Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10232312 | Device and process for fluorine recovery from smoke after phosphorus absorption by hydration in kiln process for production of phosphoric acid | Yonghe Hou, Chenjuan Wei | 2019-03-19 |
| 10023463 | Phosphorus absorption by hydration and fluorine recovery for fume exiting kiln in kiln phosphoric acid process | Yonghe Hou, Chenjuan Wei | 2018-07-17 |
| 10005669 | Method for mass production of phosphoric acid with rotary kiln | Yonghe Hou | 2018-06-26 |
| 9982947 | Rotary kiln for reducing phosphate ore in kiln phosphoric acid process and method for solving ring forming in kiln tail in kiln phosphoric acid process | Yonghe Hou, Pengsheng Wang, Jiabin Wang | 2018-05-29 |
| 9776868 | Apparatus for preparing phosphoric acid from fume exiting the kiln in a kiln phosphoric acid process | Yonghe Hou, Chenjuan Wei | 2017-10-03 |