Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4634579 | Selective removal of arsenical material in the course of an alkaline process for treating a uraniferous and/or molybdeniferous ore by means of a magnesium compound | Jean-Michel Lamerant, Francois Pallez | 1987-01-06 |
| 4511540 | Exploitation of copper, nickel and cobalt by treating manganiferous matrix oxidized ores | Charles Crussard, Jean-Philippe Bonhomme | 1985-04-16 |
| 4495159 | Extraction of arsenic in solution in liquors containing alkali metal carbonate, sulphate and possibly hydroxide, and at least one of the metals vanadium, uranium and molybdenum | — | 1985-01-22 |
| 4485075 | Process for the extraction of arsenic from aqueous solutions containing alkali metal carbonate, sulfate and hydroxide or hydrogen carbonate and at least on metal including vanadium, uranium and molybdenum | — | 1984-11-27 |
| 4451439 | Process for the purification of solutions containing a sodium or potassium carbonate, sulphate, and possibly hydroxide, and at least one of the metals vanadium, uranium and molybdenum | Bernard Bosca, Francois Nicolas | 1984-05-29 |
| 4432947 | Process for obtaining molybdenum as a useful product from molybdeniferous solutions containing alkali metal carbonate, sulphate, hydroxide or hydrogen carbonate and possibly uranium | — | 1984-02-21 |
| 4423009 | Carbonate, sulphate and hydroxide or hydrogen carbonate | Francois Nicolas | 1983-12-27 |
| 4423010 | Process for the selective removal of arsenic in the course of the oxidizing attack by means of a carbonated liquor on a uraniferous ore containing same | — | 1983-12-27 |
| 4423013 | Process for the purification of solutions containing alkali metal carbonate, sulphate, hydroxide or possibly hydrogen carbonate, and one at least of the metals vanadium, uranium and molybdenum | Francois Nicolas | 1983-12-27 |
| 4400359 | Process for the hot oxidized attack on a uraniferous ore by a concentrated alkaline liquor with simultaneous uranium precipitation | Francois Nicolas | 1983-08-23 |
| 4296073 | High temperature attack of ores by means of a liquor essentially containing a soluble bicarbonate | Francois Nicolas, Bernard Bosca | 1981-10-20 |