1, Zhongyan inner mongolia chemical co., ltd.
2. Shandong Haihua Group Co., Ltd
3. Tangshan Sanyou Chemical Co., Ltd.
4. Inner Mongolia Guyuanxing Energy Co., Ltd..
Sichuan hebang biotechnology co., ltd.
6. Shandong Jinjing Technology Co., Ltd..
7. Hubei Shuanghuan Technology Co., Ltd..
8. Tianjin Bohua Li Yong Chemical Co., Ltd.
9. Jiangsu Salt Industry Group Co., Ltd
10, Jiangsu Huachang Chemical Co., Ltd.
There are many production processes of soda ash, which are mainly divided into natural alkali method and synthetic alkali method, among which synthetic alkali method includes ammonia alkali method and combined alkali method. The raw material of trona method is trona mineral, and soda ash is prepared through a series of processes such as dissolution, filtration, evaporation and crystallization of trona mineral.
Ammonia-alkali process, also known as solvay process, is one of the mainstream processes in China. The main raw materials include salt, limestone, coke and ammonia. Sodium bicarbonate was separated from the solution at room temperature, and then calcined by heating to obtain soda ash. Combined soda process, also known as Hou Shi soda process, is also one of the mainstream soda processes in China. The main raw materials of this method are salt, ammonia and carbon dioxide. On the basis of Suwei process, soda ash and synthetic ammonia are jointly produced to produce soda ash and ammonium chloride.