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71 results about "Dihydromyrcenol" patented technology

Dihydromyrcenol is a monoterpenoid that is oct-7-en-2-ol substituted by methyl groups at positions 2 and 6 respectively. It has a role as a fragrance and a metabolite. It is a monoterpenoid and a tertiary alcohol.

Fragrance compositions

A method of promoting activated, pleasant moods through the inhalation of energising, non-stressing fragrances (invigorating fragrances) comprising at least 75% by weight, preferably 85% by weight of perfume materials drawn from the following groups:
  • A) At least 10% by weight in total of at least three materials drawn from Group ‘IMP’ comprising: allyl amyl glycolate; benzyl salicylate; bergamot oil; coriander oil; cyclamen aldehyde; 1-(2,6,10-trimethylcyclododeca-2,5,9-trien-1-yl)ethanone; allyl (cyclohexyloxy)acetate; Damascenia 185 SAE; 2,4-dimethylheptan-1-ol; fir balsam; fir needle oil; 3-(4-ethylphenyl)-2,2-dimethylpropanal; ginger oil; guaiacwood; linalyl acetate; litsea cubeba oil; methyl 2,4-dihydroxy-3,6-dimethylbenzoate; nutmeg oil; olibanum oil; orange flower oil; Ozonal AB 7203C; patchouli oil; rose oxide; rosemary oil; sage clary oil; spearmint oil; Tamarine AB 8212E; tarragon oil;
  • B) Optionally up to 90% of materials from the following groups:
    • Group ‘HMR’ comprising:
    • allyl ionone; benzyl acetate; cis-jasmone; citronellol; ethyl linalol; ethylene brassylate; 4-methyl-2-(2-methylpropyl)tetrahydro-2H-pyran-4-ol; geraniol; geranium oil; isoeugenol; lemon oil; 2,4-dimethylcyclohex-3-ene-1-carbaldehyde; 3-(4-hydroxy-4-methylpentyl)cyclohex-3-ene-1-carbaldehyde; 4-(4-hydroxy-4-methylpentyl)cyclohex-3-ene-1-carbaldehyde; alpha-iso-methyl ionone; 3-methylcyclopentadec-2-en-1-one; cyclopentadecanone; cyclohexadecanolide; gamma-undecalactone.
    • Group ‘HMI’ comprising:
    • 1-{[2-(1,1 -dimethylethyl)cyclohexyl]oxy}butan-2-ol; 3a,6,6,9a-tetramethyldodecahydronaphtho[2,1 -{b}]furan; alpha-damascone; dihydromyrcenol; eugenol; 3-(1,3-benzodioxol-5-yl)-2-methylpropanal; 2,4-dimethylcyclohex-3-ene-1-carbaldehyde; mandarin oil; orange oil; 2-(1,1-dimethylethyl)cyclohexyl acetate.
    • Group ‘HMP’ comprising:
    • 1-(2,6,6,8-tetramethyltricyclo[5.3.1.0 {1,5}]undec-8-en-9-yl)ethanone; allyl cyclohexyl propionate; allyl heptanoate; Apple Oliffac S pcmf; 7-methyl-2H-1,5-benzodioxepin-3(4H)-one; cassis base; cis-3-hexenyl salicylate; damascenone; gamma-decalactone; ethyl acetoacetate; ethyl maltol; ethyl methyl phenylglycidate; hexyl acetate; (3E)-4-methyldec-3-en-5-ol; 2,5,5-trimethyl-6,6-bis(methyloxy)hex-2-ene; 4-(4-hydroxyphenyl)butan-2-one; styrallyl acetate; 2,2,5-trimethyl-5-pentylcyclopentanone; ylang oil. Group ‘RMP’ comprising: anisic aldehyde; (2Z)-2-ethyl-4-(2,2,3-trimethylcyclopent-3-en-1-yl)but-2-en-1-ol; benzoin siam resinoid; ethyl vanillin; oxacyclohexadec-12(13)-en-2-one; hexyl salicylate; hydroxycitronellal; jasmin oil; 3-methyl-5-phenylpentan-1-ol; 2-(phenyloxy)ethyl 2-methylpropanoate; alpha-terpineol; vanillin;
    • Group ‘GEN’ comprising:
    • cyclopentadecanolide; oxacyclohexadecan-2-one; hexyl cinnamic aldehyde; ionone beta; isobornyl cyclohexanol; 1-(2,3,8,8-tetramethyl-1,2,3,4,5,6,7(8),8(8a)-octahydronaphthalen-2-yl)ethanone; 4-(1,1-dimethylethyl)phenyl]-2-methylpropanal; linalol; methyl dihydrojasmonate; 2-phenylethanol;
    • provided the following conditions are met:
    • (a) IMPs>=HMPs+HMRs
    • (b) IMPs+HMIs+GENs>=70%
    • (c) (IMP+HMI)/(IMP+HMI+RMP+HMR)>=0.7
    • (d) IMPs/(HMPs+RMPs+IMPs)>=0.5
    • (e) IMPs/[(HMPs+RMPs+IMPs)+(100−TOTAL)]>=0.3
    • wherein ‘IMPs’ indicates the sum of the percentages of materials within Group IMP, and similarly for the remaining groups, the symbol ‘>=’ indicates ‘at least equal to’, and ‘TOTAL’ is the sum of HMPs, HMRs, HMIs, IMPs, RMPs and GENs, provided also that low odour or no odour solvents are excluded from the calculation of these sums is provided which have an invigorating effect when inhaled by a subject.
Owner:GIVAUDAN NEDERLAND SERVICES

Environment-friendly process for producing dihydromyrcenol by using dihydromyrcene hydration reaction

The invention discloses an environment-friendly process for producing dihydromyrcenol by using a dihydromyrcene hydration reaction. The process adopts an integrated system consisting of a jet reaction device, an oil-water separation device and a rectification device. A high-speed injector is adopted in a reactor for reinforcing heat transfer and mass transfer of a reaction process; an acid (containing sulphuric acid, phosphoric acid and p-toluenesulfonic acid) is used as a catalyst and is in closed cycle; and an oil-water separator is arranged in the process flow to reduce the heat load of a rectification tower, and meanwhile the catalyst and the water phase in the oil-water separator are cycled and used in the system together so as to avoid the environment problems caused by the discharge of acid waste water. The process of the invention can improve the conversion rate of dihydromyrcene, and reduce the energy consumption and the production cost. Compared with a mechanical stirring reactor or a fixed bed reactor with the same scale, the process can improve the conversion rate of the dihydromyrcene by 1.2 to 4 times, and reduce the energy consumption of a dihydromyrcenol product per ton by more than 55 percent.
Owner:厦门中坤化学有限公司 +1

Production method of dihydromyrcenol

The invention provides a production method of a dihydromyrcenol. The technological processes are shown as the figure and carried out through the following step of: introducing dihydromyrcenol (hereafter referred to as DHM), water and a low-viscosity organic solvent X via a DHM feed pipe 1 and a water and solvent input pipe2 into a forced circulation radiation flow fixed bed (hereafter referred to as IRRFB) reactor 3. The pressure in the reactor is 0.12-0.28MPa; the IRRFB reactor 3 is provided with a barrel-shaped housing; a centre pipe 5 with two sealed ends and apertures covered on a side wall is arranged in the housing; and a catalyst fixed bed layer 4 made of metal nets and filled with catalysts is arranged outside the centre pipe 5. A reaction solution is pumped into the centre pipe 5, is introduced into the catalyst fixed bed layer 4 at a high speed in a radiation manner via the apertures on the side wall, penetrates through the catalyst fixed bed layer 4 to enter the housing of the reactor 3 and carries out a next round of circulation via a first pipeline 6 at the bottom. Firstly, oil and water are separated in a reacted liquid and a product is rectified twice, so that a product with a purity of 99.61% is obtained; and the once conversion rate is 10.6%, and the selectivity is 98.1%.
Owner:NANJING ENETEKS

Method for continuously producing dihydromyrcenol by using tubular reactor

The invention discloses a method for continuously producing dihydromyrcenol by using a tubular reactor. The method comprises the following steps: mixing dihydromyrcene, water and solvent in a mixer; after mixing, heating the mixture to 70-95 DEG C by a pre-heater and pouring the mixture into the tubular reactor; heating and controlling the reaction temperature in the tubular reactor at 100-120 DEG C by adopting a short circuit current; pouring a reaction product in the tubular reactor into a phase splitter; after splitting the phases by the phase splitter, further separating the upper-layer organic phase in a rectifying column; pouring the upper-layer organic phase into the rectifying column after splitting the phases by the phase splitter, causing the dihydromyrcenol as a heavy component to flow to a tower kettle; and extracting the dihydromyrcenol with purity above 95% by the tower kettle. The tubular reactor is adopted according to the method provided by the invention, for reducing liquid back-mixing, reducing energy consumption and avoiding the quick decrease of reaction rate in the later stage of reaction. A fin is arranged on the inner wall of the tubular reactor, for reinforcing the liquid flow, boosting the matter-transferring and heat-transferring of reaction, increasing the reaction rate and meanwhile avoiding the powdering of solid catalyst caused by stirring.
Owner:淮安市产品质量监督检验所

Dihydromyrcenol polyoxyethylene ether and synthetic method thereof

The invention discloses dihydromyrcenol polyoxyethylene ether and a synthetic method thereof. The dihydromyrcenol polyoxyethylene ether is synthesized from the following raw materials: dihydromyrcenol and ethylene oxide in the mol ratio of 1: (5-150) through two steps, in the presence of a catalyst accounting for 0.03-2% of the total weight of the raw materials dihydromyrcenol and ethylene oxide. The dihydromyrcenol polyoxyethylene ether having a large molecular weight is synthesized through two steps; the product is high in saturability and narrow in molecular weight distribution, and also increased in increase ratio and advantageous for synthesizing products higher in molecular weight. A high-performance polycarboxylic acid water reducing agent prepared from the dihydromyrcenol polyoxyethylene ether provided by the invention has good cement particle dispersity maintaining capability, and remains the advantages such as low dosage, high water-reducing rate, good collapse retaining property and environmental friendless; besides, as the high-performance polycarboxylic acid water reducing agent is enhanced in hydrophobicity in a large monomer structure and increased in molecular steric hindrance, the water reducing agent is remarkably enhanced in adaptability to dinas different in silt content and can be widely applied to high-silt content dinas districts.
Owner:SICHUAN SEDAR CHEM

Method for preparing dihydromyrcenol through reaction distillation continuity

The invention relates to a method for preparing dihydromyrcenol through reaction distillation continuity. Corrugated gauze filling materials and solid acid catalysts are filled in a reaction distillation tower, raw materials of dihydromyrcene, water and solvents are respectively preheated to 80 to 120 DEG C, 85 to 95 DEG C and 70 to 90 DEG C to be respectively fed from the upper part, the middle part and the lower part of a reaction section of the reaction distillation tower according to the flow rate ratio of (1-3): (1-3). The tower kettle temperature is controlled to be 105 to 120 DEG C, and the tower top condensing temperature is controlled to be 50 to 70 DEG C. An oil phase and a water phase are separated out from condensed liquid, partial oil phase reaches the tower top to flow back, and the water phase and the rest oil phase respectively return a raw material tank to be cyclically utilized. According to the method, the reaction and the distillation are simultaneously carried out, heat released by the reaction can be effectively utilized for heating materials, and a heat load of a tower kettle is reduced. The corrugated gauze filling materials in the reaction distillation tower and a tubular liquid distributor are favorable for improving the effective surfaces for mass transfer and heat transfer and improving the inter phase contact, dihydromyrcenol products with the purity being 95 percent are obtained from the tower bottom, and the reaction efficiency and the dihydromyrcenol conversion rate are higher.
Owner:淮安市产品质量监督检验所

Dihydromyrcenol fixed bed hydration continuous production method

The invention discloses a production method of spice and in particular relates to a dihydromyrcenol fixed bed hydration continuous production method. The method comprises the following steps of: allowing dihydromyrcene, water or aqueous solution of a solvent to enter a feeding preheater respectively through a head tank and a flowmeter to perform preheating; allowing the reaction materials to enter a tubular reactor continuously and then overflow into an oil water separator to be separated; and allowing the lower layer aqueous phase to enter a reaction system continuously and circularly and allowing the oil layer to enter a rectifying tower to perform rectification, wherein the tower is provided with three discharge ports; and materials of different concentrations are discharged from the discharge ports respectively. The method has the advantages of really realizing zero emission of waste water, making the using ratio of pure water close to 100 percent, saving cost of raw materials, exchanging catalysts conveniently and simply, greatly prolonging the service life of the catalysts, solving the problem of escape of the catalysts, expanding easily, fulfilling the aim of zero use of the solvent and saving solvent cost, along with low equipment investment and wide application.
Owner:JIANGSU XINHUA CHEM
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