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Classification And Application Status of Magnesium Hydroxide Products

Country/Region china
Company Fengcheng City Heqi Brucite Mining Co., Ltd
Categories Ammonium Hydroxide
Telephone 0086-415-8194500
ICP License Issued by the Chinese Ministry
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Classification And Application Status of Magnesium Hydroxide Products

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  • Classification And Application Status of Magnesium Hydroxide Products

    Magnesium hydroxide products are divided into flame retardant grade, neutral grade, medical, electronic grade, magnesium hydroxide for oil additives, etc.; structurally divided into flakes, ultrafine, whiskers, nanoscale, heavy Magnesium hydroxide and the like. Among them, ultrafine magnesium hydroxide and magnesium hydroxide whiskers are preferred.
  • Category:
    Product Features
  • Browse number:
    587
  • Release time:
    2018-12-21 09:21:07
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  • Detailed Description

Magnesium hydroxide products are divided into flame retardant grade, neutral grade, medical, electronic grade, magnesium hydroxide for oil additives, etc.; structurally divided into flakes, ultrafine, whiskers, nanoscale, heavy Magnesium hydroxide and the like. Among them, ultrafine magnesium hydroxide and magnesium hydroxide whiskers are preferred.

The flake magnesium hydroxide can be used as an additive flame retardant, and the carbonization method is a product obtained by calcining, digesting, removing impurities, carbonizing and precipitating using magnesite or dolomite as raw materials. Using dolomite as raw material, ammonia water as precipitant and adding surface modification agent cetyltrimethylammonium bromide, hydrothermal preparation of rhombohedral layer magnesium hydroxide, the method of magnesium and calcium separation is higher, magnesium The extraction rate is 90.02%, and the product yield is 88.21%. The precipitation method uses magnesite or dolomite as raw materials, and is obtained by calcination, leaching, impurity removal and precipitation. The dolomite is used as raw material, successively leached with hydrochloric acid and sulfuric acid, and the product is prepared by adding self-made complexing precipitating agent and surface modifier polyethylene glycol, and the yield is 85.20%. The acid hydrolysis method uses a variety of magnesium-containing minerals as raw materials to obtain products through acid hydrolysis, impurity removal and precipitation. The dolomite is used as raw material, acidified and removed by hydrochloric acid, and the whitening lime milk is used as a precipitant. The purity of the product is 98%. Among them, the dolomitic milk is prepared by calcination of dolomite.

Ultrafine magnesium hydroxide can be used as a flame retardant component of composite materials. Different surface modifiers can be used to change the particle size of the product. Taking magnesium chloride solution as raw material, ammonia water as precipitant, product particle size<400nm; adding homemade surface modifier, particle size is 150nm; changing to polyethylene glycol, particle size is 89.5nm; changing to magnesium sulfate solution as raw material A self-made surface modifier was added to have a particle size of 380 nm. These magnesium salt solutions can be obtained by acid leaching or calcination of magnesium-containing minerals, wherein the magnesium chloride solution can be replaced with brine.

Magnesium hydroxide whiskers are short fiber functional materials that are mainly added to polymer materials as flame retardants and reinforcing materials. The precipitation method, which improves the precipitation process, can change the aspect ratio. The product is hydrothermally synthesized by using a magnesium chloride solution as a raw material, adding a base and a surface modifier. Using sodium hydroxide as precipitant, glycerol as surface modifier, using microwave water heat, diameter of 0.1-0.3m, length of 80-110m; switching to ammonia and sodium hydroxide as precipitant, acrylic acid for surface modification The agent has a diameter of 8-15 nm and a length of 50-150 nm; the medium-low concentration ammonia water and the low concentration magnesium chloride solution have good dispersibility; the basic magnesium sulfate whisker is the precursor, and the sodium hydroxide is the precipitate. The potassium oleate is a surface modifier, and the product having a diameter of 1 to 2 m and a length of 100 to 200 m is prepared by hydrothermal treatment; the addition of the surface modifier does not reduce the particle size, but prevents the basic magnesium sulfate whisker from being Magnesium hydroxide whiskers are converted.

Fengcheng City Heqi Brucite Mining Co., Ltd., is an imports and exports mining company registered in 1998 in Fengcheng City of Liaoning Province. the company is located in Fengcheng City, Primarily engaged in processing minerals. The company property mainly manufactures magnesium hydroxide flame retar

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