509results about "Fatty acids production/refining" patented technology

A reactor system includes a reactor that treats a lipid feedstock using a metal oxide catalyst to produce a treated stream comprising a bio-oil. The reactor system includes a catalyst zone in which the metal oxide catalyst reacts with the lipid feedstock to produce the treated stream. The reactor system operates in a reaction mode, during which the lipid feedstock flows in a downward direction through the metal oxide catalyst to produce the treated stream. Alternately, the reactor also operates in a regeneration mode, during which coke is burned from the metal oxide catalyst thereby regenerating the metal oxide catalyst. In one aspect, a regeneration mode pressure is less than a reaction mode pressure within the reactor to fluidize the catalyst.

The invention discloses industrial-grade mixed oil produced by utilizing kitchen waste oil and a preparation method of the industrial-grade mixed oil, and belongs to the technical field of recycling of the kitchen waste oil. The invention relates to industrial-grade mixed oil produced by using kitchen waste oil and a preparation method thereof, and the preparation method comprises the following steps: firstly collecting kitchen waste containing the waste oil, and storing the kitchen waste in a container through special equipment; carrying out screen solid-liquid separation, cleaning grease on the surface of the solid waste, and then carrying out precipitation separation; then carrying out centrifugal separation, chemical cleaning, water washing, acid treatment, dehydration, degumming and metal ion removal on the separated grease and oil-containing liquid; carrying out ultrasonic-assisted multistage ester exchange after enzymolysis optimization, carrying out membrane separation on glycerol and fatty acid methyl ester, and carrying out reduced pressure distillation to obtain a high-purity fraction; carrying out adsorption refining, plasma treatment and supercritical fluid extraction; finally, nano particles are added and blended with additives, efficient recycling of the kitchen waste oil is achieved, and then high-purity industrial-grade mixed oil is prepared.

The invention discloses a system and a method for producing biological aviation kerosene by using waste oil and belongs to the technical field of biological aviation kerosene preparation. The method comprises the following steps: (1) the waste grease and a magnetic catalyst loaded with ionic liquid are mixed and enter a suspended bed pre-hydrogenation reactor for reaction to obtain a pre-hydrogenation product, a carrier in the magnetic catalyst loaded with the ionic liquid is Fe3O4 magnetic particles coated with a silicon dioxide layer, and the ionic liquid is molybdenum-based ionic liquid; (2) separating the pre-hydrogenation product to obtain a primary hydrogenation product; (3) performing hydrogenation upgrading on the primary hydrogenation product to obtain an upgraded intermediate product; (4) separating the upgrading intermediate product to obtain a secondary hydrogenation upgrading product; and (5) carrying out hydroisomerization reaction on the secondary hydrogenation upgrading product to obtain the biological aviation kerosene. According to the method, the magnetic catalyst loaded with the ionic liquid is adopted to catalyze the waste grease, recycling can be achieved under the action of a magnetic field, the catalytic stability is high, and industrial stable production can be achieved without supplementing the catalyst.

The invention belongs to the field of light industry grease, and particularly relates to a preparation method and application of stable diglyceride oil. The method comprises the following steps: performing moderate glycerolysis on vegetable oil; crude diglyceride obtained through glycerolysis is firstly subjected to molecular distillation purification and then subjected to a fractionation modification process, and the diglyceride isomer composition is prepared by controlling the glycerolysis degree and the fractionation process. The oxidation stability of the hot-processing cooking oil is remarkably improved, and the production amount of risk factors is remarkably reduced.

A composition is described comprising a mixture of at least one cetylated fatty acid or a mixture of cetylated fatty acids and an antioxidant in reduced percentages by weight, and related methods for treatment of arthritis and of inflammatory joint and musculoskeletal pain. Furthermore a composition is described comprising a mixture of at least one cetylated fatty acid or a mixture of cetylated fatty acids and, optionally, an antioxidant, and related treatment methods for protecting the gastric mucosa and for regulating the blood glucose levels. Additionally, a method is described for preparing the at least one cetylated fatty acid or mixture of cetylated fatty acids and for preparing compositions comprising the cetylated fatty acids and the antioxidant.

The invention discloses a preparation method of shea butter fermented oil and the prepared fermented oil and application thereof, and belongs to the technical field of microbial fermention.The preparation method comprises the steps that shea butter is added into a fermentation culture medium, autoclaved sterilization and cooling are conducted, and then a shea butter fermentation culture medium is obtained; the preparation method comprises the following steps: activating rhodosporidium duobovatum to prepare a seed solution, inoculating the seed solution into a shea butter fermentation medium, and fermenting to obtain a shea butter fermented product; and sterilizing, layering, centrifuging, dehydrating and adsorbing the shea butter fermented product, and taking an oil phase, namely the shea butter fermented oil. Macromolecular triglyceride is decomposed into micromolecular or free fatty acid through the microbial lipase, the heavy greasy feeling of the shea butter is reduced, and meanwhile the anti-inflammatory activity of the obtained shea butter fermented oil can be improved through generated odd-carbon fatty acid and probiotics.

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.

The invention discloses an adjustable crystallizer for fatty acid preparation, and relates to the technical field of fatty acid preparation, the adjustable crystallizer comprises a crystallization kettle and a kettle cover, a stirring shaft is arranged on the kettle cover, a jacket layer is arranged on the outer side wall of the crystallization kettle, a guide rod is fixed in the crystallization kettle, a ball body and an attachment cylinder slide on the guide rod, and an attachment plate sleeves the outer surface of the ball body. Air pipes are arranged in the crystallization kettle, a heat exchange gas medium is introduced into the air pipes, and a port of each air pipe is located below the corresponding attachment plate, according to the adjustable crystallizer for fatty acid preparation, due to the arrangement of a bubble heat exchange mode, pipelines with too many shapes do not need to be arranged in mixed liquid, and therefore the problem of crystal attachment cannot be generated; and bubbles directly exist in the mixed liquid, so that no other isolation materials exist, heat exchange can be more efficient, and heat exchange loss generated by pipelines in the heat exchange process can be reduced.

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 present invention relates to an improved chromatographic separation process for the purification of polyunsaturated fatty acid (PUFA) products and their derivatives. In particular, the present invention relates to a particularly efficient chromatographic separation process that uses silica having specific physical properties as the adsorbent phase for the purification of PUFAs or their derivatives from a feed mixture.

The invention belongs to the technical field of shortening preparation, and particularly relates to shortening base oil with low calorie and high oxidation stability and a preparation method of the shortening base oil. According to the preparation method of the shortening base oil with low calorie and high oxidation stability, provided by the invention, the novel shortening base oil with high oxidation stability, zero trans form, low cholesterol and low calorie is produced by taking palm stearin, cyperus esculentus oil and medium-carbon-chain triacylglycerol oil as raw materials and taking immobilized lipase Lipozyme RMIM as a catalyst; the problems that existing shortening is poor in oxidation stability, high in cholesterol content, excessive in trans-fatty acid content and high in long-carbon-chain saturated fatty acid content can be solved, and the low-calorie high-nutrition high-quality shortening has extremely wide application prospects in the field of preparation of low-calorie high-nutrition high-quality shortening.

A composition is described comprising a mixture of at least one cetylated fatty acid or a mixture of cetylated fatty acids and an antioxidant in reduced percentages by weight, and related methods for treatment of arthritis and of inflammatory joint and musculoskeletal pain. Furthermore a composition is described comprising a mixture of at least one cetylated fatty acid or a mixture of cetylated fatty acids and, optionally, an antioxidant, and related treatment methods for protecting the gastric mucosa and for regulating the blood glucose levels. Additionally, a method is described for preparing the at least one cetylated fatty acid or mixture of cetylated fatty acids and for preparing compositions comprising the cetylated fatty acids and the antioxidant.

The invention relates to the technical field of natural product extraction, in particular to a process for separating and extracting nervonic acid from xanthoceras sorbifolia bunge. The preparation method comprises the following steps: extracting xanthoceras sorbifolia bunge kernels to prepare xanthoceras sorbifolia bunge oil; the xanthoceras sorbifolia bunge oil is filtered and refined through a composite polyethersulfone membrane, and mixed fatty acid is prepared; mixing fatty acids to prepare nervonic acid. Molybdenum disulfide and lithium fluoride treated by hydrochloric acid are jointly dispersed in a solution, and after a composite nano material prepared through treatment of molybdenum disulfide and lithium fluoride is used for treating a polyether sulfone membrane, the obtained composite polyether sulfone membrane does not generate pollution and has an adsorption effect on impurities in xanthoceras sorbifolia bunge oil; when the xanthoceras sorbifolia bunge oil is filtered by the polyether sulfone membrane, other impurities are adsorbed, the xanthoceras sorbifolia bunge oil is refined, the content of an extraction solvent and other impurities in the xanthoceras sorbifolia bunge oil is reduced, and the extraction rate and purity of nervonic acid extracted from the xanthoceras sorbifolia bunge oil are improved.

The invention provides a preparation method and application of high alpha-linolenic acid, and relates to the technical field of medicines. Comprising the following steps: selecting purple perilla seeds, cleaning, drying, mechanically grinding in a protective atmosphere, and filtering to obtain purple perilla seed crude oil; carrying out degumming, deacidification, decoloration and dewaxing treatment on the crude perilla seed oil in a protective atmosphere to obtain primarily enriched crude alpha-linolenic acid oil; and respectively carrying out supercritical CO2 extraction, enzymatic molecular distillation and preparative chromatographic separation on the preliminarily enriched perilla seed oil to obtain the high alpha-linolenic acid. According to the method, purple perilla seeds are subjected to multi-stage treatment, extraction and refinement are performed layer by layer through three steps of supercritical CO2 extraction, enzymatic molecular distillation and preparative chromatographic separation, free fatty acid in purple perilla seed crude oil can be effectively removed, and alpha-linolenic acid is enriched to obtain high alpha-linolenic acid with the purity higher than 96%. The method is suitable for mass production in the medicine field.

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 invention discloses a continuous separation and purification device and method for crude fatty acid, and relates to the technical field of fatty acid purification, the continuous separation and purification device comprises a mixed distillation mechanism and a mixing box mounted at the top of the mixed distillation mechanism, one side of the mixed distillation mechanism is provided with a condensation recovery mechanism, and the inner side of the top of the condensation recovery mechanism is provided with an atomizer; the mixed distillation mechanism comprises a distillation box, a distillation heater is fixedly mounted at the bottom of the distillation box, a plurality of supporting rings are fixedly mounted in the distillation box, supporting rods are fixedly mounted at the tops and the bottoms of the supporting rings, and a steam guide cover is fixedly mounted on the outer side, close to the supporting rings, of the distillation box; impurities are heated and distilled through the heating plate at the top of the guide conical block, the phenomenon that fatty acid is wasted due to the fact that fatty acid remains on the surfaces of the impurities is avoided, steam can be guided by arranging the steam guide cover and the guide groove, and the phenomenon that the steam flows back or remains is avoided.

Disclosed is a method of reducing and / or removing diglyceride content in an oil without substantial transesterification of triglycerides, the method comprising the steps of: providing an oil or fat; and hydrolyzing the monoglycerides and diglycerides in the oil with water in the presence of a lipase having at least 80% sequence identity to SEQ ID NO: 1.

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.

Provided is a method for efficiently producing the desired highly unsaturated fatty acid ester composition in high purity. Provided is a method for producing a highly unsaturated fatty acid ester composition from an oil / fat composition, the method comprising: the removal, by subjecting the oil / fat composition to a first column chromatography, of some or all of at least one component having a relative value for the peak top retention time of 1.8-3.5 in the first column chromatography when the peak top retention time of the desired substance is 1.0; and the removal, by subjecting an eluate comprising the desired substance obtained by the first column chromatography to a second column chromatography, of some or all of at least one component having a relative value for the peak top retention time of 0.90-1.1 in the second column chromatography when the peak top retention time of the desired substance is 1.0.

The present invention is related to a method for purifying crude α-sulfo fatty acid salt obtained by the reaction of fatty acid and sulfur oxides, comprising the following steps: a) diluting the crude α-sulfo fatty acid in a solvent and adjusting the ph from 2 to 4; b) heating up the slurry of a-sulfo fatty acid salt obtained in the step a) until being fully solubilized: c) cooling down the solution of α-sulfo fatty acid salt obtained in the step b) to room temperature gradually to obtain the crystals; d) filtering the crystal obtained in the step c) to remove the motherinsing the filter cake at least twice with acid aqueous solution to obtain the purified α-sulfo fatty acid salt.

To provide a method for producing a composition for feed containing high-content fatty acid calcium, in which the method has excellent versatility, can make workability efficient, and can improve a generation rate of fatty acid calcium.SOLUTION: A method for producing composition for feed containing fatty acid calcium has: an enzymolysis process (S1) in which triglyceride containing unsaturated fatty acid as constituent fatty acid and lipase are mixed under the presence of water to enzymatically decompose triglyceride; a salt generating process (S2) in which a decomposed product obtained in the enzymolysis process (S1) and calcium hydroxide are mixed to generate fatty acid calcium; a solid-liquid separation process (S3) in which a solid matter is separated from a processed product after the salt generating process (S2); and an antioxidation process (S4) in which the separated solid matter and antioxidative caramel are mixed.SELECTED DRAWING: Figure 1

The present invention relates to a novel process for removing chlorine-containing compounds and other impurities from fats and oils.

The present invention relates to the technical field of degassing towers, and proposes a rotary degassing tower for fatty acid production, comprising a tower body, wherein the upper part of the tower body is provided with a liquid inlet and an air outlet, the lower part of the tower body is provided with a liquid outlet, the upper part of the tower body is provided with a rotary liquid separation mechanism connected to the liquid inlet, the lower part of the rotary liquid separation mechanism is provided with a stirring and shearing mechanism, the lower part of the stirring and shearing mechanism is provided with a filler flow guide mechanism, and also includes a linkage air supply mechanism that drives the rotary liquid separation mechanism and the stirring and shearing mechanism to rotate in opposite directions. The beneficial effect is that the rotary liquid separation mechanism in the present invention can rotate under the drive of the linkage air supply mechanism to disperse the liquid entering the tower body, and the stirring and shearing mechanism at the lower part can further stir and shear the liquid, so that part of the carbon dioxide and other gases are separated from the liquid, and then enter the filler flow guide mechanism for further degassing, and at the same time, the rotary liquid separation mechanism rotates in the opposite direction to the stirring and shearing mechanism, further improving the effect of diversion and shearing, thereby improving the degassing effect.

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.