KR20020007260A - Apparatus and a manufacturing process of a solid detergent made of Mack Ban Seok - Google Patents

Abstract

PURPOSE: A silica-based rust inhibitor comprising elvan is capable of inhibiting scale deposition and corrosion on the inner surface of metal pipes by synergistic effects of each constituent of the rust inhibitor. CONSTITUTION: The silica-based rust inhibitor comprises 40wt.% of elvan (325mesh), 38wt.% of silica (purity 99.9%, 120mesh), 8wt.% of sodium carbonate anhydride, 6wt.% of sodium pyrophosphate anhydrous, 5wt.% of trisodium phosphate, 3wt.% of metasodium phosphate.

Description

Apparatus and a manufacturing process of a solid detergent made of Mack Ban Seok}

The present invention relates to a method for producing an elvan rock solid detergent used for corrosion, scale prevention and removal of a metal tube, and more particularly, to SiO ₂ , which is a main component (60 to 72%) of a component of porous and strong adsorbent elvan stone. The component, that is, the machanite silicic acid component, which forms an oxide hydroxide by dissolving silicic anhydride as alkali silicate by anhydrous sodium carbonate to form a strong rust-proof film on the metal surface.

Sodium carbonate and anhydrous sodium carbonate which changes the alkalinity of the elvan rock silicate so that a certain amount can be dissolved in water while reducing the oxide on the metal surface and purifying water by the complex chemical function of silicate and

Sodium triphosphate (Tribasic Sodium Phosphate), which inhibits the activation of ions by dispersing corrosion factors on the surface of the metal, which is dissolved in water and hydrolyzed to form pyrophosphate ions and soluble salts.

Sodium pyrophosphate, which forms complex salts with metal ions such as copper, iron, and magnesium to prevent activation of metal ions, and

When dissolved in water, sodium metaphosphate, which is alkaline in dispersibility and strong in activating ions, has strong washing and metal ion containment, and the composition is melted for about 12 hours using an electric furnace or a gas furnace at 1600 ° C. It is produced by molding in the form of a natural dry crystal 24 hours at room temperature by a molding machine

Corrosion, scale, etc. generated in the metal circulation pipes by the complementary action of the four major functions of elvan, and the general anti-rust method of silicic acid, sodium carbonate, sodium triphosphate, sodium pyrophosphate and sodium metasilicate, which are the main components of elvan The present invention relates to a metal tube cleaning agent which suppresses the occurrence of water and weakens and softens water to improve water quality.

For reference, if you look at the four major actions

1) Strong adsorption force function

It is a function of absorbing pollutants, harmful substances or odors in water by being decomposed into other substances by acting as a catalytic reaction between molecules due to its porosity and acting as (+) and (-) ions.

2) elution function of minerals

Function to prevent water decay by eluting minerals, one of the inevitable trace elements in the human body, by adsorbing and decomposing free chlorine, organic matter, and various bacteria in water.

3) Water quality control function

If iron, magnesium and fluorine are not contained in water, it elutes and if it is too large, it adsorbs and adjusts pH (hydrogen ion concentration).

4) Enrichment of dissolved oxygen in water

In general, the pipe supplying tap water is mainly made of metal or non-ferrous metal, and most of the pipes come into contact with or immersed in water. Metal pipes, such as water pipes or circulation pipes, are corroded or scaled on the surface in contact with water by various corrosion factors and oxidation, resulting in rust and purging of the pipes. Is not only shortening the service life of pipes and buildings, but it is also a major culprit that consumes energy rapidly and causes environmental pollution.

In addition, the water leakage is serious due to the cost of replacing the water supply pipe due to the corrosion of the pipe and the aging of the pipe.

In particular, in the case of a metal tube using tap water, the calcium carbonate component contained in the water was deposited on the metal surface to form a scale, thereby gradually preventing the supply of tap water and using it at home by drinking water.

As a way to solve this problem, various kinds of cleaning agents have been developed to prevent corrosion and scale of metal pipes, and the use of water supply cleaners in our country is nearly 20 years.

Until now, the cleaning agents for preventing corrosion include silicate-based sodium silicate, silicate detergents and phosphate-based phosphate detergents, and complex detergents. Phosphate-based detergents have anti-corrosive properties by chemical functions, but additional features of elvan are difficult to expect.

Phosphate-based metal pipe cleaners

· The effect is reduced by the ion concentration in the water

If the temperature rises, the rust inhibitor will be hydrolyzed and less effective.

· When used for nonferrous metals such as copper tube, anti-rust effect is inferior.

· Clean and anticorrosive purposes can be achieved to some extent, but there is a problem that lead is leaked due to corrosion of metal pipes.

· In case of overuse, serious human hazard.

· The government is gradually restricting the use of phosphorus because it can promote the reproduction of green algae and red algae in water.

In order to solve the above problems, in addition to the single chemical function of the silicate rust preventive agent has been developed a multi-functional elvan rock cleaning agent that can add the characteristics of the elvan rock.

The manufacturing process of the present invention was manufactured in two categories, considering the function and production cost.

First, the production method using only the silicic acid component of pure elvan (more than 60% purity)

Second, the production cost was considered by using a suitable amount of silicic acid component and general silica sand of elvan.

Manufacturing method using only silicic acid component of pure elvan

Elvanite (325mash powder SiO ₂ component 60% or more) 78% by weight

8% by weight of anhydrous sodium carbonate (Soda-ASH) plant additive

Sodium Pyrophsphate Food Additive 6% by weight

Tribasic Sodium Phosphate Food Additive 5%

Sodium metaphosphate food additive 3% by weight

Method for preparing and mixing an appropriate amount of silicic acid component and general silica sand of elvan

Elvanite (325mash powder SiO ₂ component 80% or more) 40% by weight

38 wt% of silica sand (purity 99.9% 120mash powder)

8% by weight of anhydrous sodium carbonate (Soda-ASH) plant additive

Sodium Pyrophosphate Food Additive 6% by weight

Tribasic Sodium Phosphate 5% by weight of food additives

Sodium metaphosphate food additive 3% by weight

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BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing an apparatus for producing elvan rock solid detergent of a metal tube using the elvan rock of the present invention.

※ Explanation of code about main part of drawing ※

10: iron remover 12: improver

14: stirrer 16: gas furnace or electric furnace

18: molding machine 20: grinder

22: checker 24: packing machine

In the manufacturing process of the present invention, the mixture is introduced into a mixing stirrer in units of 1,000 kg (the iron component is removed by a special iron removal machine). The mixture is uniformly mixed and then cooled at room temperature for 1 to 2 hours. .

The mixed composition was heated in a furnace for about 12 hours and melted to produce contents dissolved in a liquid phase.

The melted contents are taken out of the furnace and shaped into a constant crystal shape by a molding machine, and then naturally cooled for 24 hours.

The product is crushed to a certain size in the form of a crusher through the crusher, and only the products that pass the drinking water quality inspection standard of the Ministry of Environment are selected and packed in sterile and vacuum state in 10kg and 20kg units.

The melting furnace may be an electric furnace, a gas furnace, or an oil burner. However, in order to improve quality, it is preferable to use an electric furnace without pollution, and a temperature measuring instrument capable of measuring the furnace temperature is required.

In addition, the iron component should be removed through the de-iron removal device of the elvan to make a high quality detergent. Anhydrous sodium carbonate, sodium pyrophosphate, sodium triphosphate, sodium metaphosphate, etc. must be used only with food additives.

Looking at the role of the mixed composition

McManseok Silicate (SiO ₂ ) Silicate with atomic number 14, atomic weight 28.86, and siliceous component is decomposed into alkali silicate by chemical action of sodium carbonate, which is poorly soluble in water and constituent of water, to produce hydroxide dioxide. When the aqueous solution comes into contact with the metal surface, a thin and strong film of less than 1 μm is formed on the surface of the metal by molecular activity with electrochemical affinity, thereby preventing the contact of negative ions dissolving the metal, thus acting as a rust preventive method.

Elvanite Inclusion

Looking at the analysis of elvan rock by X-ray dilution, it is actually composed of 25000-30,000 porosity.

In addition, finely divided elvanite into 325mash (0.043mm) particles and observing the particles with an electron microscope shows that they are very porous, like coral reefs or sponges.

This porosity is closely related to the mineral elution, physical or chemically active adsorption, and ion exchange of elvan. When the elvan encounters water, minerals are eluted to hydrate and activate dissolved oxygen in the water. It has the property of being abundant, which makes it active in water and uses it to show good effects in food cooking or fish. In other words, the activation of water can be expected due to the special function of the elvan rock other than the anti-corrosive effect by SiO ₂ .

Sodium carbonate (SODA ASH) Na ₂ CO ₂ Molecular weight 105.99%, Specific gravity 2.53, Melting point 84.90 Sodium carbonate controls the amount of soluble in water according to the amount that converts insoluble silicate into alkaline which can decompose into water. It is hydrolyzed to show strong alkalinity, which reduces iron oxides on the metal surface to remove rust, and enhances water purification by complex chemical functions with silicates. Si ions in the elvan are combined with anions of organic substances in the water. It prevents adhesion to the surface and Na ions of anhydrous sodium carbonate enhances the anticorrosive effect by the charging metal ions in the water to suppress the electrical corrosion action with the metal surface.

Tribasic Sodium Phosphate

(Na ₄ PO ₄ .12H ₂ O) Molecular weight 380.12, Specific gravity 1.63. Melting point 75 ℃ Colorless or white crystals, soluble in water, showing strong alkalinity. Mostly hydrolyzed to produce pyrophosphate ions and soluble salts. Disperses and removes formal factors on metal surface by dispersing and soluble. It inhibits the activation of anticorrosive effect.

Sodium Pyrophosphate

(Na ₄ P ₂ O.10H ₂ O) Molecular weight 446.07, Specific gravity 1.82, Melting point 983 ℃ Soluble in water and alkalinity. It is also strong against thermal hydrolysis and is resistant to ions such as Cu ²⁺ , Fe ²⁺ and Ma ²⁺ . It has a strong ability to produce complex salts and inhibit the activation of ions. Therefore, by inhibiting or blocking the activity of the metal ions serves to prevent corrosion. Therefore, it is used for food, etc. to prevent oxidation, and must use food additives.

Sodium Meta Pyrophosphate P ₂ O ₅ Molecular weight 141.94 Soluble in water, alkaline and strong in dispersibility.

Therefore, the cleaning agent of the present invention smoothly removes scale or rust formed on the metal surface by synergistic action of the above-described different mixtures with respect to the elvan, and prevents corrosion of the corrosion factors by dispersing and ionizing these corrosion factors and forming a thin and strong film. This excellent, colorless, odorless and non-toxic safe and hygienic high quality multifunctional cleanser with the following characteristics:

1) Anti-corrosion effect is excellent by preventing contact of air or water by forming a film of 1㎛ on pipe or container inside.

2) Remove existing rust and preserve cleanliness inside the pipe.

3) Harmless to human body, odorless and nontoxic, suitable for drinking water system.

4) Great effect regardless of cold or hot water. Moreover, the higher the temperature, the better the effect.

5) The effect is absolute for non-ferrous metals such as copper and zinc.

6) Capture soft water such as Ma, Cu and soften water softly.

7) Activate dissolved oxygen.

8) Elutes minerals and improves water taste by adjusting pH.

9) There is no green algae or red tide due to the negative film phenomenon caused by phosphorus.

Hereinafter, the present invention is described in more detail by the following examples, but the composition of the present invention is not limited to the examples.

(Example)

The components shown in the following Tables 1-1 and 1-2 were correctly improved by the improver 12, and then mixed in an agitator 14 and evenly cured at room temperature for 1 to 2 hours, followed by an electric furnace or a gas furnace. The solution was completely dissolved at about 1600 ° C. for about 12 hours.

The completely dissolved liquid is placed in the molding machine 18 and dried at room temperature for 24 hours in a crystal shape. The dried crystal form composition is put into the crusher 20 and pulverized into a bulk of a certain size, and the sterile vacuum packaging is limited to the inspection pass product according to the Ministry of Environment drinking standard quality inspection standard.

Table 1-1

How to prepare using only pure elvan

TABLE 1-2

How to prepare a mixture using elvan and ordinary silica sand

Example 2

In Example 2, the detergent prepared in the same manner as above was tested. The iron pieces were tested and classified into phosphate-based cleaning system, the cleaning agent of the present invention, and tap water without the cleaning agent (Table 2-1), and secondly, the copper plate was tested by the same method (Table 2-2) to compare the effects.

Table 2-1

Table 2-2

Example 3

In this example, the corrosion test was performed on the non-ferrous metal that is corroded and scaled.

For reference, the unit corrosion (mg / cm 2 · hr) as a unit indicating

Corrosion rate (mg / cm 2 · hr) = Weight change (mg) / Cross-sectional area (cm 2) · Time (hr)

As described above, it was found that the cleaning agent of the present invention not only cleans the metal surface but also preserves it in its original state by antirust and anticorrosive action, and has excellent corrosion and descaling effect on nonferrous metals other than iron pieces.

Silicite-based cleaning agents using elvan are not only suitable for the gusset drinking regulations, but also the corrosion and scale formed on the metal surface by synergistic action of each mixed component under the theme of elvan and natural silica. Anticorrosive and anticorrosive action can be maintained by dispersing these corrosion factors, inhibiting ion activation and strong chemical film formation

Various metal pipes, circulation coolers, heating pipes, industrial pipes, etc. can be cleaned or rust prevented. When used as a colorless, odorless, and non-toxic hygienic cleaner, it does not elute metals such as lead, Harmless

In particular, it is an environmentally friendly, multi-functional, multi-purpose anti-corrosive agent that has no problem of environmental destruction because there is no hydrolysis or negative film phenomenon, and it can be expected to have a wide range of effects such as purifying and activating water by the unique function of elvan. have.

Claims (2)

For high-quality cleaning agent for pure elvan, only 78% by weight of ganmash 325mash powder, 8% by weight anhydrous sodium carbonate, 6% by weight sodium pyrophosphate, 5% by weight trisodium phosphate and 3% by weight sodium metaphosphate Dissolving the contents into an electric or gas furnace at 1600 ° C. and dissolving the molten contents out of the furnace and forming and cooling them to a predetermined size crystal shape. 40% by weight of ganmash 325mash, 38% by weight of silica sand (purity 99.9%, 120mash powder), 8% by weight of anhydrous sodium carbonate, 6% by weight of sodium pyrophosphate, 5% by weight of sodium phosphate , 3% by weight of sodium metaphosphate in a stirrer to mix evenly and dissolve the contents in an electric or gas furnace at 1600 ℃ And taking the melted contents out of the furnace and forming and cooling them into a crystal of a predetermined size.