278 results about "Alpha-Pinene" patented technology

The invention relates to tobacco essence capable of improving cigarette taste and aroma and also relates to application of the tobacco essence in cigarettes. The tobacco essence mainly comprises propylene glycol, loquat leaf extract, salvia miltiorrhiza extract, labdanum oil, rhodinol, mint lactone, guaiacol, carvone, acetic acid isobutyl ester and alpha-pinene. The tobacco essence has the effects of softening and smoothening the smoke, cleaning the residual odor, reducing the irritation and moisturizing, and the tobacco quality is improved.

The present invention relates to a polysilazane treatment solvent which has excellent solvency and stability, has no influence on the performance of the substrate and polysilazane as the bottom layer, has a good cutting edge shape, and is highly safe to the human body of. The processing solvent contains a solvent selected from the group consisting of tetralin, p-menthane, p-cumylmethane, α-pinene, 1,8-cineole and mixtures thereof, and also relates to a process using the solvent Polysilazane treatment method. The solvent may also contain a solvent selected from the group consisting of aliphatic hydrocarbons, alicyclic hydrocarbons, and mixtures thereof.

Embodiments of the invention relate to a composition for controlling a target pest, wherein the composition includes at least two active ingredients selected from the group consisting of thymyl acetate, linalyl acetate, amyl butyrate, anise star oil, black seed oil, p-cymene, geraniol, isopropyl myristate, d-limonene, linalool, lilac flower oil, methyl salicylate, alpha-pinene, piperonal, piperonyl alcohol, tetrahydrolinalool, thyme oil white, thyme oil red, thymol, vanillin, and winter-green oil, wherein the composition causes synergistic control of the target pest.

A method of forming α-alane. The method includes reacting aluminum trichloride and an alkali metal hydride to form an alane-ether complex solution. An aqueous diethyl ether solution is optionally added to the alane-ether complex solution to form a partially hydrolyzed ether / alane-ether complex solution. A solution of a first crystallization additive is added to the alane-ether complex solution or to the aqueous ether / alane-ether complex solution to form a crystallization solution. The first crystallization additive is selected from the group consisting of polystyrene, polybutadiene, polystyrene-co-polybutadiene, polyisoprene, poly-alpha-methylstyrene, polystyrene-co-polyindene, poly-alpha-pinene, and mixtures thereof. Optionally, a second crystallization additive is added to the crystallization solution. The second crystallization additive is selected from the group consisting of squalene, cyclododecatriene, norbornylene, norbornadiene, a phenyl terminated polybutadiene, 2,4-dimethyl anisole, 3,5-dimethyl anisole, 2,6-dimethyl anisole, polydimethyl siloxane, and mixtures thereof. Solvents are removed from the crystallization solution to crystallize the α-alane.

The invention discloses an Monochamus alternatus adult attractant based on insect patient-oriented pheromone and applications thereof, belonging to the technical field of pest control. The Monochamus laternatus adult attractant based on insect patient-oriented pheromone is characterized in that a key component is 2-undecyloxy-1-ethanol; auxiliary components consist of alpha-pinene of purity 95% and acetaldehyde of purity 40%; and the volume ratio of the alpha-pinene of purity 95% to the acetaldehyde of purity 40% is 2-4:1. According to the monochamus alternatus adult attractant based on insect patient-oriented pheromone and the applications, the insect patient-oriented pheromone, namely 2-undecyloxy-1-ethanol, is screened successfully, the attractant is used together with a traditional botanical attractant, the inducing effect is improved by more than 5 times, especially in the later period (spawning period) of an adult, the trapping effect of the attractant is dozens of times of that of the botanical attractant. The attractant of the invention has the advantages of low cost, long effective duration, good safety, environmental friendliness and the like, can control the harm of Monochamus alternatus, has important significance on restraining the propagation and spreading of pine wood nematode disease, and fills the blank of home and abroad technology.

The invention discloses a Monochamus alternatus attractant which comprises a plant-derived pheromone and an aggregation pheromone. The plant-derived pheromone comprises the following components in parts by volume: 60-75 parts of turpentine or alpha-pinene, 18-30 parts of ethanol, 0-5 parts of guaiacol and 0-5 parts of 4-methyl guaiacol. The aggregation pheromone is 10-100 mu L / lure 2-undecyloxy-1-ethanol. The application method comprises the following steps: the plant-derived pheromone is released by a slow-release bottle, wherein radial bulge lines are arranged in the cap of the slow-release bottle, the slow-release bottle is prepared from low-density polyethylene (LDPE) with the density of 0.910-0.925 g / cm<3>, and the wall thickness of the slow-release bottle is 0.20-0.70mm; the aggregation pheromone is released by a slow-release bag, wherein the slow-release bag is prepared from LDPE with the density of 0.910-0.925 g / cm<3>, and the wall thickness of the slow-release bag is 0.04-0.15mm. The average trap quantity per week of each Monochamus alternatus attractant is up to 59.01; the drug effect can stably stay for 2 months or so; and thus, the Monochamus alternatus attractant can greatly lower the population density of Monochamus alternatus and inhibit the pine wood nematode disease from propagation and transmission.

The invention discloses an attractant for aphid predatory natural enemy insects. The attractant is formed by mixing alpha-pinene, eugenol, locust flower essential oil and matricaria recutita essential oil according to the weight ratio of (1-20):(1-20):(0.1-30):(0.1-30). The attractant has the positive effects that fresh essential oil is used for attracting aphid predatory natural enemy insects and controlling aphids in the initial occurrence stage of the aphids according to an olfactory recognition mechanism of the natural enemy insects to a flower source. The attractant has the advantages that the attraction efficiency is high, the prevention and control cost is low, and the attractant is safe to agricultural products, and environment-friendly.

Silicon sol supported amorphous Ni is used as a precursor for reducing crystal nano Ni, and special magnetic Fe3O4 powder is used as a carrier of nano metal Ni. In the process of forming crystal nano Ni, the magnetic carrier plays a role in regulating and controlling the feature of crystal nano Ni, and self-assembly of the nano Ni crystal is realized, so that needle-like Ni nano wires with similar one-dimensional structure are formed. When the catalyst is applied in the preparation of cis pinane by alpha-pinene selective hydrogenation, the hydrogenation activity is inspected, and the result shows that the selectivity of the cis pinane is obviously improved through the catalyst compared with commercial Raney Ni.

The invention discloses a preparation method of alpha-terpilenol, which comprises the steps that firstly, alpha-pinene, water and an organic solvent are placed in a container, and subjected to heating reflux; evaporated vapor enters a rectifying tower; secondly, a gas-phase mixture from the top of the rectifying tower enters a condenser at the top end of the rectifying tower; a condensed liquid enters a packed tower, and hydrated by the catalysis of a solid acid catalyst to form alpha-terpilenol; and finally, a mixed liquid of the packed tower enters the container and is evaporated continuously; the evaporated vapor enters the rectifying tower and separated; alpha-terpilenol is left in the rectifying tower; and a gas phase mixture from the top end of the rectifying tower continuously enters the condenser. The preparation method adopts a rectification-coupling technology, and takes alpha-pinene as a raw material, performs alpha-pinene hydration directly, and produces alpha-terpilenol continuously, the yield of alpha-terpilenol is increased; the selectivity of alpha-terpilenol is improved; the production capacity is improved; the energy consumption and the production cost are lowered; and compared with the traditional technology, the automatization of a production process is easy to realize.