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Class Information
Number: 71/DIG.3
Name: Chemistry: fertilizers > Defluorination
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4765822 |
Recovery of fluorine from waste gases |
Aug. 23, 1988 |
| 4423015 |
Process of producing defluorinated product from low BPL phosphate rock |
Dec. 27, 1983 |
| 4405575 |
Method of defluorinating phosphates |
Sep. 20, 1983 |
| 4205049 |
Water injection for control of fines for producing defluorinated phosphate rock granules |
May. 27, 1980 |
| 4175944 |
Removal of fluorine during production of fertilizer |
Nov. 27, 1979 |
| 4160657 |
Preparation of monocalcium phosphate and phosphoric acid |
Jul. 10, 1979 |
| 4152398 |
Process for producing defluorinated phosphate rock granules |
May. 1, 1979 |
| T982001 |
Preparation of liquid fertilizers with improved storage properties |
May. 1, 1979 |
| 4106922 |
Alkaline decomposition process for producing calcined phosphate fertilizer |
Aug. 15, 1978 |
| 4101636 |
Defluorinated phosphate rock process using lime |
Jul. 18, 1978 |
| 4043789 |
Process for manufacturing of phosphoric acid |
Aug. 23, 1977 |
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