Hebei Messi Biology Co., Ltd. stated that high-concentration and high-stability magnesium hydroxide slurry can be obtained by adding anionic polyelectrolytes to magnesium hydroxide emulsion. When the polyelectrolyte concentration is 25% and the amount added is 0.5%-1.5% of the total amount of magnesium hydroxide (on a dry basis), the obtained slurry contains 51%-62% solids, 38%-49% water, 40-500mPas viscosity, and an average particle size of 1.0-2.5um. This slurry can be stored for a long time for more than 6 months without stirring and still remain in a suspended state.
Hebei Messi Biology Co., Ltd. uses brine as raw material and ammonia water as precipitant to produce magnesium hydroxide under the optimal conditions and the effects of various dispersants on the performance of the slurry. Through experiments, the dispersant ratio required for slurry stability is investigated, and on this basis, a stable magnesium hydroxide slurry is prepared. Through the research of this experiment, it can fill the gap in the high stability technology of slurry magnesium hydroxide products in my country and solve the problems arising in the production process of slurry magnesium hydroxide.
Slurry magnesium hydroxide is also an inorganic chemical product with great environmental and ecological advantages, which is in line with the strategy of sustainable development. The research, development and production of slurry magnesium hydroxide are very active internationally, and China has gradually begun to pay attention to the research and development of slurry magnesium hydroxide. my country’s magnesium resources are very rich, and the reserves of magnesite rank first in the world; the coastal brine resources are rich, and the salt lakes and well brine in Qinghai, Sichuan and Shanxi inland are rich in hydrated magnesium chloride, which provides an inexhaustible and inexhaustible ideal raw material for the production of slurry magnesium hydroxide in my country, and can achieve long-term sustainable development.
my country’s coastal seawater resources are rich, and my country is one of the countries in the world that produces more sea salt. The national raw salt production capacity is nearly 30 million tons, and the by-product brine is about 20 million cubic meters. Brine is a renewable resource with high utilization value. However, for a long time, my country has not attached importance to the development and utilization of brine, and the utilization rate of brine in my country is less than 10%, resulting in a large waste of magnesium resources. Therefore, the full utilization of brine magnesium resources has become an urgent task. Radon magnesium oxide is the third magnesium chemical after magnesia and light-burned magnesium oxide. It is one of the products favored and respected in the process of developing countries to promote sustainable development strategies, protect the environment, and benefit ecological development. It is called a green and safe neutralizer, an environmentally friendly flame retardant, and a third alkali. Therefore, the use of cheap raw materials and processes to prepare stable and highly active slurry magnesium hydroxide has become an important research topic with good development prospects.