Magnesium hydroxide is an inorganic weak base product. Because of its strong buffering performance, high activity and adsorption capacity, as well as many unique properties such as non-corrosiveness, non-toxicity and harmlessness, it is called "green medium". It is one of the most favored and respected products in the process of implementing sustainable development strategies, protecting the environment and beneficial ecological development.
Magnesium hydroxide can also be used as an intermediate material to produce magnesium oxide. Ultra-fine magnesium hydroxide is also one of the important raw materials for the production of nano-magnesium oxide; as a product, it has many uses, among which the consumption is large and the use effect is significant mainly in two fields. First, as an inorganic additive non-toxic flame retardant, it has various properties such as flame retardant, smoke elimination, drip resistance, filling, etc.; second, it is used in the field of environmental protection. As an environmental protection product, due to its excellent performance, it has occupied the first few places in the consumption of magnesium hydroxide.
The preparation method of magnesium hydroxide includes:
1. Physical pulverization method Physical pulverization method refers to the direct pulverization of ore, through dry coarse grinding and wet ultrafine grinding, to obtain magnesium hydroxide products of the required particle size grade. The more commonly used ore is brucite.
2. Ore calcination and hydration method In this method, ore is calcined, and the prepared magnesium oxide is hydrated to prepare magnesium hydroxide, which is a process of magnesium oxide dissolution and magnesium hydroxide precipitation, wherein the dissolution of magnesium oxide is a control step. Due to the different ore compositions, magnesite is more commonly used.
3. Liquid phase precipitation method There are two sources of raw materials for this method, one is that magnesite, dolomite, serpentine, etc. are treated by acid hydrolysis or other methods to obtain magnesium salt, which is subjected to precipitation reaction with alkali to prepare hydroxide magnesium. One is to prepare magnesium hydroxide by precipitation reaction of magnesium salt obtained from seawater, salt lake water and well brine with alkali.
Disclaimer: The picture materials and articles on this platform come from the Internet, so the copyright belongs to the original author. If there is any infringement on your copyright and interests, please contact us, we will apologize and delete it quickly. Article source: Rubber Technology Network
Latest news
- The Combination and Foaming Process of
- Famous tire enterprise with multiple d
- Ministry of Commerce Initiate a final
- The Effect of Carbon Black on the Cutt
- Stop work orders encounter rising pric
- Lanzhou Petrochemical's carboxylated n
Contact us
- ADD: Room 4210, CEC Business Hall, No. 121-4, Nanjing South Street, Heping District, Shenyang
- TEL: 13644907299
- FAX: 024-25361668
- E-mail: boss@long-green.cn
> Company newCharacteristics and preparation method of magnesium hydroxide
2022-05-07
PREVIOUS：Properties of Magnesium Oxide
NEXT：What is acrylic rubber