CN106893635A - A kind of extracting method of cottonseed oil - Google Patents
A kind of extracting method of cottonseed oil Download PDFInfo
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- CN106893635A CN106893635A CN201710180152.8A CN201710180152A CN106893635A CN 106893635 A CN106893635 A CN 106893635A CN 201710180152 A CN201710180152 A CN 201710180152A CN 106893635 A CN106893635 A CN 106893635A
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- cottonseed oil
- extraction
- cottonseed
- extracting method
- precipitation
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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
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/02—Pretreatment
- C11B1/04—Pretreatment of vegetable raw material
-
- 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
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/10—Production of fats or fatty oils from raw materials by extracting
-
- 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
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/10—Production of fats or fatty oils from raw materials by extracting
- C11B1/104—Production of fats or fatty oils from raw materials by extracting using super critical gases or vapours
-
- 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
- C11B3/12—Refining fats or fatty oils by distillation
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Fats And Perfumes (AREA)
- Edible Oils And Fats (AREA)
Abstract
The present invention provides a kind of extracting method of cottonseed oil, comprises the following steps：A, say that cottonseed is put into vacuum drying chamber, be vacuum dried；B, dried cottonseed is crushed, being watered carries out leaching process；C, the solution after leaching is distilled in condition of high vacuum degree environment, precipitation；D, precipitation product is carried out supercritical carbon dioxide extracting, the extracting pressure of supercritical carbon dioxide is 50 55MPa, and extraction temperature is 40 45 DEG C；E, it is extracted twice, first time extraction product can be separated with centrifuge, take upper strata oil reservoir and can obtain finished product cottonseed oil directly as finished product cottonseed oil, second extraction product.Cottonseed oil extracting method process is simple of the invention, the cottonseed oil purity for extracting is high, undope other impurities, the quality and performance of grease are excellent, production cost is greatly reduced in manufacture craft, the proportion of goods damageds of the cottonseed oil in extraction process are reduced simultaneously, is adapted to large-scale industrial production.
Description
Technical field
The invention belongs to the extractive technique field of grease, and in particular to a kind of extracting method of cottonseed oil.
Background technology
Cotton is national most important industrial crops, and cottonseed is the principal by product of cotton.Cottonseed is the large oil plant of China
One of, China's cottonseed yield is 12,000,000 tons within 2007, cottonseed oil-containing 18% or so, if cottonseed is used for liquefaction, cotton oil yield
At 2,000,000 tons or so, and the yield of China's cottonseed oil was only at 720,000 tons in 2007.In the U.S., cottonseed oil is main edible oil
Fat, in soya-bean oil, the rank rear the 3rd of oil recovery, therefore, cottonseed oil has huge development space in China.
Cottonseed oil is commonly called as cotton oil, is the oil soaked with cottonseed system, it is divided into squeezing cottonseed oil, leaches cottonseed oil, transgenic cotton seed
Oil, cottonseed crude oil, finished product cottonseed oil are several.The more other oil of color are dark red, after refining can human consumption, must containing a large amount of human bodies
Need aliphatic acid, most preferably with animal tallow mixed edible.Can be used to cook edible, also can be used for industrial production and do raw material.China
Cottonseed processing be mainly distributed on Xinjiang.Some cotton growing areas in Shandong, Hebei, Shanxi and Henan, but these processing enterprises are general
Small all over process scale, technical merit falls behind, and comprehensive utilization technique promotes poor, therefore constrains the development of cottonseed processing technology.
Therefore the method for needing preferably to extract cottonseed oil.
The content of the invention
It is an object of the invention to provide a kind of extracting method of cottonseed oil, cottonseed oil extracting method technique letter of the invention
Single, the cottonseed oil purity for extracting is high, and undope other impurities, and the quality and performance of grease are excellent.
The invention provides following technical scheme：
A kind of extracting method of cottonseed oil, comprises the following steps：
A, say that cottonseed is put into vacuum drying chamber, be vacuum dried, vacuum is 30-60MPa, drying temperature is 60-80 DEG C,
Drying time is 15-25min；
B, dried cottonseed is crushed, being watered carries out leaching process, leaches 3-5 times；
C, the solution after leaching is distilled in condition of high vacuum degree environment, precipitation, condition of high vacuum degree is 0.1-0.5MPa, and the precipitation time is
15-25s, precipitation temperature is 70-80 DEG C；
D, precipitation product is carried out into supercritical carbon dioxide extracting, be extracted twice, the extraction of supercritical carbon dioxide is extracted for the first time
Pressure power is 20-30MPa, and extraction temperature is 40-45 DEG C, and extraction time is 1-2h, and supercritical carbon dioxide is extracted for the second time
Extracting pressure is 40-50MPa, and extraction temperature is 50-55 DEG C, and extraction time is 1-2h；
E, it is extracted twice, first time extraction product can be directly as finished product cottonseed oil, second extraction product centrifuge
Separate, take upper strata oil reservoir and can obtain finished product cottonseed oil.
Preferably, the step a drying times are 25 minutes, are conducive to drying fully, beneficial to the extraction of subsequent step.
Preferably, the step b cottonseeds were crushed to 200-250 mesh sieve, were conducive to extraction more fully, improved cottonseed oil
Extraction quantity.
Preferably, the step b is leached using deionized water, is conducive to the recovery in manufacturing process, the circulation profit of resource
With.
Preferably, the step c distillations mode uses molecular still, is conducive to distillation more fully, and low cost, operation
Simply.
Preferably, the step c condition of high vacuum degree is 0.5MPa, more stable, safety is operated under the pressure, and can improve
The efficiency of distillation.
Preferably, the step c precipitations temperature is 80 DEG C, is conducive to precipitation more abundant, and stock utilization is high.
Preferably, the centrifugation of the step e enters to separate rotating speed in 4000-5000rpm, is conducive to separating abundant, raising cotton
The extracted amount of seed oil, while also improving the purity of cottonseed oil.
The beneficial effects of the invention are as follows：Cottonseed oil extracting method process is simple of the invention, the cottonseed oil purity for extracting
Height, undope other impurities, and the quality and performance of grease are excellent, and production cost is greatly reduced in manufacture craft,
The proportion of goods damageds of the cottonseed oil in extraction process are reduced simultaneously, is adapted to large-scale industrial production, during the present invention is production process
There is no secondary pollution and discarded object to produce, recyclable with water in extraction process, environmental protection and energy saving, green production.
Specific embodiment
Embodiment 1
A kind of extracting method of cottonseed oil, comprises the following steps：
A, say that cottonseed is put into vacuum drying chamber, be vacuum dried, vacuum is 60MPa, and drying temperature is 60 DEG C, when drying
Between be 25min；
B, dried cottonseed is crushed, being watered carries out leaching process, leaches 5 times；
C, the solution after leaching is distilled in condition of high vacuum degree environment, precipitation, condition of high vacuum degree is 0.5MPa, and the precipitation time is 15s,
Precipitation temperature is 80 DEG C；
D, precipitation product is carried out into supercritical carbon dioxide extracting, be extracted twice, the extraction of supercritical carbon dioxide is extracted for the first time
Pressure power is 30MPa, and extraction temperature is 45 DEG C, and extraction time is 1h, second extracting pressure of extraction supercritical carbon dioxide
It is 40MPa, extraction temperature is 55 DEG C, and extraction time is 1h；
E, it is extracted twice, first time extraction product can be directly as finished product cottonseed oil, second extraction product centrifuge
Separate, take upper strata oil reservoir and can obtain finished product cottonseed oil.
Step a drying times are 25 minutes, are conducive to drying fully, beneficial to the extraction of subsequent step.
Step b cottonseeds were crushed to 250 mesh sieve, were conducive to extraction more fully, improved the extraction quantity of cottonseed oil.
Step b is leached using deionized water, be conducive to the recovery in manufacturing process, and resource is recycled.
Step c distillations mode uses molecular still, is conducive to distillation more fully, and low cost, simple to operate.
Step c condition of high vacuum degree is 0.5MPa, more stable, safety is operated under the pressure, and can improve the efficiency of distillation.
Step c precipitations temperature is 80 DEG C, is conducive to precipitation more abundant, and stock utilization is high.
The centrifugation of step e enters to separate rotating speed in 5000rpm, is conducive to separating abundant, the extracted amount of raising cottonseed oil, while
Also the purity of cottonseed oil is improved.
Embodiment 2
A kind of extracting method of cottonseed oil, comprises the following steps：
A, say that cottonseed is put into vacuum drying chamber, be vacuum dried, vacuum is 30MPa, and drying temperature is 80 DEG C, when drying
Between be 25min；
B, dried cottonseed is crushed, being watered carries out leaching process, leaches 3 times；
C, the solution after leaching is distilled in condition of high vacuum degree environment, precipitation, condition of high vacuum degree is 0.5MPa, and the precipitation time is 15s,
80 DEG C of precipitation temperature；
D, precipitation product is carried out into supercritical carbon dioxide extracting, be extracted twice, the extraction of supercritical carbon dioxide is extracted for the first time
Pressure power is 30MPa, and extraction temperature is 45 DEG C, and extraction time is 2h, second extracting pressure of extraction supercritical carbon dioxide
It is 50MPa, extraction temperature is 55 DEG C, and extraction time is 2h；
E, it is extracted twice, first time extraction product can be directly as finished product cottonseed oil, second extraction product centrifuge
Separate, take upper strata oil reservoir and can obtain finished product cottonseed oil.
Step a drying times are 25 minutes, are conducive to drying fully, beneficial to the extraction of subsequent step.
Step b cottonseeds were crushed to 250 mesh sieve, were conducive to extraction more fully, improved the extraction quantity of cottonseed oil.
Step b is leached using deionized water, be conducive to the recovery in manufacturing process, and resource is recycled.
Step c distillations mode uses molecular still, is conducive to distillation more fully, and low cost, simple to operate.
Step c condition of high vacuum degree is 0.5MPa, more stable, safety is operated under the pressure, and can improve the efficiency of distillation.
Step c precipitations temperature is 80 DEG C, is conducive to precipitation more abundant, and stock utilization is high.
The centrifugation of step e enters to separate rotating speed in 4000rpm, is conducive to separating abundant, the extracted amount of raising cottonseed oil, while
Also the purity of cottonseed oil is improved.
Embodiment 3
A kind of extracting method of cottonseed oil, comprises the following steps：
A, say that cottonseed is put into vacuum drying chamber, be vacuum dried, vacuum is 30MPa, and drying temperature is 60 DEG C, when drying
Between be 15min；
B, dried cottonseed is crushed, being watered carries out leaching process, leaches 4 times；
C, the solution after leaching is distilled in condition of high vacuum degree environment, precipitation, condition of high vacuum degree is 0.5MPa, and the precipitation time is 15s,
Precipitation temperature is 80 DEG C；
D, precipitation product is carried out into supercritical carbon dioxide extracting, be extracted twice, the extraction of supercritical carbon dioxide is extracted for the first time
Pressure power is 23MPa, and extraction temperature is 44 DEG C, and extraction time is 1h, second extracting pressure of extraction supercritical carbon dioxide
It is 45MPa, extraction temperature is 55 DEG C, and extraction time is 1h；
E, it is extracted twice, first time extraction product can be directly as finished product cottonseed oil, second extraction product centrifuge
Separate, take upper strata oil reservoir and can obtain finished product cottonseed oil.
Step a drying times are 25 minutes, are conducive to drying fully, beneficial to the extraction of subsequent step.
Step b cottonseeds were crushed to 220 mesh sieve, were conducive to extraction more fully, improved the extraction quantity of cottonseed oil.
Step b is leached using deionized water, be conducive to the recovery in manufacturing process, and resource is recycled.
Step c distillations mode uses molecular still, is conducive to distillation more fully, and low cost, simple to operate.
Step c condition of high vacuum degree is 0.5MPa, more stable, safety is operated under the pressure, and can improve the efficiency of distillation.
Step c precipitations temperature is 80 DEG C, is conducive to precipitation more abundant, and stock utilization is high.
The centrifugation of step e enters to separate rotating speed in 4500rpm, is conducive to separating abundant, the extracted amount of raising cottonseed oil, while
Also the purity of cottonseed oil is improved.
Embodiment 4
A kind of extracting method of cottonseed oil, comprises the following steps：
A, say that cottonseed is put into vacuum drying chamber, be vacuum dried, vacuum is 36MPa, and drying temperature is 60 DEG C, when drying
Between be 25min；
B, dried cottonseed is crushed, being watered carries out leaching process, leaches 5 times；
C, the solution after leaching is distilled in condition of high vacuum degree environment, precipitation, condition of high vacuum degree is 0.5MPa, and the precipitation time is 25s,
Precipitation temperature is 80 DEG C；
D, precipitation product is carried out into supercritical carbon dioxide extracting, be extracted twice, the extraction of supercritical carbon dioxide is extracted for the first time
Pressure power is 30MPa, and extraction temperature is 45 DEG C, and extraction time is 2h, second extracting pressure of extraction supercritical carbon dioxide
It is 50MPa, extraction temperature is 55 DEG C, and extraction time is 2h；
E, it is extracted twice, first time extraction product can be directly as finished product cottonseed oil, second extraction product centrifuge
Separate, take upper strata oil reservoir and can obtain finished product cottonseed oil.
Step a drying times are 25 minutes, are conducive to drying fully, beneficial to the extraction of subsequent step.
Step b cottonseeds were crushed to 250 mesh sieve, were conducive to extraction more fully, improved the extraction quantity of cottonseed oil.
Step b is leached using deionized water, be conducive to the recovery in manufacturing process, and resource is recycled.
Step c distillations mode uses molecular still, is conducive to distillation more fully, and low cost, simple to operate.
Step c condition of high vacuum degree is 0.5MPa, more stable, safety is operated under the pressure, and can improve the efficiency of distillation.
Step c precipitations temperature is 80 DEG C, is conducive to precipitation more abundant, and stock utilization is high.
The centrifugation of step e enters to separate rotating speed in 5000rpm, is conducive to separating abundant, the extracted amount of raising cottonseed oil, while
Also the purity of cottonseed oil is improved.
Embodiment 5
A kind of extracting method of cottonseed oil, comprises the following steps：
A, say that cottonseed is put into vacuum drying chamber, be vacuum dried, vacuum is 36MPa, and drying temperature is 68 DEG C, when drying
Between be 25min；
B, dried cottonseed is crushed, being watered carries out leaching process, leaches 3 times；
C, the solution after leaching is distilled in condition of high vacuum degree environment, precipitation, condition of high vacuum degree is 0.5MPa, and the precipitation time is 15s,
Precipitation temperature is 80 DEG C；
D, precipitation product is carried out into supercritical carbon dioxide extracting, be extracted twice, the extraction of supercritical carbon dioxide is extracted for the first time
Pressure power is 30MPa, and extraction temperature is 40 DEG C, and extraction time is 2h, second extracting pressure of extraction supercritical carbon dioxide
It is 40MPa, extraction temperature is 55 DEG C, and extraction time is 1h；
E, it is extracted twice, first time extraction product can be directly as finished product cottonseed oil, second extraction product centrifuge
Separate, take upper strata oil reservoir and can obtain finished product cottonseed oil.
Step a drying times are 25 minutes, are conducive to drying fully, beneficial to the extraction of subsequent step.
Step b cottonseeds were crushed to 200 mesh sieve, were conducive to extraction more fully, improved the extraction quantity of cottonseed oil.
Step b is leached using deionized water, be conducive to the recovery in manufacturing process, and resource is recycled.
Step c distillations mode uses molecular still, is conducive to distillation more fully, and low cost, simple to operate.
Step c condition of high vacuum degree is 0.5MPa, more stable, safety is operated under the pressure, and can improve the efficiency of distillation.
Step c precipitations temperature is 80 DEG C, is conducive to precipitation more abundant, and stock utilization is high.
The centrifugation for stating step e enters to separate rotating speed in 4000rpm, is conducive to separating abundant, the extracted amount of raising cottonseed oil, together
When also improve the purity of cottonseed oil.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, although with reference to foregoing reality
Apply example to be described in detail the present invention, for a person skilled in the art, it still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent to which part technical characteristic.It is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (8)
1. a kind of extracting method of cottonseed oil, it is characterised in that comprise the following steps：
A, say that cottonseed is put into vacuum drying chamber, be vacuum dried, vacuum is 30-60MPa, drying temperature is 60-80 DEG C,
Drying time is 15-25min；
B, dried cottonseed is crushed, being watered carries out leaching process, leaches 3-5 times；
C, the solution after leaching is distilled in condition of high vacuum degree environment, precipitation, condition of high vacuum degree is 0.1-0.5MPa, and the precipitation time is
15-25s, precipitation temperature is 70-80 DEG C；
D, precipitation product is carried out into supercritical carbon dioxide extracting, be extracted twice, the extraction of supercritical carbon dioxide is extracted for the first time
Pressure power is 20-30MPa, and extraction temperature is 40-45 DEG C, and extraction time is 1-2h, and supercritical carbon dioxide is extracted for the second time
Extracting pressure is 40-50MPa, and extraction temperature is 50-55 DEG C, and extraction time is 1-2h；
E, it is extracted twice, first time extraction product can be directly as finished product cottonseed oil, second extraction product centrifuge
Separate, take upper strata oil reservoir and can obtain finished product cottonseed oil.
2. the extracting method of a kind of cottonseed oil according to claim 1, it is characterised in that the step a drying times are
25 minutes.
3. the extracting method of a kind of cottonseed oil according to claim 1, it is characterised in that the step b cottonseeds are crushed to
Cross 200-250 mesh sieve.
4. the extracting method of a kind of cottonseed oil according to claim 1, it is characterised in that the step b uses deionization
Water logging goes out.
5. the extracting method of a kind of cottonseed oil according to claim 1, it is characterised in that the step c distillations mode is adopted
Use molecular still.
6. the extracting method of a kind of cottonseed oil according to claim 1, it is characterised in that the step c condition of high vacuum degree is
0.5MPa。
7. the extracting method of a kind of cottonseed oil according to claim 1, it is characterised in that the step c precipitation temperature is
80℃。
8. the extracting method of a kind of cottonseed oil according to claim 1, it is characterised in that the centrifugation of the step e is entered point
From rotating speed in 4000-5000rpm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710180152.8A CN106893635A (en) | 2017-03-24 | 2017-03-24 | A kind of extracting method of cottonseed oil |
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| CN201710180152.8A CN106893635A (en) | 2017-03-24 | 2017-03-24 | A kind of extracting method of cottonseed oil |
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| CN106893635A true CN106893635A (en) | 2017-06-27 |
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ID=59193309
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108998205A (en) * | 2018-07-30 | 2018-12-14 | 王忠良 | A kind of lacquer tree seed nuclei benevolence olein smelting method |
-
2017
- 2017-03-24 CN CN201710180152.8A patent/CN106893635A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108998205A (en) * | 2018-07-30 | 2018-12-14 | 王忠良 | A kind of lacquer tree seed nuclei benevolence olein smelting method |
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Application publication date: 20170627 |
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