Issued Patents All Time
Showing 26–50 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6432370 | Method and apparatus for controllably conducting a solution, obtained from liquid-liquid extraction of two solutions and mixed into dispersion, to a wide settler | Launo L. Lilja, Stig-Erik Hultholm, Juhani Lyyra, Raimo Kuusisto, Petri Taipale +1 more | 2002-08-13 |
| 6267900 | Method and apparatus for adjusting the boundary surface between two controllably flowing and mutually separable and for conducting both solutions out of the separation part | Launo L. Lilja, Stig-Erik Hultholm, Juhani Lyyra, Raimo Kuusisto, Petri Taipale +1 more | 2001-07-31 |
| 6176608 | Method and apparatus for conducting the two solutions of liquid-liquid extraction, mixed into dispersion, in a controlled fashion into the separation part | Launo L. Lilja, Stig-Erik Hultholm, Juhani Lyyra, Raimo Kuusisto, Petri Taipale +1 more | 2001-01-23 |
| 6132615 | Method and apparatus for creating controlled flows in two mutually separable solutions | Launo L. Lilja, Stig-Erik Hultholm, Juhani Lyyra, Raimo Kuusisto, Petri Taipale +1 more | 2000-10-17 |
| 6083400 | Method and apparatus for recirculating a heavier solution from the separation part of two separable solutions into a mixing unit | Launo L. Lilja, Stig-Erik Hultholm, Juhani Lyyra, Raimo Kuusisto, Petri Taipale +1 more | 2000-07-04 |
| 5779997 | Method for preventing the formation of jarosite and ammonium and alkali based double salts in solvent extraction circuits connected to acidic leaching processes | Stig-Erik Hultholm | 1998-07-14 |
| 5662871 | Method for extracting metals from large solution flows and apparatus for realizing the same | Valto J. Makitalo, Launo L. Lilja, Sti-Erik Hultholm, Timo Saarenpaa | 1997-09-02 |
| 5549854 | Method and apparatus for forming controlled vortexes and for recirculating gas | Stig-Erik Hulthom, Launo L. Lilja, Valto J. Makitalo | 1996-08-27 |
| 5248485 | Method for mixing liquid, solids and gas and for simultaneously separating gas or gas and solids from the liquid | Launo L. Lilja, Valto J. Makitalo, Stig-Erik Hultholm | 1993-09-28 |
| 5240327 | Method for creating double loop flow | Seppo S. Jounela, Launo L. Lilja, Valto J. Makitalo | 1993-08-31 |
| 5219467 | Method for concentrating ore slurries by means of intensive agitation conditioning and simultaneous flotation, and an apparatus for the same | Seppo S. Jounela, Launo L. Lilja, Valto J. Makitalo | 1993-06-15 |
| 5188808 | Method for mixing liquid, solids and gas and for simultaneously separating gas or gas and solids from the liquid | Launo L. Lilja, Valto J. Makitalo, Stig-Erik Hultholm | 1993-02-23 |
| 5185081 | Method and apparatus for mixing and separating two liquid phases while preventing aeration and emulsions using a mixer-settler | Stig-Erik Hultholm, Launo L. Lilja, Valto J. Makitalo | 1993-02-09 |
| 5182087 | Method for mixing two liquids or liquid and solid material together, and for simultaneously separating another liquid or solid from the liquid | Launo L. Lilja, Valto J. Makitalo, Stig-Erik Hultholm | 1993-01-26 |
| 5178653 | Multigas scrubber | Launo L. Lilja, Valto J. Makitalo | 1993-01-12 |
| 5118478 | Extractrion process for removing and recovering metals from aqueous solutions | Leif E. I. Hummelstedt | 1992-06-02 |
| 5078505 | Apparatus for creating a double loop flow | Seppo S. Jounel, Launo L. Lilja, Valto J. Makitalo | 1992-01-07 |
| 4818503 | Extraction process for removing and recovering metals from aqueous solutions | Leif E. I. Hummelstedt | 1989-04-04 |
| 4786187 | Method for dispersing two phases in extraction and apparatus for realizing the method | Stig-Erik Hultholm, Launo L. Lilja, Valto J. Makitalo | 1988-11-22 |
| 4747694 | Method for dispersing two phases in a solvent extraction process and a pump mixer for realizing the method | Stig-Erik Hultholm, Launo L. Lilja, Valto J. Makitalo | 1988-05-31 |
| 4721571 | Method for dispersing two phases and for setting the dispersed phases | Stig-Erik Hultholm, Raimo Leimala, Launo L. Lilja, Valto J. Makitalo | 1988-01-26 |
| 4648973 | Way to oxidize sludge with high solid matter content | Stig-Erik Hultholm, Launo L. Lilja, Valto J. Makitalo | 1987-03-10 |
| 4628391 | Method for dispersing two phases in liquid-liquid extraction | Stig-Erik Hultholm, Launo L. Lilja, Valto J. Makitalo | 1986-12-09 |
| 4565660 | Method for dispersing gas, for mixing a pulverous solid into a liquid to form a suspension, and for maintaining the obtained good solid-gas-liquid suspension in the reactor | Stig-Erik Hultholm, Launo L. Lilja, Valto J. Makitalo | 1986-01-21 |
| 4548765 | Method for dispersing gas in a solid-containing liquid, and an apparatus for it | Stig-Erik Hultholm, Launo L. Lilja, Valto J. Makitalo | 1985-10-22 |