JPH0585717A - Production of silica hydrosol without gelatification precipitation and device for water processing - Google Patents

Abstract

PURPOSE:To provide a production method of silica hydrosol by which a silica hydrosol with addition of water as the disperse medium does not gel to precipitate for a long period, and to provide a device for water processing to obtain water having high proton concn. to be used for the production method above described. CONSTITUTION:Energy is given to water in a water-processing device in which high energy such as electric field, UV ray, negative voltage, etc., is applied on water, so that water having high concn. proton can be produced by releasing electrons from hydrogen atoms. This water is added to acid silica sol containing 20% as SiO2 in the proportion almost equiv. so that protons are distributed around molecules of the silica colloid. Thereby, repulsion among silica colloid molecules can be maintained to prevent aggregation and gelatification.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a silicic acid hydrosol which does not cause gelation and precipitation, and more particularly, a silicic acid hydrosol for preventing cohesive gelation and precipitation of silicic acid colloid molecules by causing hydrogen protons to migrate around the silicic acid colloid molecules. And a water treatment device.

[0002]

2. Description of the Related Art Conventionally, as a method for producing a silicic acid sol, a method of mixing sulfuric acid with an aqueous solution of sodium silicate or adding silicon tetrachloride to water and mixing is known. Used for wax, etc. Further, as commercially available products, Snowtex manufactured by Nissan Chemical Industry, Ludox manufactured by Jupon, Siton manufactured by Monsanto Chemical, Nalco AG manufactured by Nalco, etc. are known, and the concentration of SiO ₂ is 15 to 5.
0%, particle size 7 to 40 mμ, pH 3.0 to 4.0, and acidic pH 8.0 to 9.5.

[0003]

The greatest drawback of the silicic acid hydrosol is that gelation progresses over time and precipitation occurs, which is a problem in stabilizing the quality. One of the causes of this gelation is that the salt contained in the silicic acid hydrosol promotes the siloxane bond. However, it is technically impossible to completely remove the sodium salt and the aluminum salt in the production process of the silicic acid sol.
₂ O is contained in an amount of 0.02 to 0.32%. Therefore, when other substances are added, further gelation occurs. In view of such an actual situation, the present invention adds water to which electrons have been released from hydrogen atoms in water to a silicic acid sol, and causes hydrogen protons to migrate between the silicic acid colloidal particles to cause repulsion between the silicic acid colloidal particles. With the aim of providing a method for producing a silicic acid hydrosol and a water treatment apparatus which have been successfully produced by electronically preventing gelation precipitation and have reached the present invention, gelation precipitation does not occur even when stored for a long period of time. It was developed.

[0004]

In order to solve the above-mentioned problems and to achieve the object, the present invention applies strong energy to water to emit electrons from hydrogen atoms of water to obtain a proton concentration of 2.5 to
Silica hydrosol which does not cause gelation and precipitation, which is composed of a step of producing a 4 proton-concentrated water having a pH of 4 and a step of adding the hydrogen proton-concentrated water obtained by the step to a silicate sol to cause the hydrogen protons to migrate around the silicic acid colloid particles. The technical means of manufacturing method was taken. The silicic acid sol has a SiO ₂ content of 15
-60 wt%, preferably around 20 wt% of acidic silicic acid sol is used.
3.0-4.0, SiO ₂ 20-21%, particle size 10
The use of 20 mμ) is preferred. The means for adding energy to release electrons from the hydrogen atoms of the water include (a) applying an electric field to the water, (b) irradiating the water with ultraviolet rays, and (c) applying a negative voltage to the water. There are 3 methods. In the hydrogen atom, one electron is attached to a nucleus, which is a proton, by attraction. Eight electrons are attached to the nucleus, which is an oxygen atom, by the attraction of electrons. In the water molecule, hydrogen electrons are bound to oxygen protons. In the present invention, by externally applying energy to the hydrogen atoms of water, the attractive force of the hydrogen protons is canceled and the electrons are separated and released.

As the water treatment device, (1) a water treatment device in which a water guiding pipe and a drain pipe are connected to a hollow core and an electromagnetic coil is attached to an outer peripheral portion of the hollow core, (2) a bottomed cylindrical body A means called a water treatment device is provided in which a water pipe and a drain pipe are connected to each other and an ultraviolet light source is arranged above the bottomed cylindrical body.

[0006]

In the present invention having the above-mentioned structure, electrons can be emitted from hydrogen atoms by applying strong energy to water molecules from the outside. As a result, the protons of hydrogen, which have been bound to oxygen via electrons, exist in a free state from the water molecules. That is, it becomes high-concentration hydrogen proton water. When the hydrogen-proton high-concentration water is added to and mixed with the silicic acid sol at a constant ratio, the electrically unstable hydrogen protons start to migrate around the silicic acid colloid molecules in an attempt to take in electrons from the silicic acid colloid molecules. As a result, hydrogen protons restrain each other, so that repulsion occurs between the silicic acid colloid molecules and aggregation does not easily occur, and gelation is prevented.

Further, as a water treatment device, a device utilizing an electric field generates a strong electric field (electric field) in the hollow core when water is passed through the hollow iron core to energize an electromagnetic coil. Hydrogen electrons overcome the attractive force of hydrogen protons, are separated, and are released, so that high-concentration hydrogen proton water is obtained. Further, in an apparatus utilizing ultraviolet rays, hydrogen electrons of water molecules absorb ultraviolet energy and overcome the attractive force of hydrogen protons to be separated and released, so that high concentration hydrogen proton water is obtained.

[0008]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a conceptual schematic diagram of a hydrogen atom in water, in which one electron is bound by attractive force around a hydrogen proton. FIG. 2 is a conceptual schematic diagram of an oxygen atom, in which eight electrons are bound to each other around an oxygen proton by attractive force. FIG. 3 is a conceptual schematic diagram of a water molecule in which hydrogen atoms are adsorbed and bonded to the electronic part by the attractive force of oxygen atoms. FIG. 4 is a conceptual schematic diagram of silicic acid, in which 14 electrons are bound around the silicon proton and 8 electrons are bound around the oxygen. The water used in the present invention may be ordinary tap water or distilled water, but when chlorine is contained, a known dechlorination treatment is performed in advance.

As a method of applying an electric field to water as the energy source, as shown in FIG. 5, the hollow iron core 2 of the processing apparatus 1 is used.
Attach the electromagnetic coil 3 around the
When a voltage of V is applied, an electromagnetic field is formed in the central part of the hollow core 2. Therefore, the water pipe 4 is inserted into the hollow core 2.
When water is poured from the inside, an electric field acts on the water in the hollow iron core 3, and electrons are emitted from the hydrogen atoms constituting the water molecules. The treated water is put into the filtration tank 5 to remove electrons. The filtration tank 5 is made of iron, and a filtration membrane (ceramic) through which electrons pass
5A are arranged in a partition and 1.8V, 0.5 in one chamber
An amp positive electrode 5B is provided. The positive electrode 5B
When electricity is applied to the electrons, the electrons pass through the filtration membrane 5A and move to the positive electrode 5B side, so that the electrons can be efficiently removed. In this way, the treated hydrogen proton-enriched water is taken out in the hydrogen proton concentration range of 2.5 to 4 pH. This concentration can be easily adjusted by adjusting the flow rate of water during treatment. As a standard, the flow rate in an iron core having a capacity of about 1 liter is about 0.1 liter per minute. In the water thus subjected to the electron emission treatment, hydrogen atoms (FIG. 1) in the water molecules (FIG. 3) lose electrons and hydrogen protons are separated from oxygen atoms. In this case, water exists in a form in which hydrogen protons are mixed with water molecules (H ₂ O). Commercially available silicic acid sol (Snowtex O = manufactured by Nissan Chemical Industry. Si
O ₂ concentration 20% by weight, pH 3.5, Fe 15 ppm, Al ₂
O ₃ 233ppm, Cl 5ppm, particle size 12.8mμ, moisture 8
0%) was added and mixed to form a silicic acid hydrosol. In this case, the amount of hydrogen-proton high-concentration water added to 100 parts of silicic acid sol was 10, 30, 50, 70 parts.
And 100 parts, and the hydrogen proton concentration is 2.
The graph shown in FIG. 6 is a comparison of the gelling endurance days for each of the three types, 5, 3.2 and 4. As can be seen from this figure, the larger the amount added, the more nearly proportionally the durability is excellent. On the other hand, FIG. 7 shows gelation durability when ordinary distilled water is added to silicic acid sol. According to this graph, gelation occurs in 10 days, and only the durability of 33 days is finally recognized even in the best case. Therefore, the method of the present invention having a durability of 300 days or more is significantly effective in preventing gelation. It is recognized that there is. This is because the hydrogen protons that have lost electrons migrate around the silicic acid colloid molecules (Fig. 4) in an attempt to take in the electrons from the silicic acid colloid molecules, and the hydrogen protons restrain each other from approaching each other. The silicic acid colloid molecules repel each other and do not aggregate.

When ultraviolet rays are used as the energy source, a known ultraviolet light bulb (black light) is used. UV rays are near UV rays on the longer wavelength side than around 3000 Å,
The short wavelength side from around 2000 Å is called extreme ultraviolet (also referred to as ultraviolet in a vacuum region), and a substance that absorbs ultraviolet causes dissociation or ionization phenomenon (photoelectric effect), and electrons are emitted. In the case of water, when it is irradiated with extreme ultraviolet rays, they are absorbed and electrons are emitted. Specifically, as shown in FIG. 8, a reflective layer 6B is formed on the inner wall of the cylindrical body 6 of the processing apparatus 1, and an ultraviolet light source (black light, wavelength 2000Å, 100
W) 7 is provided. Reference numeral 6A is a filter.
When water is injected into the tubular body 6 from the water pipe 4 and irradiated with ultraviolet rays, the ultraviolet rays are reflected by the reflection layer 6B and the ultraviolet rays can be effectively used. A hydrogen proton concentration of about 3.5 pH can be obtained at a flow rate of water of about 0.3 liters per minute in the cylindrical body 6. The concentration can be adjusted by adjusting the capacity of the cylinder 6 and the flow rate by adjusting the valve 4A. Other energy sources include arc lamps, thorium lamps, flash lamps, quartz mercury lamps, underwater spark discharges, hydrogen discharge lamps, xenon discharge lamps, helium discharge lamps and Lyman spark discharges. When the wavelength of ultraviolet rays is set to 2800 to 2540Å in this processing device, it can be used for sterilization and disinfection, and can be used for fish farming and water for hydroponics.

FIG. 9 shows a treatment device 1 for applying a negative voltage to water. The processing tank 8 is made of iron, and the negative electrode 8A is connected to it. A dialysis cylinder (ceramic) 9 that allows electrons to pass through is installed inside the treatment tank 8, and a positive electrode 10 is disposed in the dialysis cylinder 9. When a DC voltage of 2 V is applied to both electrodes, electrons are emitted from the hydrogen atoms of the negatively charged water, and the positive electrode 1
The electrons are attracted to 0 and move into the dialysis cylinder 9. Further, hydrogen protons in the dialysis cylinder 9 are attracted to the negative electrode and move to the outside of the dialysis cylinder 9. As a result, the water taken out from the treatment tank 8 becomes hydrogen proton high-concentration water. The hydrogen proton concentration becomes around pH 3.5 at a flow rate of about 0.1 liter per minute in the treatment tank, and the concentration can be adjusted by adjusting the flow rate.

As described above, the means for giving strong energy to water to emit electrons from hydrogen atoms may be selected from those practically easy to use, and the hydrogen proton concentration is 2.
A good effect can be obtained in the range of 5 to 4 pH. Further, a good effect can be obtained when the amount of hydrogen-proton high-concentration water added to the commercially available silicic acid sol containing 20% as SiO ₂ is in the range of 10% to 100%, but the salt contained in the commercially available silicic acid sol. It is necessary to neutralize
50% to 100% is preferable. The silicic acid hydrosol produced in this way is remarkably excellent in durability unless a salt is externally added.

[0013]

As described above, the present invention is a high concentration hydrogen proton water in which electrons are released from hydrogen atoms by applying strong energy to water as a dispersion medium for diluting a silicic acid sol into a silicic acid hydrosol. Therefore, hydrogen protons migrate to capture electrons from the silicic acid colloid molecules, and as a result, the hydrogen protons increase the repulsion between the silicic acid colloid molecules to prevent aggregation and prevent gelation for a long period of time.

Further, the water treatment device has a simple structure and can easily obtain hydrogen-proton high-concentration water, and since it is sterilized, it is also effective for producing fish culture, hydroponics water, and the like.

[Brief description of drawings]

FIG. 1 is a conceptual schematic diagram of a hydrogen atom.

FIG. 2 is a conceptual schematic diagram of an oxygen atom.

FIG. 3 is a conceptual schematic diagram of water molecules.

FIG. 4 is a conceptual schematic diagram of a silicic acid molecule.

FIG. 5 is a vertical cross-sectional front view of a processing device that applies an electric field to water.

FIG. 6 is a graph showing gelation durability of silicic acid hydrosol produced by the method of the present invention.

FIG. 7 is a graph showing gelation durability of silicic acid hydrosol by a conventional method.

FIG. 8 is a vertical cross-sectional front view of a processing device that irradiates water with ultraviolet rays.

FIG. 9 is a vertical cross-sectional front view of a processing device that applies a negative voltage to water.

[Explanation of symbols]

 1 treatment device 2 hollow iron core 3 electromagnetic coil 4 water pipe 4A valve 5 filtration tank 5A filtration membrane 5B negative electrode 6 cylinder 6A reflective layer 6B filter 7 ultraviolet light source 8 treatment tank 8A negative electrode 9 dialysis cylinder 10 positive electrode

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[Procedure amendment]

[Submission date] September 14, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Title of invention

[Correction method] Change

[Correction content]

Title: Method for producing silicic acid hydrosol that does not gel and precipitate and water treatment apparatus

Claims (3)

[Claims] 1. An external energy is applied to water to cause an electron to be emitted from a hydrogen atom to form hydrogen-proton high-concentration water, and the hydrogen-proton high-concentration water is added to and mixed with a silicic acid sol so that the water is surrounded by silicic acid colloid molecules. A method for producing a silicic acid hydrosol that does not cause gelation and precipitation, characterized in that hydrogen protons are allowed to migrate to sustain repulsion between silicic acid colloid molecules. 2. A water treatment apparatus comprising a hollow core, a water guide pipe and a drain pipe connected to the hollow core, and an electromagnetic coil attached to the outer periphery of the hollow core. 3. A water treatment apparatus characterized in that a water guiding pipe and a drain pipe are connected to a bottomed tubular body and an ultraviolet light source is disposed above the bottomed tubular body.