KR101383876B1 - Oil adsorbing materials of selective absorbent for oils - Google Patents

Oil adsorbing materials of selective absorbent for oils Download PDF

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KR101383876B1
KR101383876B1 KR1020110086447A KR20110086447A KR101383876B1 KR 101383876 B1 KR101383876 B1 KR 101383876B1 KR 1020110086447 A KR1020110086447 A KR 1020110086447A KR 20110086447 A KR20110086447 A KR 20110086447A KR 101383876 B1 KR101383876 B1 KR 101383876B1
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adsorption
oil
pack
adsorption pack
adsorbent
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KR1020110086447A
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KR20130023577A (en
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이은용
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(주)굿세라
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/20—Controlling water pollution; Waste water treatment
    • Y02A20/204—Keeping clear the surface of open water from oil spills

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  • Environmental & Geological Engineering (AREA)
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  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

The present invention relates to an adsorption pack using an oil adsorbent which selectively adsorbs only oil components by excluding water adsorption by implementing a porous inorganic product adsorbent containing aquatic waste products and natural plant extracts.
The present invention mixes and dissolves the waste shells, which are by-products of the marine shells, at 50 µm to 5,000 µm. The natural plant extract is mixed with the calcium silicate wetting gel, and the selective oil material adsorbent formed by drying is put in an adsorption pack having a bag shape.

Description

OIL ADSORBING MATERIALS OF SELECTIVE ABSORBENT FOR OILS}

The present invention relates to an adsorption pack using an oil adsorbent which selectively adsorbs only oil components by excluding water adsorption by implementing a porous inorganic product adsorbent containing aquatic waste products and natural plant extracts.

Oil spill accidents in the sea are increasing year by year, and in particular, the increase in the amount of spills per accident caused by the increase in the size of transport ships carrying crude oil will contaminate wide areas in a short time. Inorganic products such as ash, volcanic ash, silica and zeolite were used as adsorbents, and straw, bales, corn cobs, peat, moss, sawdust, etc., which are economically available because of low cost, were used as natural organic adsorbents.

However, if the inorganic product is used as an adsorbent, it can absorb oil up to 4 ~ 8 times its own weight, but it is difficult to recover if some of it absorbs water and sinks in water, which has a problem of continuously affecting the environment. Adsorbents are readily available, but there is a problem that they can act as another contaminant due to decay in water.

In addition, oil can be removed using plastic fibers made of polyethylene or polypropylene and plastic foam made of polyurethane. However, since the adsorbents made of the above organic compounds are made from crude oil, There is a problem in that it accelerates the transportation, and there is also a problem that organic adsorbents can act as another contaminant if left in water without recovery.

In order to solve this problem, it is a porous inorganic product adsorbent containing aquatic waste products and natural plant extracts, and it excludes the adsorption of water and selectively adsorbs only the oil components so that it does not settle in the water. Mixing and dissolving nitric acid in the waste pulverized powder to a μm level, ammonium vanadate is added, and the silicate is mixed to prepare a calcium silicate wet gel having a porosity, and natural plant extracts are mixed with the calcium silicate wet gel. Although the dry selective oil substance adsorbent is manufactured, the oil substance adsorbent is manufactured in powder form, and stored and transported, and is sprayed to the oil accident site in powder form, thus transporting, storing, spraying and removing the oil substance adsorbent. There is considerable difficulty in this.

The present invention has been made in view of the above-mentioned problems, a porous inorganic product adsorbent containing waste shells and natural plant extracts as a by-product of the fish, excluding the adsorption of water and selectively adsorbs only the oil components, the oil adsorbent that does not settle in water is powder It is formed in the form, so as to eliminate the difficulties caused during storage, transportation, spraying and removal of the oil material adsorbent, and put the oil material adsorbent in an adsorption pack having a bag form to prevent leakage to the outside in the form of powder By configuring the adsorption pack fastening device, it is to facilitate the storage and handling so that rapid control is achieved.

The present invention mixes and dissolves the waste shells, which are by-products of the marine shells, at 50 μm to 5,000 μm, by mixing nitric acid, adding ammonium vanadate, and mixing the silicates to prepare calcium silicate wet gel having porosity. Natural plant extracts are mixed with the calcium silicate wetting gel, and the dried selective oil material adsorbent is sealed by placing it in an adsorption pack having a bag form so that the powdery oil material adsorbent is not exposed to the outside while the adsorption pack is connected to each other. To use it.

The present invention is a low-cost manufacturing process is possible by forming a porous porous inorganic product from natural materials and inorganic materials, and when used in the field of marine oil spill accident, to prevent the spread of marine pollution of crude oil, surface containing natural plant extracts The adsorption pack that absorbs oil after the adsorption pack is stored and transported by spraying the adsorption pack into a bag-type adsorption pack, which selectively removes moisture and selectively adsorbs oil materials due to hydrophobicity. Since it is removed, there is an effect that the transport, storage, spraying, removal of the adsorption pack easily.

In addition, the present invention can see the effect of controlling a wide area by allowing the adsorption pack to be easily connected to each other.

1 is a flow chart showing a method for producing a selective oil adsorbent used in the present invention
2 is a plan view
Figure 3 is a cross-
Figure 4 is a side cross-
5 is a cross-sectional view of an embodiment of connecting the adsorption pack of the present invention with each other
Figure 6 is a cross-sectional view of another embodiment of connecting the adsorption pack of the present invention

The present invention is to put the selective oil material adsorbent in the adsorption pack, first the method of manufacturing the selective oil material adsorbent will be described and then the structure and operation of the adsorption pack containing the selective oil material adsorbent.

First, the selective oil adsorbent used in the present invention will be described.

1 is a flow chart showing a method for producing a selective oil adsorbent used in the present invention.

The selective oil material adsorbent of the present invention is an oil material adsorbent for quickly removing contaminants in a sea area where an environmental damage such as a crude oil spill accident occurs in the ocean. Let's estimate.

Method for producing a selective oil material adsorbent of the present invention comprises the steps of dissolving the waste shell powder mixed with nitric acid solution (S110); Adding ammonium vanadate to the mixture (S120); Mixing a silicate to the mixture to prepare a calcium silicate wet gel (S130); Mixing the natural plant extract with the calcium silicate wet gel (S140); And drying the mixture (S150).

In the above case, the particle size of the closed shell is preferably pulverized to 50 μm to 5,000 μm. When the particle size is 50 μm or less, the energy cost of powdering the closed shell is excessively generated, resulting in low efficiency. When mixing to form an aqueous solution of calcium nitrate, the reaction time takes a long time is not preferable.

The nitric acid is preferably in the industrial content of 10% by weight to 68% by weight, and can be used in the case of a mixture of nitric acid and nitrous acid, by mixing the waste shell powder in a strong acid nitric acid solution to maintain a pH of 2 ± 0.5 state closed The carbon dioxide gas is discharged and removed, and the calcium component is preferably dissolved completely with an aqueous solution of calcium nitrate. When the content of nitric acid used here is 10% by weight or more, the waste shell cannot be completely dissolved, and the content of nitric acid is 68 Concentrated nitric acid of more than% by weight is not preferable because it is not easy to handle and very dangerous for the operator.

The ammonium vanadate (AV) acts as a reaction catalyst, and it is preferable to use a powder having a particle size of 1 μm to 300 μm, but when the particle size is 1 μm or less, the price is very expensive and the manufacturing cost is high. It is not preferable because it rises sharply, and when the particle size is 300 µm or more, ionization is not easy, so it is difficult to penetrate into the pores of the adsorbent, and thus it is not preferable because it does not play a role as a reaction catalyst and is discharged and removed.

The silicate is used to prepare calcium silicate particles by mixing with aqueous calcium nitrate solution and to form a porous skeleton, and any one or more of sodium metasilicate, potassium metasilicate, sodium oxosilicate, potassium osilicate and In this case, the silicate is added to the aqueous calcium nitrate solution having a pH of 2 ± 0.5 to maintain the weak acidity of H 4.0 to 6.0 level, and the silicates are alkaline and have a strong acidity of pH 2 ± 0.5. When it reacts with the aqueous solution of calcium nitrate, it neutralizes and gels gradually, forming calcium silicate particles. At this time, when the silicate reacts to pH 4.0 or less, the calcium silicate particles are difficult to gel, and thus, porous adsorbents cannot be prepared. If the silicate reacts as above, the gelation reaction may be excessive and the pores may be irregularly formed. Which is not preferable.

The natural plant extracts are used to enhance the hydrophobicity of the adsorbent from which the effective organic ingredients contained in the plant are sterilized and pesticidal, and ginger, lacquer, wood vinegar, ginkgo biloba, pine extract, etc. It is preferable to use an extract, and when the adsorbent using the natural plant extract is used in water, it prevents the occurrence of fungi and the like, and the fat-soluble component in the natural plant extract enhances the hydrophobicity of the adsorbent, and is used as an extractant. The alcohol may be any one of ethanol, butanol, octanol, hydroxysilane (hydrolyzed silane), or a mixture thereof. The extractant has a weaker surface tension than water so that the fat-soluble component in the natural plant extract may be Induces easier contact with calcium silicate wetting gel, As a result, the inorganic product porous body is hydrophobically modified, and the reverse reaction may occur after the modified porous surface is hydrolyzed again, but the fat-soluble component included in the natural plant extract inhibits the reverse reaction to enhance hydrophobicity. .

The natural plant extract is a method of homogeneous mixing in calcium silicate wetting gel, soaking calcium silicate wet gel in natural plant extract for a long time or by vibrating diffusion using an ultrasonic vibrator, or the temperature of the extract solution in which calcium silicate wet gel is soaked. By increasing the diffusion rate while increasing the production time, it is possible to shorten the manufacturing time and effectively prepare the selective oil adsorbent.

In the drying process, the natural plant extract should be dried at a temperature that is not carbonized, and preferably dried at a temperature of 150 ° C. or less and a pressure of 760 mmHg or less, wherein the remaining nitrate components are denatured in catalytic activity of the vanadium component. It is decomposed and removed by the selective oil material adsorbent prepared thereby can be prepared by neutralizing to pH 6.5 to 7.5 level.

Referring to the process for producing a selective oil material adsorption material of the present invention as a specific embodiment as follows.

Powdered 100g of the corpuscle angle by using a pestle, and then powder obtained by passing through 80 mesh (mesh) standard net is prepared to prepare the waste shell powder, and 10wt% industrial nitric acid is added dropwise to the waste shell powder to have a pH of 2 ± 0.5. Addition and stirring for 1 hour using a magnetic stirrer while maintaining the temperature of the solution at 50 ℃ to prepare a calcium nitrate aqueous solution, 50mg of ammonium vanadate (large gold, 300㎛ or less) to the calcium nitrate aqueous solution Add potassium metasilicate (3 types of KS standard), diluted 1: 1 with distilled water, to make the aqueous solution pH 5.0, gelate with calcium silicate, and add natural plant extract to the gelated calcium silicate. Calcium silicate was surface-modified while maintaining at 150 ° C in a flask, and the natural plant extract used was diluted with 1 liter of trimethoxymethylsilane and 3 liters of distilled water. To carry the leaf was extracted for 20 days, where the natural plant extract was prepared by adding 20ml of oak wood vinegar and octanol 3 liters.

Here, the plant extractant and the water are evaporated until the calcium silicate is dried to the porous body, so that the condenser (condenser) is attached to the flask to separate the evaporation material. On the other hand, when 25ml of crude oil (Crude Oil, Mongolian acid) was spilled in water (S210), it showed the ability to adsorb using 3g of selective oil adsorbent (S220, S230), which is shown in FIG. .

Since the selective oil material adsorbent prepared by the above method has a powder form, it is not easy to transport and store, and also it is easy to spray the selective oil material adsorbent because the selective oil material adsorbent in the form of powder should be sprayed at the site of oil leakage. The problem is not exposed.

In addition, the selective oil material adsorbent should be removed after adsorbing the oil, but it must be removed in a lumped state by the oil adsorption spreading over a large area, there is a considerable difficulty in removing after the oil adsorption.

In view of the above, the present invention is to store and spray and recover the selective oil material adsorbent in the form of powder in the adsorption fabric so that the use can be made easily. Take a look at the pack.

Figure 2 is a plan view of the present invention, Figure 3 is a front sectional view of the present invention, Figure 4 is a side cross-sectional view of the present invention, Figure 5 is a cross-sectional view of the embodiment of connecting the adsorption pack of the present invention, Figure 6 is an adsorption pack of the present invention Is a cross-sectional view of another embodiment connecting each other.

The present invention is to put the selective oil material adsorbent having a powder form in the bag-type adsorption pack so that the selective oil material adsorbent is not exposed to the outside, but the interconnection of the adsorption pack is made by using the connecting means to both sides of the adsorption pack It is.

The selective oil substance absorbent 10 of the present invention is manufactured by the above-described method, and the adsorption pack 20 has a bag shape, and the selective oil substance absorbent 10 is not leaked to the outside in a state in which it is embedded. Since it should not be, open the inlet to put the optional oil adsorbent (10) and then seal the inlet.

Here, the adsorption pack 20 is made of a material in which oil or water is absorbed without leaking to the outside of the selective oil material adsorbent 10 in the form of powder, such as a nonwoven fabric, and the adsorption pack 20 of the present invention It does not need to be limited to the nonwoven fabric, but it can be used as long as it prevents the leakage of the built-in powder such as the nonwoven fabric and does not cause a circular loss phenomenon that is released or torn even if it is wet with water for a long time while passing oil or water.

Adsorption pack 20 of the present invention, after the optional oil material adsorbent 10 is injected is sealed by pressing the inlet side by heat or sealed using a lock, etc., having a predetermined length on both sides or up and down sides of the adsorption pack 20 The connection part 21 is formed so that the connection between the adsorption pack 20 and the adsorption pack 20a is made through the connection part 21.

In the present invention, the connecting portion 21 is overlapped and then connected to each other by using a clip or a ring 40, or by connecting the Velcro tape 30 to both sides of the connecting portion 21 to connect using the Velcro tape 30 In order to achieve this, the present invention is sufficient if the interconnection of the adsorption pack (20, 20a) can be made by using the connection portion (21).

The present invention is provided with a bag-shaped adsorption pack 20, but the inlet is sealed after injecting the selective oil material adsorbent 10 in the interior of the adsorption pack 20, the selective oil material adsorbent in the form of powder to the outside (10) is not exposed and can be easily transported and stored.

And, in the oil leakage accident site, there was a difficulty in spraying the powder as in the conventional, but in the present invention is to throw the adsorption pack 20 to the accident site, there is no difficulty in the spraying of the adsorption pack 20, oil The adsorption pack 20 can be easily picked up, and it can be more easily removed from the adsorption pack 20 than the powder is tangled as in the past.

The adsorption pack 20 of the present invention is tossed on the site of the oil leak accident, the oil meets the selective oil material adsorption material (10) filled in the adsorption pack 20 is made of adsorption. This is as described above.

Therefore, when a predetermined time elapses after throwing the adsorption pack 20, the adsorption pack 20 adsorbs oil, and the adsorption pack 20 that adsorbs the oil can be easily retrieved using a loop or a net.

Meanwhile, both sides of the adsorption pack 20 in the present invention protrude the connecting portion 21 by using the other adsorption pack 20 and the connection means such as the ring 40 or the Velcro tape 30 by the adsorption pack 20 ( 20a) can be used for a long connection, in this case can effectively prevent the oil strip spread while the removal of the adsorption pack (20) (20a) can be made easily, using a connection means in the field A strip using the adsorption pack 20 can be used to the required length.

10: selective oil adsorbent
20: adsorption pack
21: Connection
30: Velcro tape
40: The ring

Claims (3)

Mixing and dissolving the waste pulverized powder having a particle size of 50 μm to 5,000 μm in a nitric acid solution having a content of 10% by weight to 68% by weight (S110),
Adding ammonium vanadate, which is a powder having a particle size of 1 μm to 300 μm, as a reaction catalyst, to the mixture dissolved by mixing the waste shell powder in a nitric acid solution (S120);
Preparing a calcium silicate wet gel by mixing the waste shell powder in a nitric acid solution and then dissolving the silicate in a mixture to which ammonium vanadate is added (S130);
Mixing the natural plant extract on the calcium silicate wet gel (S140),
After the step (S150) of drying the mixture of natural plant extracts mixed with the calcium silicate wetting gel is added to the adsorption pack 20 of the bag-type adsorption pack 20 is characterized in that it blocks the inlet Adsorption pack using selective oil material adsorbent. The adsorption pack according to claim 1, wherein the adsorption pack (20) forms a connection portion (21) on both sides so as to be connected to the other adsorption cloth through the connection means. The method of claim 2, wherein the connecting means is a Velcro tape 30 attached to the connecting portion 21 of the adsorption pack 20 or the ring 40 penetrating through the connecting portion 21, using an optional oil material adsorbent Adsorption pack.
KR1020110086447A 2011-08-29 2011-08-29 Oil adsorbing materials of selective absorbent for oils KR101383876B1 (en)

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KR101383876B1 true KR101383876B1 (en) 2014-04-11

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030095912A (en) * 2002-06-15 2003-12-24 (주)하이엔텍 The catalyst for removing injuriousness gas and manufacturing method of the same
JP2005305201A (en) 2004-03-25 2005-11-04 Mie Prefecture Production method for molding having adsorptivity from pearl oyster shell
KR20090125588A (en) * 2008-06-02 2009-12-07 (주)삼양디엔씨 Production method of deodorant for 'old person's body odor'
KR20100050161A (en) * 2008-11-05 2010-05-13 백우현 Red tide eliminator using pottery stone and its manufacturing method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030095912A (en) * 2002-06-15 2003-12-24 (주)하이엔텍 The catalyst for removing injuriousness gas and manufacturing method of the same
JP2005305201A (en) 2004-03-25 2005-11-04 Mie Prefecture Production method for molding having adsorptivity from pearl oyster shell
KR20090125588A (en) * 2008-06-02 2009-12-07 (주)삼양디엔씨 Production method of deodorant for 'old person's body odor'
KR20100050161A (en) * 2008-11-05 2010-05-13 백우현 Red tide eliminator using pottery stone and its manufacturing method

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