179results about "Fatty acids production/refining" patented technology

The invention discloses a method for efficiently preparing a fatty acid type anti-wear agent based on biodiesel, which comprises the following steps: freezing and crystallizing the raw material biodiesel, filtering, evaporating and dealcoholizing, carrying out enzyme hydrolysis, insulating and layering, and rectifying under reduced pressure to finally obtain the fatty acid type anti-wear agent. Wherein the fatty acid composition of the crude methyl ester can be directionally regulated and controlled through freezing crystallization and filtering processes; through the synergistic effect of enzyme hydrolysis reaction and high-vacuum rectification separation coupling, efficient production of the fatty acid anti-wear agent prepared from biodiesel is achieved, the production period is greatly shortened, and the product quality is improved. According to the technology disclosed by the invention, the high-quality fatty acid type anti-wear agent can be produced economically, greenly, efficiently and stably, and the acid value of the product is stabilized between 198-203mgKOH / g oil and meets the Q / SHCG 57-2017 standard. The method has the advantages of low raw material requirement, wide application range, high production efficiency, high product quality, reproducible and reusable catalyst and the like, and is suitable for industrial production.

The invention relates to the technical field of separation and purification, in particular to a method for recovering cis-15-tetracosenoic acid from an acer truncatum seed oil byproduct, which comprises the following steps: selecting the acer truncatum seed oil byproduct, crushing, sieving, washing, adding modified attapulgite and beta-cyclodextrin, stirring and adsorbing at constant temperature, and filtering; preparing the modified attapulgite; adding a KOH-EtOH solution containing lipase and polyethylene glycol into a pretreated product for refluxing, and adding a saturated saline solution for refluxing; standing and layering the reaction liquid, and extracting, acidifying, washing, drying and distilling an organic phase to obtain mixed fatty acid; and carrying out composite purification to obtain a pure cis-15-tetracosenoic acid product. According to the method, the purity and the extraction rate of the cis-15-tetracosenoic acid are remarkably improved, the oxidation, heat and storage stability of the product is enhanced, the color is improved, and the comprehensive application performance is better.

The application discloses an extraction method of functional fatty acid, which comprises the following steps: dissolving lanolin in an alcohol aqueous solution, adding an excess of strong alkali, and heating to perform saponification to obtain a saponification solution; adjusting the pH of the saponification solution to neutral or weak alkaline by using a strong acid aqueous solution; adding a calcium chloride alcohol aqueous solution to the saponification solution to obtain a calcium fatty acid precipitate, and washing the precipitate with an alcohol aqueous solution; taking the calcium fatty acid precipitate, adding water, and adjusting the pH to strong acidity, and performing acidification under the condition of ultrasonic heating; adding an extraction solvent to perform extraction and separation, removing the water phase, reserving the organic phase, removing the extraction solvent by rotary evaporation, and obtaining the functional fatty acid. The application uses an ultrasonic acidification method to improve the technology of extracting functional fatty acid in lanolin by calcium precipitation, significantly solves the problem of calcium fatty acid acidification difficulty in lanolin, greatly improves the yield and purity of the functional fatty acid, and shortens the production time of the functional fatty acid.

The present invention relates to light-colored corn wax oxides, to a process for their preparation, and to their use for agricultural or forestry purposes, as additives in plastic processing, in care products, in printing inks and / or in paints, and to saponified or esterified corn wax oxides prepared by saponification or esterification of the said corn wax oxides.

The present application belongs to the technical field of biological oil catalytic hydrogenation, and particularly relates to a bio-based oil-soluble molybdenum catalyst, a preparation method and application thereof. The preparation method of the bio-based oil-soluble molybdenum catalyst provided by the present application comprises: mixing a molybdenum source, a bio-based linear organic acid with a carbon atom number of 16 or more and an additive, heating and reacting, and separating to obtain the bio-based oil-soluble molybdenum catalyst; the additive is selected from at least one of tetrahydro naphthalene and decahydro naphthalene. The bio-based oil-soluble molybdenum catalyst green material obtained by the present application has optimal activity and high dispersibility when used, can realize more sufficient mixing with raw materials, forms nano high-dispersed molybdenum sulfide through sulfuration, and realizes high-efficiency hydrogenation refining of oil products through the joint action of hydrogen and sulfur, while reducing the sulfur, oxygen and metal residues in the product oil.

The invention relates to the production of a triglyceride with Palmitic acid (P) in the middle position (XPX). A first transesterification process is used to produce a vegetable fat composition rich in palmitic acid and said intermediate composition is then further processed to produce triglycerides having a high proportion of its palmitic acid in the middle position.

The present invention is directed to a method for acidulation of tall oil soap in an alcohol selected from methanol, ethanol and / or iso-propanol. In the method according to the present invention, a mixture comprising sodium salts of fatty acids and rosin acids and an alcohol selected from methanol, ethanol and / or iso-propanol is acidulated using carbon dioxide.

The present invention is directed to tall oil rosin in solid, crystalline form. The tall oil rosin according to the present invention has a very low color, i.e. it is essentially color-less. The present invention is also directed to a process for producing the tall oil rosin and to the use of the tall oil rosin according to the present invention.

A process for the preparation of fatty acid products for use in animal feed comprises the steps of: i) providing a palm fatty acid distillate; ii) fractionating the palm fatty acid distillate to form a first fraction and a second fraction; and iii) separating the first fraction from the second fraction; wherein the first fraction comprises palmitic acid (C16:0) in an amount greater than about 60 wt.% and wherein the second fraction comprises palmitic acid (C16:0) in an amount from about 20 wt.% to about 55 wt.%, the percentages being based on the total weight of C12 to C24 fatty acids present in the respective fractions.

The invention relates to the technical field of grease chemical industry, and discloses high-iodine oleic acid and a preparation method thereof.The preparation method comprises the steps that waste grease is pretreated; adding a polar modifier into supercritical CO2 to selectively extract oleic acid; adding a polar accelerant compound system into the supercritical system to carry out iodination reaction; refining and separating the product through pressure gradient; and establishing a circulating reiodination system, and returning medium and low iodination products to the iodination step for continuous reaction through a supercritical phase back-mixing technology and precise iodine source addition. According to the method, the oleic acid extraction selectivity coefficient is increased by 40-60% by introducing the polar modifier, the iodination reaction rate is increased by 50-80% through a polar accelerant compounding system, the total yield is increased to 75-85% from 60-70% through a circulating reiodination system, the product purity reaches 95-98%, high-value utilization of the waste grease is achieved, the production cost is greatly reduced by 40-60%, and the method is suitable for industrial production. No organic solvent is left, and the method is environment-friendly.

This invention relates to the field of nervonic acid preparation technology, specifically to a high-efficiency separation device for nervonic acid from garlic fruit oil based on molecular distillation technology. The device includes a molecular distillation apparatus, internally comprising, from top to bottom, a driver, a film scraping system, and a condensation system. The film scraping system includes a rotating shroud driven by the driver, a centrifugal disc located at the bottom of the rotating shroud, a pressure rod located inside the rotating shroud, and a transmission rod rotating at the bottom of the pressure rod and slidably inserted into the centrifugal disc. The centrifugal disc of this invention uses centrifugal force generated by high-speed rotation to evenly distribute the material onto the evaporation wall, forming an initial ultrathin film. Simultaneously, the scraper rotates accordingly, performing secondary scraping and homogenization of the initial liquid film. Utilizing the synergistic structure of centrifugal material distribution and mechanical scraping, the problem of uneven material distribution in traditional methods is solved at its source, and dynamic renewal of the evaporation interface is achieved, thereby improving heat and mass transfer efficiency.

The invention relates to a process for obtaining free fatty acid and / or free fatty acid ester, in which a liquid mixture containing the free fatty acid and / or the fatty acid ester is separated by contacting a vapour of the liquid mixture in a column of a distillation apparatus with condensate formed from the vapour running downward, wherein heat and mass transfer takes place between the vapour and the condensate on column internals. According to the invention, the column has at least 10 theoretical plates and the separation is conducted with a pressure drop between the top and bottom of the column Δp of ≥ 3.3 mbar. Appropriately, the liquid mixture, preferably produced from vegetable oil or from fish oil, contains polyunsaturated fatty acid, preferably omega-6 or omega-3 fatty acid and / or alkyl monoesters and / or glycerol monoesters. In one configuration of the invention, the column has at least 30, preferably at least 40, theoretical plates and the separation is conducted with a pressure drop Δp between 3.5 mbar and 6 mbar.

A method can include receiving an oxygenate sample, fractioning the oxygenate sample into one or more fractions, and separating the fractions (e.g. using FAME fractionation, FAEE fractionation, crystallization, solvent extraction, or other similar methods). The fractions can optionally be separated independently. The method can optionally include esterifying carboxylic acids separated from the fractions with glycerol and deodorizing the glycerides.

To provide an aromatherapy support method and support system that enables a therapist to fully fulfill his / her original role without placing a burden on the therapist. [Solution] The system includes the steps of: conducting an autonomic nervous system analysis on the client to determine whether the client belongs to a sympathetic dominant, parasympathetic dominant, or well-balanced type; determining the client's complaints; transmitting basic information including the determined client type and complaint information to a system server; selecting the most suitable essential oils in the system server based on search keywords created from the basic information imported; calculating the blend ratio of the selected essential oils; and displaying the calculated blend ratio information on the screen of the therapist terminal.

The invention relates to the technical field of fatty acid oil preparation, in particular to a high-quality fatty acid oil preparation device which comprises a reaction tank and a fixing support fixed outside the reaction tank, a stirring mechanism is arranged in the reaction tank, an air cylinder is arranged at the top of the fixing support, and a connecting plate is fixedly installed at the telescopic shaft end of the air cylinder. And an adjusting rod is fixedly installed at the bottom of the end, away from the air cylinder, of the connecting plate, and a first auxiliary mechanism and a second auxiliary mechanism are arranged at the bottom of the adjusting rod. The problem that the temperature of surrounding grease and an area far away from the stirring device form a remarkable temperature difference is solved, the stirring mechanism is prevented from interfering sedimentation of soybean oil colloid, and meanwhile, the situation that layered soybean oil is affected by mistaken starting of the stirring mechanism during standing is avoided.

The present invention relates to the use of a fluid lubricant base comprising at least one biosourced and biodegradable compound having formula (I) in order to lubricate devices and / or machines, such as wind turbines, wherein said at least one compound having formula (I) corresponds to formula (I) in which R1, R2 and R3 are, independently, linear or branched saturated hydrocarbon groups comprising at least 16 carbon atoms, at least one group among R1, R2 and R3 comprises, on the hydrocarbon chain thereof, at least one ester group O—CO—R4, where R4 is a linear or branched alkyl radical comprising from 1 to 10 carbon atoms, preferably from 1 to 6 carbon atoms. The lubricant base has an acid number, in mg KOH / g measured according to the standard ISO 6618, which ranges from 0 to 0.5. The present invention further relates to a method for manufacturing the lubricant base as defined above and to the lubricant base thus obtained.

This invention discloses an apparatus and method for reactive extrusion saponification of lanolin, belonging to the field of lanolin processing technology. The method for reactive extrusion saponification of lanolin includes the following steps: adding lanolin, calcium oxide or calcium hydroxide, and a phase transfer catalyst into a reaction vessel, heating to 40°C, and stirring to mix evenly as raw material; conveying the raw material to a screw reactive extruder at a uniform feeding speed; extruding the saponified material through a cylindrical die to a homogenizer, adding a low-grade alcohol solvent for extraction, separating the liquid and solid phases, and obtaining a lanolin alcohol extract containing cholesterol and calcium lanate solid. This invention uses calcium oxide or calcium hydroxide with a small amount of phase transfer catalyst to enhance the continuous saponification of lanolin through a reactive extrusion process, omitting the calcium chloride conversion step, generating no saline wastewater, using no organic solvents, shortening the reaction time, and is clean and efficient, suitable for industrial production.

The invention provides a phospholipid composition and an edible oil anhydrous degumming method. The phospholipid composition is separated from cakes or residues obtained by squeezing oil materials to prepare oil, the mass of phospholipid accounts for 70-100% of the total mass of the phospholipid composition, and the mass of phosphatidylcholine accounts for 25% or below of the total mass of the phospholipid composition. According to the degumming method, the phospholipid composition is used for degumming. By using the degumming method disclosed by the invention, the phosphorus content in the edible oil can be reduced, and the flavor is not influenced.

Disclosed is a process of production of a composition comprising triglycerides, wherein the process comprises a step of esterification and to a fat composition produced by the process. The invention further relates to a structuring fat comprising the fat composition obtained by the process disclosed herein.

The utility model discloses a separation type reaction kettle for preparing castor oil derivatives, which relates to the technical field of chemical machinery and comprises a kettle body, the top of the kettle body is communicated with a rectification condensing device, the rectification condensing device comprises a rectifier, a heat exchanger, a condenser and a buffer tank which are communicated in sequence, and the rectifier and the heat exchanger are vertically arranged. The bottom of the rectifier is communicated with the top of the kettle body, the heat exchanger is positioned above the rectifier, the condenser is obliquely arranged downwards, the buffer tank is arranged below the condenser, a vacuum system interface is formed in the top of the buffer tank, and a recycled material discharge port is formed in the bottom of the buffer tank; a feeding hole is formed in the upper part of the kettle body; a temperature adjusting assembly and a stirring assembly are arranged in the kettle body; the bottom of the kettle body is of an inverted-cone-shaped structure used for standing layering, and a derivative discharging opening is formed in the bottom of the inverted-cone-shaped structure. According to the utility model, through physical separation of different areas of the kettle body, the traditional multi-equipment process is integrated into a single reaction kettle to be completed, so that the production goals of high efficiency, low consumption and environmental protection are realized.

A process involves sequentially treating a. plurality of lipid feedstocks comprising a set of lipid feedstocks each having a chiaride content of at least about 2 ppm with a metal oxide catalyst on an oxide support under first treating conditions to produce respective treated streams of the set of lipid feedstocks having a chloride content less than 1 ppm until a. given one of the respective treated streams has a chloride content greater than 1 ppm and the metal oxide catalyst is converted to a spent metal oxide catalyst, converting the spent metal oxide catalyst to a rejuvenated metal oxide catalyst, and treating one or more additional lipid feedstocks each having a chloride content of at least about 2 ppm with the rejuvenated metal oxide catalyst under second treating conditions to produce one or more respective treated streams each having a chloride content less than 1 ppm.

A frying oil with butter flavor, comprising a vegetable oil and hydrolyzed milk fat and optional anhydrous milk fat. Also disclosed is a method of preparing the frying oil and the use of the frying oil.

The invention discloses a tall oil acid production method based on synergy of chemical conversion and physical separation, and belongs to the technical field of oleochemical industry. The method creatively utilizes Diels-Alder reaction characteristics of abietic acid and maleic anhydride, and is realized by the following steps: firstly, carrying out vacuum dehydration and degassing pretreatment on crude tall oil; then adding metered maleic anhydride to perform selective conversion under the catalysis of Lewis acid according to the content requirement of the target product abietic acid; performing molecular distillation separation on the reaction product to obtain light fraction fatty acid and heavy fraction abietic acid maleic anhydride resin; and finally, freezing and squeezing to obtain a tall oil acid product with precisely controllable abietic acid content. The technical limitation of a traditional physical separation method is broken through, the added value of the byproduct resin is increased by 50% or above, energy consumption is reduced by 35%, and the method is particularly suitable for customized production of medicine-grade, food-grade and other high-added-value products.

The present invention relates to a method for producing a fatty alcohol composition, comprising the step of converting oil extracted from Macaubay palm having an oil yield of at least 6 t / ha / yr (tons / hectare / year) into a fatty alcohol composition. Furthermore, the present invention relates to a fatty alcohol composition obtained from the fruit of Macaubay palm having an oil yield of at least 6 t / ha / yr (tons / hectare / year) and its use in suitable applications.

A process for reducing and / or removing diglyceride content without substantial interesterification of triglycerides in an oil comprising steps of providing an oil or fat; and hydrolysis of mono- and diglycerides in said oil with water in the presence of a lipase having at least 80% sequence identity to SEQ ID NO: 1.

The application belongs to the technical field of isomer separation, and particularly relates to a metal oxide modified MgO-SiO2 solid alkali catalyst, a preparation method and application thereof. The metal oxide modified MgO-SiO2 solid alkali catalyst is prepared first, and under the catalyst, the secondary ester in dodecanol ester isomers reacts with acid or acyl chloride as much as possible, and the reaction of the hydroxyl on the primary ester is reduced as much as possible. After the dodecanol ester formed by the reaction is separated, the content of the primary ester in the dodecanol ester is naturally obviously improved. There are a large number of basic centers on the surface of the catalyst, the steric hindrance of the hydroxyl on the secondary ester is small, the secondary ester is more easily combined with the basic centers on the surface of the carrier and subjected to subsequent reaction, and the steric hindrance of the hydroxyl on the primary ester is large, so the primary ester is not easily adsorbed on the basic centers of the catalyst, thereby reducing the reaction probability of the primary ester.

A process is provided that utilizes high palmitic acid yields from starting oil to product to obtain high sn2 palmitic acid fat compositions. [Solution] The present invention relates to the production of triglycerides (XPX) with palmitic acid (P) in the central position, where a palmitic acid-rich vegetable fat composition is first produced using a transesterification process, and then the intermediate composition is further processed to produce triglycerides with a high percentage of palmitic acid in the central position.

A modified, monoglyceride-enriched black soldier fly (BSF) oil extract, compositions, and edible products such as feed and food supplemental products comprising same and uses thereof in treating or preventing inflammation and / or microbial infection and / or biofilm formation, and / or in reducing a mortality, increasing an average body weight and / or improving a feed conversion ratio in a population comprising a plurality of subjects, are provided. A composition comprising a monoglyceride-enriched oil and a plant oil or extract derived from a Lamiaceae plant and uses thereof are also provided. The subjects to treated include, for example, human being, pets, farm animals, fish and crustaceans.