WO1996037433A1

WO1996037433A1 - Method of treating bone charcoal, product of said method, method of extracting apatite from untreated bone or bone ash, and apatitic material

Info

Publication number: WO1996037433A1
Application number: PCT/JP1996/001352
Authority: WO
Inventors: Hideo Namiki
Original assignee: Advance Co., Ltd.; Kabushiki Kaisha Frontier
Priority date: 1995-05-22
Filing date: 1996-05-22
Publication date: 1996-11-28
Also published as: AU5778296A

Abstract

Apatite is obtained by carbonizing animal bones to prepare bone charcoal, pulverizing the bone charcoal to prepare bone charcoal powder, mixing the powder with an acid under stirring followed by the separation of the first activated charcoal from a supernatant, adding the supernatant to an alkali solution for neutralization followed by the separation of the first apatite thus precipitated from a supernatant, adding an acid to the first activated charcoal under stirring followed by leaving of the resulting mixture to stand still and separation of the second activated charcoal thus precipitated from a supernatant, adding the supernatant to an alkali solution for neutralization followed by the separation of the second apatite thus precipitated from a supernatant, adding an acid to the second activated charcoal under stirring followed by leaving of the resulting mixture to stand still and separation of the third activated charcoal thus precipitated from a supernatant, and adding the supernatant to an alkali solution for neutralization followed by the separation of the third apatite thus precipitated from a supernatant.

Description

Description Name of Invention

TECHNICAL FIELD The present invention relates to a method for treating bone charcoal, a product thereof, a method for extracting apayte from raw bone or bone ash, and an apatite material.

The present invention relates to a method for treating bone char obtained by carbonizing animal bone and a product thereof, a method for extracting abalone from raw animal bone or bone ash obtained by calcining the same, and a method obtained by these methods. Related to apatite materials using apatite. Background art

Animal bones such as cattle, pigs, and tuna are used for various purposes after meat is taken.For example, bone charcoal obtained by carbonizing animal bones is subjected to special filtration using its adsorption characteristics. It is used.

However, the range of use of this bone charcoal is limited, and at present it has not yet been fully utilized.

On the other hand, hydroxyapatite contained in bone components is effective in removing plaque (bacteria clumps) attached to teeth, and is also effective in strengthening the tooth surface and promoting remineralization. It has the property of adsorbing lipids and is therefore used in dentifrices and column packing materials. This hydroxyapatite can be obtained from natural bone as, for example, bone ash, but since bone ash is a calcined apatite, there is a drawback that the adsorption property is low as shown in an experimental example later. A method for efficiently extracting high unburned abatite from natural bone has not yet been established. Therefore, at present, an artificially synthesized hydroxyaperite is used.

However, the formation of hydroxyapatite requires a lot of time and labor, and the production cost is high.Therefore, a method for efficiently extracting hydroxyapatite from natural bone by simple processing has been desired. I have.

The present invention has been made in view of such circumstances, and a first object of the present invention is to efficiently obtain apatite and activated carbon from bone char obtained by carbonizing animal bones. The purpose is to efficiently obtain apatite from raw bone or bone ash obtained by firing it, and the third purpose is to make effective use of bone char and apatite obtained by the method of the present invention. is there. Disclosure of the invention

The method for treating bone charcoal of the present invention comprises the steps of: carbonizing animal bone to bone charcoal; pulverizing the bone charcoal to bone charcoal powder; mixing the bone charcoal powder with an acid; The method includes a step of separating the supernatant from the supernatant, and a step of separating the supernatant from the first apatite precipitated by adding the supernatant generated in this step to neutral solution and neutralizing the supernatant.

The method for treating bone char according to the present invention comprises the steps of: further adding an acid to the first activated carbon; stirring the mixture; and allowing the mixture to stand to separate the precipitated second activated carbon from the supernatant. The method may include a step of separating the supernatant from the second apatite precipitated by adding the resulting supernatant to an alkaline solution and neutralizing the supernatant.

The method for treating bone char according to the present invention comprises the steps of: further adding an acid to the second activated carbon, stirring the mixture, and then allowing the mixture to stand to separate the precipitated third activated carbon from the supernatant; Put the resulting supernatant in the solution In addition, the method may include a step of separating the supernatant from the third avatarite precipitated by neutralization.

The activated carbon of the present invention is formed as a first precipitate after adding an acid to powdered bone char and stirring, and further adding an acid to the first precipitate and stirring the first precipitate. What is formed as a second precipitate by standing, and further, which is formed as a third precipitate by further adding an acid to the second precipitate and stirring, and then is allowed to stand It is.

The apatite of the present invention is obtained by adding an acid to powdered bone charcoal, stirring the mixture, separating the precipitate into a first precipitate and a supernatant, and adding the resulting supernatant to an alkaline solution for neutralization. It is produced as a precipitate, and after further adding an acid to the first precipitate and stirring, the mixture is allowed to stand to be separated into a second activated carbon and a supernatant, and the resulting supernatant is subjected to distillation. It is produced as a precipitate by adding it to a concentrated solution and neutralizing it.Furthermore, an acid is added to the second precipitate, the mixture is stirred, and then left standing to form a third activated carbon. It is separated from the supernatant, and the resulting supernatant is added to an alkaline solution to neutralize it, thereby producing a precipitate.

The method for extracting apatite from raw bone according to the present invention comprises a step of pulverizing bone from which gelatin is removed from raw bone into raw bone powder, and a step of dissolving raw bone powder obtained in this step in acid. A step of adding the resulting solution dropwise to an alkaline solution to form a mixed solution, and a step of allowing the mixed solution obtained in this step to stand to obtain apatite as a precipitate.

The method for extracting apatite from bone ash according to the present invention comprises the steps of baking animal bone to produce bone ash, and dropping a solution obtained by dissolving the bone ash obtained in this step in an acid into an alkaline solution. Adding the mixture to form a mixture, and allowing the mixture obtained in this step to stand still to remove apatite as a precipitate. Obtaining step.

The bone char obtained by the method of the present invention can be used as a toner for printing by making it finer, or can be used as a far-infrared ray generating material by forming it into a conductive wire.

The apatite obtained by the method of the present invention includes ink-jet recording paper, printing paper, pat materials, antibacterial agents, food additives, detergents, building materials, filter materials, deodorants, nucleic acid absorbents and activated carbon exchange. It can be used for timing materials.

The ink jet recording paper of the present invention is provided with a coating layer containing an aperitite and a binder on a base paper.

The printing paper of the present invention is obtained by providing an apatite layer on a base paper.

The pad material of the present invention is obtained by providing a layer containing apatite on a base material.

The anti-fungal agent of the present invention is obtained by suspending apatite in water.

The food additive of the present invention uses apatite. The building material of the present invention is formed using aperitite.

The filter material of the present invention uses apatite. The deodorant of the present invention uses apatite.

The nucleic acid absorbent of the present invention uses apatite. The activated carbon exchange timing judging material of the present invention is composed of an apatite powder layer which is mounted on the downstream side of the processing fluid of the activated carbon loaded in the cartridge, and is observed from a window provided in the power cartridge. The replacement time of the activated carbon is determined by comparing the color change to be performed with the color indicator provided in the power trolley. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a process chart showing a process of extracting activated carbon and apatite from bone char by the method of the present invention.

FIG. 2 is a cross-sectional view showing a state in which a toner composed of an aperiticle obtained by the method of the present invention is adhered on a printing paper.

FIG. 3 is a cross-sectional view showing a state in which toner adheres to printing paper provided with a layer made of the aper- ture obtained by the method of the present invention on a base paper.

FIG. 4 is a sectional view showing an example of the pad material of the present invention.

FIG. 5 is an explanatory view showing an example of a use state of the activated carbon replacement time judging material of the present invention.

Figure 6 shows the adsorption rate of the ink jet ink for each sample: ^ a.

FIG. 7 is a graph showing the adsorption rate of the ink for ink jetting for each sample.

FIG. 8 is a table showing the state of creep for each sample.

FIG. 9 is a table showing odor measurement results for each sample. FIG. 10 is a table showing the results of measuring the odor of each sample. FIG. 11 is a table showing the measurement results of the odor for each sample. FIG. 12 is a table showing the odor measurement results for each sample. FIG. 13 is a graph showing the absorbance of coffee strained with filter paper mixed with the second apatite obtained by the method of the present invention at a ratio of 25% by weight.

FIG. 14 is a graph showing the absorbance of a coffee strained with a filter paper containing 50% by weight of the second apatite obtained by the method of the present invention.

FIG. 15 is a table showing the DNA adsorption rate of each sample. Fig. 16 is a table showing the serum albumin (BSA) adsorption rate of each sample.

FIG. 17 is a table showing the adsorption rate of the ink for ink jet for each sample. BEST MODE FOR CARRYING OUT THE INVENTION

First, a method for treating bone char according to the present invention will be described with reference to FIG. As shown in Fig. 1, in the method for treating bone charcoal of the present invention, for example, animal bones such as cows and pigs, or fish bones represented by tuna are used for about 1, Carbonize for about 10 hours at a temperature of 00 ° C (STEP 1) o

This carbonization causes nitrogen compounds in the bone components to evaporate, and the bone in the steaming furnace is taken out as bone charcoal. This bone char consists of activated carbon (C), apatite (calcium phosphate compound), and inorganic metals (Ca, K, Na).

Next, the bone char obtained by the above-mentioned carbonization operation is crushed into bone char powder (STEP 2). This bone charcoal powder can be directly used as a fertilizer as a phosphate fertilizer and a potassium fertilizer.

In addition, activated carbon (C) adsorbs low molecular weight organic substances and apatite adsorbs high molecular weight organic substances, so both activated carbon (C) and apatite can be used as filter materials. It can be suitably used for processing. If necessary, activated carbon (C) and apatite can be treated with an acid-alkali base, and then both such activated carbon (C) and apatite can be used, for example, for tobacco filter materials and air-filter materials. Available to Further, these activated carbons (C) and apatites may be contained in walls as, for example, an antifungal material, or are effective as pharmaceuticals, for example, for colorectal cancer. In addition, it can be used as cosmetics, for example, by incorporating it into a facial wash pack.

Next, the acid-rich treatment of bone charcoal powder will be specifically described. That is, the bone charcoal powder obtained by the above-mentioned pulverization process is prepared in a container, 1N hydrochloric acid (HCl) is added to this (STEP3), and the mixture is stirred to form a cloudy liquid.

Then, when the turbid solution is allowed to stand, it is separated into a first activated carbon as a precipitate composed of carbon and apatite and a supernatant containing apatite. The first activated carbon can be removed by filtering this solution. The bone charcoal powder may be mixed with hydrochloric acid and then filtered immediately without standing.

On the other hand, the above supernatant is injected into an alkali solution containing 1 N sodium hydroxide (NaOH) or 0.1 N calcium hydroxide (Ca (OH) 2) separately prepared ( S TE P4).

When this alkaline solution is allowed to stand, the first apatite precipitates. The precipitate is usually washed with distilled water, desalted and filtered. The supernatant at this time should be neutralized and discarded.

When 1N HC1 is further added to the first activated carbon (STEP 5), and then the mixture is stirred and allowed to stand, the second activated carbon precipitates. The supernatant at this time is poured into an alkaline solution containing 1 N sodium hydroxide (NaOH) or further 0.1 N Ca (OH) ₂ in the same manner as STEP4 (STEP). 6) When this alkaline solution is allowed to stand, a second apatite precipitates. The precipitate is usually washed with distilled water, desalted and filtered. At this time, discard the supernatant after neutralization.

Thus, the second activated carbon and the second apatite having higher purity than the first activated carbon and the first apatite can be obtained. When 1 N HC1 is further added to the second activated carbon (STEP 7), and then the mixture is stirred and allowed to stand, the third activated carbon precipitates. The supernatant at this time is treated in the same manner as STE P4 and STE P6 in IN sodium hydroxide (NaOH) or further in an alkaline solution containing 1N Ca (OH) ₂ . Injection (STEP 8) and letting this alkali solution stand still precipitate the third aperitite. The precipitate is usually washed with distilled water, desalted and filtered. The supernatant at this time should be discarded after neutralization.

Thus, the third activated carbon and the third apatite having higher purity than the second activated carbon and the second apatite can be obtained.

As a pretreatment in STEP 3, the bone charcoal powder is washed with 0.1 N hydrochloric acid (HC 1) in advance (STEPX), and then subjected to a treatment of STEP 3 or less, whereby the first activated carbon and the first activated carbon are removed. The apatite purity can be improved.

Next, a method for extracting apatite from raw bone or bone ash according to the present invention will be described.

In the method for extracting apatite from raw bone according to the present invention, bone obtained by removing gelatin from raw bone is ground into raw bone powder, and hydrochloric acid (HC 1) is added to the raw bone powder and stirred. By this operation, the raw bone meal is dissolved in the hydrochloric acid. This solution is poured into a separately prepared alkaline solution containing sodium hydroxide (NaOH) or a lower concentration of calcium hydroxide (Ca (OH) ₂ ). When this mixture is allowed to stand, an aperitum precipitates. The precipitated apatite is washed with water to obtain a product.

In the method of extracting apatite from bone ash according to the present invention, animal bone is burned at a high temperature in an oxygen atmosphere to obtain bone ash.

Because carbon in bone is lost as co ₂ by high temperature combustion, The bone ash is pulverized by a crusher into bone ash powder, and hydrochloric acid (HC 1) is added to the bone ash powder and stirred. The bone ash powder is dissolved in the hydrochloric acid. This solution is poured into separately prepared sodium hydroxide (NaOH) or an alkaline solution containing a lower concentration of calcium hydroxide (Ca (OH) ₂ ). When this mixture is allowed to stand, apatite precipitates. The precipitated apatite is washed with water to obtain a product. Bone ash is composed of a large amount of apatite. Therefore, even if the bone ash powder is simply washed with distilled water, it is possible to obtain an apatite having a purity that can be used as it is in some applications.

According to the method of the present invention, activated carbon and abatite can be obtained at low cost and in large quantities.

Next, the use of activated carbon and apatite obtained by the method of the present invention will be described.

(A) Use of activated carbon

1) Use as printing toner

The first activated carbon, the second activated carbon, and the third activated carbon obtained by the method of the present invention all contain carbon and hydroxyapatite as main components, and these activated carbons are all black in color and carbon. It can be charged because it contains. Therefore, it can be used as a printing toner by making the particles finer.

That is, as shown in FIG.

(1) Activated carbon, activated carbon (2) and activated carbon (3) are finely divided, and any one of them can be used alone or as a mixture of two or more. it can.

When the paper on which an image is formed is immersed in an acid, for example, hydrochloric acid (HC 1), the hydroxyapatite in the toner 2 is dissolved in the hydrochloric acid, and the toner 12 is separated from the surface of the paper 1. The paper 1 from which the toner 2 has been separated from the surface of the paper 1 in this manner can be suitably reused as a raw material for recycled paper.

2) Far infrared ray generating material

Since the first activated carbon, the second activated carbon, and the third activated carbon obtained by the method of the present invention all contain conductive carbon and hydroxyapatite, bone charcoal is powdered and solidified to form a conductive wire. When an electric current is applied to the conductive wire, far infrared rays are generated.

Therefore, the first activated carbon, the second activated carbon, and the third activated carbon obtained by the method of the present invention can be used as far-infrared ray generating materials.

3) Use as general activated carbon

According to experiments, the first activated carbon, the second activated carbon and the third activated carbon obtained by the method of the present invention have an adsorption capacity of about 1 to 2 as compared with general activated carbon obtained from coconut shells and the like. If the first activated carbon, the second activated carbon, and the third activated carbon are activated by, for example, steam treatment, they can be applied as general activated carbon.

(B) Use of hydroxyapatite

As described above, the high-mouth xiapatite obtained from bone char or bone ash has a color close to pure white and has a high ability to adsorb various substances, that is, a high ability to adsorb odors, moisture, oils, proteins, nucleic acids, and the like. Various applications are conceivable because of containing.

1) Surface coating agent for ink jet recording paper

Since hydroxyapatite is pure white in color and has a remarkably higher adsorption ability to ink than other substances, the apatite obtained by the method of the present invention can be used as a surface coating agent for ink jet recording paper. is there.

Specifically, at least the hydroxyapatite and base O Provide an ink-jet recording paper by providing a coating layer containing

The base paper is not particularly limited. For example, wood pulp such as shredded pulp (GP), sulfite pulp (SP), craft pulp (UKP), semi-chemical pulp (SCP), and chemi-grand pulp (CGP), and pigments Base paper that is made by mixing paper and other additives such as a sizing agent and paper strength improver, and a size press or anchor coat layer that uses polyvinyl alcohol, starch, etc. It is preferable to use any base paper provided or coated paper such as art paper, coated paper, cast coated paper, etc., provided with a coating layer on these size presses or anchor coated layers. Can be.

The coating layer is composed of a coating composition containing at least a hydroxyapatite and a binder.

The hydroxyapatite is used as an essential component of a coating composition because it has an effect of increasing ink absorption and suppressing spread of a dot to reduce bleeding.

Examples of the binder contained in the coating composition include casein, soy protein, gelatin, starch and derivatives thereof, polyvinyl alcohol and derivatives thereof, styrene-butadiene copolymer, cellulose derivatives such as carboxymethylcellulose, and acrylyl-based. Polymer latex, vinyl polymer latex such as ethylene-vinyl acetate copolymer, thermosetting resin aqueous adhesive such as melamine resin, polyurethane resin, vinyl chloride-vinyl acetate copolymer, unsaturated polyester, etc. Synthetic resin adhesives and the like can be mentioned.

One of these binders may be used alone, or two or more may be used in combination.

Mixing ratio of the binder to the hydroxyapatite Can be appropriately determined according to the intended purpose of the ink jet recording paper.

The coating composition may contain various pigments together with the hydroxyapatite and the binder.

As this pigment, a white pigment is preferable, and specific examples thereof include calcium carbonate, magnesium carbonate, kaolin, calcium sulfate, titanium dioxide, zinc oxide, synthetic amorphous silica, colloidal silica, magnesium hydroxide and the like. Inorganic pigments: organic pigments such as acryl-based plastic pigments, styrene-based plastic pigments, and urea resins

Further, the coating composition may include, for example, various agents such as a thickener, a pigment dispersant, an ultraviolet ray absorbent, a foaming agent, a release agent, a fluorescent whitening agent, a preservative, an antibacterial agent, and an antifoaming agent. An additive may be contained.

The coating composition can be applied onto the base paper using various devices such as a blade coater, a mouth drinker, an air-knife coater, and a bar coater.

After the application of the coating composition, a flattening finish of the coating layer may be performed by, for example, performing a calendering process.

2) Top blank paper surface coating agent

As shown in FIG. 3, any one of the first apatite, the second apatite, and the third apatite obtained by the method of the present invention, or a mixture thereof, is provided on a base material 3 made of a blank white paper having a glossy surface. The mixture is melted to form an attached apatite layer 4.

On the aperture layer 4, toner, ink 2 and the like are attached. In this case, if the base material 3 is immersed in a hydrochloric acid (HCl) solution, the apatite layer 4 is melted and the toner, the ink 2 and the like are separated from the base material, so that the upper white paper can be easily reproduced.

2 one 3) Pad material

Hydroxyapatite has a high adsorptivity for protein oils and fats, and has a strong color, and its color is also white.Hydroxypatite must be applied in powder or uniform layer form on a substrate such as woven fabric, nonwoven fabric or sponge. As a result, it can be used as a pad material used by women for makeup.

Also, as shown in FIG. 4, a powdery or uniform layer of apatite layer 6 formed on the surface of cloth or paper 5 or the like is adhered to the surface of animal meat, fish meat, or the like to obtain the above-mentioned hydroxyapatite. Blood and the like can be adsorbed by the excellent adsorption power of the meat, and the freshness of raw meat such as livestock meat and fish meat can be maintained.

Further, for example, nonwoven fabrics are used in feminine hygiene products or ommut, and if hydroxyapatite is mixed into the nonwoven fabrics, it is useful because proteins such as blood or odors are adsorbed. To mix the hydroxyapatite into the nonwoven fabric, a slurry or suspension of the hydroxyapatite is prepared during the production of the nonwoven fabric, and the nonwoven fabric is immersed in the slurry or suspension. .

4) Antibacterial agent

According to the study of the present inventor, it has been found that water passed through the apatite obtained by the method of the present invention weakens the iron-binding property. That is, the powder of apatite obtained by the method of the present invention was placed on a filter paper, and an iron clip was immersed in water filtered and passed through water from above, and an iron clip was immersed in water that was simply passed through the filter paper. When compared with the one immersed in the paper, the clip in water through the aperitite obtained by the method of the present invention did not generate any shrinkage until 2-3 days, whereas it simply passed through the filter paper. Only underwater clips will shrink after one day, and significant differences will appear after three or four days. Was done. It is considered that the reason for this is that the phosphoric acid in the hydroxyapatite, which is the main component of the apatite obtained by the method of the present invention, is eluted into water and acts as a metal anticorrosive.

Therefore, by dipping a steel frame or the like in a suspension of hydroxyapatite and attaching hydroxyapatite to the surface thereof, the occurrence of iron mold can be effectively prevented. Also, if hydroxyapatite is added to a coating agent for the body of an automobile or the like, moisture comes into contact with the iron through the hydroxyapatite, and the coated iron becomes less durable. The performance is improved.

In addition, if a suspension of hydroxyapatite is applied to used tools, etc. instead of oil which has been conventionally used as anti-corrosion for used tools, the tools will not stick, and The next step is to use a tool, which makes the process easier. As the application means, the suspension of the hydroxyapatite is applied to a tool or the like by an injection device, or the tool or the like is immersed in the suspension and the suspension of the hydroxyapatite is attached to the tool or the like. Just do it.

Also, if a medical instrument such as a scalpel after surgery is immersed in water in which hydroxyapatite is suspended, it is possible to effectively prevent the occurrence of short-time cracking. Furthermore, in hospitals and the like, the use of water filtered with hydroxyapatite can effectively prevent the occurrence of cracks in water pipes or various devices that use water, and can significantly extend the period of use. Become.

5) Food use (Calcium source, taste remover, deodorant)

Since hydroxyapatite contains a large amount of calcium phosphate, the apatite obtained by the method of the present invention serves as a calcium source, and if powdered food is added to food, calcium will be replenished without being conscious. Especially when adding cellulose, the calcium source Will be useful as

In addition, since hydroxyapatite has a deodorizing effect, sprinkling powder of apatite obtained by the method of the present invention on, for example, raw meat or raw fish can remove the raw odor.

In addition, if the taste of the food is too strong, the taste can be reduced by adding hide-mouth xiapatite to the food. Furthermore, if hydroxyapatite is mixed into chewing gum, the hydroxyapatite will eliminate bad breath, resulting in a bad breath elimination gum.

Furthermore, since hydroxyapatite functions to prevent the occurrence of mold, if the apatite obtained by the method of the present invention is mixed into bread, rice cake and the like, the occurrence of mold can be effectively prevented.

6) Medicinal use

Hydroxyapatite also adsorbs fats and oils, so if the apatite obtained by the method of the present invention is mixed into stones, liquid body soaps, etc., it absorbs the body sebum and becomes medicated stones, liquid body soaps. It can be used as

Moreover, since hydroxyapatite adsorbs athlete's foot and water, the apatite obtained by the method of the present invention is also useful as a drug for athlete's foot. Hydroxyapatite powder also removes odors beneath the armpits, and if dirt is deposited and the skin becomes dark, for example, if you apply the hydroxypatite powder to the elbows, it will absorb dirt on the skin. It can remove dirt from darkened skin. In addition, acne with a powder or suspension of hydroxyapatite can help to remove acne. Furthermore, if the powder of hydroxyapatite is mixed into a drug that is difficult to drink due to a strong smell or bitterness, or if the powder is coated on the surface of the drug, the smell and bitterness will disappear, and the drug will be drunk. It will be easier. Hydroxyapatite powder is used for sperm. Or it can be used as a contraceptive or as a contraceptive because it interferes with fertilization by binding to the egg.

7) Building materials

Hydroxyapatite has a high odor-absorbing ability and is white in color.For example, if powdered hydroxypatite obtained by the method of the present invention is mixed with a material for forming a wall or ceiling of a hospital or the like, the powder may be mixed. However, this powder absorbs the odor and prevents the walls and ceiling from becoming odorous. It is also suitable as a wall material or ceiling material for places with smells such as toilets and kitchens.

Hydroxyapatite also absorbs moisture, so it also functions as a fungicide and can be used in humid places. In addition, hydroxypatite may be mixed into a coating liquid such as paint or mortar, and the coating liquid may be sprayed on the surface of a wall or a ceiling.

In addition, since hydroxyapatite also adsorbs bacteria, building materials made with hydroxyapatite are also effective in preventing hospital-acquired infections.

8) Filter material

If a powder of apatite obtained by the method of the present invention is mixed into the filter of the tobacco instead of the activated carbon, the harmful component of the tobacco, i.e., yuruil, can be effectively removed. If a mixture of finely chopped tobacco leaves and a powder of apatite obtained by the method of the present invention is rolled, tar is almost completely adsorbed to the apatite powder, so that tasteless or faint You can make tobacco that tastes good. Also, if the apatite powder obtained by the method of the present invention is mixed into the tobacco leaves, the apatite powder does not burn, so that the burning time of the tobacco can be prolonged, and the apatite can not only be burned. The tar content can be controlled by adjusting the content. Can be.

Further, if the hydroxyapatite obtained by the method of the present invention is mixed in the coffee filter paper, the hydroxyapatite adsorbs caffeine and the coffee taste can be made mild.

Furthermore, when an alcoholic beverage such as whiskey is brought into contact with the apatite obtained by the method of the present invention, fusel oil, which may be contained in the alcoholic beverage, is adsorbed to the apatite, so that the alcoholic beverage is produced. Mellow taste.

9) Nucleic acid adsorbent

Since hydroxyapatite has a property of adsorbing nucleic acid represented by DNA, the nucleic acid can be adsorbed to the apatite by bringing the apatite obtained by the method of the present invention into contact with the nucleic acid. By utilizing such properties of hydroxyapatite, it can be expected that viruses that cause various infectious diseases will be removed by apatite.

10) Activated carbon exchange time judgment material

In general, activated carbon is often used in a cartridge, and its color is black, so it is not known that its capacity will deteriorate even after a long usage time, and it is not known when it should be replaced.

Therefore, as shown in FIG. 5, the hydroxyapatite powder layer 13 is filled on the downstream side of the treatment fluid of the activated carbon in the cartridge 10, and the window 1 is inserted into the cartridge case facing the filling portion. 1 is provided. From this window 11, the color of the hydroxyapatite can be determined. A color indicator 12 is formed near the window 11 so that the cartridge 10 can be replaced when the color of the indicator 12 becomes substantially equal to the color of the hydroxyapatite. To Hydroxya

7 one Patite powder is pure white and gradually becomes yellowish when used, so the color can be used to detect a decrease in the adsorption capacity of activated carbon.

Experimental example 1

A 0.5% aqueous solution was prepared by diluting black ink for inkjet (“S1J-CA-1J”, manufactured by Pai Kouth Co., Ltd.) with water, and used as an ink stock solution. It was diluted 5-fold to make an ink test solution, and the absorbance of this test solution was measured to be 0.3676.

On the other hand, bone charcoal made by steaming beef bone is added to a hydrochloric acid solution (concentration 1N) to dissolve it, and then this solution is added dropwise to a sodium hydroxide solution (concentration 1N), and this mixed solution is added. The white natural apatite was extracted by allowing to stand still.

Next, 0.5 g of the natural apatite was added to 20 ml of the above-mentioned ink test solution, and the mixture was shaken for 30 minutes. Then, this ink stock solution was passed through a filter paper, and then Millipore Filler (pore size: 2〃m). The absorbance of the test solution from which the natural apatite was removed was measured. As a result, the absorbance of this test solution was 0.0515.

Here, assuming that the absorbance is A, the molar extinction coefficient of the absorbing substance is ε, the concentration is c, and the thickness of the substance layer is 1, the absorbance Α and the concentration c are proportional from Lambert-Beer's law (Α = ε c 1). Because of this relationship, the ink absorption capacity of natural apatite is calculated by the following equation.

[(0.3676-0.0515) /0.3676] X 100 = 86.0 (%) This indicates that about 86% of the ink was absorbed by 5 g of natural apatite.

Experimental example 2

In Experimental Example 1, a synthetic avatitite (manufactured by Advance Co., Ltd.) was used in place of natural apatite.

8 The absorbance of the ink test solution was measured.

As a result, the absorbance of the ink test solution after the synthesis apatite addition treatment was

0.1 It was 1954.

From the above, the ink adsorption capacity of the synthetic aperture is calculated by the following equation,

[(0.3676-0.1954) /0.3676] x 100 = 46.8 (%) From this, it can be seen that about 47% of the ink was adsorbed by 0.5 g of the synthetic aperitrate.

Experiment 3

In Experimental Example 1, the absorbance of the ink test solution was measured in the same manner as in Experimental Example 1, except that reagent abatite (manufactured by Kanto Chemical Co., Ltd.) was used instead of natural abatite.

As a result, the absorbance of the ink test liquid after the reagent apatite addition treatment was 0.2227.

From the above, the ink adsorption capacity of the reagent abatite can be calculated by the following equation: c [(0.3676- 0.2227) /0.3676] x 100 = 39.4 (%)

This indicates that about 39% of the ink was absorbed by 0.5 g of the reagent apatite.

Experiment 4

The absorbance of the ink test liquid was measured in the same manner as in Experimental Example 1, except that the reagent silicon dioxide SioOo was used instead of natural abatite.

As a result, the absorbance of the ink test solution after the addition of SiO ₂ was 0.3454.

Thus, Lee ink adsorption capacity S i 0 ₂ is calculated by the following equation.

[(0.3676- 0.3454) /0.3676] x 100 = 6.0 (%)

This indicates that about 6% of the ink was absorbed by 0.5 g of SiO ₂ . Experimental example 5

In Example 1, the absorbance of the ink test solution was measured in the same manner as in Example 1, except that amorphous silica ("Mizukasil P-78DJ" manufactured by Mizusawa Chemical Co., Ltd.) was used instead of natural apatite. .

As a result, the absorbance of the ink test solution after the amorphous silicon force adding treatment was 0.3404.

From the above, the ink adsorption capacity of amorphous silica is calculated by the following equation.

[(0.3676- 0.3404) 0.3676] X 100 = 7.4 (%)

This indicates that about 7% of the ink was adsorbed by 5 g of the amorphous silica.

Experiment 6

In Experimental Example 1, the absorbance of the ink test solution was measured in the same manner as in Experimental Example 1 except that unburned bovine bone meal was used instead of natural avatitate.

As a result, the absorbance of the ink test solution after the addition of the unfired beef bone meal was 0.3209.

From the above, the ink adsorption capacity of unfired beef bone meal is calculated by the following equation.

[(0.3676- 0.3209) no 0.3676] x 100 = 12.7 (%) This indicates that about 13% of the ink was adsorbed by 0.5 g of unfired bovine bone meal.

Experimental example 7

In Experimental Example 1, the absorbance of the ink test solution was measured in the same manner as in Experimental Example 1, except that unbaked pork bone powder was used instead of natural avatitate.

As a result, the absorbance of the ink test solution after the addition of the unfired pork bone meal was 0.3218.

From the above, the ink adsorption capacity of unfired beef bone meal is calculated by the following equation. [(0.3676- 0.3218) Z 0.3676] x 100 = 12.4 (%) This indicates that about 12% of the ink was adsorbed by 0.5 g of unfired pork bone meal.

Experiment 8

In Example 1, the absorbance of the ink test solution was measured in the same manner as in Example 1, except that edible bone meal was used instead of natural apatite.

As a result, the absorbance of the ink test solution after the addition of edible bone meal was 0.2939.

From the above, the ink adsorption capacity of edible bone meal is calculated by the following equation.

[(0.3676- 0.2939) no 0.3676] x 100 = 20.0 (%) This indicates that about 20% of the ink was adsorbed by 0.5 g of edible bone meal.

Experiment 9

In Test Example 1, the absorbance of the ink test solution was measured in the same manner as in Example 1 except that pork bone ash was used instead of natural apatite.

As a result, the absorbance of the ink test liquid after the pig bone ash addition treatment was ◦.2649.

Based on the above, the ink adsorption capacity of pig bone ash is calculated by the following equation.

[(0.3676- 0.2649) /0.3676] X 100 = 27.9 (%) This shows that about 28% of the ink was adsorbed by 0.5 g of pig bone ash.

Experimental example 10

The second apatite (sample 1) obtained by the method of treating bone char of the present invention, the pig bone ash apatite (sample 2) obtained by the method of extracting apatite from bone ash of the present invention, and tricalcium phosphate (sample 2) TC P) (Trial The adsorption rate of the black ink for ink jet (S1J-CA-1 manufactured by Pilot Co., Ltd.) was determined for each sample of the material 3) according to the following procedure. The results are shown in Table 1 in FIG. The results are shown in the graph of FIG. Experimental procedure

① Put 0.1 g of each sample into Erlenmeyer flask.

(2) Prepare the 0.5% black ink solution in each Erlenmeyer flask described in (1) above with 20ml, 40ml, 80ml, 140ml and 200ml respectively.

(3) Shake each flask at room temperature for 45 minutes, and then filter each solution.

(4) Measure the absorbance of each solution at a wavelength of 558 nm using an absorbance meter (“U-300” manufactured by Hitachi, Ltd.).

Measure.

◦Calculate the adsorption rate from the previously measured absorbance of the 5% black solution and the absorbance measured in ④.

Experimental example 1 1

Each sample of the suspension of the second apatite (sample 1), the suspension of the synthetic apatite (sample 2) and the tap water (sample 3) obtained by the method of treating bone char of the present invention was prepared. Each sample was immersed in an iron wrench and iron clip, and the state of shrimp at 24 hours, 48 hours, 144 hours, 192 hours, 216 hours, and 240 hours was evaluated by visual observation.

The results are shown in Table 2 in FIG.

Experimental Example 12

Filter paper containing no apatite (sample 1), filter paper (sample 2) containing 10% by weight of the second apatite obtained by the method for treating bone char of the present invention, and 25% by weight. Filter paper (sample 3), filter paper (sample 4) mixed with 50% by weight and wasabi extract Quality antibacterial sheet (Midori Cross Co., Ltd. “Picture”) (sample

5) 5 types of paper (12cm x 12cm) wrapped 2◦g of raw tuna meat and odor sensor immediately after packaging and 24 hours later odor sensor (“cosmos XP-329” manufactured by New Cosmos Electric Co., Ltd.) ) Was measured. The results are shown in Table 3 in Fig. 9.

Experimental example 1 3

The second apatite (sample 1) obtained by the method for treating bone char of the present invention and a deodorant for pets containing silica as a main component ("Magic Powder" manufactured by Magic Japan Co., Ltd.) (sample 2) 0.5 g was sprinkled on 4 g of cat feces, and the odor after 15 minutes was measured using an odor sensor (“cosmos XP-329” manufactured by Shin-Cosmos Electric Co., Ltd.). The results are shown in Table 4 of FIG.

Experimental example 1 4

Coffee is added using commercially available coffee beans, filter paper containing no apatite (sample 1), and filter paper (sample) containing 10% by weight of the second apatite obtained by the method of treating bone char according to the present invention. 2), filter paper (sample 3) mixed at a ratio of 25% by weight and filter paper (sample 4) mixed at a ratio of 50% by weight. The environmental odor was measured using an odor sensor (新 cosmos XP-329, manufactured by Shin-Cosmos Electric Co., Ltd.), and the difference between the odor of each coffee and the indoor odor was detected. The results are shown in Table 5 in FIG.

Experimental example 1 5

The powder of the second apatite obtained by the method of treating bone charcoal of the present invention was attached to the armpit of the subject, and the odor was measured using an odor sensor (“cosmos XP-329” manufactured by Shin-Cosmos Electric Co., Ltd.). In the same way, the odor of the subject's armpit (sample 2) and the indoor environmental odor were measured. From the comparison, the odor reduction rate was detected. The results are shown in Table 6 in FIG.

Experiment 16

A millipore filter provided with a filter paper obtained by mixing the second apatite obtained by the method for treating bone charcoal of the present invention at a ratio of 50% by weight, and a millipore filter provided with a filter paper containing no apatite. Each was fitted with a cigarette ("Mild Seven Super Light" manufactured by Japan Tobacco Inc.), smoked with an automatic smoking device, and the smoke component adhering to each filter paper was extracted with 30 ml of ethanol and the absorbance was measured. It was measured using a total meter (U-300 manufactured by Hitachi, Ltd.). As a result, the measured value of 400 ηm was 0.6050 when passed through a filter paper containing no apatite, and the second abalone obtained by the method of treating bone charcoal of the present invention was 50% by weight. ◦ 9 when passing through filter paper mixed with

581.

Experiment 17

Coffee is added using commercially available coffee beans, and filter paper without apatite (sample 1) is mixed with 10% by weight of the second abalone obtained by the method of treating bone charcoal of the present invention. Filter paper (sample 2), filter paper (sample 3) mixed at 25% by weight, and filter paper (sample 4) mixed at 50% by weight, and dilute each coffee 10 times The absorbance was measured using an absorbance meter (“U-300” manufactured by Hitachi, Ltd.). As a result, the measured values at 400 nm were as follows: ① coffee not filtered with filter paper: 0.6193, ② coffee filtered with filter paper of sample 1: 0.6866, ③ coffee filtered with filter paper of sample 2: 0.5910,コーヒー Coffee filtered with filter paper of sample 3: 〇.

6322, コーヒー Coffee strained with filter paper of sample 4: 0.6350. Fig. 13 shows the absorbance of coffee strained with filter paper (sample 3) containing 25% by weight of the second apatite, and filter paper (sample 4) containing 50% by weight of the second apatite. Fig. 14 shows the absorbance of the coffee strainer.

Experiment 18

The apatite obtained by the method for treating bone char according to the present invention is desalted (Sample 1), not desalted (Sample 2), and synthetic apatite.

Each of (Sample 3) was used as a DNA solution with a DNA concentration of 100 gZml (100 g of DNA dissolved in 1 ml of phosphate buffer) 4 m

Add the amount shown in Table 7 in Fig. 15 into 1 and allow it to stand in the refrigerator for 4 days, then use an absorbance meter (Hitachi U-300) at 260 nm for each sample. The DNA adsorption rate was calculated by the following equation. The results are shown in Table 7 in FIG.

DNA adsorption rate (%) = {(absorbance of DNA l O O ^ g / ml)

-(Absorbance after adsorption)} / (absorbance of DNA 100 ^ g / m1)

Experimental example 19

Each of (Sample 3) was added to a serum albumin (BSA) concentration of 2 mm 1 in a BSA solution (2 mg of BSA dissolved in 1 ml of phosphate buffer) in 4 ml, as shown in Table 8 in Fig. 16. After adding the amount and shaking for 1 hour, the absorbance of each sample at 275 nm was measured using an absorbance meter (U_300, manufactured by Hitachi, Ltd.), and the BSA adsorption rate was calculated by the following formula. The results are shown in Table 8 in FIG.

BSA adsorption rate (%) = {(absorbance of BSA 2 mg / ml)-(absorbance after adsorption)} / (absorption of BSA 2 mg / ml) Magnitude)

Experimental Example 20

The same procedure as in Experimental Example 1 was performed on each of the first apatite (sample 1), the second apatite (sample 2), and the third apatite (sample 3) obtained by the method for treating bone char of the present invention. The adsorption rate of black ink for ink jet (“SI J-CA-1” manufactured by Pilot Co., Ltd.) was determined from the above. The results are shown in Table 9 in FIG. Industrial applicability

The method of the present invention is a method for efficiently obtaining activated carbon and apatite from animal bone as a starting material by a simple operation. The activated carbon obtained by the method of the present invention is useful as a printing toner or a far-infrared ray generating material. Is available. In addition, the apatite obtained by the method of the present invention includes ink jet recording paper, printing paper, packing materials, antibacterial agents, food additives, detergents, building materials, filter materials, deodorants, nucleic acid absorbents and the like. It can be used as a material for determining the activated carbon exchange time.

Claims

The scope of the claims

1. The process of carbonizing animal bones to produce bone charcoal, the process of powdering this bone charcoal to produce bone charcoal, and mixing the bone charcoal and acid to separate them into first activated carbon and supernatant. And a step of separating the supernatant from the first apatite precipitated by adding and neutralizing the supernatant produced in this step in an alkaline solution. Method.

2. a step of adding an acid to the first activated carbon and stirring the mixture, and then allowing the mixture to stand to separate the precipitated second activated carbon and the supernatant; The method for treating bone charcoal according to claim 1, further comprising a step of separating the supernatant from the second apatite precipitated by adding the solution to the solution and neutralizing the solution.

3. After further adding an acid to the second activated carbon and stirring, the mixture is left to stand to separate the precipitated third activated carbon from the supernatant; and 2. The method for treating bone char according to claim 1, comprising a step of separating the supernatant from the third apatite precipitated by adding the solution to the solution and neutralizing the solution.

4. Activated carbon characterized by being produced as a first precipitate by adding acid to powdered bone charcoal, stirring, and allowing to stand.

5. Add the acid to the powdered bone charcoal, stir the mixture, and let it stand to separate it into the first precipitate and the supernatant, and add the resulting supernatant to the alkaline liquid to neutralize it. An apatite characterized in that it is formed as a precipitate by being allowed to flow.

6. Activated carbon produced as a second precipitate by adding an acid to the first precipitate, stirring the mixture, and then allowing the mixture to stand.

7. After further adding an acid to the first precipitate and stirring, the mixture is allowed to stand still to separate the precipitated second activated carbon and the supernatant, and the resulting supernatant is added to an alkaline solution for neutralization. Is formed as a precipitate by An apatite characterized by:

8. Activated carbon produced as a third precipitate by adding an acid to the second precipitate, stirring the mixture, and then allowing the mixture to stand.

9. After further adding an acid to the second precipitate and stirring, the mixture is allowed to stand and separated into a third activated carbon and a supernatant, and the resulting supernatant is added to an alkaline solution for neutralization. An apatite characterized by being formed as a precipitate.

10. A step of crushing the bone from which the gelatinous material has been removed from the raw bone to produce raw bone powder, and adding a solution obtained by dissolving the raw bone powder obtained in this step in an acid to the alkaline solution dropwise. A method for extracting abatite, comprising: a process of preparing a mixed solution; and a process of obtaining an abatite as a precipitate by allowing the mixed solution obtained in this process to stand.

11. Baking animal bones to produce bone ash, and adding a solution obtained by dissolving the bone ash obtained in this step in an acid to an alkaline solution to form a mixture. A process for obtaining apatite as a precipitate by allowing the mixture obtained in this step to stand, to obtain an apatite as a precipitate.

1 2. A printing toner characterized by making bone char obtained by carbonizing animal bone into fine particles.

1 3. A far-infrared ray-generating material consisting of bone char obtained by carbonizing animal bones.

14. Ink jet recording paper characterized by having a coating layer containing an apatite and a binder on a base paper.

1 5. Printing characterized by providing an apatite layer on the base paper

1 6. A pad material comprising a substrate and a layer containing apatite provided thereon.

1 7. An anti-fungal agent characterized by adding apatite to water.

1 8. Food additive characterized by containing apatite. 1. A detergent characterized by containing apatite.

20. A building material characterized by using aperitite. 2 1. Filter material characterized by using aperitite. 2 2. A deodorant characterized by using apatite.

23. A nucleic acid absorbent characterized by using apatite. 24. It is composed of a powdery layer of aapatite mounted on the downstream side of the processing fluid of the activated carbon filled in the cartridge, and the color change observed from a window provided in the cartridge is determined by the force. Activated carbon exchange time judging material characterized in that the activated carbon exchange time is judged by comparing it with a color indicator provided in a cartridge.