CN101985579B - Method for decoloring fatty acid physically refined from rice bran oil - Google Patents
Method for decoloring fatty acid physically refined from rice bran oil Download PDFInfo
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- CN101985579B CN101985579B CN2010105426888A CN201010542688A CN101985579B CN 101985579 B CN101985579 B CN 101985579B CN 2010105426888 A CN2010105426888 A CN 2010105426888A CN 201010542688 A CN201010542688 A CN 201010542688A CN 101985579 B CN101985579 B CN 101985579B
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Abstract
The invention provides a method for decoloring fatty acid physically refined from rice bran oil. By a method for adding a proper amount of decoloring agent into a mixed fatty acid system and redistilling, the defect of incapability of removing pink color of the rice bran oil-mixed fatty acid of the conventional redistillation technology is overcome, and the rice bran oil-mixed fatty acid has a yellowish color. Therefore, the application range of the rice bran oil-mixed fatty acid is widened. The method comprises the following steps of: 1, adding the following components into the rice bran oil-mixed fatty acid in percentage by weight: 0.01 to 0.1 percent of sulfuric acid at the concentration of 98 percent, 0.01 to 0.1 percent of phosphoric acid at the concentration of 85 percent, 0.05 to 0.25 percent of activated carbon and 0.01 to 0.5 percent of lithium carbonate; and 2, distilling under vacuum.
Description
Technical field
The present invention relates to a kind of method of Rice pollard oil physical refining lipid acid decolouring.Belong to the oil chemistry industrial circle.
Background technology
Rice pollard oil physical refining lipid acid often has pink color and luster, and employing generally steaming means again is difficult to remove pink color and luster, so not only influences the range of application of lipid acid, and has reduced the commodity value of lipid acid.In order to obtain the Rice pollard oil physical refining lipid acid of yellowish color and luster, we have drafted many ways and meanses, through the research and experiment of long period, have invented a kind of method of Rice pollard oil physical refining lipid acid decolouring finally.This method has not only solved the shortcoming that existing multiple steaming technique can not remove the pink color and luster of Rice pollard oil mixed fatty acid, makes the Rice pollard oil mixed fatty acid become the state of yellowish color and luster, has widened the range of application of Rice pollard oil mixed fatty acid.And have low cost, and processing ease, the product yield is high, the characteristics of constant product quality.
Summary of the invention
The problem that the present invention will solve is the shortcoming that existing multiple steaming technique can not remove the pink color and luster of Rice pollard oil mixed fatty acid, and in order to solve the problems of the technologies described above, the present invention adopts following technical scheme, and this method may further comprise the steps:
1, in the Rice pollard oil mixed fatty acid, % by weight adds the sulfuric acid 0.01～0.1% of 98% concentration, adds the phosphoric acid 0.01～0.1% of 85% concentration, adds activated carbon 0.05～0.25%, adds Quilonum Retard 0.01～0.5%.
Generally be controlled at 0.01～0.1% 1.1 add the sulfuric acid of 98% concentration, preferentially be controlled at 0.01～0.05%, especially 0.01～0.03%;
Generally be controlled at 0.01～0.1% 1.2 add the phosphoric acid of 85% concentration, preferentially be controlled at 0.01～0.06%, especially 0.015～0.035%;
Generally be controlled at 0.05～0.25% 1.3 add activated carbon, preferentially be controlled at 0.08～0.22%, especially 0.12～0.2%;
Generally be controlled at 0.01～0.5% 1.4 add Quilonum Retard, preferentially be controlled at 0.01～0.2%, especially 0.15～0.025%.
2, vacuum state distillation down.
2.1 vacuum tightness generally is controlled at 1～500Pa, preferentially is controlled at 50～300Pa, especially 100～200Pa;
2.2 the still kettle temperature generally is controlled at 200～250 ℃, preferentially is controlled at 210～240 ℃, especially 220～230 ℃;
Generally be controlled at 250～280 ℃ 2.3 distill whole temperature, preferentially be controlled at 255～275 ℃, especially 260～270 ℃.
Embodiment
Instance one
In flask, add Rice pollard oil physical refining lipid acid 1000g, the sulfuric acid 0.15g of 98% concentration, the phosphoric acid 0.2g of 85% concentration, activated carbon 1g, Quilonum Retard 0.2g, the glass pearl of boiling is an amount of.Load onto liquid thermometer and gas phase temperature meter, connect condensing surface and 2X type vacuum pump, open electrothermal heater, 2 ℃/min of control temperature rise rate; The open vacuum pump keeps vacuum residual voltage 100Pa, when 195 ℃ of liquidus temperatures, during 190 ℃ of gas phase temperatures; Beginning has overhead product, and a large amount of overhead products distillate for 200～230 ℃ in liquid phase, and a small amount of overhead product distillates for 230～270 ℃ in liquid phase; Collecting whole overhead products is 970g, obtains the lipid acid of yellowish color and luster, and pink color and luster originally is removed.
Instance two
In flask, add Rice pollard oil physical refining lipid acid 1000g, the sulfuric acid 0.2g of 98% concentration, the phosphoric acid 0.2g of 85% concentration, activated carbon 1.5g, Quilonum Retard 0.2g, the glass pearl of boiling is an amount of.Load onto liquid thermometer and gas phase temperature meter, connect condensing surface and 2X type vacuum pump, open electrothermal heater, 2 ℃/min of control temperature rise rate; The open vacuum pump keeps vacuum residual voltage 100Pa, when 195 ℃ of liquidus temperatures, during 190 ℃ of gas phase temperatures; Beginning has overhead product, and a large amount of overhead products distillate for 200～230 ℃ in liquid phase, and a small amount of overhead product distillates for 230～270 ℃ in liquid phase; Collecting whole overhead products is 973g, obtains the lipid acid of yellowish color and luster, and pink color and luster originally is removed.
Instance three
In flask, add Rice pollard oil physical refining lipid acid 1000g, the sulfuric acid 0.25g of 98% concentration, the phosphoric acid 0.2g of 85% concentration, activated carbon 2g, Quilonum Retard 0.2g, the glass pearl of boiling is an amount of.Load onto liquid thermometer and gas phase temperature meter, connect condensing surface and 2X type vacuum pump, open electrothermal heater, 2 ℃/min of control temperature rise rate; The open vacuum pump keeps vacuum residual voltage 100Pa, when 195 ℃ of liquidus temperatures, during 190 ℃ of gas phase temperatures; Beginning has overhead product, and a large amount of overhead products distillate for 200～230 ℃ in liquid phase, and a small amount of overhead product distillates for 230～270 ℃ in liquid phase; Collecting whole overhead products is 967g, obtains the lipid acid of yellowish color and luster, and pink color and luster originally is removed.
Instance four
In flask, add Rice pollard oil physical refining lipid acid 1000g, the sulfuric acid 0.2g of 98% concentration, the phosphoric acid 0.15g of 85% concentration, activated carbon 2g, Quilonum Retard 0.15g, the glass pearl of boiling is an amount of.Load onto liquid thermometer and gas phase temperature meter, connect condensing surface and 2X type vacuum pump, open electrothermal heater, 2 ℃/min of control temperature rise rate; The open vacuum pump keeps vacuum residual voltage 100Pa, when 195 ℃ of liquidus temperatures, during 190 ℃ of gas phase temperatures; Beginning has overhead product, and a large amount of overhead products distillate for 200～230 ℃ in liquid phase, and a small amount of overhead product distillates for 230～270 ℃ in liquid phase; Collecting whole overhead products is 965g, obtains the lipid acid of yellowish color and luster, and pink color and luster originally is removed.
Instance five
In flask, add Rice pollard oil physical refining lipid acid 1000g, the sulfuric acid 0.2g of 98% concentration, the phosphoric acid 0.2g of 85% concentration, activated carbon 2g, Quilonum Retard 0.2g, the glass pearl of boiling is an amount of.Load onto liquid thermometer and gas phase temperature meter, connect condensing surface and 2X type vacuum pump, open electrothermal heater, 2 ℃/min of control temperature rise rate; The open vacuum pump keeps vacuum residual voltage 100Pa, when 195 ℃ of liquidus temperatures, during 190 ℃ of gas phase temperatures; Beginning has overhead product, and a large amount of overhead products distillate for 200～230 ℃ in liquid phase, and a small amount of overhead product distillates for 230～270 ℃ in liquid phase; Collecting whole overhead products is 975g, obtains the lipid acid of yellowish color and luster, and pink color and luster originally is removed.
Claims (6)
1. the method for Rice pollard oil physical refining lipid acid decolouring, this method comprises the steps:
(1) in the Rice pollard oil mixed fatty acid, by weight percentage, add the sulfuric acid 0.01～0.1% of 98% concentration, add the phosphoric acid 0.01～0.1% of 85% concentration, add activated carbon 0.05～0.25%, add Quilonum Retard 0.01～0.5%;
(2) vacuum state distillation down.
2. the method for a kind of Rice pollard oil physical refining lipid acid decolouring according to claim 1 is characterized in that: in the step 1, by weight percentage,
The sulfuric acid that adds 98% concentration is controlled at 0.01～0.05%;
The phosphoric acid that adds 85% concentration is controlled at 0.01～0.06%;
Add activated carbon and be controlled at 0.08～0.22%;
Add Quilonum Retard and be controlled at 0.01～0.2%.
3. the method for a kind of Rice pollard oil physical refining lipid acid decolouring according to claim 1 is characterized in that: in the step 1, by weight percentage,
The sulfuric acid that adds 98% concentration is controlled at 0.01～0.03%;
The phosphoric acid that adds 85% concentration is controlled at 0.015～0.035%;
Add activated carbon and be controlled at 0.12～0.2%;
Add Quilonum Retard and be controlled at 0.15～0.025%.
4. the method for a kind of Rice pollard oil physical refining lipid acid decolouring according to claim 1 is characterized in that: in the step 2,
Vacuum degree control is at 1～500Pa;
The still kettle temperature is controlled at 200～250 ℃;
Distill whole temperature control at 250～280 ℃.
5. the method for a kind of Rice pollard oil physical refining lipid acid decolouring according to claim 1 is characterized in that: in the step 2,
Vacuum degree control is at 50～300Pa;
The still kettle temperature is controlled at 210～240 ℃;
Distill whole temperature control at 255～275 ℃.
6. the method for a kind of Rice pollard oil physical refining lipid acid decolouring according to claim 1 is characterized in that: in the step 2,
Vacuum degree control is at 100～200Pa;
The still kettle temperature is controlled at 220～230 ℃;
Distill whole temperature control at 260～270 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105426888A CN101985579B (en) | 2010-11-15 | 2010-11-15 | Method for decoloring fatty acid physically refined from rice bran oil |
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| CN2010105426888A CN101985579B (en) | 2010-11-15 | 2010-11-15 | Method for decoloring fatty acid physically refined from rice bran oil |
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| CN101985579A CN101985579A (en) | 2011-03-16 |
| CN101985579B true CN101985579B (en) | 2012-06-27 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010078491A1 (en) * | 2008-12-31 | 2010-07-08 | Battelle Memorial Institute | Pre-esterification of primary polyols to improve solubility in solvents used in polyol process |
| CN101781605A (en) * | 2010-02-05 | 2010-07-21 | 万福生科(湖南)农业开发股份有限公司 | Refining method of rice bran oil |
| CN101805666A (en) * | 2010-04-02 | 2010-08-18 | 安徽省思润谷物油精炼有限公司 | Process for extracting high-grade rice bran oil by physical method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090005583A1 (en) * | 2007-06-29 | 2009-01-01 | Benecke Herman P | Preparation of Propylene Glycol Fatty Acid Ester or Other Glycol or Polyol Fatty Acid Esters |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010078491A1 (en) * | 2008-12-31 | 2010-07-08 | Battelle Memorial Institute | Pre-esterification of primary polyols to improve solubility in solvents used in polyol process |
| CN101781605A (en) * | 2010-02-05 | 2010-07-21 | 万福生科(湖南)农业开发股份有限公司 | Refining method of rice bran oil |
| CN101805666A (en) * | 2010-04-02 | 2010-08-18 | 安徽省思润谷物油精炼有限公司 | Process for extracting high-grade rice bran oil by physical method |
Non-Patent Citations (2)
| Title |
|---|
| 刘军海.米糠油精炼工艺研究新进展.《粮油加工》.2008,(第07期), * |
| 李文波等.米糠油精炼工艺及开发应用前景.《粮食科技与经济》.2009,(第05期), * |
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