7 results about "Methyl oleate" patented technology

The utility model belongs to ethyl oleate preparation technical field especially one kind is provided with the preparation device of ethyl oleate of adsorption function, it includes reation kettle equipment and adsorption box, the top of adsorption box is provided with feeding opening, and the bottom end fixed communication of reation kettle equipment has liquid outlet pipe, and this preparation device still includes: connecting pipe, the bottom end fixed communication of connecting pipe is on liquid outlet pipe, and the top end fixed communication of connecting pipe is in the top of adsorption box, and water pump is fixedly installed on connecting pipe, infusion tube, the top fixed communication of infusion tube is on the bottom end of adsorption box, and valve is fixedly installed on infusion tube, the utility model discloses through simple structure has realized to ethyl oleate after esterification reaction, can efficiently remove the impurity and moisture in ethyl oleate inside, avoids the influence of ethyl oleate preparation after color, smell and purity, improves the finished product quality of ethyl oleate, and the practicality is strong.

The application belongs to the technical field of traditional Chinese medicine detection, and specifically provides a construction method of a characteristic chromatogram of fatty acid components in Zhi Yinyanghuo and application thereof. The application screens gas chromatography conditions and a pretreatment procedure of a test sample through a large number of experiments, screens four characteristic peaks of fatty acids, and realizes effective separation of four characteristic peaks of methyl myristate, methyl palmitate, methyl oleate and methyl stearate, with good peak shape, stable baseline and high resolution, thereby providing a basis for quality detection and control of fatty acid components in Zhi Yinyanghuo and preparations thereof. Through methodology investigation, the precision and intermediate precision of the instrument are good, and the repeatability, specificity and durability of the method are good, thereby meeting the determination requirements. The method can also be used to distinguish raw products and processed products, and is helpful for accurate medication in clinic.

The application relates to the field of pesticide formulations, and particularly discloses a dispersible oil suspension agent containing nicosulfuron, mesotrione and atrazine and a preparation method thereof. The dispersible oil suspension agent containing nicosulfuron, mesotrione and atrazine comprises the following raw materials in mass percentage: 38.2-45.1% of effective substance, 0.5-1% of dispersant, 12-14% of emulsifier, 0.3-0.5% of thickening agent, and the rest is methyl oleate, wherein the effective substance is mesoporous silica loaded with effective components; in addition, the preparation method has the advantages of improving the stability of the composite herbicide.

The application belongs to the field of plant growth regulators, and discloses a low-residue selective fruit tree chemical thinning composition and a preparation method thereof.The composition comprises, in percentage by mass, 6-12% of active ingredients, 3-8% of environmentally-friendly additives, 1-3% of degradation promoters, and 77-89% of solvents.The active ingredients are a compound of 6-benzylaminopurine and ammonium acetate, the environmentally-friendly additives are a mixture of sodium docusate and methyl oleate, the degradation promoters include L-ascorbyl palmitate, a fatty acid ester derivative, polyaspartic acid or nano titanium dioxide, and the solvents are a mixture of deionized water and ethanol.The composition has the characteristics of good thinning effect, strong selectivity, low residue and no drug hazards, and is suitable for various fruit trees.The preparation method has the advantages of simple process, low energy consumption, no harmful by-products, suitability for large-scale production and promotion, and meeting the needs of green agriculture and pollution-free fruit planting.

The application relates to the technical field of unsaturated fatty acid and its derivative preparation, in particular to a preparation method of a linoleic acid methyl ester and alpha-linolenic acid methyl ester composition. The preparation method is characterized in that supercritical fluid such as CO2 with strong permeability and high solubility is used for supercritical extraction of soybeans, and an auxiliary solvent such as ethanol is added, so that the oil in the soybeans can be efficiently extracted, and unsaturated fatty acids such as linoleic acid and alpha-linolenic acid can be effectively enriched. The first product is subjected to methyl esterification modification, purified in a simulated moving bed chromatograph, and matched with a C18 fixed phase and a polar eluent, and a port is periodically switched, so that the mass ratio of linoleic acid methyl ester and alpha-linolenic acid methyl ester can be effectively controlled, a feasible way for preparing LA / ALA with a specific mass ratio is provided, and the application requirements can be met.

This invention relates to the field of chemical catalysis and high-value utilization of waste oil resources, specifically to a supported molecular sieve catalyst, its preparation method and application, and a method for preparing methyl linoleate. The supported molecular sieve catalyst uses a molecular sieve as a support and a metal oxide as the active component; wherein the active component is selected from one or more of the following: molybdenum oxide, zirconium oxide, tungsten oxide, niobium oxide, zinc oxide, and aluminum oxide; the content of the active component in the supported molecular sieve catalyst is 0.1~50 wt%. This supported molecular sieve catalyst can achieve high catalytic activity and high product selectivity in linoleate esterification, and is highly stable, reusable, environmentally friendly, and can effectively replace traditional liquid acid catalysts.