sodium bicarbonate production process:
Before there was no industrial production method, soda was collected from trona water or produced from alkali-containing green plant ash, which was used in the production of detergents and laminated glass, toilet soap, leather products and other aspects. With the development of the industry, the initial method of obtaining sodium bicarbonate can no longer consider the requirement of alkali, and the production process of large-scale industrial production of alkali production has emerged from time to time. At this stage, the process of making alkali is divided into the alkali generation method and the trona method. Among the global sodium bicarbonate production capacity, the alkali generation method accounts for about two-thirds, and the trona method accounts for about one-third.
sodium bicarbonate market industry chain:
The upstream and downstream of trona alkali is trona ore, the upstream and downstream of ammonia base production is raw salt and dolomite, and the upstream and downstream of hydrazine alkali is raw salt and synthetic ammonia. The key to making alkali is coking coal, and some companies also use gas.
Light alkali is suitable for daily-use glass industry, detergents and food enterprises. Heavy alkali is suitable for manufacturing photovoltaic glass. The carbonate industry selects and applies light and heavy bases according to the different industries. A part of the midstream and downstream companies in the detergent and alumina industry can carry out the renovation and replacement of the kiln according to the price changes of sodium bicarbonate and caustic soda, and reduce the production cost.
sodium bicarbonate quality standards:
National standards divide industrial grade sodium carbonate into two categories. National standard I and special industrial grade heavy sodium carbonate only set high-quality products. National standard class II and general industrial grade sodium carbonate, including two types of general industrial grade light sodium carbonate and general industrial grade heavy sodium carbonate, which are divided into high-quality products, first-class products and qualified products according to different types of index values level.
sodium bicarbonate supply structure:
China's sodium bicarbonate production capacity, production and consumption are the first in the world. The production volume of China's sales market is slightly lower than that of foreign markets. The import and export volume accounts for 12% of the world's sodium bicarbonate export volume. Way of balancing supply and demand.
