CN102250683A - Alkali refining process of cottonseed oil - Google Patents
Alkali refining process of cottonseed oil Download PDFInfo
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- CN102250683A CN102250683A CN2011101610097A CN201110161009A CN102250683A CN 102250683 A CN102250683 A CN 102250683A CN 2011101610097 A CN2011101610097 A CN 2011101610097A CN 201110161009 A CN201110161009 A CN 201110161009A CN 102250683 A CN102250683 A CN 102250683A
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Abstract
The invention belongs to the field of grain and oil processing and in particular relates to an alkali refining process of cottonseed oil. The process provided by the invention comprises the following steps of: (1) reducing temperature: rapidly cooling cottonseed crude oil to 20-40 DEG C; (2) removing impurities: filtering to remove impurities; (3) degumming: raising the temperature of the impurity-removed cottonseed crude oil to 60-65 DEG C; adding phosphoric acid, mixing and rapidly agitating for 0.5-1 hour; (4) carrying out alkali refining: adding alkaline liquid and uniformly mixing; then adding a sodium chloride solution, mixing, agitating and reacting for 40-60 minutes; (5) separating oil and soap: raising the temperature to 85 DEG C and then centrifuging and separating to remove nigre; (6) washing with water: adding soft water which has the temperature of 90 DEG C and is 10 wt% of the cottonseed crude oil into the oil; mixing, separating and removing wastewater to obtain the finished-product oil. The process provided by the invention has the advantages of simple process, convenience in operating and capability of increasing the refining rate of the cottonseed oil.
Description
Technical field
The invention belongs to the alkali-refining process of grain and oil manufacture field, particularly Oleum Gossypii semen.
Background technology
At present, cotton is one of China's main economic crops, output occupies first place in the world, cottonseed is the seed of cotton, whole seed oil-containing 10-15%, oil-containing 20-30% in the cotton benevolence is one of the world's nine big oil plants, along with the fast development of Chinese oil consumption and feedstuff industry, the demand of cottonseed deep processed product Oleum Gossypii semen also increases thereupon in recent years.Oleum Gossypii semen is a kind of fine edible vegetable oil, and it contains the lipid acid of a large amount of needed by human, has good shortening property again simultaneously, is described as the natural shortening that does not contain trans fatty acid.Under the situation that the hydrogenated vegetable oil that contains trans fatty acid is at present used by the restriction of states such as America and Europe, Oleum Gossypii semen becomes natural substitute in a plurality of countries.
The Oleum Gossypii semen refinery practice also has miscella refining technology except traditional chemical bases sweetening process.But it must be airtight, explosion-proof that miscella refining requires all devices, and needs soap stock is carried out precipitation.The producer that this technology is used at home is also few, and most of producer still adopts traditional alkali-refining process.Yet traditional alkali-refining process exists the some shortcomings part again, as reacting with adding suitable alkali lye again behind oily temperature rise to 80～85 ℃ to, because temperature of reaction is too high, if react for a long time, can cause a large amount of neutral oil saponification; And the reaction of short period of time, then the soap of Sheng Chenging does not have time enough absorption gossypol, and gossypol can not be removed fully, causes the Oleum Gossypii semen color to be difficult to remove.
Summary of the invention
In order to overcome the shortcoming of prior art, the invention provides a kind of alkali-refining process of Oleum Gossypii semen, its technology is simple, easy to operate, can improve the Oleum Gossypii semen refining yield.
The present invention solves the technical scheme that its technical problem takes: may further comprise the steps: (1), cooling: crude cotton seed oil is cooled to 20-40 ℃ rapidly; (2), impurity elimination: remove mechanical impuritys such as material embryo powder, cake slag, dregs of rice bits, silt by filtration method; (3), come unstuck: the crude cotton seed oil of impurity elimination is warming up to 60-65 ℃, adds the food grade phosphoric acid of crude cotton seed oil 0.05-0.2% weight ratio, mix, stir fast 0.5-1h; (4), alkali refining: add the alkali lye of crude cotton seed oil 1-10% weight ratio, mix, add the sodium chloride solution of crude cotton seed oil 1%-10% weight ratio again, 70 ℃-75 ℃ of the temperature of sodium chloride solution, concentration is 5%-10%, mixes, and stirs reaction 40-60min; (5), oily soap separates: centrifugation after alkali refining oil is warming up to 85 ℃, removal soap stock; (6), wash: the temperature that adds crude cotton seed oil 10% weight ratio in oil is 90 ℃ a soft water, mixes, and separates, and removes waste water, gets processed oil.
Described (3) step food grade concentration of phosphoric acid is 85%.
The concentration of described (4) step alkali lye is the 20-22 degree Beaume.
The present invention also comprises (7) step vacuum-drying: oil is warming up to 125 ℃ of-135 ℃ of vacuum-dryings, further removes moisture.
Technology of the present invention is simple, easy to operate, can improve the Oleum Gossypii semen refining yield.
Embodiment
Example 1
Crude cotton seed oil 50kg, through filtering and impurity removing, behind the phosphoric acid degumming, down in the alkali refining jar, carry out the low temperature alkali refining at 60 ℃ with alkali lye, before alkali refining oil advances whizzer, the adding hot salt brine, brine temp is 80 ℃, add-on is 0.5kg, and alkali refining oil obtains processed oil 36.615kg, refining yield 73.23% after separating, wash through whizzer.
Example 2
Crude cotton seed oil 50kg, through filtering and impurity removing, behind the phosphoric acid degumming, down in the alkali refining jar, carry out the low temperature alkali refining at 62 ℃ with alkali lye, before alkali refining oil advances whizzer, the adding hot salt brine, brine temp is 80 ℃, add-on is 1.5kg, and alkali refining oil obtains processed oil 38.905kg, refining yield 77.81% after separating, wash through whizzer.
Example 3
Crude cotton seed oil 50kg, through filtering and impurity removing, behind the phosphoric acid degumming, down in the alkali refining jar, carry out the low temperature alkali refining at 65 ℃ with alkali lye, before alkali refining oil advances whizzer, the adding hot salt brine, brine temp is 80 ℃, add-on is 2.5kg, and alkali refining oil obtains processed oil 38.67kg, refining yield 77.34% after separating, wash through whizzer.
Example 4
Crude cotton seed oil 50kg, through filtering and impurity removing, behind the phosphoric acid degumming, down in the alkali refining jar, carry out the low temperature alkali refining at 65 ℃ with alkali lye, before alkali refining oil advances whizzer, the adding hot salt brine, temperature is 80 ℃, add-on is 3.5kg, and alkali refining oil obtains processed oil 39.53kg, refining yield 79.06% after separating, wash through whizzer.
Example 5
Crude cotton seed oil 50kg, through filtering and impurity removing, behind the phosphoric acid degumming, in the alkali refining jar, carry out the low temperature alkali refining with alkali lye at low temperatures, before alkali refining oil advances whizzer, add hot salt brine, brine temp is 80 ℃, add-on is 5kg, and alkali refining oil obtains processed oil 37.595kg, refining yield 75.19% after separating, wash through whizzer.
Claims (4)
1. the alkali-refining process of an Oleum Gossypii semen is characterized in that: may further comprise the steps: (1), cooling: crude cotton seed oil is cooled to 20-40 ℃ rapidly; (2), impurity elimination: remove mechanical impuritys such as material embryo powder, cake slag, dregs of rice bits, silt by filtration method; (3), come unstuck: the crude cotton seed oil of impurity elimination is warming up to 60-65 ℃, adds the food grade phosphoric acid of crude cotton seed oil 0.05%-0.2% weight ratio, mix, stir fast 0.5-1h; (4), alkali refining: add the alkali lye of crude cotton seed oil 1%-10% weight ratio, mix, add the sodium chloride solution of crude cotton seed oil 1%-10% weight ratio again, 70 ℃-75 ℃ of the temperature of sodium chloride solution, concentration is 5%-10%, mixes, and stirs reaction 40-60min; (5), oily soap separates: centrifugation after alkali refining oil is warming up to 85 ℃, removal soap stock; (6), wash: the temperature that adds crude cotton seed oil 10% weight ratio in oil is 90 ℃ a soft water, mixes, and separates, and removes waste water, gets processed oil.
2. the alkali-refining process of Oleum Gossypii semen according to claim 1 is characterized in that: described (3) step food grade concentration of phosphoric acid is 85%.
3. the alkali-refining process of Oleum Gossypii semen according to claim 1 is characterized in that: the concentration of described (4) step alkali lye is the 20-22 degree Beaume.
4. the alkali-refining process of Oleum Gossypii semen according to claim 1 is characterized in that: also comprise (7) step, vacuum-drying: oil is warming up to 125 ℃ of-135 ℃ of vacuum-dryings, further removes moisture.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110161009 CN102250683B (en) | 2011-06-15 | 2011-06-15 | Alkali refining process of cottonseed oil |
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| CN 201110161009 CN102250683B (en) | 2011-06-15 | 2011-06-15 | Alkali refining process of cottonseed oil |
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| CN102250683A true CN102250683A (en) | 2011-11-23 |
| CN102250683B CN102250683B (en) | 2013-03-20 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766532A (en) * | 2012-08-10 | 2012-11-07 | 威县元亨油脂有限公司 | Alkali refining washing process for cottonseed oil |
| CN103409234A (en) * | 2013-08-21 | 2013-11-27 | 南通海辰蛋白科技有限公司 | Process for extracting cottonseed salad oil |
| CN103436352A (en) * | 2013-08-21 | 2013-12-11 | 南通海辰蛋白科技有限公司 | Extraction technology for cottonseed oil |
| CN105062668A (en) * | 2015-08-20 | 2015-11-18 | 成都市新津迎先粮油有限公司 | Rapeseed oil washing method |
| CN105154220A (en) * | 2015-07-31 | 2015-12-16 | 崇州市白头甘泉工业油脂厂 | Degumming alkali-refining method for grease |
| CN107641556A (en) * | 2017-09-28 | 2018-01-30 | 山东巧妻食品科技有限公司 | A kind of cottonseed oil continuous alkali-refining deacidification method |
| CN114540114A (en) * | 2020-11-26 | 2022-05-27 | 新疆奎屯天康植物蛋白有限公司 | Method for removing soap from cotton oil |
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| CN1065482A (en) * | 1991-03-30 | 1992-10-21 | 山东省粮油科学研究所 | From cotton oil distillation residues, extract the method for neutral oil |
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| CN101705147A (en) * | 2009-11-19 | 2010-05-12 | 中国农业科学院油料作物研究所 | Lipin deacidifying method |
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| CN1065482A (en) * | 1991-03-30 | 1992-10-21 | 山东省粮油科学研究所 | From cotton oil distillation residues, extract the method for neutral oil |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102766532A (en) * | 2012-08-10 | 2012-11-07 | 威县元亨油脂有限公司 | Alkali refining washing process for cottonseed oil |
| CN103409234A (en) * | 2013-08-21 | 2013-11-27 | 南通海辰蛋白科技有限公司 | Process for extracting cottonseed salad oil |
| CN103436352A (en) * | 2013-08-21 | 2013-12-11 | 南通海辰蛋白科技有限公司 | Extraction technology for cottonseed oil |
| CN105154220A (en) * | 2015-07-31 | 2015-12-16 | 崇州市白头甘泉工业油脂厂 | Degumming alkali-refining method for grease |
| CN105062668A (en) * | 2015-08-20 | 2015-11-18 | 成都市新津迎先粮油有限公司 | Rapeseed oil washing method |
| CN107641556A (en) * | 2017-09-28 | 2018-01-30 | 山东巧妻食品科技有限公司 | A kind of cottonseed oil continuous alkali-refining deacidification method |
| CN114540114A (en) * | 2020-11-26 | 2022-05-27 | 新疆奎屯天康植物蛋白有限公司 | Method for removing soap from cotton oil |
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| Publication number | Publication date |
|---|---|
| CN102250683B (en) | 2013-03-20 |
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Effective date of registration: 20201229 Address after: 057250 No.16, modern Avenue, modern new industrial park, Quzhou County, Handan City, Hebei Province Patentee after: Handan Chenguang plant protein Co.,Ltd. Address before: 057250 Chenguang Road, Quzhou County, Handan City, Hebei Province Patentee before: Chenguang Biotech Group Co.,Ltd. |