Hebei Messi Biology Co., Ltd. said that silicon steel grade magnesium oxide needs to meet the quality technical indicators of MgO>98%, CaO<0.5%, and Cl<0.02%. The impurity CaO will be hydrated into Ca(OH)2 in the slurry and then coated on the surface of the steel plate to absorb CO2 in the air to form CaCO3. When […]
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Hebei Messi Biology Co., Ltd.. stated that cobalt, nickel and magnesium often coexist in the sulfuric acid leaching solution of nickel oxide ore. The saponification P507 process is usually used to separate cobalt and nickel. This process has problems such as the introduction of impurity ions, long process flow and wastewater discharge. The magnesium oxide
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Hebei Messi Biology Co., Ltd. stated that the production of silicon steel grade magnesium oxide mainly uses seawater brine and minerals as raw materials. When using liquid raw materials for production, alkaline solution is first used as a precipitant to precipitate magnesium, and then further prepare magnesium oxide. my country mainly uses the brine-ammonium carbonate
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Hebei Messi Biology Co., Ltd. stated that when the fluid powdered magnesium oxide is mixed or dry-ground in the presence of a small amount of water, a highly efficient hydration reaction will occur to generate powdered magnesium hydroxide; when the product is aged in the presence of water, the hydration efficiency is greatly improved, and
Preparation of magnesium hydroxide slurry using anionic and nonionic surfactants Read More »
Hebei Messi Biology Co., Ltd. stated that after simple purification of brine, lime as a precipitant is added to produce magnesium hydroxide precipitation. The slurry produced by the reaction must be concentrated by precipitation and filtration to wash away excess chloride to make slurry with various solid contents. When preparing the slurry, the stability of
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Hebei Messi Biology Co., Ltd. stated that domestic cellulose acetate production mainly uses imported high-purity magnesium oxide from foreign companies, and then gradually uses high-purity magnesium oxide from magnesite in Northeast China as a substitute. In 2017, with the increase in environmental protection efforts, magnesite in Northeast China was banned from mining due to dust
Requirements of cellulose acetate for magnesium oxide indicators Read More »
Hebei Messi Biology Co., Ltd. stated that magnesium acetate solution is a terminator for two important reactions in cellulose acetate production, namely substitution reaction and hydrolysis reaction. In cellulose acetate production, magnesium oxide and acetic acid solution reaction process are usually used to prepare magnesium acetate solution of specified concentration. MgO+2CH3COOH→Mg(CH3COO)2+ H2O In production, a
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Application of slurry magnesium hydroxide in water treatment Slurry magnesium hydroxide has the following advantages when used for water purification: high activity, good removal effect on suspended solids, COD, BOD oil, odor, heavy metal ions, phosphates, sulfates, acids, dyes, phenols, and silicates in wastewater, with a removal rate of 75%-99%, especially suitable for papermaking wastewater,
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In 2024, the magnesium carbonate market faces multiple pressures such as slowing domestic and foreign demand, and growth stagnates. Is the situation of magnesium carbonate industry not optimistic? Hebei Messi Biology Co., Ltd. believes that there are about dozens of magnesium carbonate manufacturers in China, mainly distributed in Liaoning, Qinghai and Hebei, accounting for 60%
The situation of magnesium carbonate industry in 2024 is not optimistic Read More »
Hebei Messi Biology Co., Ltd. stated that magnesium-aluminum hydrotalcite is a new type of multi-effect plastic additive with similar structure and composition to magnesium hydroxide and aluminum hydroxide. It can absorb heat when thermally decomposed, which can reduce the temperature of the combustion system; dilute combustible gases, isolate oxygen at the same time, and play
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