10 results about "Amyl alcohol" patented technology

The application provides a method for synthesizing 2,4,4-trimethyl-2-pentanol from diisobutene by esterification hydration, comprising the following steps: S1, esterification hydration reaction: diisobutene, organic acid and water are reacted in the presence of a catalyst; S2, separation and recovery: S3, hydrogenation reaction: 2,4,4-trimethyl-2-pentyl acetate recovered in step S2.5 is subjected to catalytic hydrogenation to generate a hydrogenation reaction liquid containing 2,4,4-trimethyl-2-pentanol and ethanol; S4, the hydrogenation reaction liquid obtained in step S3 is separated, and TMPOL is synthesized by using the above method with the organic acid as a medium, the single-pass conversion rate of diisobutene can reach 50%, and the selectivity reaches 99%. The process has the characteristics of high efficiency and high atom economy, and has great industrialization potential.

The present application relates to a kind of preparation methods of caprolactone, comprising the following steps: in the presence of catalyst, raw material 2-alkenyl alcohol is reacted with carbon monoxide and hydrogen to prepare caprolactone.The catalyst includes nickel and / or cobalt, phosphorus nitrogen ligand and adjuvant.Compared with prior production process, using 2-alkenyl alcohol and synthesis gas one-step reaction to prepare caprolactone, avoid using high-risk peroxide.And using non-noble metal coupling phosphorus nitrogen ligand catalytic system carries out carbonylation reaction, greatly improves the selectivity of caprolactone.

The present application relates to the field of liquor brewing, and particularly to a solid fermentation liquor brewing method for reducing the content of higher alcohols; the method constructs a mechanism for targeted inhibition of isobutanol, isoamyl alcohol and n-propyl alcohol and promotion of the generation of ethyl hexanoate; accurate quantification and comparison by gas chromatography-mass spectrometry show that the core of the method is to significantly reduce higher alcohols and improve key aroma substances; the method of the present application blocks the synthesis of higher alcohols without changing the proportion of traditional flavor substances of liquor, guarantees the liquor yield, reduces the nervous stimulation after drinking, and improves the metabolic clearance rate of ethanol in the body.

The purpose of this invention is to provide an alcoholic beverage that can suppress the bitterness produced by kaempferol and alcohol. An alcoholic beverage is characterized by containing 100 ppb to 15000 ppb of kaempferol, more than 50 ppb of γ-nonanolactone, and isoamyl alcohol.

The present application relates to the technical field of removing miscellaneous taste, and particularly relates to a method for reducing harmful components and improving beneficial components in liquor, wherein base liquor is subjected to ultrasonic oscillation, the power density of the ultrasonic oscillation is controlled to be 100-150 W / cm 2 , the ultrasonic frequency is 17.4-18.0 kHz, the ultrasonic wave duty cycle is 25-33%, the pulse width is 67-80, and the processing time is 12-16 min. With the frequency of 17.4 kHz or above and the processing time of 12-16 min, great shearing force is given to the molecules in the liquor body, which can effectively destroy the molecular structure of acetaldehyde and isoamyl alcohol, and convert other short-chain substances, which is helpful for human body digestion and metabolism. Similarly, the high-frequency ultrasonic shearing force can destroy the molecular structure of the protein in the liquor, and convert the protein into beneficial substances such as amino acids and tetramethylpyrazine, which not only can be helpful for human body, but also can improve the aroma and refreshing degree of the liquor.

The present disclosure relates to fluorinated tetra(Ci-C6alkyl)ammonium and C x solid alcohol solvate of an alcohol (where x is 3, 5, 6, 7, 8, 9, or 10). A particularly disclosed example of such a solid alcohol solvate is fluorinated tetra-n-butylammonium tetra(tert-pentanol). The present disclosure also relates to methods of making such solid alcohol solvates, as well as methods of forming a substantially water-free mixture, wherein the mixture comprises a fluorinated ammonium.

The application discloses coffee essence, atomized liquid and electronic atomization device, and belongs to the field of electronic atomizers. The coffee essence comprises 2-acetylpyrrole, vanillin, methylcyclopentenolone, maltol, furfuryl acetate, guaiacol, isopentyl alcohol propylene glycol solution, furfuryl mercaptan, 2-ethyl-3,5-dimethylpyrazine, isovaleric acid propylene glycol solution, 2,3,5-trimethylpyrazine, isobutyraldehyde, 2-methyl-3-(methylthio)pyrazine, isoamyl aldehyde, trigonellin, 4-hydroxy-2,5-dimethyl-3(2H)-furanone, 5-methylfurfural, dimethyl sulfide, 2-acetylfuran, 5-hydroxyethyl-4-methylthiazole, 2-acetylpyrazine, 4-ethylguaiacol, acetic acid, propionic acid, acetaldehyde propylene glycol solution, 4-methyl-5-(2-acetyloxyethyl)-thiazole and propylene glycol. The coffee essence has good stability, good compatibility and can accurately restore the real coffee roasting aroma.

This application provides a method for phase analysis of manganese in ores, belonging to the field of phase analysis of ores. The method involves weighing an ore sample and sequentially leaching it with silver nitrate solution to separate the manganese sulfate phase; then leaching it with aluminum nitrate solution under heating, adding a mixed solution of isoamyl alcohol and isoamyl acetate as a first inhibitor to separate the manganese carbonate phase; followed by stepwise leaching with sulfurous acid solution and hydroxylamine sulfate-sulfuric acid solution, adding a mixed solution of n-butanol and ethyl acetate as a second inhibitor to separate the manganese oxide phase; and finally, the remaining residue is digested by ashing to obtain the silicate phase. The manganese content of each phase digest is determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). This application rationally selects various possible forms of manganese in the ore and scientifically selects the leaching agent for each phase, ensuring that the leaching agent of the previous phase does not leach manganese from the subsequent phases, thus guaranteeing accurate determination of each phase.

Disclosed are pet food compositions and methods for producing such pet food compositions, which include utilizing a palatability enhancer selected from the group consisting of dimethyl sulfide, isoamyl alcohol, 2-methyloxolan-3-one, 2,5-dimethylpyrazine, 2-ethyl-3,5-dimethylpyrazine, furfural, furfuryl alcohol, and combinations thereof, wherein the composition contains at least one of the compound combinations provided in Table 10 in the ratios provided in Table 10.

The application discloses a method for separating lignocellulose biomass by using a two-phase system, wherein mixed organic solvents are used as the organic phase, dilute sulfuric acid is used as the water phase, and the lignocellulose biomass is separated into three phases in an autoclave under certain conditions, and then the solid phase rich in cellulose, the organic phase containing lignin and the water phase containing xylose are obtained by filtration and liquid separation. The mixed organic solvents are selected from any one of acetone and amyl alcohol, and a mixed solution of phenol and amyl alcohol. The method has the advantages of low reaction temperature, short processing time, recycling of xylose as a conversion product of hemicellulose, and simultaneous realization of efficient separation or conversion of three main components of lignocellulose biomass.