CN105838504A - Method for producing feeding fatty acid by utilizing cotton seed oil dregs - Google Patents
Method for producing feeding fatty acid by utilizing cotton seed oil dregs Download PDFInfo
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- CN105838504A CN105838504A CN201610398108.XA CN201610398108A CN105838504A CN 105838504 A CN105838504 A CN 105838504A CN 201610398108 A CN201610398108 A CN 201610398108A CN 105838504 A CN105838504 A CN 105838504A
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- distillation residues
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Classifications
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B13/00—Recovery of fats, fatty oils or fatty acids from waste materials
- C11B13/02—Recovery of fats, fatty oils or fatty acids from waste materials from soap stock
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
Abstract
The invention belongs to the field of agricultural product processing, and specifically discloses a method for producing feeding fatty acid by utilizing cotton seed oil dregs. The method comprises the following steps: (1) sufficiently stirring the cotton seed oil dregs and pure water after mixing in proportion; (2) adding a proper amount of sulfuric acid with concentration being 98% into mixed liquor, and heating and hydrolyzing the mixed liquor; (3) transferring the mixed liquor into a liquor separating device to stand until completely layering, and separating an oil phase from a water phase after impurities in the oil phase are dissolved into the water phase; (4) transferring the obtained oil phase mixture into the liquor separating device to stand, adding hot water, standing until impurities in the oil phase are extracted into the water phase, separating the liquor, and repeatedly washing until the pH of the liquor is 5-6; (5) adding the obtained mixture into a proper amount of CuSO4 aqueous solution and an H2O2 aqueous solution to carry out detoxification; (6) adding the obtained mixture into a proper amount of active carclazyte to decolor and remove impurities; (7) centrifuging and separating decolored fatty acid to obtain the fatty acid. The method realizes resource utilization of the feeding fatty acid prepared from the cotton seed oil dregs, has the advantages of being less in investment, less in resource utilization, less in discharge of three wastes, simple and convenient to operate, and the like, and is suitable for industrial production.
Description
Technical field
The invention belongs to agricultural byproducts processing technical field, specifically one utilizes cotton oil distillation residues to produce feeding aliphatic acid
Method.
Background technology
Accessory substance when cotton oil distillation residues is alkali refining in grease production, its composition mainly have moisture, soap (fatty acid sodium salt),
Neutral oil, waste oil material, organic impurities, ash content, glycerine and other impurity, wherein neutral oil and fatty acid sodium salt
Account for 35～50%.
Shi Chanmian big country of China, is also cottonseed processing state maximum in the world, and cottonseed yield accounts for Gross World Product
1/4.Only Xinjiang region, the cottonseed yield in year about 4,000,000 tons, the annual cotton oil distillation residues that produces i.e. has 40,000 tons, about
For for 1.7 times of deodorization distillate, wherein fatty acids reaches 30～40%, and resource is the abundantest, but major part at present
Cottonseed oil processing factory all cotton oil distillation residues as discarded object or is processed at a low price, thus cause the huge wasting of resources.
Trace it to its cause, firstly because in cotton oil distillation residues containing high-load, animal body is had the most supervirulent free state
Gossypol, due to cotton oil when alkali refining removing techniques and be left in them；Secondly because the gossypol contained by cotton oil distillation residues
Being difficult to directly removing, people's removing techniques technology for a long time is mainly for cotton oil and cotton dregs, and lacks of cotton oil
The research of soap stock removing techniques technology, this further results in and it is believed that the gossypol having no idea in removing cotton oil distillation residues.
Thus, people have defined the mistake in understanding to cotton oil distillation residues, i.e. think that the gossypol in cotton oil distillation residues cannot take off
Remove so that it is cannot function as the raw material of animal data.This prejudice causes people generally that cotton oil distillation residues is low as discarded object
Valency processes or only prepares the aliphatic acid of industrial chemicals with it, thus ignores cotton oil distillation residues as feed applications side
The research and development in face.
Along with the progress of Modern Animal Feeding science, feeding standard develops to energetic increasingly.Mixed feed only adds
Appropriate grease, could meet the various livestock and poultry needs to metabolizable energy nutrient density.Develop new cheap fat products pair
The development of animal husbandry has profound significance.It is related to add the feed nutrition index contrast of feeding aliphatic acid and the big oil of pig
Test shows, the increasing mass velocity indifference of the two, the feedstuff-meat ratio of feeding aliphatic acid be less than the big oil of pig, and fat,
Total energy is basically identical with in the measured value of moisture, and the most feeding aliphatic acid is as higher fatty acid product, and complete alternative pig is big
Oil is in feed.
Feeding aliphatic acid is free fatty containing main component, and remaining is mainly the class ester thing such as neutral oil and a small amount of phosphatide.
Studies have reported that the reliability confirming its nutritive value, the feed grade aliphatic acid containing different content free fatty,
Growth of animals or poultry and efficiency of feed utilization can be improved, and regardless of the content height of free fatty, feeding effect is essentially identical.
The aliphatic acid prepared with cotton oil distillation residues is properly added by Feed Manufacturing as grease, it is possible to achieve feeding grease
Most of function, as high heat energy ingredient origin and the important sources of livestock and poultry essential fatty acid, there is the extra gain of heat
Effect and there is special heat effect etc..
Summary, how utilizing cotton oil distillation residues to prepare feed aliphatic acid as the glyceride stock of Feed Manufacturing is one
The individual technical problem having very much realistic meaning and economic worth, the research around this problem should cause that people's is the heaviest
Depending on.
Summary of the invention
It is an object of the invention to how to break through Traditional Thinking, utilize cotton oil distillation residues to prepare feed aliphatic acid, thus real
Now waste the recycling of cotton oil distillation residues.
Inventor combines prior art, breaks through intrinsic understanding and prejudice, it is proposed that utilize cotton oil distillation residues to prepare feed fat
The technology path of fat acid, is the most first converted into the aliphatic acid containing free state gossypol by acidifying water solution by cotton oil distillation residues, then
By the chemical detoxication method of gossypol, the free state gossypol in gained aliphatic acid is converted into harmless Chelating state gossypol, then will
The aliphatic acid of detoxification carries out decolouring, removal of impurities processes, obtain after being finally performing centrifugal separation on nontoxic, can be used for feedstuff
Feeding aliphatic acid, thus achieve cotton oil distillation residues first and prepare the recycling of feeding aliphatic acid.
The acidifying water solution that the present invention uses, will be converted into fat by the fatty acid sodium salt in soap stock under the effect of sulfuric acid
Acid；Then neutral oil therein is hydrolyzed by heating in acid condition and is obtained aliphatic acid and glycerine.Sulphur
The acid composition soluble in water such as sodium and glycerine also can separate in water-washing process.It is achieved thereby that by cotton oil distillation residues
The purpose that extracts of aliphatic acid.This technique has small investment, chemical resource use is less, three industrial wastes discharge is few
Several big advantage with easy and simple to handle, is suitable for industrialized production.
The present invention is directed to aliphatic acid prepared by cotton oil distillation residues uses chemical detoxication method to make free state gossypol contained by it be converted into
Harmless Chelating state gossypol, so that gossypol content is less than the numerical value of regulation in GB.
The present invention is directed to the aliphatic acid after detoxification prepared by cotton oil distillation residues uses adsorbent such as atlapulgite etc. to decolour,
Also can remove impurity so that it is meet the related request of feedstuff simultaneously.
The technical scheme is that a kind of method utilizing cotton oil distillation residues to prepare feeding aliphatic acid comprises the following steps:
(1) add water mixing: is mixed by the weight ratio of 1:0.5 to 1:2 with pure water by cotton oil distillation residues, stirring 10～
15 minutes；
(2) acidification hydrolization: will add the sulfuric acid of concentrations by weight >=98% in mixed liquor, addition is this mixed liquor weight
The 8%～12% of amount, heating is maintained at 75～95 DEG C, hydrolysis 1～2h；
(3) water-oil separating: mixed liquor proceeds to liquid distributing device and stands to being layered completely, treats that the impurity in oil phase dissolves
After aqueous phase, oil phase and aqueous phase are carried out separatory；
(4) ion: obtained oil mixture proceeds to liquid distributing device, adds temperature 60～the hot water of 80 DEG C,
Separatory after standing to the impurity extraction in oil phase to aqueous phase, the most repeated multiple times to pH5～6；
(5) detoxification treatment: gained mixture adds the aqueous solution of CuSO4, and addition is that CuSO4 solute accounts for this
The 0.5～2% of mixture weight；Add the H of concentrations by weight 30%2O2The aqueous solution, addition is this mixture weight
8～20%, reaction temperature 60～100 DEG C, O during reaction2Between 0.5～1.5h；
(6) decolouring removal of impurities: will add atlapulgite in the mixture after detoxification treatment, addition is this mixture weight
The 3～8% of amount, reaction temperature 70～100 DEG C, the reaction time 0.5～1.5h；
(7) centrifugation: be centrifuged separating by the aliphatic acid after decolouring, rotating speed 3000～5000 turns, the time
10～30 minutes, separate upper-layer fat acid.
By implementing the present invention, finally give the fatty acid product meeting feeding requirement, can be used as the raw material of feed manufacturing,
Achieve cotton oil distillation residues recycling in terms of feed.
When implementing technical scheme, cotton oil distillation residues is mixed with a certain proportion of pure water, when being stirred one section
Chien shih its mix；Then mixed liquor will add the sulfuric acid of a certain amount of concentrations by weight >=98%, be heated to certain
At a temperature of carry out acidification hydrolization reaction, strong acid and sodium soap reactant salt make aliphatic acid, destroy emulsification suspended substance simultaneously
System and colloidal dispersion, break original water and milk balance, proceeds to liquid distributing device and stand after reaction 1～2h, stands to mixed
Close liquid and be layered as oil phase and aqueous phase two-layer completely, treat that oil phase and aqueous phase, in aqueous phase, are carried out by impurity extraction in oil phase
Separatory separates；Obtained oil mixture proceeds to liquid distributing device stand, the oil phase temperature 60～80 that will be obtained
DEG C hot water washing, repeatedly wash repeatedly to pH5～6；Gained aliphatic acid is added CuSO4 solute and its weight ratio
Account for 0.5～the CuSO4 aqueous solution of 2% and account for the H of concentrations by weight 30% of 10～20% with its weight ratio2O2The aqueous solution,
Reaction temperature 60～100 DEG C, the reaction time 0.5～1.5h；Mixture after detoxification treatment will be added and its weight
Than accounting for 3～8% atlapulgite, reaction temperature 70～100 DEG C, reaction time 0.5～1.5h；Finally by after decolouring
Aliphatic acid is centrifuged separating, rotating speed 3000～5000 turns, time 10～30 minutes, separates upper-layer fat acid.
The acidifying water solution that this experiment is taked, concrete optimal processing parameter is: 100% deionized water dissolving soap stock, sulfuric acid
Addition 10%, bath temperature: 85 DEG C, reaction time: 1.5h.
The art those of ordinary skill is when implementing technical scheme, it is possible to according to ginseng of the present invention
Number scope determines concrete technology parameter as the case may be.
The optimization that present invention additionally comprises is or/and improve and have:
In the described step of one of preferred version (1), cotton oil distillation residues is carried out by the weight ratio of 1:1.4 to 1:1.6 with pure water
Mixing, further preferably, in described step (1), cotton oil distillation residues is mixed by the weight ratio of 1:1.5 with pure water,
Stir 12 minutes.
The two of preferred version, in described step (2), the addition of the sulfuric acid of concentrations by weight >=98% is mixed liquor weight
9.5～10.5%, heating be maintained at 80～90 DEG C, hydrolysis 1.5～1.7h, further preferably, described step (2)
The addition of the sulfuric acid of middle concentrations by weight >=98% is the 10% of mixed liquor weight, and heating is maintained at 85 DEG C, and hydrolysis is anti-
Answer 1.6h.
The three of preferred version, the temperature adding hot water in described step (4) is 65～75 DEG C, further preferably, institute
Stating the temperature of addition hot water in step (4) is 70 DEG C.
The four of preferred version, in described step (5), the addition of the CuSO4 aqueous solution is that CuSO4 solute accounts for this mixing
The 0.8～1.2% of thing weight；Described H2O2The addition of the aqueous solution is the 12～16% of this mixture weight, reaction temperature
85～95 DEG C, the reaction time 0.8～1.2h, further preferably, the addition of the CuSO4 aqueous solution in described step (5)
Amount accounts for the 1% of this mixture weight for CuSO4 solute；Described H2O2The addition of the aqueous solution is this mixture weight
15%, reaction temperature 90 DEG C, reaction time 1h.
The five of preferred version, in described step (6), the addition of atlapulgite is this mixture weight 4～6%, enters one
Preferably, in described step (6), the addition of atlapulgite is this mixture weight 5% to step.
The six of preferred version, described step (7) medium speed is 3800～4200 turns, time 20～30 minutes, further preferably,
Described step (7) medium speed is 4000 turns, 30 minutes time.
Implement technical solution of the present invention to provide the benefit that: the present invention breaches people and recognizes cotton oil distillation residues exploitation
Know mistaken ideas, achieve cotton oil distillation residues first and prepare the recycling of feeding aliphatic acid；Technical scheme also has
Have small investment, chemical resource use the discharge of less, three industrial wastes less with the advantage such as easy and simple to handle, be particularly suited for industry
Metaplasia is produced.
Detailed description of the invention
Technical scheme is described in detail below in conjunction with embodiment.
For making those skilled in the art be more fully understood that technical scheme, below in conjunction with embodiment, the present invention is made
Describe in detail further.
Embodiment 1: take appropriate cotton oil distillation residues, can obtain the fat meeting forage standard requirement according to following steps enforcement
Acid product:
(1) add water mixing: is mixed by the weight ratio of 1:1 with pure water by cotton oil distillation residues, stirs 15 minutes；
(2) acidification hydrolization: will add the sulfuric acid of concentrations by weight >=98% in mixed liquor, addition is this mixed liquor weight
The 10% of amount, heating is maintained at 85 DEG C, hydrolysis 1.5h；
(3) water-oil separating: mixed liquor proceeds to liquid distributing device and stands to being layered completely, treats that the impurity in oil phase dissolves
After aqueous phase, oil phase and aqueous phase are carried out separatory；
(4) ion: obtained oil mixture proceeds to liquid distributing device, adds the hot water of temperature 80 DEG C, quiet
The impurity extraction put to oil phase is to separatory after aqueous phase, the most repeated multiple times to pH5；
(5) detoxification treatment: gained mixture adds the aqueous solution of CuSO4, and addition is that CuSO4 solute accounts for this
The 0.5% of mixture weight；Add the H of concentrations by weight 30%2O2The aqueous solution, addition is this mixture weight
16%, reaction temperature 80 DEG C, reaction time 1h；
(6) decolouring removal of impurities: will add atlapulgite in the mixture after detoxification treatment, addition is this mixture weight
The 5% of amount, reaction temperature 90 DEG C, reaction time 0.5h；
(7) centrifugation: be centrifuged separating by the aliphatic acid after decolouring, rotating speed 4000 turns, 30 minutes time,
The acid of separation upper-layer fat, obtains meeting the feeding fatty acid product of Standard.
Embodiment 2: take appropriate cotton oil distillation residues, can obtain the fat meeting forage standard requirement according to following steps enforcement
Acid product:
(1) add water mixing: is mixed by the weight ratio of 1:2 with pure water by cotton oil distillation residues, stirs 10 minutes；
(2) acidification hydrolization: will add the sulfuric acid of concentrations by weight >=98% in mixed liquor, addition is this mixed liquor weight
The 8% of amount, heating is maintained at 95 DEG C, hydrolysis 1h；
(3) water-oil separating: mixed liquor proceeds to liquid distributing device and stands to being layered completely, treats that the impurity in oil phase dissolves
After aqueous phase, oil phase and aqueous phase are carried out separatory；
(4) ion: obtained oil mixture proceeds to liquid distributing device, adds the hot water of temperature 60 C, quiet
The impurity extraction put to oil phase is to separatory after aqueous phase, the most repeated multiple times to pH=6；
(5) detoxification treatment: gained mixture adds the aqueous solution of CuSO4, and addition is that CuSO4 solute accounts for this
The 1% of mixture weight；Add the H of concentrations by weight 30%2O2The aqueous solution, addition is the 8% of this mixture weight,
Reaction temperature 60 DEG C, reaction time 1.5h；
(6) decolouring removal of impurities: will add atlapulgite in the mixture after detoxification treatment, addition is this mixture weight
The 8% of amount, reaction temperature 70 DEG C, reaction time 1.5h；
(7) centrifugation: be centrifuged separating by the aliphatic acid after decolouring, rotating speed 5000 turns, 10 minutes time,
The acid of separation upper-layer fat, obtains meeting the feeding fatty acid product of Standard.
Embodiment 3: take appropriate cotton oil distillation residues, can obtain the fat meeting forage standard requirement according to following steps enforcement
Acid product:
(1) add water mixing: is mixed by the weight ratio of 1:0.5 with pure water by cotton oil distillation residues, stirs 15 minutes；
(2) acidification hydrolization: will add the sulfuric acid of concentrations by weight >=98% in mixed liquor, addition is this mixed liquor weight
The 12% of amount, heating is maintained at 75 DEG C, hydrolysis 2h；
(3) water-oil separating: mixed liquor proceeds to liquid distributing device and stands to being layered completely, treats that the impurity in oil phase dissolves
After aqueous phase, oil phase and aqueous phase are carried out separatory；
(4) ion: obtained oil mixture proceeds to liquid distributing device, adds the hot water of temperature 80 DEG C, quiet
The impurity extraction put to oil phase is to separatory after aqueous phase, the most repeated multiple times to pH5；
(5) detoxification treatment: gained mixture adds the aqueous solution of CuSO4, and addition is that CuSO4 solute accounts for this
The 2% of mixture weight；Add the H of concentrations by weight 30%2O2The aqueous solution, addition is the 20% of this mixture weight,
Reaction temperature 100 DEG C, reaction time 0.5h；
(6) decolouring removal of impurities: will add atlapulgite in the mixture after detoxification treatment, addition is this mixture weight
The 3% of amount, reaction temperature 100 DEG C, reaction time 0.5h；
(7) centrifugation: be centrifuged separating by the aliphatic acid after decolouring, rotating speed 4000 turns, 30 minutes time,
The acid of separation upper-layer fat, obtains meeting the feeding fatty acid product of Standard.
It is understood that the principle that is intended to be merely illustrative of the present of above example and the exemplary embodiment party that uses
Formula, but the invention is not limited in this, concrete reality can be determined according to technical scheme and actual conditions
Execute mode.For those skilled in the art, without departing from the spirit and substance in the present invention,
Can make various modification and improvement, these modification of increase and improvement are also considered as protection scope of the present invention.
Claims (8)
1. one kind utilizes the method that cotton oil distillation residues prepares feeding aliphatic acid, it is characterised in that comprise the following steps:
(1) add water mixing: is mixed by the weight ratio of 1:0.5 to 1:2 with pure water by cotton oil distillation residues, stirring 10～
15 minutes；
(2) acidification hydrolization: will add the sulfuric acid of concentrations by weight >=98% in mixed liquor, addition is this mixed liquor weight
The 8%～12% of amount, heating is maintained at 75～95 DEG C, hydrolysis 1～2h；
(3) water-oil separating: mixed liquor proceeds to liquid distributing device and stands to being layered completely, treats that the impurity in oil phase dissolves
After aqueous phase, oil phase and aqueous phase are carried out separatory；
(4) ion: obtained oil mixture proceeds to liquid distributing device, adds temperature 60～the hot water of 80 DEG C,
Separatory after standing to the impurity extraction in oil phase to aqueous phase, the most repeated multiple times to pH5～6；
(5) detoxification treatment: gained mixture is added CuSO4The aqueous solution, addition is CuSO4Solute accounts for this and mixes
The 0.5～2% of polymer weight；Add the H of concentrations by weight 30%2O2The aqueous solution, addition is this mixture weight
8～20%, reaction temperature 60～100 DEG C, the reaction time 0.5～1.5h；
(6) decolouring removal of impurities: will add atlapulgite in the mixture after detoxification treatment, addition is this mixture weight
The 3～8% of amount, reaction temperature 70～100 DEG C, the reaction time 0.5～1.5h；
(7) centrifugation: be centrifuged separating by the aliphatic acid after decolouring, rotating speed 3000～5000 turns, the time
10～30 minutes, separate upper-layer fat acid.
The method utilizing cotton oil distillation residues to prepare feeding aliphatic acid the most according to claim 1, it is characterised in that
In described step (1), cotton oil distillation residues is mixed by the weight ratio of 1:1.4 to 1:1.6 with pure water.
A kind of method utilizing cotton oil distillation residues to prepare feeding aliphatic acid the most according to claim 1, its feature exists
In, in described step (2) addition is mixed liquor weight the 9.5～10.5% of the sulfuric acid of concentrations by weight >=98%,
Heating is maintained at 80～90 DEG C, hydrolysis 1.5～1.7h.
The method utilizing cotton oil distillation residues to prepare feeding aliphatic acid the most according to claim 1, it is characterised in that
The temperature adding hot water in described step (4) is 65～75 DEG C.
The method utilizing cotton oil distillation residues to prepare feeding aliphatic acid the most according to claim 1, it is characterised in that
In described step (5), the addition of the CuSO4 aqueous solution is that CuSO4 solute accounts for the 0.8～1.2% of this mixture weight；
Described H2O2The addition of the aqueous solution is the 12～16% of this mixture weight, reaction temperature 85～95 DEG C, the reaction time
0.8～1.2h.
The method utilizing cotton oil distillation residues to prepare feeding aliphatic acid the most according to claim 1, it is characterised in that
In described step (6), the addition of atlapulgite is this mixture weight 4～6%.
The method utilizing cotton oil distillation residues to prepare feeding aliphatic acid the most according to claim 1, it is characterised in that
Described step (7) medium speed is 3800～4200 turns, time 20～30 minutes.
8. according to utilizing, described in any one of claim 1～7, the method that cotton oil distillation residues prepares feeding aliphatic acid, it is characterised in that
In described step (1), cotton oil distillation residues is mixed by the weight ratio of 1:1.5 with pure water, stirs 12 minutes；
In described step (2) addition is mixed liquor weight the 10% of the sulfuric acid of concentrations by weight >=98%, heating is protected
Hold at 85 DEG C, hydrolysis 1.6h；
The temperature adding hot water in described step (4) is 70 DEG C；
In described step (5), the addition of the CuSO4 aqueous solution is that CuSO4 solute accounts for the 1% of this mixture weight；
Described H2O2The addition of the aqueous solution is the 15% of this mixture weight, reaction temperature 90 DEG C, reaction time 1h；
In described step (6), the addition of atlapulgite is this mixture weight 5%；
Described step (7) medium speed is 4000 turns, 30 minutes time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610398108.XA CN105838504A (en) | 2016-06-07 | 2016-06-07 | Method for producing feeding fatty acid by utilizing cotton seed oil dregs |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610398108.XA CN105838504A (en) | 2016-06-07 | 2016-06-07 | Method for producing feeding fatty acid by utilizing cotton seed oil dregs |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107616345A (en) * | 2017-08-11 | 2018-01-23 | 郭英群 | A kind of method that feed addictive is produced using soap stock |
| CN108892610A (en) * | 2018-04-30 | 2018-11-27 | 石河子大学 | A kind of preparation method of feeding fatty acid calcium |
| CN114058445A (en) * | 2021-10-29 | 2022-02-18 | 广东电网有限责任公司广州供电局 | Vegetable insulating oil and purification method thereof |
| CN114350443A (en) * | 2021-02-05 | 2022-04-15 | 广西森洲生物技术有限公司 | Separation system and process for fatty acid and oil in grease byproduct |
-
2016
- 2016-06-07 CN CN201610398108.XA patent/CN105838504A/en active Pending
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| 李岩等: "菜籽油皂脚中脂肪酸分离提取工艺的研究", 《农产品加工·学刊》 * |
| 王薇薇等: "棉籽粕化学脱除棉酚的试验研究", 《动物营养学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107616345A (en) * | 2017-08-11 | 2018-01-23 | 郭英群 | A kind of method that feed addictive is produced using soap stock |
| CN108892610A (en) * | 2018-04-30 | 2018-11-27 | 石河子大学 | A kind of preparation method of feeding fatty acid calcium |
| CN114350443A (en) * | 2021-02-05 | 2022-04-15 | 广西森洲生物技术有限公司 | Separation system and process for fatty acid and oil in grease byproduct |
| CN114058445A (en) * | 2021-10-29 | 2022-02-18 | 广东电网有限责任公司广州供电局 | Vegetable insulating oil and purification method thereof |
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Application publication date: 20160810 |