206 results about "Alpha-terpineol" patented technology

The invention discloses a compounding and a preparation method for lead-free electronic slurry used for a solar silicon photocell; according to the mass percentage, the slurry is obtained by preparing 70 to 75 percent of aluminium powders, 20 to 25 percent of organic adhesive, 1 to 5 percent of inorganic glass powders and 1 to 5 percent of additives; the aluminium powder is ball-shaped aluminium powder with the surface covered by an aluminium nitride protection layer, with the purity not less than 99.9 percent and the average grain size of 2 to 6 microns; simultaneously, organic adhesives consisting of ethyl cellulose, resin, hexadecanol, diethyleneglycol monomethyl ether, diethyleneglycol monobutyl ether, terpineol and n-butyl alcohol are added into the aluminium powder; the inorganic glass powder is silicon dioxide, boracic acid, alumina, antimony oxide and zirconia; the additive consists of Span and pump oil. The product prepared by the method of the invention has no dust generation or aluminium peeling phenomenon and achieves the requirement of no lead and environmental protection.

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 invention discloses lead-free solar cell silver serum and a preparation method thereof, which consists of 70-85 percent of conducting silver powder, 5-10 percent of lead-free glass glue and 5.5-25 percent of organic carrier, wherein, the organic carrier consists of organic solvent and organic additive, the organic solvent is any kind of terpineol, terebinth and ethers or their combination; the organic additive is any kind of ethyl cellulose, dibutyl phthalate and acrylic resin or their combination; the particle size of the conducting silver powder is 0.2-2mum; and the lead-free glass glue belongs to bismuth-silicon- antimony glass system. The solar cell silver serum obtained by the method in the invention is lead-free, which complies with requirements of environmental protection, and a conducting electrode with strong adhesive force and low ohm contact resistance can be formed on the surface of the solar cell. The cell has high photoelectric conversion efficiency and is an ideal substituent of the lead silver serum.

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.

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.

The invention discloses a preparation method of the Alpha hyphen Terpinene with high purity, which comprises the following steps: first, synthesizing Alpha hyphen Terpinene: the turpentine oil or one of the Alpha hyphen pinene or Beta hyphen pinene of industrial grade is mixed with the organic solvent and the water and one or two or the mixture of the sulphuric acid, the phosphoric acid, the p-toluene sulfonic acid and the chloroactic acid or the macropore cation exchange resin are used ascatalysts to directly react with water to generate Alpha hyphen Terpinene reaction product; the generation of the Gamma hyphen Terpinene are reduced by the method of controlling the mixture ratio and the reaction temperature of the Terpinene, the organic solvent and the water to form the transparent homogeneous solution system; second, separating the Alpha hyphen Terpinene with high purity. The invention forms the transparent homogeneous solution system through the turpentine oil or one of the Alpha hyphen pinene or Beta hyphen pinene of industrial grade and the organic solvent and water, therefore effectively inhibiting the generation of the main impurity- Gamma hyphen Terpinene.

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.

The present invention relates to a method to decrease the flammability of normally flammable alcohols and solvents. The additive is Alpha Terpineol, which will increase the flash point of flammable alcohols or solvents, by blending the Terpineol into the flammable solvent or alcohol. Solvents such as acetone, methanol, ethylacetate, ethanol and xylene, to name a few, increases flash points by 50° C. to 60° C., by addition of 12-14% terpineol. The said solvent can then be blended with other organic solvents to produce performance solvents, such as paint strippers with flash points greater than 140° F. and meet Federal and state Volatile Organic Compound regulations.

The invention relates to a method for preparing a platinum electrode of the dye sensitized solar cell, belonging to the technical field of dye sensitized solar cells and comprising the following steps: 1) a glass substrate or a flexible substrate is soaked and cleaned in an ultrasonic cleaning machine; 2) heated and stirred in water bath, ethyl cellulose is slowly added into terpineol liquid according to the mass percentage to form an organic carrier; 3) analytically pure chloroplatinic acid is dissolved in the terpineol liquid in advance and then is added into the organic carrier and stirred evenly to prepare chloroplatinic acid slurry, the percentage of the chloroplatinic acid in the chloroplatinic acid slurry ranges from 0.1% to 1.0%; 4) a screen printing process is adopted and the prepared slurry is evenly coated on the clean conductive glass substrate or flexible substrate; and 5) after sintering, a uniform platinum electrode of large area is formed on the conductive glass substrate or flexible substrate. The method can improve the photoelectric conversion efficiency of the cell and the prepared cell has relatively good repeatability.

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.

The invention provides a method for one-step hydration synthesis of terpilenol by catalyzing turpentine through carbon-based solid acid. The method is characterized in that the turpentine is used as the raw material, isopropyl alcohol or butyl alcohol or isobutyl alcohol is used as the solvent, and the terpilenol is formed by means of one-step hydration synthesis through the turpentine under the catalytic action of a carbon-based solid acid catalyst. The carbon-based solid acid is prepared through a lignin gel method and has the advantages of developed micropores and mesopores, high catalytic activity, easy separation, good thermostability, repeatable utilization, easy regeneration, low preparation cost and the like; since the carbon-based solid acid is used for catalyzing the turpentine to form the terpilenol by means of one-step hydration synthesis, the conversion rate of the turpentine is up to 95-98 percent, and the yield of the terpilenol is 35-42 percent; besides, in the production process, no liquid waste acid or waste water is produced, pollution to the environment is greatly relieved, and the requirement for green chemistry is met.

The invention discloses a bactericide composition containing difenoconazole and levorotatory alpha-terpineol. The bactericide composition is characterized by comprising effective components of 1% to 50% by weight of difenoconazole and 1% to 50% by weight of levorotatory alpha-terpineol, and is mainly used for preventing and treating sigatoka. The invention has the advantages of obvious synergy function after formulation, obvious reduction of the usage amount and the usage frequency of the bactericide, lower cost and drug resistance of plant disease deferment. Meanwhile, the levorotatory terpineol as monoterpene alcohols prepared by compounding natural renewable resources can be degraded easily in environment, and meets environment friendly requirement. Moreover, micro-emulsion and aqueous emulsion relevant to the invention replace organic solvent with water portion, and environment pollution is reduced as well.

The invention discloses a chrysanthemum essence for hand cream, which is characterized by comprising the following components by weight percent: 2 parts of vetiver oil, 2 parts of cinnamon bark oil, 14 parts of sandal oil, 28 parts of alpha-terpineol, 8 parts of jasmine fragrance base, 36 parts of geranium oil, 20 parts of ylang ylang oil, 30 parts of hydroxycitronellal, 20 parts of lavender oil, 12 parts of bergamot oil, 8 parts of isoeugenol, 2 parts of iris resin, 2 parts of musk ketone, 8 parts of Peru musk, 16 parts of heliotropin and 2 parts of vanillin. The chrysanthemum essence for the hand cream is suitable for fragrance products of white cream, skin milk, fragrant molasses and the like, has no defect of discoloration, and has the advantages of pure and rich fragrance, strong durability, extremely less using quantity and the like.

The invention discloses saccharomyces cerevisiae capable of auto-synthesizing terpenoid substances and applications thereof, belonging to the field of fermentation engineering. The saccharomyces cerevisiae capable of auto-synthesizing various terpenoid substances denovo is screened from fermented grains of white wine. The stain is preserved in the general microbiology centre in China on September 4, 2013, and the preservation number is CGMCC No.8130. The strain is subjected to liquid-state or solid-state fermented cultivation so as to generate ten kinds of terpenoid substances including linalool, alpha-terpineol, citronellol, myrcenol, nerolidol, alpha-dragosantol, farnesol, alpha-farnesene, beta-farnesene and bisabolene. The cerevisiae strain is added in the wine making process and can improve the flavor of white wine and increase the nutritive value of white wine.

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.

The invention provides an orange essence, consisting of the following components in parts by weight: 1-100 parts of an essence base, 10-50 parts of a solvent, 0-20 parts of a surfactant, 0-15 parts of a cosurfactant and 20-80 parts of a carrier, wherein the essence base consists of the following components in parts by weight: 10-40 parts of citral, 10-40 parts of linalool, 10-40 parts of terpineol, 0-10 parts of peach aldehyde, 5-10 parts of ethyl acetate, 1-30 parts of ethyl butyrate, 5-15 parts of dihydro jasmone, 5-20 parts of ethyl caproate, 5-20 parts of isobutyl acetate and 5-10 parts of lemon oil. The orange essence provided by the invention has a fresh fragrance of an orange juice, and enables consumers to feel the flavor of oranges.

The present invention relates to a natural plant type coating and its preparation method. Said coating is formed from high-molecular film-forming material, pigment, adjuvant and solvent. It is characterized by that the oil material adopted in the high-molecular film-forming material contains 30-40 portions of linseed oil, 35-45 portions of limonene, 5-15 portions of polybasic alcohol, the polybasic acid contains 8-15 portions of phthalic anhydride and 2-5 portions of trimellitic anhydride, the adjuvant is 0.02-0.1 portion of catalyst lithium hydroxide, the dryer is 1-3 portions of composite rare earth, and the solvent contains 5-10 portions of pine cone oil and 5-10 portions of terpineol, the above-mentioned raw materials are mixed to obtain the invented film-forming material. Besides, it adopts deionized water, adds 18-35 portions of pigment titanium dioxide, adds drying, dispersing, anti-freezing, defoaming, anti-corrosion and film-forming adjuvants, and adds medicinal talcum powder and natural calcium carbonate and stirs them to obtain slurry material for stand-by, then said invention utilizes 10-20 portions of film-forming material to make emulsification, adds deionized water and the above-mentioned slurry material, and adds thickening agent, mixes them so s to obtain the invented coating.

The present invention relates to a one-step method of catalytic synthesis of alpha-terpineol with nano polyaniline solid acid and solid acid catalyst. The method is characterized in that the raw material of turpentine (with the content of alpha-pinene more than 85 percent) and the solvent of ethanol are used for the one-step synthesis of the alpha-terpineol when the nano polyaniline solid acid mixed with acid is used as a catalyst. The catalyst of the nano polyaniline solid acid can be prepared in a simple way; the cost is low; and the catalyst has high catalytic activity and selectivity for the one-step hydration to prepare the alpha-terpineol (the transformation ratio of the alpha-pinene reaches to more than 95 percent and the yield of the alpha-terpineol reaches to more than 65 percent). At the same time, the catalyst has the characteristics of simple separation and long service life.

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.

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.

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.

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.

A perfume composition includes groups of perfume components that produce enhanced sensory performance. The composition includes components that have synergistic odor properties. A perfume composition comprises at least four members selected from the group (1A) consisting of acetyl cedrene, Camphor powder synthetic, Cedarwood oil, cineole, cinnamic aldehyde (10), cistus labdanum, citral dimethyl acetal, Cosmone, Cyclal C, beta damascone (10), delta damascone (10), Ebanol (10), ethyl vanillin (10), eugenol, Galbanone (10), gamma undecalactone, heliotropin, hexyl cinnamic aldehyde, iso E Super, alpha iso methyl ionone, Mayol, methyl chavicol, methyl cinnamate, methyl ethyl 2 butyrate, Silvanone, Silvial, alpha terpineol, allyl hexanoate, Labienoxime (10), anisic aldehyde(10), Black Pepper Oil, Polysantol(10), Habanolide, dihydroeugenol, Melonal, Violetyne(10), methyl benzoate, Raspberry ketone, and mixtures thereof wherein the total amount of these members is from about 40% to about 80% by weight of the composition; and at least one member selected from the group (1b) consisting of alkyl alcohols, phenyl alkylalcohols, terpene hydrocarbons and mixtures thereof in amounts from about 5% to about 50% by weight of the composition.

The invention discloses a disinfectant composition comprising tebuconazole and levorotatory alpha-terpilenol and a production method thereof. The disinfectant composition is characterized by comprising the following active components in percentage by weight: 1-40 percent of tebuconazole, 1-40 percent of levorotatory alpha-terpilenol and the balance of addition agents, wherein the addition agents comprise missible oil, microemulsion and aqueous emulsion. The disinfectant composition enlarges a disinfection list after being compounded, has obvious synergy, obviously reduces the use quantity and the use time of a disinfectant, can simultaneously prevent multiple diseases, has a longer lasting period, delays the drug resistance of diseases and can be used for preventing sigatoka, leaf spots of peanuts, powdery mildew of cucumbers and apple alternaria blotches, in addition, the levorotatory alpha-terpilenol is used as monoterpene alcohol compounded by turpentine as a vegetal renewable resource, has low toxicity and is easy to degrade, and the related microemulsion and the aqueous emulsion use water to partially replace an organic solvent in order to reduce environment pollution.

The invention relates to a high-temperature co-fired ceramic thick-film conductor slurry, which includes powder and suspension. The weight percentages of powder and suspension are: powder 80-90%; suspension 10-20%, and the powder includes tungsten powder and inorganic binder, the weight percentage of each component is: tungsten powder 92~96%; inorganic binder 4~8%, the inorganic binder is alumina powder, and the suspension includes terpineol, ethyl cellulose And dibutyl phthalate, the weight percentage of each component is: 92-96% of terpineol; 3-7% of ethyl cellulose; 0.5-2% of dibutyl phthalate. The present invention simply uses alumina as the inorganic binder, and the main component of the alumina ceramic substrate is alumina, and simply uses alumina as the inorganic binder. During the sintering process, the inorganic binder and the alumina ceramic substrate and particles The chemical reaction occurs, which is conducive to the bonding and fixing of the conductor and the ceramic substrate, the matching is good, and the metallization layer is denser.

Water-based essence having lemon fragrance is disclosed. The essence includes, by mass, 25-30 parts of aldehyde-removed ethanol, 20-25 parts of lime oil, 2-3 parts of linalool, 0.1-1 part of bornyl acetate, 3-4 parts of terpineol, 4-5 parts of L-carvone, 3-4 parts of geranyl acetate, 1-2 parts of longifolyl acetate, and 35-40 parts of propylene glycol. The essence has refreshing and pleasant lemon fragrance, the fragrance is refreshing and pleasant and long in duration time, and the essence can be dissolved into water and can remove smell of hot pot during cloth washing.

The invention discloses a wine saccharomycopsis vini LA24, and the preservation number is CGMCC No.13676. The saccharomycopsis vini can be applied to the production of monoterpene organisms and the mixed fermentation with saccharomyces cerevisiae to brew wine. Compared with a model saccharomyces cerevisiae strain, a YPD culture medium is taken as a substrate, the strain is fermented to acquire four monoterpenes of citronellol, geraniol, linalool and alpha-terpilenol, but the saccharomyces cerevisiae rarely produces or completely does not produce monoterpenes. The strain is separated and identified from a grape garden for the first time in the domestic country, and that the strain in the wine saccharomycopsis vini has the capability of de novo synthesis of the monoterpenes is confirmed for the first time. The acquisition of the strain provides important material and technique supports for the development of the high-yield monoterpene engineering bacteria.

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.