CN105567423A - Method for sectional decoloring of soybean oil - Google Patents
Method for sectional decoloring of soybean oil Download PDFInfo
- Publication number
- CN105567423A CN105567423A CN201610136884.2A CN201610136884A CN105567423A CN 105567423 A CN105567423 A CN 105567423A CN 201610136884 A CN201610136884 A CN 201610136884A CN 105567423 A CN105567423 A CN 105567423A
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- CN
- China
- Prior art keywords
- segmentation
- decolouring
- oil
- atlapulgite
- decoloring
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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
- C11B3/00—Refining fats or fatty oils
- C11B3/10—Refining fats or fatty oils by adsorption
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Fats And Perfumes (AREA)
Abstract
The invention provides a method for sectional decoloring of soybean oil. According to the method, multi-stage adsorption balance is established by sectional decoloring, so that the activity of newly added activated clay can be effectively developed, and the decoloring efficiency can be improved. The method comprises the following steps: firstly, putting weighed degummed and deacidified oil of soybean to a three-mouth flask, carrying out oil-bath heating to a certain temperature, vacuumizing to remove moisture, and maintaining such state; then calculating the total amount of the activated clay needing to be added, adding the activated clay to to-be-decolored oil in three times, and stirring and adsorbing for the same time after each addition; stopping heating, breaking the vacuum after the oil is cooled, and then centrifuging under 500r/min for a period of time, and filtering with filter paper to obtain the decolored oil. According to the method provided by the invention, the use amount of the activated clay for oil decoloring can be furthest reduced, the decoloring rate is improved, and the maximum decoloring rate is 92.97%; the loss of neutral grease caused by separating waste clay after decoloring is reduced, and the method has an important meaning in oil and fat refining.
Description
Technical field
The present invention relates to grease processing technique field, be specifically related to the efficiency utilization to atlapulgite in oil and fat refining process, reduce again decolouring while the economic benefit improving enterprise after, spent bleaching clay discharges the environmental pollution caused.
Background technology
Adsorption bleaching craft is the important step of oil and fat refining, the main purpose of grease-decolor technique removes the pigment in grease, but at grease through to come unstuck and after the refinery practice such as depickling, the material of oil quality and refining still can be unfavorable for containing some, such as a small amount of phosphatide, the soap class, micro-metals etc. that do not eliminate, some special grease is also containing objectionable impuritiess such as gossypols.The existence of these materials often affects the effect of decoloration process and reduces decolorizing efficiency, therefore, is necessary to be removed as soon as possible in decolorization.In removal grease, also can remove trace metal composition, neat soap, polycyclic aromatic hydrocarbons and benzopyrene etc. while pigment, certain impact is produced on the nutritive ingredient in grease simultaneously.
Relative to the common process only carrying out primary sorption equilibrium process, segmentation decoloration process can set up multiple adsorb balance, can counter-current operation process to the full extent on realization theory.Common process process is difficult to the absorption property giving full play to atlapulgite, causes atlapulgite large usage quantity.Need after completing decolorization be separated carclazyte, have amount of grease adsorb by this part spent bleaching clay, spent bleaching clay oil length is about 25% ~ 40%.Therefore the grease lost after the larger refining of atlapulgite usage quantity is more, and the increase of atlapulgite addition can make the acid number of grease improve.At present, the spent bleaching clay of most of grease factory has all been outwelled as fuel or rubbish, and this not only pollutes environment, and also result in a large amount of grease losses.
Relative to conventional decoloration process, segmentation decoloration process can add under the constant condition of sorbent material total amount, multiple adsorb equilibrium process is set up between sorbent material and pigment, give full play to the vigor newly adding sorbent material, new adsorption equilibrium is set up with residue pigment during previous balance, realizing being separated of carclazyte and grease finally by once filtering, therefore, the consumption of atlapulgite can be reduced when identical decolorizing effect.
In view of above situation, the invention provides a kind of novel method, the absorption property of atlapulgite can be made full use of, reduce the usage quantity of atlapulgite, the grease loss in less refining process, simple and effective realize grease-decolor process.
Summary of the invention
The object of the invention is to find a kind of can the method for efficiency utilization activated decoloration, while improving decolorizing efficiency, reduce the usage quantity of atlapulgite, a kind of method of soybean oil segmentation decolouring is realized by following steps: one, according to the interpolation total amount of oil quality determination atlapulgite.Two, three sections are divided to add in grease according to a certain percentage.Three, the control reaction times carries out desolventing technology to grease at a certain temperature.Four, centrifugation mixed solution once filters and removes the rear carclazyte of decolouring.
Utilize the method that soybean oil segmentation is decoloured, percent of decolourization can be improved greatly, reduce the usage quantity of atlapulgite, save the advantage such as production energy consumption, safety non-pollution, also can reduce production cost, improve industrial profit.Significant to oil and fat refining.
Embodiment
Embodiment one: realized by following steps by the method for a kind of soybean oil segmentation decolouring: one, take that a certain amount of soybean is come unstuck, depickling oil is in there-necked flask, carry out oil bath and be heated to about 80 DEG C, carry out vacuumizing process to remove moisture, and keep this state; Two, required total amount of adding atlapulgite is calculated, dividing to add to for three times treats in bleached oil, the total amount of adding atlapulgite is 0.6 ~ 1.8%, segmentation decolouring atlapulgite adding proportion is selected to be 40 ~ 60%:30 ~ 20%:30 ~ 20%, the temperature selecting segmentation decolouring is 80 ~ 120 DEG C, stirring velocity when selecting segmentation decolouring is 50 ~ 250r/min, selects segmentation decolouring total time to be 30 ~ 90min, the time that after adding, whip attachment is identical at every turn; Three, just oil cooling, to about 80 DEG C breaking vacuum, centrifugal for some time under 5000r/min afterwards, obtains bleached oil through filter paper filtering
Embodiment two: the difference of present embodiment and embodiment one is that the interpolation total amount of atlapulgite in step 2 is 0.9 ~ 1.5%.Other step is identical with embodiment one.
Embodiment three: the difference of present embodiment and embodiment one to be in step 2 that oversubscription section atlapulgite adding proportion of decolouring is 50%:25%:25%.Other step is identical with embodiment one.
Embodiment four: the difference of present embodiment and embodiment one is that in step 2, segmentation bleaching temperature is 90 ~ 110 DEG C.Other step is identical with embodiment one.
Embodiment five: the difference of present embodiment and embodiment one is that the rotating speed that in step 2, segmentation is decoloured is 100 ~ 200r/min, and other step is identical with embodiment one.
Embodiment six: the difference of present embodiment and embodiment one is that the total time that in step 2, segmentation is decoloured is 45 ~ 75min, and other step is identical with embodiment one.
Claims (6)
1. a method for soybean oil segmentation decolouring, is characterized in that control atlapulgite addition manner and decolorization condition decolour to soybean oil, reduces the consumption of atlapulgite while realizing soybean oil efficient decolorizing:
Step one: the soybean taking 100 ~ 150g is come unstuck, depickling oil is in 250mL there-necked flask, carry out after oil bath is heated to 60 ~ 70 DEG C, carry out vacuumizing process to remove moisture, and keep this state, calculate required total amount of adding atlapulgite, dividing to add to for three times treats in bleached oil, under certain stirring velocity condition, select the interpolation total amount of certain atlapulgite, control each ratio of adding and temperature during decolouring, the time that after each interpolation, whip attachment is identical, question response terminates rear stopping heating, by oil cooling to about 70 ~ 80 DEG C breaking vacuum, centrifugal for some time under 4000 ~ 5000r/min afterwards, bleached oil is obtained through filter paper filtering,
Step 2: select the atlapulgite total amount of adding to be 0.6 ~ 1.8%, course synchronization rapid, determines the interpolation total amount of atlapulgite;
Step 3: select segmentation decolouring atlapulgite adding proportion to be 40 ~ 60%:30 ~ 20%:30 ~ 20%, course synchronization rapid, determines the consumption of every section of atlapulgite;
Step 4: the temperature selecting segmentation decolouring is 80 ~ 120 DEG C, course synchronization rapid is temperature required when determining that segmentation is decoloured;
Step 5: stirring velocity when selecting segmentation decolouring is 50 ~ 250r/min, course synchronization rapid, determines the required rotating speed of segmentation decolouring;
Step 6: select segmentation decolouring total time to be 30 ~ 90min, course synchronization rapid, determines segmentation decolouring total time.
2. the method for a kind of soybean oil segmentation decolouring according to claim 1, to is characterized in that in step 2 by the interpolation total amount of atlapulgite being 0.9 ~ 1.5%.
3. the method for a kind of soybean oil segmentation decolouring according to claim 1, is characterized in that in step 3, segmentation decolouring atlapulgite adding proportion is 50%:25%:25%.
4. the method for a kind of soybean oil segmentation decolouring according to claim 1, is characterized in that in step 4, segmentation bleaching temperature is 90 ~ 110 DEG C.
5. the method for a kind of soybean oil segmentation decolouring according to claim 1, is characterized in that the rotating speed of segmentation decolouring in step 5 is 100 ~ 200r/min.
6. the method for a kind of soybean oil segmentation decolouring according to claim 1, is characterized in that the total time of segmentation decolouring in step 6 is 45 ~ 75min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610136884.2A CN105567423A (en) | 2016-03-10 | 2016-03-10 | Method for sectional decoloring of soybean oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610136884.2A CN105567423A (en) | 2016-03-10 | 2016-03-10 | Method for sectional decoloring of soybean oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105567423A true CN105567423A (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610136884.2A Pending CN105567423A (en) | 2016-03-10 | 2016-03-10 | Method for sectional decoloring of soybean oil |
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| CN (1) | CN105567423A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113388450A (en) * | 2021-06-16 | 2021-09-14 | 江苏旗云油脂科技有限公司 | Grease decoloring method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103087820A (en) * | 2012-07-11 | 2013-05-08 | 哈尔滨商业大学 | Process method for reducing color and luster of soybean oil by two-section type de-coloring |
-
2016
- 2016-03-10 CN CN201610136884.2A patent/CN105567423A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103087820A (en) * | 2012-07-11 | 2013-05-08 | 哈尔滨商业大学 | Process method for reducing color and luster of soybean oil by two-section type de-coloring |
Non-Patent Citations (1)
| Title |
|---|
| 魏贞伟: "油脂分段脱色工艺的研究", 《食品科学》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113388450A (en) * | 2021-06-16 | 2021-09-14 | 江苏旗云油脂科技有限公司 | Grease decoloring method |
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Application publication date: 20160511 |
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| RJ01 | Rejection of invention patent application after publication |