KR20020093653A - Bentonite and zeolite and illite of molding - Google Patents

Abstract

PURPOSE: Provided is a method for forming zeolite, illite and bentonite, raw materials for bricks, tiles and pottery, without the addition of water and binder. Therefore, the compacts excluding water and air have no transformation and low water absorption. CONSTITUTION: The dry forming of powder materials is characterized by mixing 10-30wt.% of zeolite(800-1000mesh) for sterilization and deodorization with 10-30wt.% of illite(50-1000mesh), adding 40-70wt.%of bentonite, and pressing the mixed powder under pressure of 170-200kg/cm¬2. Also, the powder materials containing kaolin or yellow soil are mixed and pressed for compacts with less than 10% of water content.

Description

Forming Zeolite, Illite and Bentonite {BENTONITE AND ZEOLITE AND ILLITE OF MOLDING}

Conventionally, in order to obtain a molded shape of zeolite or illite, it is mixed with cement or mixed with epoxy to be shaped.

However, this method has a problem of making zeolites or illites unable to exhibit their proper properties.

Cement or epoxy coated fine pores of zeolite or illite

Or epoxy deteriorates the function of zeolites or elites and causes chemical changes.

Also.

In addition, natural zeolites or elites were mixed with water, kneaded and shaped, and dried and then calcined to high temperature for shaping.

However, since this method uses water, the inevitable drying process is followed, and the equipment and space required for the drying process are large manufacturing costs.

In addition, the shrinkage during drying and the space left in the place of the water molecules that escaped were a factor in weakening the binding force, and as a result, a molded article having a high water absorption rate could be produced.

The technical problem that the present invention is achieved

1. Providing dry molding technology that does not require a drying process, it provides an appropriate blending ratio that can be used in the manufacture of materials such as bricks, tiles and ceramics.

2. The purpose of this study is to identify and provide molding pressure that can produce molded products with little moisture absorption even if it is completely deformed and fired at low temperature without deformation.

In the present invention, the main component is elite zeolite (fluorite) bentonite (clay clay), and the characteristics of each material are as follows.

1. Illite

Illite is a very rare soft mica mineral that emits up to 93% of far infrared rays.

Illite is a fine clay-shaped mica found in sedimentary rock layers from the ILLINOIS region of the United States.

The first name was given, and when you look at the distribution worldwide, you'll see Canada Quiback, Illinois,

It is somewhat distributed in Pennsylvania, Sichuan, China and Australia, and is produced in Chungbuk Yeongdong in Korea.

Particle size is very fine clay of 1 ~ 2㎛ or less, usually light gray colored.

The composition of Chungbuk Yeongdong Illite consists of SiO2> Al2O3> K20> Fe2O3. In general, it contains a small amount of K, has a large number of crystals, and has a structural structure between Momtmorillonite and Muscovite.

There is no spontaneous chemical reaction due to the nature of natural inorganic nonmetallic minerals and insoluble in water, organic solvents, acids and alkalis.

Illite is a dual action that emits far-infrared rays, and is excellent in absorbing heavy metals, organic ions and odors in water.

It is used as various water purifiers because of its nature.

It is used as a deodorant for refrigerators and barns by removing various toxic gases, odors and bacteriostatic effects (removing viruses and bacteria).

2.zeolite

Since Wuxi has high selective ion exchange capacity, it is ideally suited for use by exchange capacity such as nuclear waste treatment and metallurgical waste treatment.

ㅇ Aquaculture

One of the major problems affecting fish in water in artificial farming is the sudden increase in ammonia concentrations that can directly affect the survival of fish. Studies have shown that even small amounts of ammonium ions can be fatal to fish, causing gill disease, poor development, brain disease, and infertility, and eventually death. Stones, especially Clinoptilolite and Mordenite, can remove 97-99% of ammonia from water dissolved in 0.3 mg / L ammonia.

ㅇ Deodorization

Fossil is widely used as a deodorant of various kinds, such as feces treatment of cats and removal of shoe odors. This efficacy is due to the fluoride cation exchange capacity and the selective ion exchange capacity for ammonium ions. In addition, fluorite is used to treat the feces of pets, chickens, beef cattle, pigs, and horses. If you use fluorite to remove the excrement of pets in your house, it removes about 4 times of ammonia than commonly used clay, generates less dust, and is easier to use after use.

ㅇ Animal feed added

The livestock feed sector is the highest growth sector using fluorite. As the world's population grows rapidly, farmers in developed and developing countries are working hard to increase the efficiency of their work. In the future, fluoride can improve efficiency in two ways: fertilizer additives, soil improvers, or animal feed supplies. In the mid-1960s, experiments using montmorillonite in livestock feed revealed that clay could increase calorie efficiency by slowing down digestion in livestock digestive systems.

ㅇ For soil improvement

Fossil has been used for many years for soil improvement because of its ion exchange capacity and water-gathering properties. The high ammonia adsorption of clinoptilolite slows the release of ammonia, which helps to fix nitrogen in the soil by increasing the ion exchange capacity. In fact, 40 tons per acre of clinoptilolite in Japan increased the nitrogen efficiency by about 63%.

ㅇ Adsorption of water

Although fluorite is not widely used despite its high hydrophilicity, its ability to adsorb water molecules without damaging the crystal structure will become increasingly important. The simplest use of this property is drying and dehydration. Fossil is especially useful for controlling humidity in low conditions. It also has a unique property of absorbing and releasing water and is therefore beginning to be used as a heat exchanger. It has been found that spraying one tonne of fluoride on 200 ft2 purifies one tonne of air, and the heat adsorption isotherm of fluorite is more than 50% more efficient than solvent materials.

ㅇ Gas adsorption

When natural gas is contaminated with carbon dioxide, it is called "sour". In the United States, chabazite is L.A. 25% of CO2, H2S and H2O were successfully removed from the gas wells in the area. In terms of recycled materials, fluoride is also used to purify methane collected from landfills. This gas consists of about 40% CO2, moisture, hydrogen sulfide and the like. Impurities such as water and hydrogen sulfide are preferentially removed prior to passing through adsorbers filled with fluorite. Despite the fact that methane gas is generated in landfills, the presence of CO2 is hindering the use of methane gas for energy. However, landfills can be an important source of energy by using fluoride to purify emissions and increase fuel gas content. That is, the total amount of methane that can be collected in municipal waste disposal plants, landfills, and animal waste is huge. Another environmental problem solved by the use of fossils is the purification of flue gas.

ㅇ Other

In addition, fluorite is used as a lightweight agent for cement and concrete. The clinoptilolite foams when heated to 1,200 to 1,400 ° C, expands to a density of 0.8 g / cm3 and increases porosity to 65%. The fluorite shows greater strength and wear even at 760 ° C. Fossil is also used as a building stone.

3. Bentonite

end. main purpose

Bentonite's main uses include drilling and drilling, iron ore pelletizing, binders, mold materials, humectants, refining, filtration, discoloration, agriculture, civil engineering, etc., as well as additives for adhesives and carriers for catalysts for oil refining. It is used as additives in the manufacture of paints and papers, as well as cosmetics, cement additives and ointments, and powder treatments.

ㅇ Hygroscopic

Bentonite is used as an industrial moisture absorbent, a pet breeding rug, and a desiccant.

ㅇ Purification, filtration and bleaching

Active clay is widely used for the purification of fats and oils obtained from plants, animals or minerals.

ㅇ For agriculture

Bentonite is used for molding fertilizers, carriers for insecticides, soil improvers, seed coatings, feed additives and feed molding. In the United States and South America, Ca-bentonite, Na-bentonite, attapulgite, and sepiolite are used to aggregate and assemble livestock feed.

ㅇ Civil and construction

Since the 1950s, bentonite-added slurries have been used for lining of boreholes. Bentonite is also used for building foundation engineering, grouting, friction reducers, pond closure, irrigation canals, and tunnel excavation.

ㅇ Other uses

Ca-bentonite and Na-bentonite, acidic clay and attapulgite are used as additives for adhesives. Used as additives in the manufacture of solvents, paints and paper.

※ Source: Resource Review, 2001 * cec: cathode exchange capability

The zeolite (fluorite) illite bentonite (clay clay) listed above is mixed for each use and then dried to remove moisture, and then the mixed powder in dry powder is filled into a mold of a predetermined standard, and 200 kg / cubic centimeter. Applying a pressure of cm 2 results in a very dense and rigid molded article.

This molded product has the function of exhibiting the unique characteristics of each material.

The present invention allows to omit the step of mixing and kneading and drying the bricks and tiles and the shape of ceramics or porcelains with existing water kneaded with water during the manufacturing process and the drying of the special functional materials such as zeolite or illite. Functionality that can realize perfect performance by enabling molding without adding compound or binder during molding

It is possible to manufacture bricks and tiles.

Claims (2)

In the formulation of powder molding materials not kneaded with water, mix 800-1000 mesh zeolite and 500-1000 mesh illite in 10-30% weight ratio, respectively, for the purpose of antibacterial and deodorization. Mixing in the range of -40% to give a pressure of 170 ~ 200kg / ㎠ to shape the powder The method according to claim 1, in order to absorb moisture in the atmosphere or to add a small amount of water less than 5% by weight and to improve the physical properties of the material, kaolin or ocher High-pressure molding after mixing, and having bricks and tiles or porcelain or ceramics molded with a water content of less than 10%.