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Hydration bonding is generated by hydration reaction of binder and water at room temperature to produce hydration products. Chemical bonding of calcined magnesia is achieved by chemical reaction between binder and hardener, or between binder and refractory at room temperature, or chemical reaction during heating to produce compound with bonding effect. Polymerization is combined by adding catalyst or cross-linking agent to
Published on: April 30, 2021 Clicks: 28
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The market competition risk of the binder industry for light burned magnesium powder can be divided into market, price risk and operation risk. The first demand risk is that demand is the key factor affecting the sales of binders for refractory materials. The size of demand is relative to the supply volume. If supply increases, demand decreases, and magnesia is burned again, the sales will encounter difficulties; The second is price risk, which refers to the binder products for refractory materials
Published on: January 28, 2021 Clicks: 44
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What is magnesia? Heavy burned magnesia magnesia is calcined from magnesite, bischofite or magnesium hydroxide extracted from seawater at high temperature. It is a general term for the products of magnesite and other magnesia raw materials that have been treated at high temperature to reach the sintering process. Magnesium produced from natural magnesite by one-step or two-step calcination process with high-temperature equipment such as shaft kiln and rotary kiln
Published on: October 14, 2020 Number of hits: 66
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Magnesia manufacturers introduce that magnesia can be divided into natural magnesia, seawater magnesia or synthetic magnesia. Natural magnesium oxide mainly comes from natural magnesite, which is calcined magnesite. However, due to the quality of raw ore, it is difficult to obtain high-purity and high-quality products. So far, seawater magnesium oxide has become the main source of magnesium oxide used in industrialized countries. The theoretical content of MgO in magnesite is 47
Published on: February 12, 2020 Number of hits: 33
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The calcination of magnesite at a high temperature of 750 to 1100 is called "light calcination", and the product obtained is called light calcined magnesite powder, which is called light calcined powder for short. The main uses of light calcined powder are as building materials for heat insulation and sound insulation, as well as for making cementitious materials. It can also be used as raw materials for making ceramics& nb
Published on: January 14, 2020 Number of hits: 51
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Reburned magnesia is very advantageous in producing refractory products because of its fire-resistant properties. It is mainly used in steel industry, glass, cement, nonferrous metallurgy, etc., and is also an ideal high-quality material for manufacturing unshaped refractory bricks. From the perspective of historical development, sintered magnesia is also called metallurgical magnesia, calcined magnesia, medium grade magnesia and high-purity magnesia. Magnesite
Published on: August 20, 2019 Number of hits: 30
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Light burned magnesia powder is a small artificial block for building. It is also called light burned magnesia fired brick. Solid clay refractory brick is one of the oldest building materials in the world. From the Mausoleum of the First Qin Emperor in Shaanxi to the Great Wall of Ming and Qing Dynasties in Beijing, it has inherited thousands of years of architectural civilization of the Chinese nation. So far, it is still the construction material loved by Chinese people. Fireclay bricks are made of local materials, cheap, durable and fireproof
Published on: July 19, 2019 Number of hits: 174
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At present, the materials used for the outer layer of cables inside most buildings are non refractory materials, which contributes to the occurrence of fire and causes huge property losses and casualties. How to solve such problems and prevent them before they happen has become a hot topic for relevant departments and the public. New materials are the guide and pillar of high-tech industry and advanced manufacturing industry,
Published on: February 19, 2019 Number of hits: 36
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Magnesite is calcined at high temperature from magnesite, bischofite or magnesium hydroxide extracted from seawater. It is a general term for the products of magnesite and other magnesia raw materials that have been treated at high temperature to reach the sintering process. The magnesia produced by the magnesia manufacturer with natural magnesite as raw material is called sintered magnesia by using the one-step or two-step calcination process of high-temperature equipment such as shaft kiln and rotary kiln; With magnesite, etc
Published on: July 27, 2018 Number of hits: 133
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The influence of calcined magnesia on the density of rubber compound is great. The strength and elongation properties and thermal aging have no change after use. The reduction of magnesium reduction by 30% - 70% is much better than that of ordinary magnesium carbonate; The wear reduction loss of magnesium oxide is better than that of ordinary magnesium oxide, which is not reduced. The cost is reduced after the density and magnesium density are reduced, and the weight of desulfurized magnesium oxide is reduced
Published on: June 11, 2020 Number of hits: 80
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Strictly speaking, magnesia beyond its shelf life will generally affect the activity of the calcined magnesia itself. However, if the stock is large, discard it and worry about waste. Now we tell you that you can check whether it can be used again from the following aspects. The production of desulfurized magnesium oxide shall be initially inspected. Normally, magnesium oxide should be white powder. If oxidized
Published on: July 27, 2018 Number of hits: 59
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In fact, there are many chemical substances that play a very important role in our life or work. The following is mainly to introduce some contents about magnesium oxide. The magnesium oxide manufacturer will give you a detailed introduction. First, we can note that this product is used in many places that
Published on: July 27, 2018 Number of hits: 50
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What is the relationship between the operating temperature of the calcined magnesia component and the insulation resistance? For almost all insulating materials, the higher the temperature is, the smaller the insulation resistance value will be. The insulation performance of magnesium oxide powder conforms to this rule. What effect does the minimum insulation resistance value have on the overall design? During product design, we should make clear the minimum value of insulation resistance of components at the highest operating temperature, and whether it can meet
Published on: July 27, 2018 Clicks: 81
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The calcined magnesite is mainly composed of 46% magnesite ore, which is calcined at 1600 ℃ - 1800 ℃ through a layer of coal and a layer of magnesite in the iron sheet kiln. The production process is that two tons of ore can produce one ton of heavy burned magnesia, which can be divided into three grades; 1、 Reburning magnesia in front of kiln, II. Underburning reburning magnesia, III, large pieces of reburning magnesia, the main color of reburning magnesia products is hard
Published on: July 27, 2018 Clicks: 110
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Refractory magnesia is a kind of raw material with medium alkalinity and chemical activity, which is not only used as refractory and cementitious material, but also used in other industrial fields. In addition, the development of converter slag splashing technology has further expanded the application range of light burned magnesia powder. At present, slag splashing furnace protection technology mostly uses light burned magnesia powder to form balls, including light burned magnesia powder balls and carbon containing light burned magnesia
Published on: July 27, 2018 Number of hits: 85
