Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9528170 | Method for producing a high-purity nanometer zinc oxide from steel plant smoke and dust by ammonia decarburization | Shichun Li, Xiaohong Li | 2016-12-27 |
| 9512502 | Method for producing a high-purity nanometer zinc oxide from low-grade zinc oxide ore by ammonia decarburization | Shichun Li, Xiaohong Li | 2016-12-06 |
| 9394183 | Method for producing a high-purity nanometer zinc oxide from electrolytic zinc acid leaching residues by ammonia decarburization | Shichun Li, Xiaohong Li | 2016-07-19 |
| 9346934 | Method for producing nanometer lithopone from electrolytic zinc acid leaching residue | Shichun Li, Xiaohong Li | 2016-05-24 |