| 1 | In order to content the productive capacity of soda, a new calciner system was added. | |
| 2 | Haihua Group is a crystallization of reform and opening, and is a flag of China soda industry. | |
| 3 | Using the rectangular test method, the process of calcinating Sicuan mine by soda was studied in this paper. | |
| 4 | The calcined trona can replace soda ash for use in the flotation operation. | |
| 5 | Water, wash color fastness and rubbing degree of fixation better than soda. |