CN104673491A - Method for decolorizing acid oil with compound decolorizing agent - Google Patents
Method for decolorizing acid oil with compound decolorizing agent Download PDFInfo
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- CN104673491A CN104673491A CN201510072544.3A CN201510072544A CN104673491A CN 104673491 A CN104673491 A CN 104673491A CN 201510072544 A CN201510072544 A CN 201510072544A CN 104673491 A CN104673491 A CN 104673491A
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- acid oil
- acidification oil
- oil
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- decolorizing
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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
- C11B3/02—Refining fats or fatty oils by chemical reaction
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- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Fats And Perfumes (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention relates to a method for decolorizing acid oil with a compound decolorizing agent. The method comprises the following steps: (1) heating acid oil which is not decolorized to 70-80DEG C, and keeping the temperature constant; (2) adding the following materials into the acid oil in sequence in a constant-temperature environment: 25vol% of ammonium hydroxide, iron powder, aluminum powder and 30vol% of hydrogen peroxide, wherein the addition amount of ammonium hydroxide is 1-5 percent of the weight of the acid oil, the addition amount of iron powder is 0.1-0.5 percent of the weight of the acid oil, addition amount of aluminum powder is 0.1-0.3 percent of the weight of the acid oil addition amount of hydrogen peroxide is 10-30 percent of the weight of the acid oil; then performing stirring and decolorizing for 40-80min at 70-80DEG C; and (3) cooling the decolorized acid oil to room temperature to obtain finished decolorized acid oil. The method provided by the invention is simple to operate and low in cost, and the acid oil processed by the method changes from black into bright yellow and is greatly improved in luster and transparency. According to the method, the external color of the acid oil is greatly improved while the quality of the acid oil is guaranteed so as to provide a good example for comprehensive utilization of the acid oil.
Description
Technical field
The present invention relates to a kind of method that acidification oil is decoloured, be specifically related to a kind of method adopting composite decoloring agent to decolour to acidification oil.
Background technology
Acidification oil refer to byproduct-soap stock that oil refining plant is produced carry out acidification the oil obtained.Acidifying main body of oil is lipid acid, containing the Multiple components such as pigment and unacidified triglyceride level.Wherein soap content is about 25-30%, neutral oil content is 12-25%, total fatty acid content 40-50%, these materials have its special purpose in agriculture production, but because the process of soap stock often uses industrial sulphuric acid, cause acidification oil acid number higher, color is chocolate, and production application is greatly limited.
Colourity is one of key property of acidification oil, and the depth of its color directly affects quality and the outward appearance of acidification oil.
Disclosed in known, the method that acidification oil decolours is comprised: add gac or carclazyte etc., although this type of decoloring method has certain decolorization to acidification oil, decolorizing effect is not obvious, and process cost is expensive.
Therefore, provide a kind of with low cost, the method for decolouring to acidification oil of successful just becomes the technical barrier that this technical field is badly in need of solving.
Summary of the invention
The object of this invention is to provide a kind of with low cost, the method that acidification oil is decoloured of successful.
Of the present invention be foregoing invention object is reach by the following technical programs:
The method adopting composite decoloring agent to decolour to acidification oil, comprises the following steps:
(1) acidification oil of no bleaching is heated to 70-80 DEG C, constant temperature;
(2) add successively in the acidification oil under step (1) described isoperibol: the ammoniacal liquor of 25 volume %, add-on is the 1%-5% of acidification oil volume; Iron powder, add-on is the 0.1%-0.5% of acidification oil weight; Aluminium powder, add-on is the 0.1%-0.3% of acidification oil weight; The hydrogen peroxide of 30 volume %, add-on is the 10%-30% of acidification oil volume; Then, at 70-80 DEG C, stir decolouring 40-80 minute;
(3) acidification oil after decolouring is cooled to room temperature, must decolour acidification oil finished product.
A kind of optimal technical scheme, is characterized in that: the feed postition of the ammoniacal liquor of 25 volume % described in described step (2) and the hydrogen peroxide of described 30 volume % all takes dropping mode.
By the absorbancy before and after the decolouring of spectrophotometric determination acidification oil, calculate percent of decolourization.
Spectrophotometry absorbancy described above, it measures wavelength chooses scope is 650-680nm.
The present invention has the following advantages:
(1) decoloration process is simple, and discoloring agent is cheap, meets demand of industrial production;
(2) adopt composite decoloring agent, its decolorizing efficiency is high, and method safety is reliable;
(3) the acidification oil lighter color after decolouring, transparency is good, and quality is high;
(4) spectrophotometry makes acidification oil color measuring more convenient, reliable.
The present invention take acidification oil as raw material, and the decoloration process for acidification oil provides theoretical foundation and actual application value, utilizes significant to the development of acidification oil industry and resource synthetic development.
Below by embodiment, the present invention will be further described, but and do not mean that limiting the scope of the invention.
Embodiment
Embodiment 1
The method adopting composite decoloring agent to decolour to acidification oil, comprises the following steps:
(1) the commercially available acidification oil of 50mL no bleaching is heated to 70-80 DEG C, constant temperature;
(2) drip the ammoniacal liquor 1.5mL of 25 volume % in the acidification oil under isoperibol, then add 0.1g iron powder and 0.05g aluminium powder, after stirring, drip the hydrogen peroxide of 8mL30 volume %, at 70-80 DEG C, stir decolouring 70 minutes;
(3) acidification oil after decolouring is cooled to room temperature, obtains the acidification oil finished product 1 after decolouring.
By the absorbancy of spectrophotometric determination gained acidification oil finished product 1, maximum absorption wavelength is 665nm, and its percent of decolourization reaches 85%.
Embodiment 2
The method adopting composite decoloring agent to decolour to acidification oil, comprises the following steps:
(1) acidification oil of 50mL no bleaching is heated to 70-80 DEG C, constant temperature;
(2) drip the ammoniacal liquor 1mL of 5 volume % in the acidification oil under isoperibol, then add 0.05g iron powder and 0.1g aluminium powder, after stirring, drip the hydrogen peroxide 15mL of 30 volume %, at 70-80 DEG C, stir decolouring 80 minutes;
(3) acidification oil after decolouring is cooled to room temperature, obtains the acidification oil finished product 2 after decolouring.
By the absorbancy of spectrophotometric determination gained acidification oil finished product 2, maximum wavelength is 665nm, and its percent of decolourization reaches 84%.
Embodiment 3
The method adopting composite decoloring agent to decolour to acidification oil, comprises the following steps:
(1) acidification oil of 50mL no bleaching is heated to 70-80 DEG C, constant temperature;
(2) drip the ammoniacal liquor 2mL of 25 volume % in the acidification oil under isoperibol, then add 0.15g iron powder and 0.15g aluminium powder, after stirring, drip the hydrogen peroxide 10mL of 30 volume %, at 70-80 DEG C, stir decolouring 40 minutes;
(3) acidification oil after decolouring is cooled to room temperature, obtains the acidification oil finished product 3 after decolouring.
By the absorbancy of spectrophotometry acidification oil finished product 3, maximum wavelength is 665nm, and its percent of decolourization reaches 82%.
Method provided by the present invention is simple to operate, with low cost, and adopt the acidification oil color of the method processing to become bright yellow from black, color and luster and transparency are obtained for great improvement.While guarantee acidification oil quality, great improvement is carried out to its exterior color, good example has been provided to its comprehensive utilization.
Claims (2)
1. the method adopting composite decoloring agent to decolour to acidification oil, comprises the following steps:
(1) acidification oil of no bleaching is heated to 70-80 DEG C, constant temperature;
(2) add successively in the acidification oil under step (1) described isoperibol: the ammoniacal liquor of 25 volume %, add-on is the 1%-5% of acidification oil volume; Iron powder, add-on is the 0.1%-0.5% of acidification oil weight; Aluminium powder, add-on is the 0.1%-0.3% of acidification oil weight; The hydrogen peroxide of 30 volume %, add-on is the 10%-30% of acidification oil volume; Then, at 70-80 DEG C, stir decolouring 40-80 minute;
(3) acidification oil after decolouring is cooled to room temperature, must decolour acidification oil finished product.
2. the employing composite decoloring agent according to claim 1 method of decolouring to acidification oil, is characterized in that: the feed postition of the ammoniacal liquor of 25 volume % described in described step (2) and the hydrogen peroxide of described 30 volume % all takes dropping mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510072544.3A CN104673491B (en) | 2015-02-11 | 2015-02-11 | A kind of method decolourized using composite decoloring agent to acidification oil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510072544.3A CN104673491B (en) | 2015-02-11 | 2015-02-11 | A kind of method decolourized using composite decoloring agent to acidification oil |
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| Publication Number | Publication Date |
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| CN104673491A true CN104673491A (en) | 2015-06-03 |
| CN104673491B CN104673491B (en) | 2018-03-13 |
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| CN201510072544.3A Active CN104673491B (en) | 2015-02-11 | 2015-02-11 | A kind of method decolourized using composite decoloring agent to acidification oil |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1118809A (en) * | 1994-04-11 | 1996-03-20 | 中国科学院大连化学物理研究所 | Cottonseed oil foot decolorant and its application |
| WO2001016084A1 (en) * | 1999-09-02 | 2001-03-08 | Cargill, Incorporated | Removal of gum and chlorophyll-type compounds from vegetable oils |
| CN102965200A (en) * | 2012-11-29 | 2013-03-13 | 青岛福瑞斯生物能源科技开发有限公司 | Method for preparing biodiesel from nigre |
| CN103571621A (en) * | 2012-07-31 | 2014-02-12 | 青岛嘉能节能环保技术有限公司 | Method for decoloring biodiesel prepared from gutter oil |
| CN103992883A (en) * | 2014-05-17 | 2014-08-20 | 浙江工商大学 | Method for preparing crude fish oil with fish oil nigre |
-
2015
- 2015-02-11 CN CN201510072544.3A patent/CN104673491B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1118809A (en) * | 1994-04-11 | 1996-03-20 | 中国科学院大连化学物理研究所 | Cottonseed oil foot decolorant and its application |
| WO2001016084A1 (en) * | 1999-09-02 | 2001-03-08 | Cargill, Incorporated | Removal of gum and chlorophyll-type compounds from vegetable oils |
| CN103571621A (en) * | 2012-07-31 | 2014-02-12 | 青岛嘉能节能环保技术有限公司 | Method for decoloring biodiesel prepared from gutter oil |
| CN102965200A (en) * | 2012-11-29 | 2013-03-13 | 青岛福瑞斯生物能源科技开发有限公司 | Method for preparing biodiesel from nigre |
| CN103992883A (en) * | 2014-05-17 | 2014-08-20 | 浙江工商大学 | Method for preparing crude fish oil with fish oil nigre |
Non-Patent Citations (3)
| Title |
|---|
| 崔淑兰，等: "铁屑—双氧水氧化法处理染料废水", 《环境保护》 * |
| 时云铭，等: "用油料皂脚制备肥皂", 《石家庄师范专科学校学报》 * |
| 林新: "山苍籽核仁油脱色试验", 《福建林业科技》 * |
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| CN104673491B (en) | 2018-03-13 |
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