CN107486173A - For removing the filter medium, filter core and preparation method of benzopyrene from edible oil - Google Patents

For removing the filter medium, filter core and preparation method of benzopyrene from edible oil Download PDF

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Publication number
CN107486173A
CN107486173A CN201710799825.8A CN201710799825A CN107486173A CN 107486173 A CN107486173 A CN 107486173A CN 201710799825 A CN201710799825 A CN 201710799825A CN 107486173 A CN107486173 A CN 107486173A
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China
Prior art keywords
powder
filter medium
oil
benzopyrene
edible oil
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CN201710799825.8A
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蒋荣平
曹龙基
罗喆
罗志华
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Guangzhou Zhuo Zhuo Environmental Protection Technology Co Ltd
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Guangzhou Zhuo Zhuo Environmental Protection Technology Co Ltd
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Priority to CN201710799825.8A priority Critical patent/CN107486173A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26Synthetic macromolecular compounds
    • B01J20/261Synthetic macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/12Naturally occurring clays or bleaching earth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/16Alumino-silicates
    • B01J20/165Natural alumino-silicates, e.g. zeolites
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11BPRODUCING, 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
    • C11B3/00Refining fats or fatty oils
    • C11B3/10Refining fats or fatty oils by adsorption

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Microbiology (AREA)
  • Fats And Perfumes (AREA)

Abstract

The invention provides a kind of preparation method for the filter medium for removing benzopyrene from edible oil, the filter core, oil purifier and oil strain kettle being made up of the filter medium are further related to.Comprise the following steps:A) ultra-high molecular weight polyethylene powder, medicinal active powdered carbon, roasting zeolite powder, atlapulgite powder and gas generation agent are mixed, obtain mixture, the ultra-high molecular weight polyethylene powder, medicinal active powdered carbon, roasting zeolite powder, the weight ratio of atlapulgite powder and gas generation agent are 100 ~ 190:5~50:20~60:25~60:80~130;B) by step a)The mixture of gained is suppressed, sinters, cooled down in a mold;The pressing pressure is 0.4MPa ~ 1Mpa, and sintering temperature is 200 DEG C ~ 245 DEG C, and sintering time is 90 ~ 150min, and chilling temperature is 40 DEG C ~ 60 DEG C.Filter medium provided by the invention is high to the clearance of benzopyrene from edible oil, and using simple, cost is low, without subsequent treatment, can exempt BaP to injury caused by human body, to the clearance of benzopyrene from edible oil more than 99%.

Description

For removing the filter medium, filter core and preparation method of benzopyrene from edible oil
Technical field
The present invention relates to a kind of filter medium for removing benzopyrene from edible oil and preparation method thereof, and by the filter medium Filter core, oil purifier and the oil strain kettle of composition.
Background technology
BaP(English abbreviation BaP), it is a kind of multi-ring aromatic hydrocarbons that benzene forms with pyrene fusion.BaP is a kind of very strong Carcinogenic substance, skin, lung and alimentary canal canceration can be induced.It is extremely strong that a kind of carcinogenicity is just had proven to be early in the 1930s Compound.In 2006, BaP " was likely to pair by international cancer research institution of the World Health Organization from the second class A groups Human carcinogen " is changed to the first kind " human carcinogen ".It was once done experiment by Japanese with rabbit.Experiment shows, incites somebody to action BaP is coated on the ear of rabbit, is coated onto the 40th day, tumour has just been grown in rabbit ears.
BaP has a stronger lipophilic characteristics, raw material planting, harvesting pollution or processing conditions is improper is all likely to become BaP source in grease.In addition, grease high-temperature heating after BaP content be heating before 2.33 times.After testing, it is used for multiple times High-temperature vegetable oil, or the frying oil of Reusability can all produce BaP, and oil temperature used is higher during frying, caused BaP It is more.More than 300 degree of heating, even short time, it can also produce substantial amounts of carcinogenic substance BaP.
In recent years, occur, about the exceeded food safety affair of BaP in edible vegetable oil, triggering in succession both at home and abroad Government and the public are to the limit standard and detection method of the BaP in edible vegetable oil, as European Union is defined in edible vegetable oil BaP maximum limitation is 2 μ g/kg, and Codex Alimentary Commission provides that the maximum limitation of BaP in vegetable oil is 5 μ g/kg, I BaP maximum limitation is 10 μ g/kg in state's regulation edible vegetable oil.
At present, the content of benzopyrene from edible oil is reduced by protecting oil plant to dry environment, temperature production processing, but damaged Consumption is high, causes cost to be difficult to receive;Or in course of oil processing, by heating, add certain carbon content active and carry out mixing and stir Mix, final filtration, but operation is relatively cumbersome, and the filter residue after filtering easily pollutes environment, has an effect on execute-in-place.Chinese patent application A kind of minimizing technologies of benzopyrene from edible oil (number of patent application 201110183678.4) of CN102260591A, its palliating degradation degree Not high, ultraviolet radiation may cause the generation of peroxide, influence oil quality;Chinese patent application CN102160581A is public The process of BaP and other harmful substances (number of patent application 201110064771.3) in a kind of quick removal tea oil is opened Technique describes not specific, clear (grease inorganic agent is unclear), it is difficult to implements and reaches its effect.
The content of the invention
In view of this, present invention solves the technical problem that being to provide a kind of filter medium and preparation method thereof, the filtering is situated between The clearance of BaP in confrontation edible oil is high, and method is simple.Additionally provide be made up of this filter medium filter core, Oil purifier and oil strain kettle.
The invention provides a kind of preparation method for the filter medium for removing benzopyrene from edible oil, comprise the following steps:
Ultra-high molecular weight polyethylene powder, medical activated carbon, roasting zeolite powder, atlapulgite and gas generation agent are mixed, mixed Thing, the ultra-high molecular weight polyethylene powder, medical activated carbon, roasting zeolite powder, the weight ratio of atlapulgite and gas generation agent are 100 ~190:5~50:20~60:25~60:80~130;Preferably 110 ~ 180:10~40:30~50:35~50:90~120;More preferably 120~170:20~30:35~40:40~50:95~115。
B) by step a)The mixture of gained is suppressed, sinters, cooled down in a mold;The pressing pressure be 0.4MPa ~ 1Mpa;The sintering temperature is 200 DEG C ~ 245 DEG C;The sintering time is 90 ~ 150min;The chilling temperature is 40 DEG C ~ 60 ℃。
Specifically, mixed powder is filled into pre-designed mould, it is compacted into by pressurization, pressure is excellent Choosing is not more than 2MPa, more preferably 0.4 ~ 1.0MPa, and is adapted with the material of mould therefor;Mould can by cast iron, steel or Any appropriate material manufacture that can bear relevant pressure and temperature.Silicon can be selected in mould inner surface release agent application Oxygen alkane is oily or any other commercially available releasing agent being hardly adsorbed onto on filter medium, can also use processing release paper.Sintering Temperature is 200 DEG C~245 DEG C, more preferably 220 DEG C~240 DEG C;Sintering time be 90 minutes~120 minutes, more preferably 100 Minute~110 minutes;40 DEG C~60 DEG C demouldings are cooled to after sintering.In this manufacturing process, in the experiment of inventor many times Afterwards, the filter medium produced in above-mentioned sintering temperature and time range is drawn, filter effect is more preferable.
Described ultra-high molecular weight polyethylene is the polyethylene that weight average molecular weight is more than 1,000,000, and preferable particle diameter is 89 μm ~124 μm.Ultra-high molecular weight polyethylene can obtain from domestic production producer, such as Beijing Orient petrochemical industry Co., Ltd auxiliary agent two Factory can provide M-I types(Molecular weight is 150 ± 500,000), M-II types(Molecular weight is 250 ± 500,000), M-III types(Molecular weight is 350 ± 500,000), M-IV types(Molecular weight is more than 4,000,000)The product of equal-specification.One effect of ultra-high molecular weight polyethylene is The effect of filter medium skeleton is bonded and is formed, because the molecular weight of ultra-high molecular weight polyethylene is big, melt viscosity is very high, melts It can not flow after melting, so using ultra-high molecular weight polyethylene by suppressing, sintering obtained filter medium, easily be formed micro- Hole, it can play a part of purifying edible oil.
The primary raw material of activated carbon can be almost all organic materials rich in carbon, such as coal, timber, shell, coconut husk, core Peach shell, apricot shell, jujube shell etc..These carbonaceous materials are changed in activation furnace under high temperature and certain pressure by pyrolysis Viability charcoal.It is a kind of porous material, has cellular pore structure, larger specific surface area, special surface official It can roll into a ball, stable physical and chemical properties, be excellent adsorbent, catalyst or catalyst carrier.
Activated carbon contains a large amount of micropores, can effectively remove heterochromatic, peculiar smell in frying oil, can remove most of organic contaminations Thing and some inorganic matters, particularly efficient absorption BaP carcinogenic substance.Medical activated carbon, as the related drug surveilance standard of country Product, impurity content is low, and surface area is bigger, and adsorption effect is also more preferable, and from medical activated carbon can ensure filtering be situated between Matter is directly used in the processing of frying oil.
In the present invention, it is preferred to use particle diameter, for 84~100 μm of medical activated carbon, the specific surface area of the activated carbon is excellent Choosing is not less than 500m2/g, more desirably not less than l000m2/g.
Zeolite is the most commonly used with natural zeolite, including modenite, chabasie, magnesium zeolite and clinoptilolite powder etc. are tens of Kind.Natural zeolite is the general name of aqueous polysilicate, and its crystalline texture is mainly made up of silicon-oxy tetrahedron, which part tetravalence Silicon ion is substituted by trivalent silicon ion, causes negative electrical charge superfluous, therefore have alkali metal in structure(Or alkaline-earth metal)Isoequilibrium electricity The ion of lotus, while have vestibule and the duct of certain pore size in zeolite framework, determine that it has the property such as absorption, ion exchange Matter.
Roasting zeolite powder of the present invention is to be boiled by the natural tiltedly hair Na type H type P type zeolite powder or octahedral of high-temperature process The one or more of stone flour etc..Preparation method is to take to be crushed to 80 ~ 180 μm of zeolite powder, using high-temperature calcination technique, then Natural cooling.The high temperature is preferably 450 ~ 580 DEG C, and roasting time is 3.5 ~ 4.5 hours.
It with clay is raw material that atlapulgite, which is, is handled through inorganic acidifying, then rinsed through water, drying is made, odorless, tasteless, Nontoxic, not soluble in water, organic solvent and each quasi-grease, absorption property is very strong, and purposes is extremely wide.It is used in vegetable and animals oils highly industry Decolourize and purify;In petroleum industry, for Petropols, paraffin, paraffin oil, the decolouring and purification of kerosene;Paper industry is used for The coloring agent of carbon paper, fill out oil plant, dyestuff;It is used as fire extinguisher powder in terms of forestry and soil-water protection;It is used as in chemical industry Catalyst and catalytic carrier, the carrier of insecticide, agricultural chemicals and bactericide, rubber and filler for plastic, drier and filtering agent, put Penetrate the adsorbent of waste.
Preferably, the particle diameter of atlapulgite powder of the present invention is 65 ~ 120 μm.
Gas generation agent of the present invention is a kind of material for easily decomposing and producing a large amount of gases and causing hair engaging aperture to act on, wherein azo Class compound, sodium acid carbonate, ammonium hydrogen carbonate, ammonium carbonate, sulphonyl nitrile compounds, oxalic acid etc. are its typical representatives.As excellent Choosing, gas generation agent are at least one of azodicarbonamide, food grade ammonium bicarbonate, oxalic acid.Wherein, food grade ammonium bicarbonate Claim AMMONIUM BICARBONATE FOOD GRADE, distinguished with technical grade ammonium hydrogen carbonate.Although technical grade ammonium hydrogen carbonate also plays the role of hair engaging aperture, It may the impurity containing insalubrity, should not be used as frying oil filter medium raw materials for production.
The creative discovery of the present inventor, by above-mentioned ultra-high molecular weight polyethylene powder, medicinal active powdered carbon, roasting zeolite Powder, atlapulgite and gas generation agent it is sintered after, form mutually synergy, the BaP in edible oil can be adsorbed fully.
In the present invention, it is not particularly limited for the source and purity of above-mentioned raw materials, it is preferably commercially available.
In the present invention, the no any restrictions of mixing for above-mentioned raw materials, powder will not can be significantly changed to be any The low shear mixer or agitator of particle diameter and size distribution, preferably can be that agitator, the drum-type of blunt impeller blade are mixed Clutch, spiral agitator etc..This is not entered depending on the type of blender for the rotating speed of above-mentioned mixer and agitator Row limitation, preferably avoids kicking up dust.
Present invention also offers following technical scheme:By above-mentioned preparation method obtain be used for remove benzopyrene from edible oil Filter medium.
Present invention also offers following technical scheme:A kind of removal benzopyrene from edible oil being made up of above-mentioned filter medium Filter core.
Present invention also offers following technical scheme:A kind of oil purifier, including above-mentioned filter medium or filter core.
Present invention also offers a kind of oil strain kettle including above-mentioned oil purifier.
The present invention coordinates specific sintering temperature, pressure and chilling temperature, is prepared under above-mentioned raw materials synergy Filter medium it is high to the clearance of benzopyrene from edible oil, method is simple, suitable for edible oil pollute by it, release benzo Pyrene is to injury caused by human body, and easy to use, cost is low, is not powder additionally, due to filter core is used, so without follow-up Processing.After testing the filter medium to the clearance of benzopyrene from edible oil more than 99%.
Embodiment
In order to further illustrate the present invention, with reference to embodiments to removal benzopyrene from edible oil provided by the invention Filter medium is described in detail.
Embodiment 1
(1)Ultra-high molecular weight polyethylene powder 180g is weighed, the ultra-high molecular weight polyethylene is that Beijing Orient petrochemical industry is limited The M-I type products of second auxiliary factory of company, its molecular weight are 1,500,000;
(2)The medicinal active powdered carbon 20g that particle diameter is 90 μm is weighed, the specific surface area of the medical activated carbon is 700m2/g;
(3)Weigh 120 μm of the roasting zeolite powder 50g that the modification mode of 460 DEG C of roasting temperatures is modified;
(4)It is 65 ~ 120 μm of atlapulgite powder 70g to weigh particle diameter, originates from Guangzhou and looks forward to Tonghua Co., Ltd;
(5)Weigh gas generation agent 110g;
(6)Above-mentioned five kinds of powder, which are put into, to stir 10 minutes in mechanical agitator is well mixed it;
(7)Take 200g to be packed into tubular die in powder upon mixing, suppressed under 0.7MPa hydraulic pressure, 200 Sintered 120 minutes at a temperature of DEG C;
(8)Naturally cool to 50 DEG C and then be stripped with siloxanes uranium releasing agent, produce filter core.
Embodiment 2
(1)Ultra-high molecular weight polyethylene powder 150g is weighed, the ultra-high molecular weight polyethylene is that Beijing Orient petrochemical industry is limited The M-III type products of second auxiliary factory of company, its molecular weight are 3,700,000;
(2)The medicinal active powdered carbon 14g that particle diameter is 84 μm is weighed, the specific surface area of the medical activated carbon is 1500m2/g;
(3)110 μm of roasting zeolite powder 45g for claiming the modification mode of 500 DEG C of roasting temperatures to be modified;
(4)It is 65 ~ 120 μm of atlapulgite powder 50g to weigh particle diameter, originates from Dongguan atlapulgite drier and opens up the limited public affairs of gloomy chemical industry Department;
(5)Weigh gas generation agent 110g;
(6)Above-mentioned five kinds of powder, which are put into, to stir 10 minutes in mechanical agitator is well mixed it;
(7)Take 200g to be packed into tubular die in powder upon mixing, suppressed under 0.6MPa hydraulic pressure, 220 Sintered 100 minutes at a temperature of DEG C;
(8)Naturally cool to 50 DEG C and then be stripped with siloxanes uranium releasing agent, produce filter core.
Embodiment 3
(1)Ultra-high molecular weight polyethylene powder 120g is weighed, the ultra-high molecular weight polyethylene is that Beijing Orient petrochemical industry is limited The M-IV type products of second auxiliary factory of company, its molecular weight are 4,300,000;
(2)The medicinal active powdered carbon 10g that particle diameter is 96 μm is weighed, the specific surface area of the medical activated carbon is 1200m2/g;
(3)Claim 90 μm of the oblique hair roasting zeolite powder 25g that the modification mode of 450 DEG C of roasting temperatures is modified;
(4)It is 65 ~ 120 μm of atlapulgite powder 30g to weigh particle diameter, originates from Inner Mongol profit Longhua work Co., Ltd;
(5)Weigh gas generation agent 90g;
(6)Above-mentioned five kinds of powder, which are put into, to stir 10 minutes in mechanical agitator is well mixed it;
(7)Take 200g to be packed into tubular die in powder upon mixing, suppressed under 0.9MPa hydraulic pressure, 240 Sintered 90 minutes at a temperature of DEG C;
(8)Naturally cool to 50 DEG C and then be stripped with siloxanes uranium releasing agent, produce filter core.
Embodiment 4
Example 1~3 much micropores tubulose filter core 1,2,3 filter cores, liner two-layer nonwoven, nonwoven of double-baging outside Cloth, then polypropylene porous web is wrapped in outer layer, filter core both ends are bonded with connection end cap, are positioned in stainless steel or plastic casing, For handling edible oil, after testing, the filter core is good to the removal effect of the BaP in edible oil, as shown in table 1.Very It is adapted to the filtering needs of family or food and drink edible oil.
Table 1 uses the BaP content of filter core edible oil before and after the processing, unit:ppb
The method of testing used in table l is with reference to standard GB/T 5009.27-2016, with liquid chromatography to each filter element filtering Front and rear edible oil detects the content of BaP respectively.It can be seen that from table l and be removed edible oil using the filter core of the present invention Middle BaP achieves good effect.
To filter medium provided by the present invention and preparation method thereof and made of the filter medium, filter core enters above Go and be discussed in detail.Specific embodiment is applied in this specification to be set forth the principle and embodiment of the present invention, it is right In those of ordinary skill in the art, the thought according to the present invention is in specific embodiments and applications in implementation process Any change should be included in protection scope of the present invention within.Therefore, the content that this specification is recorded should not be construed as to this The limitation of invention.

Claims (7)

1. a kind of preparation method for the filter medium for removing benzopyrene from edible oil, it is characterised in that follow the steps below: A) ultra-high molecular weight polyethylene powder, medicinal active powdered carbon, roasting zeolite powder, atlapulgite powder and gas generation agent are mixed, mixed Compound, the ultra-high molecular weight polyethylene powder, medicinal active powdered carbon, the weight for being calcined zeolite powder, atlapulgite powder and gas generation agent Than for 100 ~ 190:5~50:20~60:25~60:80~130;B) by step a)The mixture of gained suppresses, sinters in a mold, Cooling;The pressing pressure is 0.4MPa ~ 1Mpa;The sintering temperature is 200 DEG C ~ 245 DEG C;The sintering time be 90 ~ 150min;The chilling temperature is 40 DEG C ~ 60 DEG C.
2. preparation method according to claim 1, it is characterised in that the zeolite powder for roasting zeolite powder, the roasting Zeolite powder is the one or more by the natural tiltedly hair Na type H type P type zeolite powder or faujasite powder of high-temperature process etc..
3. preparation method according to claim 1, it is characterised in that the particle diameter of atlapulgite powder of the present invention is 65 ~ 120 μ m。
4. the mistake for being used to remove benzopyrene from edible oil that preparation method according to any one of claim 1 to 3 obtains Filter medium.
5. a kind of filter core, it is characterised in that be made up of the filter medium described in claim 4.
6. a kind of oil purifier, it is characterised in that including described in the filter medium described in claim 4 or claim 5 Filter core.
7. a kind of oil strain kettle, it is characterised in that including the oil purifier described in claim 6.
CN201710799825.8A 2017-09-07 2017-09-07 For removing the filter medium, filter core and preparation method of benzopyrene from edible oil Pending CN107486173A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109022127A (en) * 2018-07-26 2018-12-18 望江县振兴植物油厂(普通合伙) A kind of preparation method of beautifying face and moistering lotion sesame oil

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CN102266691A (en) * 2011-06-16 2011-12-07 奇迪电器集团有限公司 Filtering medium for removing ammonia nitrogen from drinking water and preparation method thereof
CN102363123A (en) * 2011-09-19 2012-02-29 周奇迪 Filtering medium for removing anthracene from water, preparation method thereof, filter core and purifier
CN102430286A (en) * 2011-09-19 2012-05-02 周奇迪 Filtering medium capable of removing benzo(a)pyrene in water, preparation method thereof, filtering core and water purifying device
CN102524428A (en) * 2011-11-29 2012-07-04 广西壮族自治区林业科学研究院 Method for removing benzopyrene in oil-tea camellia seed oil
CN105289111A (en) * 2015-12-01 2016-02-03 佛山市农业总公司 Filtering medium and filter core for removing triclosan from drinking water and preparation method of filtering medium

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Publication number Priority date Publication date Assignee Title
CN102266691A (en) * 2011-06-16 2011-12-07 奇迪电器集团有限公司 Filtering medium for removing ammonia nitrogen from drinking water and preparation method thereof
CN102363123A (en) * 2011-09-19 2012-02-29 周奇迪 Filtering medium for removing anthracene from water, preparation method thereof, filter core and purifier
CN102430286A (en) * 2011-09-19 2012-05-02 周奇迪 Filtering medium capable of removing benzo(a)pyrene in water, preparation method thereof, filtering core and water purifying device
CN102524428A (en) * 2011-11-29 2012-07-04 广西壮族自治区林业科学研究院 Method for removing benzopyrene in oil-tea camellia seed oil
CN105289111A (en) * 2015-12-01 2016-02-03 佛山市农业总公司 Filtering medium and filter core for removing triclosan from drinking water and preparation method of filtering medium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109022127A (en) * 2018-07-26 2018-12-18 望江县振兴植物油厂(普通合伙) A kind of preparation method of beautifying face and moistering lotion sesame oil

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Application publication date: 20171219