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201 results about "Alpha-terpineol" patented technology

Terpineol is a monoterpene alcohol that has been isolated from a variety of sources such as cajuput oil, pine oil, and petitgrain oil. There are four isomers, alpha-, beta-, gamma-terpineol, and terpinen-4-ol. beta- and gamma-terpineol differ only by the location of the double bond.

Method for preparing herbicide

The invention relates to a method for preparing an herbicide, and provides a method for preparing a natural herbicide, which has the advantages of mild reaction conditions, simple process, low cost and easy industrialized mass production. The method comprises the following steps of: dissolving alpha-terpineol insolvent, and adding alkali, metallic oxides and peroxides; stopping the reaction when the gas chromatographic analysis shows that the content of the alpha-terpineol is less than 0.5 percent; filtering and recovering the metallic oxides; distilling filtrate distillation to recover solvent, obtaining 1,2-epoxide; dissolving the 1,2-epoxide in the solvent, and adding acid; stopping the reaction when the gas chromatographic analysis shows that the content of the 1,2-epoxide is less than 2 percent; distilling reaction solution to recover solvent, obtaining an isomerized product of the 1,2-epoxide; dissolving the isomerized product of the 1,2-epoxide in the reaction solvent, adding alkali for stirring, and adding 2-methyl benzylchloride; stopping the reaction when the gas chromatographic analysis shows that the content of the isomerized product is less than 2 percent; pouring the reaction solution in water, adjusting the pH value of the mixed solution to neutral, and separating out organic phases; and obtaining the finished product by the water phase extraction, the combination of the organic phases, and distillation and recovery of the solvent.
Owner:云南森美达生物科技股份有限公司

Paste for solid oxide fuel cells, anode-supported solid oxide fuel cells using the same, and fabricating method thereof

InactiveUS20070077476A1Simple structureMaximize a thermo-mechanical property and an electrochemical property of a unit cellFinal product manufactureElectrode carriers/collectorsSolubilityScreen printing
The present invention discloses a paste for screen printing which is used in a process of fabricating an anode functional layer, an electrolyte layer and a cathode layer of an anode-supported solid oxide fuel cell. The paste for the solid oxide fuel cell contains raw material powder of each layer, ethyl cellulose which is a binder, alpha terpineol which is a solvent, and an alcoholic solvent which has solubility to a thermosetting binder contained in an anode support and which is added by 0.5 to 20 wt % of alpha terpineol as an additional solvent. The present invention also discloses a fabricating method of an anode-supported solid oxide fuel cell which forms each layer of the fuel cell by screen printing by using the paste. According to the present invention, in the highly efficient pore structure anode support fabricated by thermosetting molding, the composition of the paste for screen printing is controlled to improve weftability, and the movement of the elements is restricted by curing, thereby reducing surface defects of the layers and interfacial defects between the layers in fabrication and improving the interface strength. As a result, the high performance large area solid oxide fuel cell can be economically and efficiently fabricated, and reliability of the product can be remarkably improved.
Owner:INTELLECTUAL DISCOVERY CO LTD

Preparation method and application of multistage-structured flower-shaped molybdenum trioxide

The invention provides a preparation method and application of multistage-structured flower-shaped molybdenum trioxide, and relates to a preparation method and application of molybdenum trioxide. The invention aims to solve the problems that the process is complicated, the reaction temperature is high and molybdenum trioxide applied to a gas-sensitive element is low in propanol sensitivity in the existing preparation method of molybdenum trioxide. The preparation method comprises the following steps: heating a molybdenyl acetylacetonate glacial acetic acid solution, washing with anhydrous alcohol, and drying to obtain the multistage-structured flower-shaped molybdenum trioxide. The application comprises the following steps: mixing the multistage-structured flower-shaped molybdenum trioxide with glass powder, adding terpineol, blending into a paste, coating on the surfaces of a ceramic tube having two metal electrodes, drying, performing thermal treatment, and then implanting heater strips to obtain a gas-sensitive element. According to the invention, the preparation method of multistage-structured flower-shaped molybdenum trioxide adopts a simple hydrothermal method, the hydrothermal temperature is low, and the molybdenum trioxide applied to the gas-sensitive element is favorable in propanol sensitivity. The invention is applicable to the fields of gas-sensitive sensors, catalysis and chemical adsorption.
Owner:HEILONGJIANG UNIV

Bactericide composition containing propiconazole, flusilazole and levo-alpha-terpineol and production method thereof

The invention discloses a bactericide composition containing propiconazole, flusilazole and levo-alpha-terpineol and a production method thereof, and the bactericide composition comprises the following active ingredients by weight percent: 1%-50% of propiconazole, 1%-50% of flusilazole, 1%-50% of levo-alpha-terpineol and the balance of auxiliaries. The formulation can be missible oil, microemulsion and emulsion in water. The bactericidal spectrum is expanded after complex of the composition, the bactericide composition further has obvious synergy, the usage amount and the using times of the bactericide can be significantly reduced, the cost is reduced, and the emergence of drug resistance to diseases can be also delayed. The bactericide composition can be used for control of banana leaf spot disease, banana scab, venturia pirina, peanut leaf spot disease, apple anthracnose and grape anthracnose. Simultaneously, the levo-terpineol has low toxicity and is easy for degradation as a monoterpene alcohol synthesized by a plant renewable resource-turpentine, thereby being in line with requirements on green and environmental protection. The micro-emulsion and the aqueous emulsion in the invention, wherein, the water part can replace an organic solvent,, thereby reducing the environmental pollution.
Owner:GUANGXI RES INST OF CHEM IND CO LTD

Crystalline silicon solar cell back surface field aluminum paste and preparation method thereof

The invention relates to crystalline silicon solar cell back surface field aluminum paste and a preparation method thereof. The crystalline silicon solar cell back surface field aluminum paste comprises, by weight, 74 parts of aluminum powder, 20-25 parts of organic bonds, 1-4 parts of lead-free glass powder and 0.1-2 parts of additives, wherein the organic bond comprises, by weight, 40-70 parts of terpineol, 5-10 parts of butyl carbitol, 5-10 parts of butyl carbitol acetic ester, 3-10 parts of ethyl cellulose, 5-15 parts of dibutyl phthalate and one part of sorbitol anhydride stearate; the lead-free powder comprises, by weight, 30-60 parts of Bi2O3, 5-15 parts of B2O3, 3 parts of BiF3, 10-20 parts of SiO2, 5-10 parts of ZnO, 1-5 parts of TiO2, 10-20 parts of Al2O3 and 1-3 parts of P2O5; and the additive is spherical copper powder with the purity larger than 99% and the fineness being 20000 meshes. The aluminum powder, the organic bonds, the lead-free glass powder and the additives are evenly mixed and then rolled by a three-roll grinder until the fineness is smaller than or equal to 10 mum and the viscosity is 30-60Pa*s. The crystalline silicon solar cell back surface field aluminum paste is high in photoelectric conversion efficiency and adhesive force, the adhesive force conversion efficiency after high temperature aging declines, and the water-boiling resistance is good.
Owner:JIANGSU ZHENGNENG ELECTRONICS TECH CO LTD

Germicide composition containing prochloraz and levo alpha-terpinol and production method thereof

The invention discloses a germicide composition containing prochloraz and levo alpha-terpinol and a production method thereof. The germicide composition is characterized by comprising the following components in percentage by weight: 1-50 percent of prochloraz as an effective ingredient, 1-50 percent of levo alpha-terpinol and the balance of auxiliary agent; and the dosage form of the germicide composition is missible oil, a microemulsion or a water emulsion. The germicide composition has the advantages of expanding the sterilization spectrum after compounding, having obvious synergized action, obviously reducing the usage amount and the usage numbers of the germicide, reducing the cost and delaying the generation of the drug resistance of diseases, can be used for simultaneously preventing and treating various diseases and also can be used for preventing and treating mango anthracnose, rice blasts, banana crown rots, and the like. Meanwhile, the levo alpha-terpinol which is a monoterpene alcohol synthesized from turpentine oil as a natural renewable resource is easy to degrade in the environment and conforms to the requirement of environmental protection. In addition, in the microemulsion and the water emulsion, water is used for replacing organic solvents, thereby the environmental pollution is reduced.
Owner:GUANGXI RES INST OF CHEM IND CO LTD

Water-based electronic industrial scaling powder cleaning agent and preparation method thereof

The invention relates to the technical field of cleaning agents, in particular to a water-based electronic industrial scaling powder cleaning agent and a preparation method thereof, the water-based electronic industrial scaling powder cleaning agent comprises the following components in parts by weight: 50-70 parts of high-boiling-point alcohol ether, 20-30 parts of terpineol, 1-2 parts of a corrosion inhibitor, 1.5-4 parts of an emulsifier, 1-2 parts of a penetrating agent, 1-2 parts of an alkali and 10-20 parts of deionized water. The novel PCB water-based electronic industrial scaling powder cleaning agent disclosed by the invention is an environment-friendly cleaning agent, and a fluorine-containing carbon solvent and a halogenated hydrocarbon. No threat is caused to human health. Thewater-based electronic industrial scaling powder cleaning agent is convenient to use, environment-friendly, safe and simple in using method, by diluting a concentrated solution according to requirements, and carrying out ultrasonic wave or spray cleaning, the scaling powder cleaning agent on the surface of a PCB can be effectively removed, and after the PCB board cleaned by the cleaning agent is subjected to water rinsing and air drying, the next procedure can be directly carried out.
Owner:深圳建实科技有限公司

Method for recovering valuable metals from waste refractories by virtue of reselection-kerosene aggregative flotation combined process

The invention discloses a method for recovering valuable metals from waste refractories by virtue of a reselection-kerosene aggregative flotation combined process. The method comprises the following steps of crushing waste refractory original ores, performing primary wet-type ball milling, and then performing reselection by virtue of a two-stage table, thereby obtaining a table concentrate product; recovering coarse particle metals from the table concentrate, mixing table middlings with tailings, performing secondary wet-type ball milling, and performing floatation recovery by utilizing coal oil as an auxiliary collecting agent, xanthate and ethyl thio carbamate as collecting agents and terpineol as a blowing agent, so as to recover micro-fine particle metals. By virtue of reselecting and recovering coarse particle metals, and combining with floatation, collection of the micro-fine particle metals is strengthened, and finally efficient recovery of valuable metals in waste refractory bricks is realized. The method has relatively high economic value.
Owner:CENT SOUTH UNIV

Detection method of Houttuynia herb injection

The invention discloses a quality detection method of a Houttuynia herb injection. The method comprises content measurement, identification and/or fingerprint detection processes. The method is a gas chromatography, comprising the following steps of: taking a 4-terpineol reference substance, an alpha-terpinol reference substance, a bronyl acetate reference substance and methylnnonylketone, respectively adding n-hexane to prepare a reference substance solution; adding the n-hexane in the Houttuynia herb injection, adding anhydrous sulfate to prepare a test sample solution; respectively absorbing the reference substance solution and the test sample solution; injecting in the gas chromatography to test; and detecting according to the method of content measurement items, and recording a chromatogram, wherein the similarity of the test sample fingerprint and the reference fingerprint is not less than 0.85. The invention further provides a detection method of polysorbate 80 limit test in the Houttuynia herb injection, an identification method of thin-layer chromatography and a detection method of essential oil content in Houttuynia herb medical materials or injections. The quality detection method provided by the invention has good specificity, good linear relation, good instrument precision and good repeatability.
Owner:HUNAN ZHENGQING PHARM GRP CO LTD +1

Titanium-salt-modified Raney nickel catalyst and method for synthesizing dihydroterpineol

The invention discloses a titanium-salt-modified Raney nickel catalyst and a method for synthesizing dihydroterpineol. A preparation method of the titanium-salt-modified Raney nickel catalyst comprises steps as follows: a nickel aluminium alloy with the mass percentage of nickel ranging from 40% to 65% is crushed to be at 60-120 meshes and subjected to stirring treatment by the aid of a 20%-35% sodium hydroxide solution at the temperature of 40-80 DEG C for 1-2 h, Raney nickel is obtained after washing with deionized water, and then the Raney nickel is modified with a titanium salt solution, washed with the deionized water and absolute ethyl alcohol respectively finally and stored in the absolute ethyl alcohol. The Raney nickel is used as a hydrogenation catalyst for terpilenol during synthesis, reaction conditions are mild, the occurrence probability of side reactions can be decreased, the selectivity of the dihydroterpineol is higher than 98%, the yield ranges from 98.0% to 98.6%, the purity is high, and the dihydroterpineol can be directly sold as a product after subjected to solid-liquid separation treatment together with the catalyst, so that the production efficiency is high, and the cost is low.
Owner:江西创赢香精香料科技协同创新有限公司 +2
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