WO2012105749A1

WO2012105749A1 - Apparatus and method for manufacturing porous zeolite powder, porous zeolite powder manufactured by the apparatus and method, and product containing the porous zeolite powder as a material

Info

Publication number: WO2012105749A1
Application number: PCT/KR2011/009515
Authority: WO
Inventors: 박종관
Original assignee: Park Jong Kwan
Priority date: 2011-01-31
Filing date: 2011-12-09
Publication date: 2012-08-09

Abstract

The present invention relates to an apparatus for manufacturing porous zeolite powder, manufacturing porous zeolite powder having nanoscale grains by reducing an oxide, and using the porous zeolite powder as a material for heat sinks and electrode plates for rechargeable batteries. According to the present invention, the apparatus for manufacturing porous zeolite powder comprises: a reduction chamber (20) including a chamber main body in which hydrogen gas is supplied to an oxide, the oxide is ground, and the oxide is reduced to remove oxygen therefrom, thereby manufacturing a porous zeolite powder in which a plurality of empty voids are formed in the spaces in the oxide which were previously occupied by oxygen, and also including at least one cooling zone-forming mesh (21) installed inside the chamber main body; a heater (30) for applying heat to the reduction chamber to form an atmosphere under which oxygen is reduced in the oxide; a cooling means installed around the periphery of the reduction chamber for cooling the porous zeolite powder to maintain the porosity of the porous zeolite powder which is reduced in the reduction chamber; and an anti-oxidation coating means for coating an anti-oxidant on the surface of the porous zeolite powder which has passed through the cooling means.

Description

Apparatus and method for producing a porous zeolite powder, a porous zeolite powder produced by the apparatus and a method, and a product using the porous zeolite powder as a material

The present invention relates to a porous zeolite powder and an electrode plate for a heat sink or a secondary battery using the same, and more particularly, to prepare a porous zeolite powder having a nano-particle size by reducing an oxide, and the porous zeolite powder is a heat sink, a secondary battery. The present invention relates to an apparatus and method for producing a porous zeolite powder which can be used as an electrode plate material of the present invention, a porous zeolite powder produced by the apparatus and a method, and a product using the porous zeolite powder.

The present invention relates to a porous zeolite powder used as a raw material for a heat sink, an electrode plate of a secondary battery, and the like. Hereinafter, the present invention will be described with reference to a heat sink.

The electrical and electronic products that we always use around the world generate heat, and the heat is a cause of deterioration of the product, so the problem of how to control the heat is serious.

For example, miniaturization and high capacity of electronic chips such as computer CPU (Central Processing Unit), which are rapidly progressing in recent years, have increased the amount of heat generation of electronic chips, but also miniaturization and high density of electronic products themselves The environment that can remove the heat generated is getting worse.

The heat generation of the central processing unit (CPU), which is an integrated circuit package (hereinafter referred to as "CPU"), has been steadily increasing in proportion to the increase in the performance of computers. It is estimated to reach 16-35W, and it is expected to increase to 50W or more for GHz that can be developed in the next few years.

On the other hand, the overall size of the computer is getting smaller and smaller, so the thermal environment of the CPU is in a very poor situation, and the effective heat dissipation of the heat generated by the high-capacity CPU has become a major factor in determining the reliability and performance of the product.

In particular, since the temperature of the CPU is considerably higher than the temperature of other components, there is a problem due to the hot-spot of the CPU.

That is, the high temperature of the CPU results in a decrease in clock speed, malfunction, and a sudden increase in the occurrence rate of the CPU. In general, when the temperature of the CPU exceeds 50 ° C, the failure rate increases by 5.2 times. have.

Therefore, in recent years, as the density of computers increases, studies have been actively conducted to efficiently dissipate the heat of the CPU mounted thereon, and a cooling device composed of a heat sink and a heat radiating fan as a means of dissipating the heat of the CPU. Is being used.

As described above, the cooling device includes a heat sink and a heat dissipation fan, and the heat sink is usually formed of a material having excellent thermal conductivity, and has a heat dissipation structure for quickly dissipating heat transferred from an electronic chip.

On the other hand, the heat radiation fan is provided on one side of the heat sink has a structure to further improve the heat dissipation characteristics of the heat sink by the forced convection action.

However, conventional heat sinks are made of a material with excellent thermal conductivity, but it is not enough to absorb all the heat generated from the product. Therefore, in order to increase the cooling performance, the heat transfer surface area and the heat conduction cross-sectional area must be expanded, but in this case, the overall size of the heat sink. As the size is increased, there is a problem that it can not be mounted on the electronic products in the recent slimming and thinning trend.

In addition, the heat sink has a low endothermic capacity with only its own endothermic ability, so that the heat dissipation fan is used together. It does not work.

However, the conventional heat sink for electronic chip cooling as described above has a disadvantage in that its cooling performance is low because it simply conducts heat and radiates heat by convection at the heat radiating fins.

Meanwhile, although a synthesis method for a porous material has been proposed in the related art, there is no technique using an oxide in the related art and there is no description of a porous material for use as a raw material for an electrode plate of a heat sink and a secondary battery.

The present invention is to solve the problems as described above, by maximizing the surface area by producing a porous material by reducing the oxide to occupy the space occupied by oxygen, do not use a separate heat radiating fan when used as a raw material of the heat sink Apparatus and method for producing a porous zeolite powder which can exert excellent heat dissipation performance and can be charged when used as an electrode plate of a secondary battery, and the porous zeolite powder produced by the apparatus and method, and the porous zeolite powder The purpose is to provide the product used.

Apparatus and method for producing a porous zeolite powder according to the present invention, and a porous zeolite powder produced by the apparatus and method, and a product using the porous zeolite powder, make the space occupied by oxygen through the oxidation of an oxide into an empty space. By maximizing the surface area for endotherm and charging can be actively used as a raw material such as the heat sink and the electrode plate of the secondary battery, the heat sink can be miniaturized by sufficiently absorbing heat generated from electronic products, Since the heat dissipation is possible without the use of a separate heat dissipation fan, the size of the cooling means is reduced, so it can be easily applied to slim and thin electronic products, for example, a notebook. The electrode plate of the secondary battery accumulates a large amount of batteries The battery can be miniaturized.

1 is a state diagram according to the process according to the manufacturing method of the porous zeolite powder according to the present invention.

Figure 2 is a block diagram of a porous zeolite powder manufacturing apparatus according to the present invention.

In the porous zeolite powder manufacturing apparatus according to the present invention for achieving the above object, oxygen is charged in the oxide by supplying hydrogen gas to the oxide to pulverize the oxide and removing oxygen from the oxide by reduction. A reduction chamber comprising a chamber body for forming porous zeolite powder by forming a plurality of empty spaces, and at least one cooling zone forming network mounted inside the chamber body; A heater configured to apply heat to the reduction chamber to create an atmosphere in which oxygen is reduced in the oxide; Cooling means installed in the periphery of the reduction chamber to cool the porous zeolite powder to maintain the porosity of the reduced porous zeolite powder in the reduction chamber; It characterized in that it comprises an antioxidant coating means for coating the antioxidant on the surface of the porous zeolite powder passing through the cooling means.

Method for producing a porous zeolite according to the present invention comprises the steps of putting an oxide in a reduction chamber and heating below the melting point of the oxide to form a reducing atmosphere of the oxide; In the first step, while heating the oxide, hydrogen is applied at a predetermined pressure to reduce oxygen in the oxide while pulverizing the oxide, thereby preparing a porous zeolite powder by forming a space occupied by the oxygen into an empty space. Step 2; A third step of cooling the porous zeolite powder prepared through the second step to maintain porosity of the porous zeolite powder; It characterized in that it comprises a fourth step of coating an antioxidant on the surface of the porous zeolite powder passed through the third step.

As shown in FIG. 1, the porous zeolite powder according to the present invention is prepared using an oxide (for example, CuO, Al ₂ O ₃ , ZnO, MoO ₃ , TiO _3, etc.) as a starting material and reduces oxygen of the oxide. By changing the space occupied by oxygen in the oxide into an empty space is made porous. Here, hydrogen is injected at a constant pressure to reduce oxygen and to crush the oxide to a small particle size (nano particle size). The porous zeolite powder according to the present invention is used as a raw material of secondary products such as heat sinks and electrode plates of secondary batteries as primary products.

EMBODIMENT OF THE INVENTION Hereinafter, the porous zeolite powder manufacturing apparatus and method by this invention are demonstrated.

As shown in Figure 2, the porous zeolite powder manufacturing apparatus according to the present invention, the hopper 10 for supplying and supplying the oxide as a starting material, the space is formed inside the reduction that contains the oxide supplied by the hopper 10 The chamber 20, the heater 30 for creating an oxidizing atmosphere of the oxide contained in the reduction chamber 20, hydrogen supply means for supplying hydrogen gas to the reduction chamber 20 at a predetermined pressure to crush and reduce the oxide, Cooler 40 cooling to maintain the shape (porosity) of the reduced porous zeolite powder in the reduction chamber 20, stabilization chamber 50 for stabilizing the porous zeolite powder passed through the reduction chamber 20, stabilization chamber ( And a collection chamber in which the porous zeolite powder passed through 50) is stored.

The hopper 10 has a tubular structure in which oxides are stored and discharged, and for example, a screw feeder may be applied together to supply the stored oxides without a certain amount.

The reduction chamber 20 is provided with a space in which the oxide supplied from the hopper 10 is contained and the oxide is reduced by the hydrogen supply means. For example, the reduction chamber 20 is installed in various ways such as an upright type (vertical type) and an inclined type. Has a chamber body.

In the reduction chamber 20, as shown in the drawing, a cooling zone is formed such that the porous zeolite powder reduced therein is not shaped (formed) due to high temperature while the porous zeolite powder is scattered upwards by pressure or the like. The cooling zone is formed by the above-described cooler 40, one or more cooling zone forming network 21 may be installed in the chamber body of the reduction chamber 20 to create a better cooling atmosphere. The cooling zone forming network 21 is a mesh structure having a plurality of holes, and is installed at the bottom of the cooler 40 to differentiate the temperature of the upper and lower parts, that is, to keep the upper portion of the cooling zone forming network 21 at a lower temperature than the lower cooling. Create a zone. Meanwhile, the cooling zone forming network 21 returns a complex having a larger particle size than the hole, for example, a complex of one or more molecules to the reduction chamber 20 to be regrinded.

The reduction chamber 20 is not limited to an upright type as shown in FIG. 2, but may be disposed in an inclined type, and further includes a rotary stirrer (screw type, etc.) to mix all the oxides and hydrogen gas by uniformly stirring the oxides. ) May be installed, and on the other hand, may be installed to be rotated in place by the rotating means. That is, the reduction chamber 20 can be any structure capable of reducing the oxide.

Reference numeral 22 in the figure is a safety valve for regulating the pressure inside the reduction chamber (20). The safety valve 22 is automatically opened when the internal pressure of the reduction chamber 20 rises above a predetermined pressure so that the inside of the reduction chamber 20 does not rise to an excessive pressure.

Although the cooling zone formed by the cooler 40 and the cooling zone forming network 21 has been described and illustrated as being formed in the reduction chamber 20, the cooling zone may be formed by a cooling chamber formed separately from the reduction chamber 20. It may be.

The heater 30 heats the inside of the reduction chamber 20 so as to create a reducing atmosphere so that the reduction of the oxide contained in the reduction chamber 20 is made better. That is, the heater 30 heats the oxide at a temperature lower than the melting point of the oxide (for example, 650 to 800 ° C.) so that the properties of the oxide do not change into a liquid phase. In this case, oxygen constituting the oxide when hydrogen gas is supplied. It can be quickly separated from the metal.

The cooler 40 cools the porous zeolite powder so that the shape of the porous zeolite powder reduced in the reduction chamber 20 does not change, that is, the pores are not blocked. That is, the porous zeolite powder reduced in the reduction chamber 20 is blocked by the deterioration when the high temperature continues, the cooler 40 is to cool the inside of the reduction chamber 20 to a low temperature to prevent such deformation. The cooler 40 may be, for example, a water jacket installed at the periphery of the reduction chamber 20 to cool the cooling zone of the reduction chamber 20 by continuously circulating coolant.

Porous zeolite powder passing through the cooling zone of the reduction chamber 20 may be changed or destroyed due to a sudden temperature change, stabilization chamber 50 is applied to prevent this.

The stabilization chamber 50 stabilizes the porous zeolite powder that has passed through the cooling zone of the reduction chamber 20 to a temperature that is higher than that of the cooler but can be stabilized by cooling the porous zeolite powder. Accordingly, although not shown in the drawings, a circumference of the stabilization chamber 50 may be provided with a cooler for cooling the inside of the stabilization chamber 50.

The porous zeolite powder physicochemically stabilized by the stabilization chamber 50 may be stored in a collection chamber for commercialization, or may be made of highly purified porous zeolite powder by removing hydrogen gas through a cyclone or the like.

The porous zeolite powder prepared through the above can be oxidized by oxygen in the air, and thus can not function properly, thereby forming an anti-oxidation film. The antioxidant film may be formed by coating an antioxidant (such as fluorine), and the porous zeolite powder passing through the stabilization chamber 50 may be supplied to the antioxidant coater so as not to come into contact with the outside to coat the antioxidant.

According to the present invention, a porous zeolite powder is prepared by reducing the oxide to make a hole occupied by oxygen, and when the oxide particles are large, oxygen may be blown only outside the metal particles, in which case the oxygen is The oxide is pulverized by addition to obtain the minimum amount of oxide metal. In this case, depending on the type of oxide, but the grinding conditions of the oxide is maintained at 450 ~ 650 ℃. In this way, by oxidizing the oxides small and then translating them horizontally, it is possible to make a material that obtains higher efficiency.

Porous zeolite powder production method according to the present invention is as follows.

Reduction

The oxide stored in the hopper 10 is supplied to the reduction chamber 20. When the reduction chamber 20 is heated through the heater 30, the metal and oxygen constituting the oxide introduced into the reduction chamber 20 are weakened in the linkage. Since melting | fusing points differ according to the kind of oxide, the heating temperature by the heater 30 is not limited to a specific numerical value.

When hydrogen gas is injected into the reduction chamber 20, oxygen and hydrogen of the oxide are combined to remove oxygen from the metal. At this time, the space occupied by the oxygen in the metal is changed into a hole so that the porous metal zeolite ('porous zeolite' is weak) Is generated). The water produced by the combination of oxygen and hydrogen is vaporized due to the temperature inside the reduction chamber.

At this time, when hydrogen gas is pressurized and injected into the oxide, the oxide is subjected to physical shock and pulverized into a small size. Therefore, as the oxide is crushed to a small particle size of nanoparticles, the oxygen in the initial oxide is reduced, thereby increasing the porosity.

On the other hand, when the particle size of the oxide is large, oxygen (O ₂ ) is supplied at a constant pressure before hydrogen gas is injected to crush and oxidize the oxide to a small particle size.

2. Cooling.

The inside of the reduction chamber 20 rises to a high temperature and the pressure increases due to the injection of hydrogen gas, and the porous zeolite powder rises on the structure of the reduction chamber 20 due to the temperature and the pressure difference.

A low temperature cooling zone is formed by the cooling water of the cooler 40 above the cooling zone forming network 21, and the porous zeolite powder rises and passes through the hole of the cooling zone forming network 21 and flows into the cooling zone. The porous zeolite powder passing through the cooling zone is cooled so as not to cause shape deformation, that is, the pores generated by reduction are kept intact. Of course, the material having a larger particle size than the hole of the cooling zone forming network 21 will fall below the cooling zone forming network 21 and be crushed to a small particle size by hydrogen gas.

3. Stabilized porous zeolite powder.

The stabilization chamber 50 is higher than the cooling zone temperature of the reduction chamber 20 and maintained at a temperature lower than the atmosphere, and the porous zeolite powder passing through the cooling zone is cooled and stabilized while passing through the stabilization chamber 50.

Therefore, the porous zeolite powder is stabilized to maintain the hole while passing through the cooling zone-stabilization chamber 50 so as not to cause destruction or the like due to rapid temperature change.

The cyclone may be connected to the stabilization chamber 50 to remove hydrogen gas, etc. introduced into the stabilization tank 50.

4. Antioxidant coating.

An antioxidant (fluorine) is sprayed onto the porous zeolite powder that has passed through the stabilization chamber 50 to coat the surface of the porous zeolite to form an antioxidant film.

Porous zeolite powder prepared through the above process is a primary product and can be used to produce a variety of secondary products, such as heat sinks, electrode plates of a secondary battery.

Heat sink manufacturing method using the porous zeolite powder of the present invention is as follows.

After the porous zeolite powder is put into a mold and pressed by a press, a heat sink can be manufactured by sintering. Here, the press compression conditions and the sintering temperature may be performed by those skilled in the art without being limited to specific values.

On the other hand, the porous zeolite powder has a specific gravity of the final product according to the starting material, if the specific gravity is difficult to collect, for example, paraffin may be used as a medium for collecting the porous zeolite powder. That is, when 3 to 5 parts by weight of paraffin is mixed with 100 parts by weight of the porous zeolite powder (when the amount is 3 parts by weight or less, it is difficult to collect the porous zeolite powder, and when the amount is 5 parts by weight or more), the specific gravity is determined by the paraffin. This small porous zeolite powder is collected and can be compressed by placing the porous zeolite powder and paraffin mixture in a mold. If the paraffins are mixed, the paraffins will be removed during sintering because the melting point is lower than the sintering temperature, thus creating holes where the paraffins were. Holes caused by paraffin do not affect the quality of the heat sink.

The electrode plate of the secondary battery using the porous zeolite powder according to the present invention can be produced by rolling or the like.

Claims

Chamber body for producing a porous zeolite powder by supplying hydrogen gas to the oxide to pulverize the oxide and by removing oxygen from the oxide by reduction to form a plurality of empty spaces occupied by oxygen in the oxide, wherein A reduction chamber 20 comprising one or more cooling zone forming networks 21 mounted inside the chamber body;

A heater (30) for applying heat to the reduction chamber to create an atmosphere in which oxygen is reduced in the oxide;

Cooling means installed in the periphery of the reduction chamber to cool the porous zeolite powder to maintain the porosity of the reduced porous zeolite powder in the reduction chamber;

Porous zeolite powder manufacturing apparatus comprising an antioxidant coating means for coating an antioxidant on the surface of the porous zeolite powder passing through the cooling means.
The method of claim 1, wherein the porous zeolite powder manufacturing apparatus characterized in that it comprises a stabilization chamber (50) for cooling and stabilize the secondary zeolite powder passing through the cooling means of the reduction chamber.
The apparatus of claim 1 or 2, wherein the reduction chamber is provided with a stirring screw therein or is rotatably disposed toward one side and rotatably installed through a rotating means.
Inserting an oxide into a reduction chamber and heating it to a melting point of the oxide to form a reducing atmosphere of the oxide;

In the first step, while heating the oxide, hydrogen is applied at a predetermined pressure to reduce oxygen in the oxide while pulverizing the oxide, thereby preparing a porous zeolite powder by forming a space occupied by the oxygen into an empty space. Step 2;

A third step of cooling the porous zeolite powder prepared through the second step to maintain porosity of the porous zeolite powder;

Method for producing a porous zeolite powder, characterized in that it comprises a fourth step of coating an antioxidant on the surface of the porous zeolite powder passed through the third step.
The method of claim 4, wherein in the first step, by applying oxygen to the reduction chamber while heating the oxide to make a small porosity zeolite powder through the second step by oxidizing the oxide small. Method for preparing porous zeolite powder.
Porous zeolite powder prepared by claim 1 or 5.
A heat sink comprising the porous zeolite powder according to claim 6 as a material.
An electrode plate for a battery, comprising a porous zeolite powder according to claim 6 as a material.