| 8372993 |
Method for separating trioxane from a trioxane/formaldehyde/water mixture by means of pressure change rectification |
Neven Lang, Eckhard Stroefer, Julia Kirschbaum, Markus Siegert |
2013-02-12 |
| 7520964 |
Method for the rectifying separation of fluids containing (meth)acryl monomers |
Ulrich Hammon, Volker Schliephake, Juergen Schroeder |
2009-04-21 |
| 7393436 |
Thermal separating process for removing at least one stream containing enriched (meth) acrylic monomers |
Bernd Eck, Ulrich Hammon, Klaus Joachim Mueller-Engel, Juergen Schroeder, Hans Martan |
2008-07-01 |
| 7351310 |
Rectificative separation of fluids comprising (meth) acrylic monomers |
Albrecht Dams, Juergen Schroeder |
2008-04-01 |
| 7306204 |
Column comprising dual flow plates |
Juergen Schroeder |
2007-12-11 |
| 7287534 |
Cleaning of apparatus in which meth(acrylic) acid-containing organic solvents have been treated and/or generated |
Volker Diehl, Ulrich Jager, Jürgen Schröder |
2007-10-30 |
| 7279075 |
Thermal separating process between at least one gaseous and at least one liquid stream, of which at least one comprises (meth)acrylic monomers |
Hugues Vandenmersch, Juergen Schroeder, Albrecht Dams |
2007-10-09 |
| 7118098 |
Hydraulically sealed crossflow mass transfer tray |
Ulrich Hammon, Bernd Gerber, Helmut Jansen, Björn Kaibel |
2006-10-10 |
| 7109374 |
Method for the continuous extraction of (meth)acrylic acid |
Otto Machhammer, Christoph Adami, Claus Hechler, Juergen Schroeder, Volker Schliephake +1 more |
2006-09-19 |
| 7029557 |
Method for producing an aqueous hydroxylamine solution devoid of salt |
Karl-Heinz Wostbrock, Heinz Krüger, Eckhard Ströfer, Markus Weber, Bernd Gerber +3 more |
2006-04-18 |
| 6942762 |
Method for the production of a salt-free aqueous hydroxylamine solution |
Karl-Heinz Wostbrock, Heinz Krüger, Eckhard Ströfer, Markus Weber, Bernd Gerber +3 more |
2005-09-13 |
| 6939991 |
Preparation of acrylic acid |
Ulrich Hammon, Dieter Baumann, Jorg Heilek, Jürgen Schröder, Klaus Joachim Müller-Engel |
2005-09-06 |
| 6921833 |
Method for the continuous production of methyl formate |
Heinz Auer, Jurgen Dahlhaus, Karl Fischer, Hans Hammer, Jochen Kellenbenz +2 more |
2005-07-26 |
| 6679939 |
Fractional condensation of a product gas mixture containing acrylic acid |
Jürgen Schröder, Gerhard Nestler |
2004-01-20 |
| 6646161 |
Method for the fractional condensation of a hot gas mixture containing acrylic acid or methacrylic acid and having a high proportion of non-condensable constituents |
Bernd Eck, Otto Machhammer, Theo Proll, Volker Schliephake, Klaus Bröllos |
2003-11-11 |
| 6541665 |
Method for purifying acrylic acid or methacrylic acid by crystallization and distillation |
Erik Bastiaensen, Bernd Eck |
2003-04-01 |
| 6469428 |
Lamp with a mechanical base |
Ernst Muehlich, Dieter Trypke |
2002-10-22 |
| 6448439 |
Method for producing acrylic acid and methacrylic acid |
Bernd Eck, Otto Machhammer, Theo Proll, Volker Schliephake, Klaus Bröllos |
2002-09-10 |
| 6433222 |
Method for producing acrylic acid |
Bernd Eck, Jorg Heilek, Volker Schliephake, Theo Proll, Klaus Bröllos +1 more |
2002-08-13 |
