CN104673491B - A kind of method decolourized using composite decoloring agent to acidification oil - Google Patents
A kind of method decolourized using composite decoloring agent to acidification oil Download PDFInfo
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- CN104673491B CN104673491B CN201510072544.3A CN201510072544A CN104673491B CN 104673491 B CN104673491 B CN 104673491B CN 201510072544 A CN201510072544 A CN 201510072544A CN 104673491 B CN104673491 B CN 104673491B
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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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- 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 present invention relates to a kind of method decolourized using composite decoloring agent to acidification oil, comprise the following steps：(1) acidification oil of no bleaching is heated to 70 80 DEG C, constant temperature；(2) sequentially added into the acidification oil under step (1) described isoperibol：25 volume % ammoniacal liquor, addition are 1% the 5% of acidifying oil volume；Iron powder, addition are 0.1% the 0.5% of acidifying weight of oil；Aluminium powder, addition are 0.1% the 0.3% of acidifying weight of oil；30 volume % hydrogen peroxide, addition are 10% the 30% of acidifying oil volume；Then, at 70 80 DEG C, stirring is decolourized 40 80 minutes；(3) acidification oil after decolouring is cooled to room temperature, obtains decolouring acidification oil finished product.Method provided by the present invention is simple to operate, and cost is cheap, and the acidification oil color processed using this method is changed into bright yellow from black, and color and luster and transparency are obtained for great improvement.Great improvement has been carried out to its exterior color while ensureing and being acidified oil quality, it is comprehensively utilized and provides good example.
Description
Technical field
The present invention relates to a kind of method decolourized to acidification oil, and in particular to one kind is using composite decoloring agent to acidifying
The method that oil is decolourized.
Background technology
Acidification oil refer to the byproduct that is produced to oil refining plant-soap stock carry out acidification obtained oil.Acid
The main component of carburetion is aliphatic acid, contains the Multiple components such as pigment and unacidified triglycerides.Wherein soap content is about
25-30%, neutral oil content 12-25%, total fatty acid content 40-50%, these materials have its special in agricultural production
Purposes, but because the processing of soap stock often uses industrial sulphuric acid, cause acidification oil acid number higher, color is in dark brown, is being produced
Using being above greatly limited.
Colourity is one of important performance of acidification oil, and the depth of its color directly affects the quality and outward appearance of acidification oil.
The known disclosed method decolourized to acidification oil includes：Add activated carbon or carclazyte etc., such discoloration method
Although there are certain decolorization, but decolorizing effect unobvious to acidification oil, and operating cost is expensive.
Therefore it provides a kind of cost is cheap, the method decolourized to acidification oil of positive effect just turns into the technology and led
It is badly in need of the technical barrier solved in domain.
The content of the invention
It is an object of the invention to provide a kind of cost is cheap, the method decolourized to acidification oil of positive effect.
The purpose of of the invention is foregoing invention reaches by the following technical programs：
A kind of method decolourized using composite decoloring agent to acidification oil, is comprised the following steps：
(1) acidification oil of no bleaching is heated to 70-80 DEG C, constant temperature；
(2) sequentially added into the acidification oil under step (1) described isoperibol：25 volume % ammoniacal liquor, addition are
It is acidified the 1%-5% of oil volume；Iron powder, addition are the 0.1%-0.5% of acidifying weight of oil；Aluminium powder, addition are acidification oil
The 0.1%-0.3% of weight；30 volume % hydrogen peroxide, addition are the 10%-30% of acidifying oil volume；Then, in 70-80
At DEG C, decolouring 40-80 minutes are stirred；
(3) acidification oil after decolouring is cooled to room temperature, obtains decolouring acidification oil finished product.
A kind of optimal technical scheme, it is characterised in that：25 volume % ammoniacal liquor and 30 body described in the step (2)
The feed postition of product % hydrogen peroxide takes dropwise addition mode.
The absorbance being acidified with spectrophotometric determination before and after oil decolorization, calculates percent of decolourization.
Spectrophotometry absorbance described above, it is 650-680nm that it, which determines wavelength range of choice,.
The present invention has advantages below：
(1) decoloration process is simple, and decolorising agent is cheap, meets demand of industrial production；
(2) composite decoloring agent is used, its decolorizing efficiency is high, and method safety is reliable；
(3) the acidification oil lighter color after decolourizing, transparency is good, and quality is high；
(4) AAS make it that acidification oil color measuring is more convenient, reliable.
The present invention provides theoretical foundation and actual application value using acidification oil as raw material for the decoloration process of acidification oil,
Development and resource synthetic development to acidification oil industry utilize significant.
Below by embodiment, the present invention will be further described, but is not meant to the scope of the present invention
Limitation.
Embodiment
Embodiment 1
A kind of method decolourized using composite decoloring agent to acidification oil, is comprised the following steps：
(1) the commercially available acidification oil of 50mL no bleachings is heated to 70-80 DEG C, constant temperature；
(2) 25 volume % ammoniacal liquor 1.5mL is added dropwise into the acidification oil under isoperibol, then add 0.1g iron powders and
0.05g aluminium powders, after stirring, 8mL30 volumes % hydrogen peroxide is added dropwise, at 70-80 DEG C, stirring is decolourized 70 minutes；
(3) acidification oil after decolouring is cooled to room temperature, the acidification oil finished product 1 after being decolourized.
The absorbance of acidification oil finished product 1, a length of 665nm of maximum absorption wave, its percent of decolourization obtained by spectrophotometric determination
Reach 85%.
Embodiment 2
A kind of method decolourized using composite decoloring agent to acidification oil, is comprised the following steps：
(1) acidification oil of 50mL no bleachings is heated to 70-80 DEG C, constant temperature；
(2) 5 volume % ammoniacal liquor 1mL is added dropwise into the acidification oil under isoperibol, then adds 0.05g iron powders and 0.1g
Aluminium powder, after stirring, 30 volume % hydrogen peroxide 15mL is added dropwise, at 70-80 DEG C, stirring is decolourized 80 minutes；
(3) acidification oil after decolouring is cooled to room temperature, the acidification oil finished product 2 after being decolourized.
The absorbance of acidification oil finished product 2, maximum wavelength 665nm, its percent of decolourization reach obtained by spectrophotometric determination
84%.
Embodiment 3
A kind of method decolourized using composite decoloring agent to acidification oil, is comprised the following steps：
(1) acidification oil of 50mL no bleachings is heated to 70-80 DEG C, constant temperature；
(2) 25 volume % ammoniacal liquor 2mL is added dropwise into the acidification oil under isoperibol, then add 0.15g iron powders and
0.15g aluminium powders, after stirring, 30 volume % hydrogen peroxide 10mL is added dropwise, at 70-80 DEG C, stirring is decolourized 40 minutes；
(3) acidification oil after decolouring is cooled to room temperature, the acidification oil finished product 3 after being decolourized.
Reach 82% with the absorbance of spectrophotometry acidification oil finished product 3, maximum wavelength 665nm, its percent of decolourization.
Method provided by the present invention is simple to operate, and cost is cheap, using the acidification oil color of this method processing by black
It is changed into bright yellow, color and luster and transparency are obtained for great improvement.To its exterior color while ensureing to be acidified oil quality
Great improvement has been carried out, it is comprehensively utilized and provides good example.
Claims (1)
1. a kind of method decolourized using composite decoloring agent to acidification oil, is comprised the following steps：
(1) acidification oil of no bleaching is heated to 70-80 DEG C, constant temperature；
(2) sequentially added into the acidification oil under step (1) described isoperibol：25 volume % ammoniacal liquor, addition are acidifying
The 1%-5% of oil volume；Iron powder, addition are the 0.1%-0.5% of acidifying weight of oil；Aluminium powder, addition are acidifying weight of oil
0.1%-0.3%；30 volume % hydrogen peroxide, addition are the 10%-30% of acidifying oil volume；Then, at 70-80 DEG C
Under, stir decolouring 40-80 minutes；
(3) acidification oil after decolouring is cooled to room temperature, obtains decolouring acidification oil finished product；
The feed postition of 25 volume % ammoniacal liquor and the 30 volume % hydrogen peroxide described in the step (2) takes dropwise addition
Mode.
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| 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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| 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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| CN104673491A CN104673491A (en) | 2015-06-03 |
| CN104673491B true CN104673491B (en) | 2018-03-13 |
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Family Cites Families (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 |
| US6376689B1 (en) * | 1999-09-02 | 2002-04-23 | 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 |
| CN102965200B (en) * | 2012-11-29 | 2014-08-13 | 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 |
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