278 results about "Alpha-Pinene" patented technology

The invention provides a pesticide emulsifiable concentrate preparation which comprises the following components by weight percent: 1-70 percent of pesticide active ingredients, 0-8 percent of stabilizer, 1-25 percent of cosolvent, 5-20 percent of emulsifier and the balance of plant source solvent, wherein the plant source solvent is one or more of alpha-pinene, D-limonene and Jatropha curcas oilmethyl. Compared with the prior art, the pesticide emulsifiable concentrate preparation does not contain any arene organic solvents or other non-environment-protection dissolving assistant, is friendly and safe for the environment, has high security for human and crops, favorable safety in the process of production, storage, transportation and use as well as better integrative preventing effect than that of a pesticide emulsifiable concentrate preparation prepared by applying arene solvents.

The present invention provides one-step levo-alpha-terpineol synthesizing process, in which turpentine oil with alpha-pinene as main component is used as the material, low-carbon alcohol or ketone assolvent and modified strong acid styrene cationic exchange resin as catalyst and the catalytic hydration is completed in a fixed bed reactor. It has catalyst/alpha-pinene weight ratio of 1 to 1-10, alpha-pinene/water molar ratio of 1 to 1.1-2, water/solvent molar ratio of 1 to 0.1-0.9, reaction temperature of 70-100 deg.c, reaction period of 5-13 hr, alpha-pinene converting rate over 95 % and levo-alpha-terpineol yield over 65 %.

The present invention relates to a method for treating a disorder chosen from ocular Demodex, Demodex-induced blepharitis, rosacea, acne, and meibomian gland dysfunction in a patient in need thereof, comprising administering to the patient a composition comprising a therapeutically effective amount of a substance chosen from at least one of an isoprenoidal essential oil such as Tea Tree Oil; Terpinen-4-ol; (+)-Carvone; alpha-Terpineol; Cardinene; d-Carvone; l-Carvone; gamma-Terpinene; alpha-Terpinene; 1,8-Cineole; alpha-Terpineol; para-Cimene; alpha-Pinene; Limonene; (R)-(+)-Limonene; alpha-Thugene; Eucalyptol; (+)-Ledene; Cuminic Aldehyde; and Myrcene; the administration comprising contacting or scrubbing an affected area of skin or hair, or eyelid margin and lashes of the patient with the composition; also disclosed are a method for treating mange and mite infestations on a mammalian animal; and kits for in-office and at home treatments of the disorders.

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.

The invention discloses a method for preparing cis-pinane by asymmetric catalytic hydrogenation of alpha-pinene, and belongs to the chemical engineering field. The method comprises the process steps: in a nitrogen atmosphere, heating RhCl3.3H2O to dissolve in an ethanol solution, and forming a solution A; dissolving newly recrystallized PPh3 in a deoxygenated ethanol, and forming a solution B; adding the solution B into the solution A, refluxing for a certain period of time, filtering under reduced pressure while being hot, washing with deoxygenated ether, carrying out vacuum drying to obtain a rhodium phosphine complex RhCl(PPh3)3; and adding the prepared rhodium phosphine complex RhCl(PPh3)3, an ionic liquid and alpha-pinene into a high-pressure reaction kettle according to a certain proportion, putting a cover and sealing, respectively replacing with nitrogen gas and hydrogen gas, carrying out pressure maintaining and leakage detection, and carrying out a reaction under certain conditions to prepare cis-pinane. The method has the advantages of mild reaction conditions, high conversion rate of alpha-pinene and high enantioselectivity of cis-pinane; the ionic liquid catalyst system is easily separated from the product and can be recycled; and the process flow is simple, and the energy consumption is low.

The invention discloses an adult monochamus alternatus hope attractant, which belongs to the technical field of prevention and control of pests. The attractant is characterized by comprising 95 percent alpha-pinene and 40 percent aldehyde in the volume ratio of (1-5):1. In the adult monochamus alternatus hope attractant, the 95 percent alpha-pinene serving as an active ingredient and the 40 percent aldehyde serving as a synergistic substance are compounded, so that the attracting effect of the attractant is enhanced greatly and the trapping quantity of adult monochamus alternatus hopes in a feeding period accounts for 70 percent of the total trapping quantity; moreover, the attractant has the advantages of simple production process, low cost, environmental friendliness and the like, is safe, can effectively control the woodland population density of monochamus alternatus hopes and prevents the spreading and the transmission of pine wilt disease.

The invention discloses a process for extracting and purifying eucalyptus oil. High-purity eucalyptus oil is extracted by performing vacuum intermittent rectification under the assistance of an aid; separating efficiency is increased by changing the thermodynamic property of an eucalyptus oil system in a way of adding an aid under the condition of not greatly changing the conventional rectification process, and high-purity eucalyptol and alpha-pinene serving as a byproduct are extracted by adjusting reflux ratio and tower kettle temperature; and the content of the extracted eucalyptol is higher than 90 percent, and can be up to 96.50 percent in maximum, the yield is over 75 percent, the production period is within six hours, process operation is simple, a production process is stable, a byproduct containing about 80 percent of alpha-pinene is obtained simultaneously, and the added value of crude eucalyptus oil is increased.

The invention provides a method for catalytically synthesizing isobornyl methacrylate by activated carbon supported stannic chloride, which is characterized by using isomerized solution obtained by isomerizing alpha-pinene by metatitanic acid as the raw material and using the activated carbon supported stannic chloride as a catalyst, directly esterifying the isomerize solution, the activated carbon supported stannic chloride and (methyl) acrylic acid without additional solvents, filtering the esterified solution to remove the catalyst and then directly distilling the esterified solution without washing to obtain isobornyl acrylate (methyl). The method has the following advantages: the isomerized solution can be directly esterified without being purified and the esterified solution is directly distilled without being washed to obtain isobornyl acrylate (methyl). The synthetic method has the advantages of low energy consumption, low environmental pollution, good isomerization and esterification reaction selectivity, high yield and the like.

The invention provides a green plant source environmental protection solvent and a preparation method thereof. The environmental protection solvent is obtained by the microwave cracking of turpentineunder the action of a certain catalyst. The solvent comprises 15wt% to 35wt% of alpha pinene, 15wt% to 40wt% of D-hesperidene, 5wt% to 15wt% of longifolene, 5wt% to 15wt% of camphene, 1wt% to 5wt% ofterpenol and 0 to 2wt% of antioxidant. Compared with the prior art, the raw material of the green plant source environmental protection solvent completely comes from the turpentine of a pine and has low price and simultaneously, a new prospect is supplied to silvichemicals. The solvent as a natural carrier of pesticide replaces an aromatic solvent and a polar solvent with poor safety environmentalprotection, reduces the release of toxic and harmful organic solvents in the environment and has mild and simple preparation condition and low energy consumption.

Embodiments of the invention relate to a pest-control composition comprising at least one active ingredient and at least two other ingredients; wherein the at least one active ingredient is selected from the group consisting of geraniol, nootketone, amyl cinnamaldehyde, catnip, wintergreen, carvacrol, d-limonene, orange oil, lauric acid, alpha pinene, mint, cornmint oil, lemon oil, eucalyptus, eugenol, peppermint, lemongrass oil, and terpenes; and wherein the at least two other ingredients are selected from the group consisting of 2-propanol, alcohol, ethanol, monobutyl ether, ethylene glycol, terpenes, ethoxylated alcohol, dodecanol, ammonia, soap, lauryl polyglucose, polyethylene glycol, sodium lauryl sulfate, sodium olefin sulfonate, cocamidapropyl betaine, alkylbenzene sulfonate, polyoxyethelene alkylphenol sulfate, sodium dodecyl benzene sulfonate, sodium sterate, potassium sterate, potassium myristate, tomadol, polyglyceryl sterate, glycol monosterate, potassium oleate, polyglyceryl oleate, tween, polymers, acrylic polymers, ethyl cellulous, carboxymethyl cellulose, sodium hydroxide, ammonium hydroxide, polyacrylate polymer, polyvinyl pyrolidane, lauric diethanolamine, dimethyldodecylamine oxide, aspartic acid tetrasodium salt, and sodium citrate.

The invention discloses a preparation method and an application of a loaded-type nickel catalyst, and belongs to the chemical engineering field. The preparation method of the loaded-type nickel catalyst comprises the preparation process steps: adding anhydrous ethanol into butyl titanate, then strongly stirring, next adding acetic acid, and fully stirring to form a solution A; after mixing deionized water with anhydrous ethanol, adjusting the pH value to form a solution B; adding the solution B into the solution A drop by drop, adding cetyl trimethyl ammonium bromide, and stirring to form a titanium sol; adding gamma-Al2O3 and deionized water into the titanium sol, fully stirring, standing, drying, and roasting to obtain a composite carrier; and dipping the composite carrier in a nickel nitrate aqueous solution, then fully stirring, drying, roasting, introducing hydrogen, and carrying out reduction treatment to obtain the Ni/TiO2-Al2O3 loaded-type catalyst. The loaded-type nickel catalyst is used for alpha-pinene hydrogenation reaction, the process flow is simple, the catalyst use amount is little, the alpha-pinene conversion rate is high, and the cis-pinane selectivity is good.

The invention discloses a catalyst for synthesizing pinane by hydrogenating alpha-pinene and a preparation method. The catalyst comprises the following components by mass percent: 15-20% of amorphous-state NiB alloy, 20-30% of ZrO2 and 50-65% of Al2O3. The preparation method comprises the following steps: combining a supported nano ZrO2/Al2O3 composite carrier with the amorphous-state NiB alloy; fully utilizing the surface property of the composite carrier and the amorphous-state hydrogenation activity; and directly preparing the amorphous-state NiB alloy on the ZrO2/Al2O3 composite carrier to form a dual-function NiB/ZrO2/Al2O3 catalyst. The catalyst is also used for synthesizing the alpha-pinane by hydrogenating the alpha-pinene. The invention has easily obtained raw materials and simple preparation process; and the hydrogenation product, namely the pinane is a transparent oily liquid with mild pine needle smell which can derive twenty to thirty terpene spices, and is a main raw material for synthesizing spices and medicine intermediates such as dihydromyrcene, linalool, citronellol, citronellal and the like.

The invention discloses an adult monochamus alternatus attractant which comprises the components by volume content: 60-85% of alpha-pinene with the volume concentration of 95%, 15-30 parts of absolute ethyl alcohol and 0-20% of acetaldehyde with the volume concentration of 40%. The invention also discloses a using method of the adult monochamus alternatus attractant, which comprises the steps of: adding 80-200ml of the adult monochamus alternatus attractant into a plastic sustained-release tank and matching the plastic sustained-release tank with a trapper for use. The adult monochamus alternatus attractant can be used for monitoring the population quantity of adult monochamus alternatus, thus effectively reducing the density of the adult monochamus alternatus, and controlling the natural spread of pine wilt disease.

The invention discloses a preparation method of borneol, which comprises the following steps: preparing a titanium dioxide hydrate catalyst; putting 300 parts of alpha-pinene, 9 parts of titanium dioxide hydrate catalyst and 63 parts of anhydrous oxalic acid into a reaction tank, wherein a stirring and heating device and a thermometer are arranged in the reaction tank; heating to 47-53 DEG C, stirring for 3-4 hours, heating to 57-63 DEG C, reacting for 0.5 hour, heating to 87-93 DEG C, and reacting for 0.5 hour; filtering, wherein the catalyst which is filtered out can be used for subsequent production; washing the liquid esterified substance, which is filtered out, with water, evaporating to remove light oil, and saponifying the evaporated borneol; and after carrying out primary crystallization and secondary crystallization by using a 70-80% ethanol solution, carrying out centrifugal drying, and airing to obtain the finished product. By using ethanol instead of gasoline, the invention lowers the production cost, reduces the environmental pollution and conforms to the industrial policy in China. Meanwhile, the invention shortens the production cycle, lowers the production cost and the labor intensity of the workers, and enhances the labor productivity.

The invention discloses a method for continuously extracting torreya grandis flavone and essential oil from torreya grandis aril. The torreya grandis aril is taken as a raw material, and torreya grandis flavone and essential oil products are obtained through four steps of cleaning breaking, steam explosion treatment, subcritical water level extraction and separation purification. According to the method, a steam explosion pre-treatment technology and a subcritical water extraction technology are applied to the torreya grandis flavone and essential oil active ingredient research, continuous extraction of torreya grandis flavone and essential oil is realized, not only is the extraction ratio increased, but also the problems of long extraction time, residual solvents, environmental pollution and the like are solved, and the content of alpha-pinene in the essential oil product is quite high.

The invention aims to develop medicinal composition fat emulsion injection containing eucalyptol, limonene and alpha-pinene and a preparation method. The preparation comprises the following components in percentage by weight: 0.0128 to 0.0320 percent of eucalyptol, 0.0084 to 0.0210 percent of limonene, 0.0028 to 0.0070 percent of alpha-pinene, 10 to 30 percent of soybean oil for injection, 1.0 to 1.5 percent of yolk lecithin for injection or 0.8 to 1.5 percent of soybean phospholipids for injection, 2.0 to 2.5 percent of glycerol for injection, and water for injection added to 100 milliliters. The preparation method has the characteristics of strong controllability of production quality, and definite treatment effect of a product. The invention fills up the blank of the medicinal composition fat emulsion injection preparation containing the eucalyptol, the limonene and the alpha-pinene.

The invention provides a synthesis method of an N-aminoethyl terpinene maleimido imidazole derivative. The synthesis method comprises the following steps: converting alpha-pinene serving as a raw material into alpha-terpinene maleic anhydride adduct (called TMA for short), then reacting the alpha-terpinene maleic anhydride adduct with ethanediamine so as to prepare a midbody, namely N-aminoethyl terpinene maleimide (called ATM for short), and then synthesizing the N-aminoethyl terpinene maleimido imidazole derivative with potential biological activity through modified reaction of amino in the N-aminoethyl terpinene maleimide. The synthesis method has the advantages that the synthesis of the important imidazole ring-containing organic compound by introducing N atoms into the alpha-terpinene maleic anhydride structure is realized for the first time; the N-aminoethyl terpinene maleimido imidazole compound has multiple biological activity, particularly bactericidal activity, the applicant range of the alpha-pinene is widened, and a new approach is supplied for the deep development and utilization of natural organic green resources-turpentine.

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 oily composition which is extracted from Litsea lancilimba and Blumea mollis and contains 1, 8-eudesmin and blumeatin. The oily composition is oily substance extracted from the Litsea lancilimba and the Blumea mollis. The main compositions by weight percentage of the oily composition are: 2.01 to 19.61 percent of the 1, 8-eudesmin, 0.2 to 9.40 percent of sabinene, 0.40 to 4.71 percent of alpha-pinene, 0.40 to 7.84 percent of lemonene, 0.21 to 8.27 percent of the blumeatin, 1.66 to 23.95 percent of L-camphol and 0.64 to 7.98 percent of beta-caryophyllene. The oily composition is definite in main active ingredients, small in content variation, stable in quality which can be effectively controlled, and reliable in healing effect. The invention also discloses use of the oily composition.

The invention discloses an Alfa-pinene isomerization catalyst to improve the single ring terpene yield and a preparation method thereof. The composition of the catalyst is as follows: the mass ratio of zirconia and neodymium oxide is 1:0.03 to 0.09. The catalyst has the preparation method that a mesoporous alumina is adopted as a basic carrier, to prepare the loaded nano composite carrier by directly synthesizng mixture composed of nano zirconia and the neodymium oxide on the surface of the carrier by an immersion method, and to process the composite carrier by adopting an ultrasonic wave and microwave drying technique; the solid acid catalyst, applied to the Alfa-pinene isomerization reaction, is made from the loaded composite carrier SO4<2->. Results show that the conversion rate of the Alfa-pinene is over 98 percent, the single ring terpene accounts for more than 60 percent of an isomerization product. The Alfa-pinene isomerization catalyst has low cost and is pollution-free for the environment and equipment; besides, the prepared catalyst has high activity, high selectivity and high stability.

The invention discloses a method for selectively synthesizing normal borneol. The method comprises the following steps of: (1) reacting alpha-pinene with anhydrous oxalic acid in the presence of a catalyst to obtain bornyl oxalate; and (2) saponifying the bornyl oxalate to generate the borneol and purifying, wherein the catalyst is prepared by using the following processes of: roasting aluminum sulfate octadecahydrate for 1-3 hours at 400-600 DEG C and then roasting for 0-3 hours at 400-600 DEG C and crushing. Compared with the prior art, the production method of the invention has easy obtaining and low price of raw materials and convenient preparation, and the raw materials can be used only by being treated in two steps of roasting and porphyrizing.