Widely Used In Catalysts, Rubber Fillers, Flame Retardants For Building Materials Magnesium Oxide

Magnesium oxide is an inorganic substance with multiple functions and is widely used in different fields.

Magnesium oxide is MgO, which has high melting point and boiling point and is insoluble in water. Nano magnesium oxide is used in many fields such as catalysis, adsorption, ceramics, etc. The preparation methods include brine-lime method, brine-ammonia method, magnesia-hydrochloric acid-ammonia method, and magnesium carbonate calcination method, which require control of raw materials, reaction conditions, equipment, and environmental protection.

Specification Parameters (Table)

Basic properties

Chemical formula and molecular structure: The chemical formula is MgO, which is composed of Mg²⁺ ions and O²⁻ ions bonded together by ionic bonds to form a lattice.

Physical state and appearance: It is a white solid at room temperature, usually in the form of white powder or crystals.

Physical properties: It has no taste and is non-toxic. It has a high melting point (2852℃) and a high boiling point (3600℃). It has a moderate density (3.58g/cm³, 25℃). It is insoluble in water and ethanol, but its solubility in water increases with increasing temperature.

Chemical properties: It is an alkaline oxide and has the general properties of alkaline oxides. When exposed to air, it easily absorbs moisture and carbon dioxide. It is soluble in acid and ammonium salt solutions.

Application Areas

①Catalysis field

Nano-magnesium oxide has a high specific surface area and activity, and can be used as a catalyst or catalyst carrier to accelerate various chemical reactions such as oxidation, hydrogenation, and esterification. In industries such as chemical industry, petroleum processing and environmental purification, the application of nano magnesium oxide as a catalyst is particularly prominent, which can significantly improve reaction efficiency and product purity.

② Adsorbent

Due to its high specific surface area and good adsorption properties, nano magnesium oxide can adsorb harmful substances such as heavy metal ions and organic pollutants in wastewater. This property makes nano magnesium oxide have broad application prospects in water treatment and air purification, which helps to protect the environment and human health.

③Functional ceramics

Adding magnesium oxide to ceramic manufacturing can significantly improve the material's mechanical strength, heat resistance, and density. Therefore, nano magnesium oxide is widely used in high-temperature structural parts, electronic ceramic components, refractory materials and insulating materials. In addition, nano-magnesium oxide can also be used to prepare high-performance ceramic materials such as ceramic capacitor dielectric materials and nano-ceramic powders.

④ Biomedicine

Nano-magnesium oxide also has important applications in the biomedical field due to its biocompatibility and degradability. It can be used to prepare bioceramics and drug delivery system materials.

⑤Electronics and Information Technology

In electronic devices, nano-magnesium oxide can be used as dielectric materials, fillers for high-frequency magnetic rod antennas, insulating materials, and components of solar cells. These applications can improve the performance and stability of devices and meet the demand for high-performance materials in the fields of modern electronics and information technology.

⑥Chemical fiber and plastic industry

Nano magnesium oxide is used as a flame retardant to improve the flame retardant properties of polymer materials while maintaining the physical and mechanical properties of the materials. In the chemical fiber and plastic industries, the addition of nano magnesium oxide can significantly improve the safety and service life of products.

⑦Textiles and coatings

Adding magnesium oxide to textile finishing and coating formulations can improve the product's heat resistance and UV resistance. These performance improvements make nano-magnesium oxide widely used in the textile and coating industries.

⑧Steelmaking and Metallurgy

In the production of silicon steel sheets, nano magnesium oxide is used as a high-temperature dehydrating agent to optimize the properties of the metal. In addition, nano magnesium oxide can also be used as an additive in the steelmaking process to improve the quality and performance of steel.

⑨Other fields

In addition to the above-mentioned fields, nano magnesium oxide can also be used to prepare high-performance flame-retardant fibers, fuel additives, detergents, etc. In addition, nano magnesium oxide can also be used as an electrical insulator material, to manufacture crucibles, furnaces, insulating pipes, etc. Preparation method of magnesium oxide

Characteristics

1. Strong Chemical Stability: It maintains its chemical stability at high temperatures and is resistant to decomposition or deterioration.
2. Non-toxic and Harmless: It is non-toxic and harmless to humans and the environment, without generating harmful substances during use.
3. Renewable: It is a renewable resource that can be recycled through natural reactions.
4. High Insulation: It exhibits excellent insulating properties, suitable for the electronics industry.

Advantages

1. Enhanced Product Performance: Used in building materials such as glass and ceramics, it improves product quality and performance.
2. Environmental Applications: It can be used in wastewater treatment, flue gas desulfurization, and soil remediation, contributing to environmental protection.
3. Biomedical Applications: In the medical field, magnesium oxide serves as an antacid ingredient to relieve discomfort caused by excessive stomach acid secretion.

Application Fields

1. Industrial Applications: Used in the manufacture of fireproof boards, fireproof coatings, refractory bricks, and other fireproof materials, as well as catalysts, desiccants, and adsorbents.
2. Agriculture and Chemical Industry: Used in the production of fertilizers, pesticides, and dyes, enhancing product quality and performance.
3. Electronic Components: As a packaging material for electronic components, it improves their stability and reliability.
4. Biomedicine: Used in the manufacture of artificial bones, teeth, and other medical devices, with good biocompatibility and antibacterial properties.

Production Techniques

Magnesium oxide can be produced through various methods, including the carbonation process, calcination of magnesium hydroxide, soda ash process, and ammonium bicarbonate process. The choice of method often depends on the specific needs and characteristics of downstream industries. For example, the carbonation process can produce lightweight magnesium oxide, while the calcination of magnesium hydroxide can produce high-purity magnesium oxide.

Theory (Background)

Magnesium oxide consists of Mg²⁺ ions and O²⁻ ions bound together through ionic bonds to form a crystal lattice. At high temperatures, magnesium oxide exhibits excellent physical and chemical stability, making it a model system for studying crystal vibration characteristics. Additionally, magnesium oxide is widely regarded as the most effective metal stabilizer compared to silicate cement, lime, and others due to its superior buffering capacity, cost-effectiveness, and ease/safety of operation.

Services

Magnesium oxide enterprises should establish an application technology department with professional technical service personnel. These personnel should possess extensive knowledge and experience in production processes, technology, and magnesium oxide applications, enabling them to provide professional technical support and solutions to customers.

Packaging and Storage

Magnesium oxide should be stored in a cool, well-ventilated warehouse, avoiding direct sunlight and high temperatures. The warehouse should be kept away from fire sources and heat to prevent magnesium oxide from undergoing chemical reactions or fires due to high temperatures. The packaging of magnesium oxide should be intact to prevent leakage, damage, or dropping during transportation. According to the HG/T 2573-2012 standard, the packaging of industrial light magnesium oxide must comply with specific regulations.

Preventive Measures

1. Industrial Protection: Operators should wear appropriate personal protective equipment, such as dust masks, chemical safety goggles, breathable work clothes, and rubber gloves, during industrial use.
2. Medical Monitoring: When using magnesium oxide preparations in the medical field, they should be used as prescribed by a doctor to avoid long-term or excessive use, which may cause harm to the human body.
3. Environmental Monitoring: During storage and transportation, clear emergency response plans should be in place to address potential leaks or other emergencie