CN1219040C - Method for producing decolorizer of edible oil - Google Patents
Method for producing decolorizer of edible oil Download PDFInfo
- Publication number
- CN1219040C CN1219040C CN 02152582 CN02152582A CN1219040C CN 1219040 C CN1219040 C CN 1219040C CN 02152582 CN02152582 CN 02152582 CN 02152582 A CN02152582 A CN 02152582A CN 1219040 C CN1219040 C CN 1219040C
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- filter cake
- edible oil
- discoloring agent
- water
- production method
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- Fats And Perfumes (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The present invention discloses a production method of an edible oil discoloring agent. The method is characterized in that hangmian 2 <#> soil is crushed and slightly boiled by adding hydrochloric acid. After filtration, a filter cake is obtained, filter liquor is collected, and the filter cake is washed with water to approach to neutrality; the well-washed filter cake is naturally aired and sent into a high temperature furnace for calcining. The filter cake is cooled and crushed into more than 250 meshes to obtain an edible oil discoloring agent. The production method can protect environment, and water can be circularly used without pollution. The produced edible oil discoloring agent has low cost, byproducts can be recovered, and the integral utilization of resources is realized.
Description
Technical field
The present invention relates to a kind of production method of edible oil discoloring agent, referring in particular to nonmetal clay pit is the method for raw material production edible oil discoloring agent.
Background technology
At present, domestic and international used edible vegetable oil refining discoloring agent is generally atlapulgite.And atlapulgite is to be raw material with natural potter's clay, is added various explained hereafter such as thermal bake-out again and forms.This class atlapulgite price is higher.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of production method of edible oil discoloring agent.
Technical problem of the present invention is solved by following scheme: the production method of edible oil discoloring agent, comprise with sour heat treated, calcination activation technological process, and it is characterized in that Hanggin 2
#Soil is ground into more than 20 orders, again with 1: the weight ratio of 0.7-0.8 and mixed in hydrochloric acid are little boiled 50-70 minute, the stirring that does not stop, absorb spent acid gas with ammoniacal liquor, get filter cake after filtration, collect filtrate, filter cake washes with water to nearly neutrality, send to behind the good filter cake nature airing of washing High Temperature Furnaces Heating Apparatus with 250-300 Celsius ℃ roasting 1.5-2.5 hour, be ground into through cooling again and promptly get the edible oil discoloring agent more than 250 orders, absorb first of the absorption liquid of spent acid gas and filtrate and washing leaching cake with above-mentioned with ammoniacal liquor, second wash water merges, and is neutralized to pH value 7.5-8.5 with ammonia precipitation process, filter Fe (OH)
3The filter cake precipitation washes precipitation again with water, and it with 100-110 ℃ of oven dry, is got iron oxide red with roasting below 500 ℃ again, and the filtrate evaporation concentration gets chemical fertilizer NH
4Cl, the steam cooling water-recovering.
Advantage of the present invention is: Hanggin 2
#Abundant, with low cost, the unique properties, of many uses of soil reserves.Its complete chemical analysis and X-ray diffraction quantitative analysis results such as table 1 and table 2.Table 1 Hanggin 2
#The complete chemical analysis result (Wt%) of soil
| Title content | SiO 2 47.67 | Al 2O 3 17.85 | Fe 2O 3 6.19 | FeO 0.62 | MgO 4.49 | CaO 6.07 | Na 2O 0.69 | K 2O 4.04 | TiO 2 0.62 |
| Title content | P 2O 5 0.17 | MnO 0.13 | CO 2 5.01 | H 3O + 6.79 | Organic C 0.04 | Summation 100.38 | T Fe2O36.88 |
Unit of analysis: Institute of Geophysical and Geochemical Exploration under China Academy of Geos
Table 2 Hanggin 2
#Soil X-ray diffraction quantitative analysis results (Wt%)
| Mineral name content | Attapulgite 28.1 | Illite 24.6 | Chlorite 12.1 | Quartzy 11.6 | Feldspar 10.3 | Calcite 12.9 |
Unit of analysis: national building materials industry Geological Engineering is reconnoitred research institute
The present invention is with Hanggin 2
#Soil is raw material production edible oil discoloring agent.Hanggin 2
#Soil has performances such as good absorption, decolouring, ion-exchange and thermostability.Handle the impurity that can remove in the original soil with hydrochloric acid soln, hydrogen ion replaces calcium, magnesium, potassium, the sodium plasma in the former soil structure, forms new surface.The filter cake calcination process is through dehydration, increases its specific surface area and surface adsorption performance to improve active decoloring ability.This production method is to belong to green, economic chemical production route, does not pollute.The byproduct of recyclable high added value, water can be recycled, and has realized the comprehensive utilization of resource.The edible oil discoloring agent cost of being produced is lower.Experiment shows that the product index performance is better than and sells other edible oil atlapulgite that decolours in the market.Table 3 is this edible oil discoloring agent complete chemical analysis result, and table 4 is this edible oil discoloring agent examination and test of products report.
Table 3 discoloring agent complete chemical analysis result (Wt%)
| Title Na 2O MgO Al 2O 3 SiO 2 K 2O CaO TiO 2 Fe 2O 3Content 0.525 2.045 15.84 74.65 3.918 0.092 0.902 1.942 |
| Unit of analysis: Dalian Chemiclophysics Inst., Chinese Academy of Sciences |
Table 4 examination and test of products report
| Sequence number NO | Interventions Requested Test Items | Test basis requires Standard Required | Assay Test Conclusion | Particular Conclusion is estimated in individual event |
| 1 | Transparency | Clarification, transparent | Meet the requirements | Qualified |
| 2 | Smell, flavour | Odorlessness, mouthfeel is good | Meet the requirements | Qualified |
| 3 | Color and luster (Lovibond cell 133.4mm) | ≤Y30 R3.0 | Y30 R2.1 | Qualified |
| 4 | Moisture and volatile matter content, % | ≤0.05 | 0.03 | Qualified |
| 5 | Impurity, % | ≤0.05 | 0.03 | Qualified |
| 6 | Acid value, mgKOHg | ≤0.20 | 0.12 | Qualified |
| 7 | Peroxide value, meq/kg | ≤10 | 8 | Qualified |
| 8 | AFB 1， μg/kg(ppb) | ≤5 | Do not detect | Qualified |
Description of drawings
Fig. 1 is technological process of production figure of the present invention.
Embodiment
As shown in Figure 1, with 1000 kilograms of Hanggins 2
#Soil is ground into 20 orders, mix little boiling 60 minutes with the solution soaking of 800 kilograms of hydrochloric acid again, the stirring that does not stop, absorb spent acid gas with ammoniacal liquor, get filter cake after filtration, collect filtrate, filter cake washes with water to nearly neutrality, it is Celsius with 300 ℃ of roastings 2 hours to send High Temperature Furnaces Heating Apparatus to behind the natural airing of the filter cake that washing is good, is ground into 250 orders through cooling again and promptly gets 700 kilograms of edible oil discoloring agents.Above-mentionedly absorb first and second time washing water merging of absorption liquid and filtrate and the washing leaching cake of spent acid gas, be neutralized to pH value 8 with ammonia precipitation process with ammoniacal liquor, filter Fe (OH)
3The filter cake precipitation washes precipitation again with water, and it with 105 ℃ of oven dry, is got 57 kilograms of iron oxide reds with 490 ℃ of roastings again, and the filtrate evaporation concentration gets chemical fertilizer NH
4The Cl260 kilogram, the steam cooling recycle-water.
Claims (1)
1, the production method of edible oil discoloring agent comprises with sour heat treated, calcination activation technological process, it is characterized in that Hanggin 2
#Soil is ground into more than 20 orders, again with 1: the weight ratio of 0.7-0.8 and mixed in hydrochloric acid are little boiled 50-70 minute, the stirring that does not stop, absorb spent acid gas with ammoniacal liquor, get filter cake after filtration, collect filtrate, filter cake washes with water to nearly neutrality, send to behind the good filter cake nature airing of washing High Temperature Furnaces Heating Apparatus with 250-300 Celsius ℃ roasting 1.5-2.5 hour, be ground into through cooling again and promptly get the edible oil discoloring agent more than 250 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02152582 CN1219040C (en) | 2002-11-22 | 2002-11-22 | Method for producing decolorizer of edible oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02152582 CN1219040C (en) | 2002-11-22 | 2002-11-22 | Method for producing decolorizer of edible oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1502681A CN1502681A (en) | 2004-06-09 |
| CN1219040C true CN1219040C (en) | 2005-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02152582 Expired - Fee Related CN1219040C (en) | 2002-11-22 | 2002-11-22 | Method for producing decolorizer of edible oil |
Country Status (1)
| Country | Link |
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| CN (1) | CN1219040C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447093C (en) * | 2006-04-03 | 2008-12-31 | 四川大学 | Method for producing decoloring material of printing and dyeing waste water |
| CN105251440B (en) * | 2015-11-26 | 2017-10-31 | 天津金隆昌科技有限公司 | The preparation and application of a kind of refinery decolorization agent and cleaning for edible oil |
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2002
- 2002-11-22 CN CN 02152582 patent/CN1219040C/en not_active Expired - Fee Related
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| CN1502681A (en) | 2004-06-09 |
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