As the paper industry is affected by environmental factors, manufacturers have carried out transformation and upgrading, change the previous production process, so magnesium oxide in the paper industry is more and more popular with customers, below we will have a detailed understanding of the papermaking magnesium oxide related matters.
Magnesium oxide was used to replace ammonia water in ammonium sulfite pulping. Magnesium oxide is used as alkaline buffer, and the indexes of slurry can reach the level similar to that of ammonia water method. Magnesia as a buffer, pulp is easy to bleach, can promote the process of distillation of lignin, reduce pollutant emissions, help to protect the environment, but also can reduce costs. Magnesium oxide is used in pulp bleaching. Compared with the traditional bleaching process, magnesium oxide can replace caustic soda. At the same time, magnesium oxide can improve the viscosity of the slurry, maintain the brightness of the pulp, and reduce the content of COD and production costs.
In the process of hydrogen peroxide bleaching pulp, magnesium oxide can replace caustic soda, to reduce the content of iron, manganese ions in the slurry role, but also to avoid the presence of excess iron and yellow, improve the quality of slurry. At the same time, magnesium oxide has a buffering effect and easy to control the pH value.
If combined with phosphate, silicate and other inorganic complexing agents will be better. Magnesium oxide can be used as a wetting agent to improve pulp deinking operations. The traditional sulfite pulping process can be improved to make magnesium sulfite pulping process. After the improvement, wood of lower quality can be used as raw material. The paper pulp produced can be used for news printing paper. In this way, many ecological and economic problems in traditional sulfite pulping operations have been solved for paper mills.
Meishen is the world's leading producer of magnesium oxide, Magnesium oxide is an oxide of magnesium, an ionic compound. It is a white solid at room temperature. Magnesium oxide exists in the form of periclase in nature and is a raw material for magnesium smelting. Magnesium oxide is white or light yellow powder, odorless, tasteless, this product is insoluble in water and ethanol, melting point 2852 ° C, boiling point 3600 ° C, magnesium oxide has high refractory insulation properties. It can be converted into crystal by burning at a temperature above 1000 ° C. If it rises above 1500 ° C, it will form a burnt magnesia or sintered magnesia.
Magnesium oxide can be used in the manufacture of metallurgy, smelting, advanced magnesia bricks, refractory materials and moisturizing materials. It is also widely used in rubber, rubber sheet, rubber products, pharmaceutical industry, food industry, plastic sheet accelerator, glass fiber reinforced plastics and Surface coating of silicon steel sheet, paper production, steel ball polishing, leather treatment, insulation materials, grease, dyes, ceramics, desiccant, resin, flame retardant, etc.
Hebei Meishen Chemical Technology Group is the main magnesium oxide producer in the world. It is also the largest magnesium salt producer in China and has won the ISO9002 quality system certification. It also has GMP-Certification.
With rich experience in the research, development, production, management and operation of magnesium oxide products, Meishen Group has always attached great importance to the research and development of new products and strict requirements on product quality. Meishen has a high-level sales team. The business covers more than 20 countries and regions around the world. It is widely welcomed by new and old customers.
Meishen has a high-level sales team. The business covers more than 20 countries and regions around the world. It is widely welcomed by new and old customers.