115 results about "Methyl palmitate" patented technology

Lamp oil compositions including methyl palmitate, methyl stearate, myristyl alcohol, an alcohol with less than six carbons, preferably ethyl alcohol, and fragrance. Also disclosed herein are lighter fluid compositions which include methyl laurate, methyl stearate, ethyl alcohol and fragrance.

The invention discloses a preparation method of a clay-based composite phase-change energy storage deicing (snow melting) material. The preparation method is characterized in that a composite phase-change energy storage material is prepared from a low-temperature organic phase-change material and a clay material, wherein the low-temperature organic phase-change material is prepared by single-element or multi-element mixing of various organic phase-change materials and is then physically compounded with the treated clay to prepare the clay-based composite phase-change energy storage deicing (snow melting) material. The low-temperature organic phase-change material is selected from polyethylene glycol-300, polyethylene glycol-400, polyethylene glycol-500, polyethylene glycol-600, decyl alcohol, undecanol, dodecanol, heptylic acid, octanoic acid, nonanoic acid, capric acid, methyl laurate, methyl myristate, methyl palmitate, tetradecane, pentadecane, hexadecane, heptadecane, octodecane, nonadecane and the like. The clay material is selected from kaolinite, montmorillonite, bentonite, vermiculite, halloysite, sepiolite, attapulgite, perlite, diatomite, rectorite, zeolite, silicon dioxide, dolomite, calcite and illite. The prepared composite phase-change energy storage deicing (snow melting) material is proper in phase-change temperature (0-5 DEG C), high in phase-change latent heat and high in heat stability.

The invention discloses a preparation method of a methyl hexadecanoate-methyl stearate composite phase-change energy-storage material. The preparation method of the methyl hexadecanoate-methyl stearate composite phase-change energy-storage material comprises the following steps that methyl hexadecanoate and methyl stearate are added to a reaction container according to the mass ratio of one fourth to four, the mixture is heated in a thermostatic water bath and stirred for 25-35 min, the mixture is then cooled to the indoor temperature, and then the methyl hexadecanoate-methyl stearate composite phase-change energy-storage material is obtained, wherein the temperature of the thermostatic water bath is set to be 50-70 DEG C. According to the preparation method of the methyl hexadecanoate-methyl stearate composite phase-change energy-storage material, the phase change material has the advantages that the phase change latent heat is high, the volume change in the phase change process is small, the surface temperature fluctuation is low, the phase change material is well fused with a building material and low in cost, and the phase change temperature of the phase change material is closest to the indoor and outdoor optimum temperatures, and the advantages of the phase change material are utilized for synthesis of the composite phase-change energy-storage material; and the phase change temperature of the composite phase-change energy-storage material is obviously lower than a single phase change material, the comfortable state that the indoor temperature gradient is lowered to be smaller than 5 DEG C can be achieved, the service efficiency of an air conditioner is improved, and energy is saved.

The invention discloses an additive containing deoxyfructosazine for applying fragrance compensation to low-tar cigarettes, which is characterized in that the additive comprises the following raw materials: 0.001 to 5 percent of deoxyfructosazine, 0 to 1 percent of furfural, 0.1 to 0.5 percent of 5-methyl-furfural, 0.1 to 1 percent of 3-ethyl-2-hydroxyl-2-cyclopentene-1-ketone, 0.005 to 5 percent of Peru concrete, 0.1 to 1 percent of methyl palmitate, 0.1 to 1 percent of damascenone, 0.1 to 2 percent of Megastigmatrieno, 0.1 to 3 percent of cocoa powder tincture, 0 to 1 percent of propionic acid, and 82 to 99 percent of ethanol containing 50 percent of water in weight percentages; the additive with a weight percentage of 0.1 to 5 percent is used for aromatizing tobacco leaves or coil paper of dark color, and can obviously improve the fragrance volume of high-tar and low-tar cigarettes and also has good compatibility with tobacco flavor, decreases stimulation and improves the comfort degree of nonnasality.

The invention discloses a lubricating agent composition for white alloy cold drawing machining. A compound of HVIH14 and methyl palmitate is adopted as basic oil and cooperates with various composite additives. The lubricating agent composition includes antioxidant, a metal passivator, an oiliness agent, antiwear agent, an extreme pressure agent, a friction improver, a viscosity index improver, a filling agent, antirust agent and others. The composition has the advantages that the number of machined workpieces and molds needing to be rubbed, lubricated and cooled is reduced, power consumption is lowered, and deformation is uniform; the service life of a tool is prolonged, and abrasion of workpiece materials is controlled; the quality of the surface of machined metal is improved, and the tolerance of the surface of the machined metal is reduced; temperature is controlled, and machining deformation is reduced; new and old surfaces of the machined metal are kept oxidized or passivated; using is safe, and toxins do not exist; residues do not affect machining and operating, and cleaning is convenient.

The invention belongs to the field of soil remediation, and discloses a combined restoration method of polycyclic aromatic hydrocarbon polluted soil, which comprises the following steps: (1) putting polycyclic aromatic hydrocarbon polluted soil in a bioreactor, adding water at room temperature, and stirring; (2) adding 5-30U of subtilisin to every gram soil of into the bioreactor, and stirring at 30 rpm; (3) while stirring, adding sodium palmitate and methyl palmitate into the bioreactor, and continuing stirring, wherein the sodium palmitate accounts for 3.5-5 wt% of the soil, and the methyl palmitate accounts for 0.8-1.6 wt% of the soil; and (4) adding cotton straw powder into the bioreactor (the cotton straw powder accounts for 1.5-4.5 wt%), continuing stirring for 2 hours, standing, separating the soil from water, and drying to obtain the remediated soil.

The present invention relates to a semiochemical composition comprising methyl palmitate, methyl linoleate, methyl oleate methyl stearate, methyl laurate, methyl myristate, salts thereof, derivatives thereof, isomers thereof and / or structural analogues thereof that have an appeasing effect in cats and / or also effects social facilitation in cats, and an acceptable vehicle. Solutions such as spot-on formulations of long duration are also encompassed. Methods to effect appeasing in a cat and / or social facilitation in cats are also disclosed.

The invention discloses an improved method for measuring the fatty acid composition of sorbitan monostearate. The method comprises: taking a sample and placing the sample into a flask; adding a potassium hydroxide methanol solution, carrying out heating refluxing, and carrying out cooling; adding a methanol solution, carrying out heating refluxing, and carrying out cooling; adding normal hexane, and carrying out heating refluxing continuously, and carrying out cooling; adding a saturated sodium chloride solution, carrying out shaking uniformly, carrying out standing for layering, and taking supernatant fluid and carrying out anhydrous sodium sulfate drying; carrying out testing based on a gas chromatographic method; with a capillary column with polyethylene glycol as stationary liquid as achromatographic column, taking a proper amount of methyl palmitate and methyl stearate reference substances respectively and carrying out dilution to make a solution containing 1mg of methyl palmitate and 1mg of methyl stearate respectively per 1ml under conditions of keeping the feeding inlet temperature of 240 DEG C and the detector temperature of 280 DEG C; injecting the solution into a gas chromatograph and recording a chromatogram map with the separation degrees of all chromatographic peaks meeting requirements; and taking the supernatant fluid and injecting the fluid into the gas chromatograph, recording a chromatogram map, and carrying out calculation with a peak area based on an area normalization method. With the disclosed method, the error rate is low.

The invention relates to a phosphate ore reverse flotation collecting agent capable of removing calcite. The collecting agent is formed by compounding 80-90 % of a soaping agent with 10-20% of a composite surfactant by weight, wherein the soaping agent is formed by compounding 15% of cottonseed oil soap, 15% of soybean oil soap, 10% of rosin soap, 25% of rice bran oil soap and 35% of palm oil soap, and the composite surfactant is formed by compounding 25% of sodium diethylhexyl sulfosuccinate, 25% of sodium methyl palmitate sulfonate and 50% of diethyl phthalate. The collecting agent is suitable for the sedimentary type phosphate block rock reverse flotation foam floating process capable of removing calcite. The collecting agent has the characteristics of good selectivity and high concentrate recovery rate.

The invention provides an aluminum rolling composite additive which is prepared from, by mass, 65.0-79.0% of mixed alcohol additives, 15.0-25.0% of mixed fatty alcohol acid ester additives and 6.0-12.0% of aluminum rolling base oil. The mixed alcohol additives are prepared from, by mass, 15.0-25.0% of n-decyl alcohol, 28.0-38.0% of dodecanol and 40.0-50.0% of myristyl alcohol. The mixed fatty alcohol acid ester additives are prepared from, by mass, 70.0-80.0% of tetradecanoic acid-methyl ester and 20.0-30.0% of methyl palmitate. Compared with the prior art, the aluminum rolling composite additive has the advantages of being good in annealing detergency, high in annealing product surface quality and low in annealing energy consumption.

The invention provides an active solvent for relieving sump oil blockage of a water injection well. The active solvent is prepared by mixing fatty acid methyl ester, a penetrating agent and organic alkali, wherein the weight percent of the penetrating agent is 1-5%; the weight percent of the organic alkali is 5-20%; and the others are fatty acid methyl ester; the penetrating agent is selected from isooctyl alcohol polyoxyethylene ether-4, isooctyl alcohol sulphonated succinate or isooctyl alcohol polyoxyethylene ether phosphate-4; the organic alkali is selected from one or more of triethanolamine, triethylamine, diethylamine or dimethylamine; the fatty acid methyl ester is selected from one or more of methyl laurate, methyl palmitate, methyl oleate and methyl stearate; and the fatty acid methyl ester has strong dissolving capacity on the sump oil; the sump oil injected on an infiltration surface of the water injection well can be dissolved, and pushed away from the infiltration surface of the water injection well; tallate and methanol can be generated after the sump oil is hydrolyzed in stratum; the carried sump oil can be precipitated to advance towards the deep part of the stratum continuously. Thus, the effect of the sump oil on the infiltration surface of a near well is relieved.