HotNews

Light burnt magnesia powder is an important refractory [ 2021-07-12 ]

Light-fired magnesia powder is a kind of raw material with medium basicity and chemical activity. In addition to being used as refractory and cementitious material, light-fired magnesia powder is also used in other industrial fields. In addition, the development of slag splashing technology for converter protection further expands the application scope of light burning magnesia powder. At present, the slag splashing technology mostly uses light-burned magnesia powder as pellets, such as light-burned magnesia powder pellets, carbon-containing light-burned magnesia pellets and carbon-containing calcium-containing light-burned magnesia powder pellets.

Magnesium oxide and light burnt powder have their respective roles [ 2021-07-12 ]

"Light burning powder" is a product of natural magnesite or brucite lightly burned at about 900 C. It is commonly known as light burning powder. Magnesium oxide is the main chemical composition of light burning powder. Magnesium oxide in general sense refers to magnesium oxide produced by chemical method. Magnesium carbonate or magnesium hydroxide is produced by chemical method using magnesium-containing raw materials, and magnesium oxide is obtained by calcination. Therefore, the so-called magnesia, in general, is the purity, particle size, and other indicators and light-burned powder have significant differences.

Misconceptions about Light Burning Powder [ 2021-07-12 ]

MiconceptionsaboutLightBurningPowderManypeoplehavemisunderstoodsometruth.1.Magnesiumoxidecontentandactivityinacertainrangeisproportionaltotheamountoflightburningpowder,infact,thereisnosuchstrictorreli

Introduction of Light Burning Powder [ 2021-07-12 ]

As magnesite is generally reduced by about 50%, the content of MgO in ores can be almost doubled by light burning. In this sense, light burning of magnesia is the most effective means of MgO enrichment. In addition, light burning is also a preparatory operation for thermal separation and some gravity separation of magnesite. Light burning of magnesia has high activity and is an ideal raw material for producing high bulk density magnesia.

Current Situation and Development Trend of Refractories Industry [ 2021-07-12 ]

Refractories generally refer to inorganic non-metallic materials with refractory degree above 1580 C, including natural ores (refractory raw materials) and various products (refractory products) processed according to a certain process flow according to certain purposes and requirements, which have certain high temperature mechanical properties and good volume stability. Refractories are important basic materials related to high temperature industry, such as iron and steel, non-ferrous metals, petrochemical, building materials, machinery, electricity, environmental protection and national defense.

Introduction of Magnesium Oxide [ 2021-07-12 ]

Magnesium oxide (chemical formula: MgO) is an oxide of magnesium, an ionic compound. It is a white solid at room temperature. Light-burned magnesia and magnesia exist in nature in the form of periclase, which is the raw material for magnesium smelting.

Light Burning Powder to Fuel Overall Revitalization [ 2021-07-12 ]

Resources and Exploitation of Magnesium Raw Materials Magnesium raw materials refer to magnesium-containing minerals which can be used to produce magnesia refractories, magnesia chemical materials, metal magnesium and other products. They are mainly divided into solid minerals such as magnesite, dolomite, brucite and liquid minerals such as sea water and Salt Lake brine. Magnesite is one of the most important refractory materials in the world. It is mainly used for calcining light-burned magnesia (CCM), sintered magnesia (DBM), fused magnesia (FM) and other refractory materials. It is the basic material for producing magnesia refractories.

Light Burning Powder to Fuel Overall Revitalization [ 2021-07-12 ]

Magnesium raw materials refer to magnesium-containing minerals which can be used to produce magnesia refractories, magnesia chemical materials, metal magnesium and other products. They are mainly divided into solid minerals such as magnesite, dolomite, brucite and liquid minerals such as sea water and Salt Lake brine. Magnesite is one of the most important refractory materials in the world. It is mainly used for calcining light-burned magnesia (CCM), sintered magnesia (DBM), fused magnesia (FM) and other refractory materials. It is the basic material for producing magnesia refractories.

How to detect the activity of magnesium oxide? [ 2021-07-12 ]

Magnesium oxide is widely used in daily life. Light burning powder plays a vital role in the production of some raw materials in industry. It is necessary to test the activity of magnesium oxide when purchasing magnesium oxide. For raw materials, if the activity of magnesium oxide is not enough, it will easily lead to the quality of materials not up to the standard, so its activity is very high. Important, then how to test it? Xiaobian will give you an introduction. Taking magnesium oxide for adhesive as an example, I would like to explain it to you. I hope it will be helpful to you.

Production Advantages of Light Magnesium Oxide [ 2021-07-12 ]

Light burnt magnesium oxide contains three kinds of substances: underburned, overburned and activated magnesium oxide. 1: The so-called underfired products are part of magnesium carbonate which does not form magnesium oxide. (Controlling the setting speed of magnesite products mainly depends on the amount of underfired products;) If there are more underfired products, the burning vector will be higher, and the setting speed of magnesite products made is very fast, which will cause the bursting and deformation of magnesite products.

Light burnt magnesia powder is an important refractory

Categories:Company news
Author:
Origin:
Time of issue:2021-07-12
Views:0

(Summary description)Light-fired magnesia powder is a kind of raw material with medium basicity and chemical activity. In addition to being used as refractory and cementitious material, light-fired magnesia powder is also used in other industrial fields. In addition, the development of slag splashing technology for converter protection further expands the application scope of light burning magnesia powder. At present, the slag splashing technology mostly uses light-burned magnesia powder as pellets, such as light-burned magnesia powder pellets, carbon-containing light-burned magnesia pellets and carbon-containing calcium-containing light-burned magnesia powder pellets.





Light burnt magnesia powder is an important refractory

Categories:Company news
Author:
Origin:
Time of issue:2021-07-12
Views:0

Information

Light-burned magnesia powder, referred to as light-burned magnesia powder, is a kind of active magnesia obtained by calcining magnesite, brucite and magnesium hydroxide extracted from seawater or brine at about 800-1000 C. Light-burned magnesia powder is a light yellow and light brown powder. Its particle size is mostly below 100 mesh. Its crystal density is 3.07-3.22g/cm3. It has large lattice constant, many lattice defects, brittle texture, porous structure and high reactivity. It is easy to react with water to form Mg(OH)2 and harden. It has bonding energy. Power.

Selection of calcination method and control of light-burning temperature are important means to obtain good activity. With the increase of calcination temperature, the specific surface area of MgO decreases significantly. The recrystallization rate of MgO increases, the dispersion decreases sharply and the activity decreases when the temperature is higher than 1000 C. Different calcination methods and equipment at the same temperature are also important factors affecting MgO activity. If calcined in fluidized bed furnace and suspension furnace, it can decompose rapidly in an instant, and the lightly burned magnesia powder with the greatest activity can be obtained. Using tunnel kiln and reflective kiln as large blocks, the calcination time is long, and the surface is often overburned while the interior is burned, which will reduce the activity of light-burned magnesia powder. The calcination of granular magnesite in rotary kiln is between the two conditions, and the light-burned magnesia powder can also be obtained to maintain better activity.

Keyword: