Industrial use zeolite

1、 Clinoptilolite

Clinoptilolite in the compact structure of rock is mostly in the micro shape of radial plate assembly, while in the place where the pores are developed, plate crystals with intact or partially intact geometric shape can be formed, which can be up to 20mm wide and 5mm thick, with an angle of about 120 degrees at the end, and some of them are in the shape of diamond plates and strips. The EDX spectrum consists of Si, Al, Na, K, and Ca.

2、 Mordenite

The SEM characteristic microstructure is fibrous, with a filamentous straight or slightly curved shape, with a diameter of about 0.2mm and a length of several mm. It can be an authigenic mineral, but it can also be seen on the outer edge of altered minerals, gradually separating into filamentous zeolite in a radial shape. This type of zeolite should be a modified mineral. The EDX spectrum is mainly composed of Si, Al, Ca, and Na.

3、 Calcite

The SEM characteristic microstructure consists of tetragonal triaoctahedra and various polymorphs, with crystal planes mostly appearing as 4 or 6 sided shapes. The grain size can reach several tens of mm. The EDX spectrum features elements of Si, Al, Na, and may contain a small amount of Ca.

zeolite

There are many types, and 36 have already been discovered. Their common feature is that they have a scaffold like structure, which means that within their crystals, molecules are connected together like a scaffold, forming many cavities in the middle. Because there are still many water molecules in these cavities, they are hydrated minerals. These moisture will be discharged when exposed to high temperatures, such as when burned with flames, most zeolites will expand and foam, as if boiling. The name zeolite comes from this. Different zeolites have different forms, such as zeolite and zeolite, which are generally axial crystals, zeolite and zeolite, which are plate-like, and zeolite, which are needle like or fibrous. If various zeolites are pure inside, they should be colorless or white, but if other impurities are mixed inside, they will show various light colors. Zeolite also has a glassy luster. We know that water in zeolite can escape, but this does not damage the crystal structure inside the zeolite. Therefore, it can also reabsorb water or other liquids. So, this has also become a characteristic of people using zeolite. We can use zeolite to separate some substances produced during refining, which can make the air dry, adsorb certain pollutants, purify and dry alcohol, and so on.

Zeolite has properties such as adsorption, ion exchange, catalysis, acid and heat resistance, and is widely used as an adsorbent, ion exchange agent, and catalyst. It can also be used in gas drying, purification, and wastewater treatment. Zeolite also has nutritional value. Adding 5% zeolite powder to feed can accelerate the growth of poultry and livestock, make them strong and fresh, and have a high egg production rate.

Due to the porous silicate properties of zeolite, there is a certain amount of air in the small pores, which is often used to prevent boiling. During heating, the air inside the small hole escapes, acting as a gasification nucleus, and small bubbles are easily formed at their edges and corners.

In aquaculture

1. As a feed additive for fish, shrimp, and crabs. Zeolite contains various constant and trace elements necessary for the growth and development of fish, shrimp, and crabs. These elements mostly exist in exchangeable ion states and soluble salt forms, which are easily absorbed and utilized. At the same time, they also have various catalytic effects of biological enzymes. Therefore, the application of zeolite in fish, shrimp, and crab feed has the effects of promoting metabolism, promoting growth, enhancing disease resistance, improving survival rate, regulating animal body fluids and osmotic pressure, maintaining acid-base balance, purifying water quality, and having a certain degree of anti mold effect. The amount of zeolite powder used in fish, shrimp, and crab feed is generally between 3% and 5%.

2. As a water quality treatment agent. Zeolite has unique adsorption, screening, exchange of cations and anions, and catalytic performance due to its numerous pore sizes, uniform tubular pores, and large internal surface area pores. It can absorb ammonia nitrogen, organic matter, and heavy metal ions in water, effectively reduce the toxicity of hydrogen sulfide at the bottom of the pool, regulate pH value, increase dissolved oxygen in water, provide sufficient carbon for the growth of phytoplankton, improve the intensity of water photosynthesis, and is also a good trace element fertilizer. Each kilogram of zeolite applied to the fishing pond can bring in 200 milliliters of oxygen, which is slowly released in the form of microbubbles to prevent water quality deterioration and fish from floating. When using zeolite powder as a water quality improver, the dosage should be applied at a water depth of one meter per acre, plus about 13 kilograms, and sprinkled throughout the entire pool.

3. Use as materials for constructing fishing ponds. Zeolite has many pores inside and extremely strong adsorption capacity. When repairing fishing ponds, people abandon the traditional habit of using yellow sand to lay the bottom of the pond. Instead, yellow sand is laid on the bottom layer, and boiling stones with the ability to exchange anions and cations and adsorb harmful substances in the water are scattered on the top layer. This can keep the color of the fishing pond green or yellow green all year round, promote the rapid and healthy growth of fish, and improve the economic benefits of aquaculture.