heavy soda ash

Tianjin Alkali Plant possesses a patented technology for producing heavy ash via the liquid-phase hydration method; the heavy ash produced has a low salt content and uniform particle size, making it a relatively advanced technique

Solid-phase hydration, liquid-phase hydration, modified methods, and mechanical extrusion all have their own advantages and disadvantages, and the choice should be based on the user’s needs; each method possesses distinct characteristics.

Currently, there are mainly three representative methods: the liquid-phase hydration method and the extrusion method. The solid-phase hydration method and the modified solid-phase hydration method were the earliest methods used for producing heavy soda ash. As mentioned above, each method has its advantages and disadvantages: the liquid-phase hydration method yields products with lower salt content and has seen rapid development in recent years, but it requires more energy compared to the extrusion method. The solid-phase hydration method and the extrusion method do not alter the chemical properties of the product; in other words, the salt content of the product remains unchanged. However, compared to the liquid-phase hydration method, the extrusion method requires less energy. Especially with the commissioning of the second set of production facilities for extrusion processes and the reduction in the salt content of heavy alkalis, this technology has become increasingly mature, allowing for the production of products with lower salt content.