| 8530678 |
Trioxane production method wherein a side aqueous flow is deducted at a first distillation stage |
Markus Siegert, Eckhard Stroefer, Achim Stammer, Thorsten Friese |
2013-09-10 |
| 8450507 |
Integrated method for the preparation of trioxane from formaldehyde |
Markus Siegert, Eckhard Stroefer, Christoph Sigwart |
2013-05-28 |
| 8378144 |
Process for preparing polyoxymethylene homopolymers or copolymers by homopolymerization or copolymerization of trioxane, starting from methanol |
Markus Siegert, Tobias Kortekamp, Eckhard Stroefer, Christoph Sigwart |
2013-02-19 |
| 8372993 |
Method for separating trioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification |
Joachim Thiel, Eckhard Stroefer, Julia Kirschbaum, Markus Siegert |
2013-02-12 |
| 8350063 |
Method for separating tioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification |
Markus Siegert, Laszlo Szarvas, Christoph Sigwart, Franz Niklaus Windlin, Eckhard Stroefer |
2013-01-08 |
| 7754900 |
Method for the production of dioxolane |
Markus Siegert, Eckhard Stroefer, Achim Stammer |
2010-07-13 |
| 7713387 |
Method for separating trioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification |
Markus Siegert, Eckhard Ströfer, Achim Stammer, Thorsten Friese, Hans Hasse |
2010-05-11 |
| 7414159 |
Separation of liquid mixtures in a film evaporator |
Eckhard Stroefer, Ute Lichtfers, Ulrich Steinbrenner, Hans Hasse |
2008-08-19 |
| 7390932 |
Method for preparing highly concentrated, gaseous formaldehydes |
Eckard Stroefer, Ulrich Steinbrenner, Hans Hasse, Michael Ott, Thomas Grützner |
2008-06-24 |
| 7381851 |
Method for producing formaldehyde |
Gerhard Olbert, Thorsten Johann, Markus Weber, Eckhard Ströfer, Martin Fiene +1 more |
2008-06-03 |
| 7345207 |
Production of high-concentration formaldehyde solutions |
Eckhard Stroefer, Hans Hasse, Thomas Grützner, Michael Ott |
2008-03-18 |
| 7342139 |
Method for producing highly concentrated formaldehyde solution |
Bernd Rumpf, Eckhard Ströfer, Ortmund Lang |
2008-03-11 |
