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Inventor: Aaltonen; Jarmo
Address: Siilinjarvi, FI
No. of patents: 4
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| RE32875 |
Process for the froth-flotation of a phosphate mineral from a phosphate-carbonate ore |
February 21, 1989 |
| A process for the separation of phosphate minerals from a phosphate-carbonate ore, by flotation, wherein a phenol polymer such as a resol or a novolak, which improves the yield and selectivity of the phosphate minerals with respect to the carbonate minerals, is used in addition to a |
| 6814949 |
Process for production of phosphoric acid by crystallization of phosphoric acid hemihydrate |
November 9, 2004 |
| The invention relates to a process for producing simultaneously food-grade and fodder-grade phosphoric acid by crystallizing phosphoric acid hemihydrate, H.sub.3 PO.sub.4.times.0.5H.sub.2 O, from a prepurified feed acid, which is purified and crystallized with the help of the following |
| 4755285 |
Process for the froth-flotation of a phosphate mineral, and a reagent intended for use in the pr |
July 5, 1988 |
| The invention relates to a process for the separation of phosphate minerals from a phosphate ore, especially from a phosphate-carbonate ore, by using in the flotation as the reagent selective for phosphate mineral a compound having the general formula I, or a salt or amide ##STR1## |
| 4687571 |
Process for the froth-flotation of a phosphate mineral from a phosphate-carbonate ore |
August 18, 1987 |
| A process for the separation of phosphate minerals from a phosphate-carbonate ore, by flotation, wherein a phenol polymer such as a resol or a novolak, which improves the yield and selectivity of the phosphate minerals with respect to the carbonate minerals, is used in addition to a |
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