CN100374535C - Continuous filtering and refining method for edible oil - Google Patents
Continuous filtering and refining method for edible oil Download PDFInfo
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- CN100374535C CN100374535C CNB200510054605XA CN200510054605A CN100374535C CN 100374535 C CN100374535 C CN 100374535C CN B200510054605X A CNB200510054605X A CN B200510054605XA CN 200510054605 A CN200510054605 A CN 200510054605A CN 100374535 C CN100374535 C CN 100374535C
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000001914 filtration Methods 0.000 title claims abstract description 30
- 238000007670 refining Methods 0.000 title claims abstract description 27
- 239000008157 edible vegetable oil Substances 0.000 title claims abstract description 21
- 239000003921 oil Substances 0.000 claims abstract description 25
- 238000005238 degreasing Methods 0.000 claims abstract description 7
- 239000010779 crude oil Substances 0.000 claims description 43
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 238000004061 bleaching Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000000084 colloidal system Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000004042 decolorization Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 230000003311 flocculating effect Effects 0.000 claims description 3
- 238000009997 thermal pre-treatment Methods 0.000 claims description 3
- 238000004332 deodorization Methods 0.000 abstract description 7
- 239000004927 clay Substances 0.000 abstract description 3
- 239000002351 wastewater Substances 0.000 abstract description 3
- 238000003860 storage Methods 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 235000019198 oils Nutrition 0.000 description 23
- 238000005516 engineering process Methods 0.000 description 18
- 238000004519 manufacturing process Methods 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 239000002253 acid Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 235000013305 food Nutrition 0.000 description 3
- 235000021055 solid food Nutrition 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 229960004232 linoleic acid Drugs 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 229960001866 silicon dioxide Drugs 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000269319 Squalius cephalus Species 0.000 description 1
- 238000009874 alkali refining Methods 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000010495 camellia oil Substances 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Substances OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- NJDNXYGOVLYJHP-UHFFFAOYSA-L disodium;2-(3-oxido-6-oxoxanthen-9-yl)benzoate Chemical compound [Na+].[Na+].[O-]C(=O)C1=CC=CC=C1C1=C2C=CC(=O)C=C2OC2=CC([O-])=CC=C21 NJDNXYGOVLYJHP-UHFFFAOYSA-L 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010943 off-gassing Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000003813 safflower oil Substances 0.000 description 1
- 235000005713 safflower oil Nutrition 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000020238 sunflower seed Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Fats And Perfumes (AREA)
Abstract
The present invention relates to a method for continuously filtering and refining edible oil, which comprises the following processes of coarse degumming, dewaxing, degreasing, decolorizing, degumming, deacidification and deodorization. In the method, the dewaxing technique is preposed, so the use level of clay for decolorizing is reduced, and simultaneously, the oil absorption volume of the clay is reduced about 0.8%. The processes of the coarse degumming, the decolorizing, physical deacidification and the deodorization are combined, so the present invention has the advantages of simple flow path, convenient operation, no secondary pollution and waste water discharge, and the investment on a traditional centrifuge and a dewaxing cold storage is saved.
Description
Technical field:
The present invention relates to a kind of continuous filtering and refining method for edible oil, belong to the edible oil manufacture field.
Background technology:
Traditional refining raw food oil technical process is as follows:
(1) take off assorted crude oil preheating, in premixed device, add phosphoric acid and water post-heating, after whizzer is isolated the glue mixture, obtain degummed oil;
(2) degummed oil pump into the mixing tank that is added with alkali lye, the depickling oil that after heating and whizzer are isolated dense soap stock water, obtains to come unstuck, then pump into the mixing tank that is added with water, isolate rare soap stock water post-heating, dry depickling degummed oil after obtaining washing through whizzer;
(3) the depickling degummed oil pumps into the atlapulgite mixing tank and enters the bleaching tower vacuum decoloration under heating condition, filter to remove useless carclazyte then, obtains bleached oil;
(4) bleached oil pumps into deodorization tower vacuum deodorization through heating, and tentatively cooling (65 ℃) obtains deodorised oil then;
(5) deodorised oil further cooling (7 ℃) in freezer is filtered removal wax pin and fat pin through press filtering machine, obtains finished product.
There is following defective in above-mentioned technology:
(1) owing to add a large amount of aqueous solution, produces a large amount of waste water,, increase the working cost of investment and wastewater treatment so must increase wastewater treatment equipment;
(2) whizzer costs an arm and a leg, and domestic one 100 ton per day treatment capacity whizzer needs about 450,000 yuan of Renminbi, and the import whizzer needs to need three in the production line more than 850,000 yuan, and institute is so that integrated artistic production cost increases;
(3) complex process, operation easier are greatly, the technology power-equipment is many, consumption is high, causes the equipment failure rate height;
(4) cause derived product exploitation difficulty, for example; Linolic acid extracts difficulty, in the traditional technology with alkali lye with the linolic acid saponification in the oil product after with sewage discharge, cause and reclaim difficulty;
(5) use the method for chemical refining to produce, this production technique just exists secondary pollution problem to oil product itself.
Summary of the invention:
Task of the present invention provides a kind of above-mentioned defective that overcomes, and technical process weak point, less investment, does not add the continuous filtering and refining method for edible oil of chemical reagent.The present invention includes slightly the degreasing of coming unstuck, dewax, come unstuck, the deacid-deodoring process, its main points are:
(1) take off assorted crude oil and pump into the premixed device that comes unstuck through preheating and carry out premix, add the solid-state physics degumming agent simultaneously in premixed device, the crude oil behind the premix pumps into the filter that comes unstuck and comes unstuck; Wherein the solid-state physics degumming agent is the food grade degumming agent---citric acid degumming agent.
(2) crude oil that comes unstuck pumps into (modified) mixing tank, adds simultaneously that to pump into quality-adjusting device polarity after the physics flocculating aids mixes modified, pumps into the dewaxing of dewaxing strainer then; Wherein the physics flocculating aids is silicon-dioxide, diatomite etc.
(3) the dewaxing crude oil that comes unstuck pumps into the decolouring mixing tank, adds simultaneously to pump into the bleaching tower decolouring after discoloring agent and degumming agent mix, and removes discoloring agent and colloid after filtration; Wherein discoloring agent is atlapulgite, attapulgite, aluminum oxide, gac etc.
(4) the dewaxing decolouring crude oil that comes unstuck pumps into the deacid-deodoring tower deacid-deodoring through heating, then the cooling oil that gets product.
Above-mentioned continuous filtering and refining method for edible oil can carry out pre-decolorization filtering and handle before the dewaxing crude oil that comes unstuck pumps into the decolouring mixing tank.
Above-mentioned continuous filtering and refining method for edible oil can carry out thermal pretreatment before the dewaxing crude oil that comes unstuck pumps into bleaching tower, temperature is at 85--120 ℃.
Above-mentioned continuous filtering and refining method for edible oil can carry out gassing and handle before the dewaxing decolouring crude oil that comes unstuck pumps into the deodorization tower.
Above-mentioned continuous filtering and refining method for edible oil, the crude oil that comes unstuck pump into can carry out 12--18 hour modified behind (modified) mixing tank.
Above-mentioned continuous filtering and refining method for edible oil, the preheating temperature of taking off assorted crude oil is 45--100 ℃, and preferred value is 60--70 ℃, and the temperature that the dewaxing decolouring crude oil that comes unstuck pumps into before the deacid-deodoring tower is 230--270 ℃, and preferred value is 250--260 ℃.
Above-mentioned continuous filtering and refining method for edible oil, the crude oil that comes unstuck carries out polarity and pumps in the dewaxing strainer with membrane structure after modified and dewax in mixing tank, it is in 03242090.0 the patent document that this dewaxing structure of filter with membrane structure has been documented in the patent No..
Aforesaid method is applicable to the refining of sunflower seed oil, safflower oil, Fructus Maydis oil, tea-seed oil, Rice pollard oil.
The advantage of the inventive method is as follows:
1) realize full continuous filtering and refining technology, flow process is simple; No waste water is discharged; Need not the input of wastewater treatment equipment.Do not have the construction investment of dewaxing freezer, save about 2,300,000 yuan of investments (handling 100 tons of production lines with day is that example is compared with tradition).
2) dewaxing technique is placed on the technology front end in the middle of the technology, makes the bleaching clay consumption reduce (compare with tradition and reduce 30%).Simultaneously it has reduced carclazyte oil number about 0.8%, compares and can have more 200 tons of oil products, 1,500,000 yuan of prices to produce 25000 tons per year.
3) save the use of traditional whizzer, day handling 100 tons of production lines is example, can save 600,000 yuan (domestic whizzer) of investment---1,500,000 yuan (external whizzer).
4) technological operation is easy, power is few, and 75% power is to supply with transferpump, and its fault is few; Consumption of power is low.
5) realized comprehensive physics production process, for process for processing link organic, green food is laid a good foundation.
6) membrane structure DEWAXING TECHNIQUE: this The Application of Technology can be placed on this operational path of dewaxing the front end of whole production line for refining, for follow-up decolouring brings convenience, oil consumption reduces (comparing with traditional alkali refining) when making depickling, can reduce the used moving consumption of freezing dewaxing (with comparing after the tradition dewaxing is placed on deodorizing technology).
7), waterless degelatinizing and decoloration process combine, a synthetic step in two steps finishes.
8), in two steps of physical deacidification, deodorization in the synthetic step finishes and realizes the effect of alkali-free depickling, reduced to add the secondary pollution that alkali brings in the Oil Production.
The product that method of the present invention is produced is through check, and the relevant technologies standard is as follows:
| Sequence number | Project | Comparison other | My company is up to standard | |
| GB/10464-2003 | Domestic better producer | |||
| 1 | The static settling time that keeps of tank storage under 0 ℃ of state | 5.5 hour | 72 hours | |
| 2 | Peroxide value (mmol/kg) | ≤5 | ≤0.3 | |
| 3 | Insoluble impurities (%) | ≤0.05 | ≤0.02 | |
| 4 | Acid value (mgkoH/g) | ≤0.2 | ≤0.14 | |
| 5 | Moisture content and volatile matter (%) | ≤0.05 | ≤0.02 | |
| 6 | Smoke point ℃ | 215 | 228 | |
| 7 | Carbonyl value | ≤10 | ≤3 | |
| 8 | Wax residual value (ppm) | 100～200 | ≤5 | |
| 9 | Outward appearance | As clear as crystal | As clear as crystal | |
| 10 | (Luo Weipeng is than meter for color and luster | Yellow 15 red 1.5 | Yellow 8 is red | |
| 133.4mm groove) | 1.1 | |||
| 11 | Smell, flavour | Odorlessness, mouthfeel are good | Odorlessness, mouthfeel are good | |
| 12 | Solvent residual amount (mg/kg) | Must not separate out | Must not separate out | Do not detect |
| 13 | Refining process oil decreases (%) | 3～3.5 | ≤1.5 |
Below in conjunction with embodiment the present invention is described further.
Embodiment 1: present embodiment comprises slightly the degreasing of coming unstuck, dewax, comes unstuck, the deacid-deodoring process, its main points are: (1) is taken off assorted crude oil and is pumped into the premixed device that comes unstuck for 50 ℃ through preheating and carry out premix, add solid food grade degumming agent simultaneously in premixed device, the crude oil behind the premix pumps into the filter that comes unstuck and comes unstuck; (2) crude oil that comes unstuck pumps into (modified) mixing tank, adds simultaneously to pump into quality-adjusting device polarity modified 13 hours after an amount of silicon-dioxide mixes, and pumps into the dewaxing of dewaxing strainer then; (3) the dewaxing crude oil that comes unstuck pumps into the decolouring mixing tank, adds simultaneously to pump into the bleaching tower decolouring after the discoloring agent atlapulgite mixes, and removes discoloring agent and colloid after filtration; (4) the dewaxing decolouring crude oil that comes unstuck pumps into the deacid-deodoring tower deacid-deodoring through heating 260 ℃, is cooled to the normal temperature oil that gets product then.The present embodiment following advantage of having compared with traditional technology: 1., no longer include large amount of sewage and produce,, reduced the sewage disposal working cost so do not reinvest Sewage treatment systems.2., reduced the use of whizzer, also just reduced the acquisition expenses of whizzer, whizzer costs an arm and a leg, 100 ton per days are handled 560,000 yuan one of homemade need, import needs 1,500,000 yuan one, the traditional technology production line needs two or three.3., easy, the processing ease of technology, little, the failure rate few about 40% of few, the moving consumption of technology power-equipment.4., in the dewaxing operation, do not build freezer, compare the cost of erection of having saved freezer greatly (day handle 100 tons of dewaxing traditional technologys need freezer to invest 1,500,000 yuan), traditional technology is unloaded the wax pin needs 6 people manually unload wax, and this technology only needs 1 people operation, unloads wax automatically.5., this novel process realized, the physical refining process is no longer as traditional technology comprehensively, uses to add acid and come unstuck, add the alkali depickling, reduced the pollution of acid base pair oil product itself simultaneously.6., this novel process and traditional reduced in comparison production line, will come unstuck, depickling, decolouring, deodorization, degreasing, six steps of dewaxing shortened into for four steps and finish.
Embodiment 2: present embodiment comprises slightly the degreasing of coming unstuck, dewax, comes unstuck, the deacid-deodoring process, its main points are: (1) is taken off assorted crude oil and is pumped into the premixed device that comes unstuck for 65 ℃ through preheating and carry out premix, add solid food grade degumming agent simultaneously in premixed device, the crude oil behind the premix pumps into the filter that comes unstuck and comes unstuck; (2) crude oil that comes unstuck pumps into (modified) mixing tank, adds simultaneously to pump into quality-adjusting device polarity modified 16 hours after an amount of diatomite mixes, and pumps into the dewaxing of dewaxing strainer then; (3) the dewaxing crude oil that comes unstuck pumps into the decolouring mixing tank, adds simultaneously to pump into the bleaching tower decolouring after discoloring agent atlapulgite and degumming agent mix, and removes discoloring agent and colloid after filtration; (4) the dewaxing decolouring crude oil that comes unstuck pumps into the deacid-deodoring tower deacid-deodoring through heating 270 ℃, is cooled to the normal temperature oil that gets product then.Present embodiment compares with embodiment 1 that to have product color bright, the high advantage of acid value (0.28mgKOH/g).
Embodiment 3: present embodiment comprises slightly the degreasing of coming unstuck, dewax, comes unstuck, the deacid-deodoring process, its main points are: (1) is taken off assorted crude oil and is pumped into the premixed device that comes unstuck for 65 ℃ through preheating and carry out premix, add solid food grade degumming agent simultaneously in premixed device, the crude oil behind the premix pumps into the filter that comes unstuck and comes unstuck; (2) crude oil that comes unstuck pumps into (modified) mixing tank, adds simultaneously to pump into quality-adjusting device polarity modified 15 hours after an amount of diatomite mixes, and pumps into then in the dewaxing strainer with membrane structure to dewax; (3) the dewaxing crude oil that comes unstuck carries out pumping into the decolouring mixing tank after pre-decolorization filtering is handled, and adds discoloring agent atlapulgite and degumming agent simultaneously and mixes, and carries out thermal pretreatment, and temperature pumps into the bleaching tower decolouring then at 90 ℃, removes discoloring agent and colloid after filtration; (4) the dewaxing decolouring crude oil that comes unstuck pumps into the deacid-deodoring tower deacid-deodoring after heat 255 ℃ and gassing are handled, and is cooled to the normal temperature oil that gets product then.Present embodiment compares with embodiment 2 that to have product peroxide value index low, the smoke point height, and color and luster is light, i.e. and quality better, and employed physical decolorization dosage reduces by 10% advantage.
Claims (9)
1. continuous filtering and refining method for edible oil comprises slightly the degreasing of coming unstuck, dewax, comes unstuck, the deacid-deodoring process, it is characterized in that:
(1) take off assorted crude oil and pump into the premixed device that comes unstuck through preheating and carry out premix, add the solid-state physics degumming agent simultaneously in premixed device, the crude oil behind the premix pumps into the filter that comes unstuck and comes unstuck;
(2) crude oil that comes unstuck pumps into mixing tank, adds simultaneously that to pump into quality-adjusting device polarity after the physics flocculating aids mixes modified, pumps into the dewaxing of dewaxing strainer then;
(3) the dewaxing crude oil that comes unstuck pumps into the decolouring mixing tank, adds simultaneously to pump into the bleaching tower decolouring after discoloring agent and degumming agent mix, and removes discoloring agent and colloid after filtration;
(4) the dewaxing decolouring crude oil that comes unstuck pumps into the deacid-deodoring tower deacid-deodoring through heating, then the cooling oil that gets product.
2. continuous filtering and refining method for edible oil as claimed in claim 1, the dewaxing crude oil that it is characterized in that coming unstuck carry out pre-decolorization filtering processing before pumping into the decolouring mixing tank.
3. continuous filtering and refining method for edible oil as claimed in claim 1 or 2, the dewaxing crude oil that it is characterized in that coming unstuck carries out thermal pretreatment before pumping into bleaching tower, and temperature is at 85 ℃--and 120 ℃.
4. continuous filtering and refining method for edible oil as claimed in claim 1 or 2, the dewaxing decolouring crude oil that it is characterized in that coming unstuck carries out the gassing processing before pumping into deacid-deodoring tower.
5. continuous filtering and refining method for edible oil as claimed in claim 1, the crude oil that it is characterized in that coming unstuck pump into modified mixing tank 12-18 hour.
6. continuous filtering and refining method for edible oil as claimed in claim 1, the preheating temperature that it is characterized in that taking off assorted crude oil is 45 ℃--100 ℃, the temperature that coming unstuck dewaxing decolouring crude oil pumps into before the deacid-deodoring tower is 230 ℃--270 ℃.
7. continuous filtering and refining method for edible oil as claimed in claim 6, the preheating temperature that it is characterized in that taking off assorted crude oil is 60 ℃--70 ℃, the temperature that coming unstuck dewaxing decolouring crude oil pumps into before the deacid-deodoring tower is 250 ℃--260 ℃.
8. continuous filtering and refining method for edible oil as claimed in claim 1, the crude oil that it is characterized in that coming unstuck carry out polarity and pump in the dewaxing strainer with membrane structure after modified and dewax in quality-adjusting device.
9. continuous filtering and refining method for edible oil as claimed in claim 3, the dewaxing decolouring crude oil that it is characterized in that coming unstuck carries out the gassing processing before pumping into deacid-deodoring tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510054605XA CN100374535C (en) | 2004-07-12 | 2005-03-04 | Continuous filtering and refining method for edible oil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410071576 | 2004-07-12 | ||
| CN200410071576.3 | 2004-07-12 | ||
| CNB200510054605XA CN100374535C (en) | 2004-07-12 | 2005-03-04 | Continuous filtering and refining method for edible oil |
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| CN100374535C true CN100374535C (en) | 2008-03-12 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101480206B (en) * | 2009-02-10 | 2011-04-06 | 湖南巴陵油脂有限公司 | Technique for rapidly dewaxing rape oil |
| CN102504950B (en) * | 2011-11-08 | 2013-06-05 | 安徽绿健生物科技有限公司 | Method for decolorizing tea seed oil |
| CN103215124B (en) * | 2013-04-03 | 2014-10-15 | 长沙理工大学 | Refining process of original sweet tea seed oil via low-temperature physical membrane method |
| CN105524713B (en) * | 2016-02-03 | 2019-12-17 | 西双版纳华坤生物科技有限责任公司 | Industrialized method for removing rubber from rubber tree seed oil |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06116582A (en) * | 1992-10-06 | 1994-04-26 | Kanegafuchi Chem Ind Co Ltd | Method for cleaning oil and fat |
| US5681483A (en) * | 1994-04-29 | 1997-10-28 | Elf Antar France | Process for the treatment of oily suspensions |
| CN1737094A (en) * | 2004-08-17 | 2006-02-22 | 王朝阳 | Edible oil continuous filtration fining process |
-
2005
- 2005-03-04 CN CNB200510054605XA patent/CN100374535C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06116582A (en) * | 1992-10-06 | 1994-04-26 | Kanegafuchi Chem Ind Co Ltd | Method for cleaning oil and fat |
| US5681483A (en) * | 1994-04-29 | 1997-10-28 | Elf Antar France | Process for the treatment of oily suspensions |
| CN1737094A (en) * | 2004-08-17 | 2006-02-22 | 王朝阳 | Edible oil continuous filtration fining process |
Non-Patent Citations (1)
| Title |
|---|
| 浅析物理精炼法中前处理工序. 刘铁柱等.食品科技，第5期. 1999 * |
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