 -C 14 Sodium alkylbenzene sulfonate, such as linear dodecylbenzene sulfonate; and b) non-anionic component B (hereinafter referred to as surfactant component B), which is selected from compounds having formula (I) and mixtures thereof, R-O-(CH2CH2-O). n -H(I), where R is a branched C8-C 10 Alkyl, particularly 2-ethylhexyl or 2-propylheptyl, and n is an integer in the range of 0 to 10, particularly in the range of 0 to 6.

This invention discloses a water-saving foam washing agent for cotton fabrics. The foam washing agent comprises, by mass percentage, one or more of a polyoxyethylene ether compound, sodium dodecyl sulfate, or sodium dodecylbenzene sulfonate, accounting for 0.1-3%; potassium persulfate, accounting for 0.1-2%; and the balance being water. A treatment process using this water-saving foam washing agent for cotton fabrics includes dyeing the cotton fabric with reactive dyes, spraying the fabric with the foam washing agent, and steaming. The advantages of this invention lie in its ability to effectively reduce water consumption during the washing process, achieving water conservation, and addressing the generation of colored wastewater at its source, thus greatly assisting in the treatment of subsequent dyeing wastewater.

The present application relates to the technical field of microorganism, and particularly relates to a Pediococcus pentosaceus QHEK025, a composition containing the same and purposes. The Pediococcus pentosaceus is Pediococcus pentosaceus QHEK025, the preservation number is CCTCC NO: M 20252985, and the preservation is carried out in China Center for Type Culture Collection. The composition contains at least one of lactic acid dodecylbenzene and a culture of the strain. The composition is used for preparing a composition for feed fermentation. Advantages of the present application are as follows: (1) can efficiently degrade mycotoxins; (2) has probiotic properties, strong growth performance, strong acid tolerance, strong bile salt tolerance and strong osmotic pressure tolerance; (3) has good hydrophobicity and self-aggregation performance; (4) high safety.

This invention relates to a self-compacting concrete and its preparation method, belonging to the field of concrete technology. The raw materials for the self-compacting concrete provided by this invention include cement, fly ash, slag powder, sand, crushed stone, a high-performance water-reducing agent, an air-entraining agent, and water. The high-performance water-reducing agent is obtained by blending a polycarboxylate water-reducing agent, an organosilicon-modified hyperbranched star polymer, and a polyether-modified organosilicon polymer. The air-entraining agent is obtained by compounding sodium dodecylbenzene sulfonate and sodium fatty alcohol polyoxyethylene sulfonate. The self-compacting concrete prepared by this invention has a high water reduction rate, low slump loss, and high stability, resulting in a significant improvement in overall performance.

This application relates to the field of chemical synthesis technology, specifically disclosing a method for preparing a plasticizer by catalytic esterification. The catalyst used in this method is a temperature-sensitive ternary bifunctional catalytic complex, and the raw materials include p-hydroxybenzenesulfonic acid, N,N-dimethyldodecyl tertiary amine, and p-dodecylbenzoic acid. The preparation method is as follows: first, the above-mentioned catalytic complex is prepared; then, a carboxylic acid or anhydride substrate, a fatty alcohol substrate, and the catalytic complex are added to a reaction vessel. After replacement with an inert atmosphere, the reaction process is dynamically controlled based on the water effluent rate. The esterification reaction is completed by segmented temperature control. The product is then obtained by cooling to precipitate the catalyst, pressure filtration separation, vacuum distillation, and decolorization filtration. The plasticizer prepared by this application can be used for the modification and processing of polymer materials such as polyvinyl chloride. The product has high purity and few impurities; the preparation method has high catalytic activity, easy catalyst recovery, and low raw material alcohol consumption. The catalyst can be recycled, which has the advantages of being green, environmentally friendly, and simple.

This invention discloses a composite extractant composition and method for extracting lithium from lithium precipitation mother liquor. The composition includes a β-diketone extractant, an N1923 co-extractant, a modifier, and a diluent. The β-diketone extractant is one or more of dodecylphenyl-methyl-β-diketone and 1-phenyl-3-isoheptyl-1,3-propanedione. The modifier is one or more of isodecanol and isooctanol. The diluent is one or more of sulfonated kerosene, No. 260 solvent oil, white oil, n-heptane, and cyclohexane. The composition provided in this application uses N1923 as a co-extractant, which maintains good solubility and chemical stability under strongly alkaline conditions. This invention also provides a method for lithium extraction, which uses this composition to extract alkaline lithium precipitation mother liquor and uses CO2 gas for mild back-extraction to achieve efficient conversion of lithium bicarbonate and recovery of lithium. The back-extraction solution is close to neutral.

This invention relates to the field of mineral flotation separation technology, specifically to a method for desilication of high-silica bauxite by reverse flotation. The invention uses high-silica bauxite as the target material. The raw ore is crushed, ground, and slurry-adjusted to obtain a pulp to be processed. The pH of the pulp is adjusted to 5.0-9.0 using sodium hydroxide or hydrochloric acid. The reagents used in reverse flotation include a boehmite inhibitor, an activator, and an anionic collector. The inhibitor is selected from one or more mixtures of water glass, tannic acid, sodium pyrophosphate, and polyacrylamide. The activator is selected from one of copper sulfate, lead acetate, and aluminum chloride. The anionic collector is selected from one of sodium dodecyl sulfate, sodium dodecylbenzene sulfonate, and sodium dodecyl sulfonate. This invention improves the selectivity of separating boehmite and kaolinite, resulting in good flotation separation, a high aluminum-silicon ratio in the bauxite concentrate, and a high alumina recovery rate. It also significantly improves the problems of large foam volume, strong viscosity, and difficulty in defoaming during the flotation process.

This invention discloses a composition for extracting lithium from lithium precipitation mother liquor, comprising extractant A and extractant B; extractant A is selected from one or both of dodecylphenyl-methyl-β-dione and 1-phenyl-3-isoheptyl-1,3-propanedione; extractant B is selected from one or more of triisoamyl phosphate, trioctyl phosphate, and di(2-ethylhexyl) 2-ethylhexylphosphonate; the composition of this application improves the stability of the composition by employing the synergistic combination of extractant A and extractant B, effectively suppressing emulsification during the extraction process without relying on phase modifiers, and avoiding easy changes in the composition of the extraction system during long-term operation; this invention also provides a method for extracting lithium from lithium precipitation mother liquor. By using the composition provided by this invention, not only can efficient lithium-ion extraction and separation be achieved, but the long-term stability of the extraction process is also improved, which is more in line with the requirements of continuous industrial production.

This invention discloses a method for directly preparing tetramethoxysilane from silicon powder and methanol. A catalyst containing copper and nickel salts is added to a mixture of silicon powder and dodecylbenzene, followed by the addition of methanol under nitrogen atmosphere and reaction at 200-260°C to obtain tetramethoxysilane (TMOS). In this invention, the catalysts CuCl and NiCl2 are used to directly synthesize TMOS via a relay catalysis principle. The catalysts are simple and readily available, offering advantages such as low corrosivity and a direct reaction process, as well as high silicon powder conversion rate and TMOS selectivity.