Email us!

We look forward to hearing from you.

Study on Preparation of Basic Magnesium Carbonate from Magnesium Chloride

Hebei Messi Biology Co., Ltd. stated that basic magnesium carbonate is a white monoclinic crystal or amorphous powder, non-toxic, odorless, stable in the air, with a relative density of 2.16; slightly soluble in water, and the aqueous solution is weakly alkaline. Its solubility is 0.02% (15℃), and it is easily soluble in acid and ammonium salt solution; it decomposes to release carbon dioxide when encountering dilute acid; it decomposes when heated to above 300℃ to generate water, carbon dioxide and magnesium oxide. Basic magnesium carbonate has a wide range of uses. It is mainly used in rolling, rubber making, ceramics, dyes, paints, pharmaceuticals, electronics, nitric acid, cables, flour improvers, new magnesium oxide decorative boards and other industries. It is a good desiccant, Wear-resistant and heat-insulating material, it is also one of the raw materials for preparing high-purity magnesium oxide.

As an important magnesium salt product, there are currently three main methods for producing basic magnesium carbonate: pyrolyzing ores such as dolomite, magnesite, and bitter soil powder, followed by acidolysis or direct acidolysis, and adding soda ash to the acidolysis solution. or ammonium bicarbonate to obtain basic magnesium carbonate; add soda ash or ammonium bicarbonate to brine (the main component is magnesium chloride) to obtain basic magnesium carbonate; use industrial magnesium sulfate aqueous solution or magnesium hydroxide slurry to react with CO2 to obtain basic magnesium carbonate.

Magnesium Carbonate Light Powder

According to data, the annual production of magnesium salt in the world was about 9 million tons in 1987, and the current production is less than 10 million tons; the demand in 1990 was 15 million tons, and by 2000, the demand will exceed 75 million tons. It can be seen that the contradiction between supply and demand in the international market is very prominent. With the continuous development of the market economy and magnesium salt-related industries, the demand for magnesium salts will grow at a higher rate. Hebei Meixi Biological Co., Ltd. predicts that the demand for magnesium salts will increase for a long period of time in the future. Demand will grow at a rate of more than 10%. Therefore, judging from the current and future domestic market conditions, the demand for magnesium carbonate is also very large, and its development prospects and market prospects are very optimistic.

Hebei Messi Biology Co., Ltd. stated that magnesium chloride, a by-product produced during the titanium smelting process, is a low-end product of the magnesium salt series. Its market value is not high, but its purity is high. Considering that basic magnesium carbonate has wide uses and moderate price, production The process is relatively simple. If magnesium chloride can be converted into basic magnesium carbonate, its product value can be improved, bringing better economic benefits to the enterprise and improving the market competitiveness of the enterprise.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top