Hebei Messi Biology Co., Ltd. stated that in the preparation of high-purity magnesium hydroxide (≥99%), under normal conditions, it is not easy to use lime milk precipitation to prepare high-purity magnesium hydroxide, and it must go through a more complex purification process including washing and other processes) , especially the problem of calcium reduction and […]
Preparation process of high-purity magnesium hydroxide Read More »
Hebei Messi Biology Co., Ltd. said, in the development of flame retardant magnesium hydroxide, the United States, Japan and other countries in the country’s capacity has reached 10,000 tons. 1980s has been a lot of research and development in this area, after the mid-1980s into the production scale. Compared with them, China’s gap is about
Preparation and application of magnesium hydroxide flame retardant Read More »
Hebei Messi Biology Co., Ltd. stated that the molecular formula of light magnesium carbonate can usually be expressed as XMgCO3YMg(OH)2ZH2O, where the values of X, Y and Z vary with different preparation conditions. Light magnesium carbonate has a wide range of uses in industry. It can be used as a filler and reinforcing agent for
Decomposition reaction of magnesium carbonate and its molecular composition Read More »
Hebei Messi Biology Co., Ltd. stated that magnesium carbonate is a white and odorless powder, containing magnesium carbonate (MgC03), magnesium carbonate trihydrate (MgC03#3H20), magnesium carbonate pentahydrate (MgCO3#5H2O) and basic magnesium carbonate ( Mg5(C03)4(OH)2#4H20), etc., have been widely used in medicine, food, cosmetics, rubber, plastics, printing industry and other fields due to their special structural properties.
Effect of stirring time on morphology and composition of magnesium carbonate Read More »
Hebei Messi Biology Co., Ltd. stated that basic magnesium carbonate was surface modified with stearic acid and added to a mixture of low-density polyethylene (LDPE) and ethylene-vinyl acetate (EVA) to prepare flame-retardant composite materials. The effect of basic magnesium carbonate on the flame retardancy and mechanical properties of LDPE/EVA was studied. Scanning electron microscopy (SEM)
Research on the performance of basic magnesium carbonate flame retardant LDPE/EVA Read More »
Hebei Messi Biology Co., Ltd. stated that this article describes the application of redox method for iron removal in the preparation of magnesium carbonate, and examines the effects of reaction time, reducing agent, oxidizing agent, and complexing agent on the iron removal effect. Experiments show that under optimal reaction conditions, the iron content drops to
Research on iron removal process of magnesium carbonate products Read More »
Hebei Messi Biology Co., Ltd. stated that carbonate rock is a widely distributed rock type on the earth. Its weathered products will enter the soil and sediments in the area and become the main component thereof. In the carbonate mineral-heavy metal-water solid-liquid system, carbonate minerals can interact with metal ions such as Cu, Pb, Zn,
Adsorption and precipitation of lead by magnesium carbonate Read More »
Hebei Messi Biology Co., Ltd. stated that it uses the sol-gel method to prepare nano-magnesium oxide using magnesite, hydrochloric acid and urea as raw materials, and adding the gelling agent polyethylene glycol. The effects of calcination temperature, gelling agent molecular weight, dispersing agent and their dosage on the experiment were investigated. The results show that
Problems and prospects of magnesium carbonate whisker preparation technology Read More »
Hebei Messi Biology Co., Ltd. stated that the hydrogen sulfide hydrothermal method is a hydrogen sulfide decomposition method that uses brine as raw material to prepare large particle size and easy-to-filter magnesium hydroxide. The reaction formula of the hydrogen sulfide decomposition method is: MgCl2+2HS+2H20-→Mg( OH)2↓+2H2S↑+2Cl. The magnesium hydroxide prepared by this method is usually irregular
Process for preparing magnesium hydroxide by brine electrolysis and hydrothermal method Read More »
Hebei Messi Biology Co., Ltd. stated that it is not easy to produce products that meet quality requirements through the interaction of bittern and milk of lime. If the reaction conditions are not well controlled, colloidal precipitation is likely to occur. The sedimentation rate is very slow, and there are many entrained impurities, which requires
