| 8884064 |
Method of separating off magnetizable catalyst particles by means of magnetic filters |
Frank Kuhnke, Daniela Rieck |
2014-11-11 |
|
| 8476463 |
Process for separating off fumaric acid and other minor components during the production of maleic anhydride |
Gunther Windecker, Jens Weiguny, Alexander Weck, Ellen Dahlhoff, Wolf-Steffen Weiβker +2 more |
2013-07-02 |
|
| 8231792 |
Purification of ionic liquids |
Martin Fiene, Harald Rust, Klemens Massonne, Veit Stegmann, Oliver Huttenloch |
2012-07-31 |
|
| 7999120 |
Process for continuously removing a target product X in the form of fine crystals |
Peter Schlemmer, Ulrich Hammon, Klaus Joachim Müller-Engel |
2011-08-16 |
|
| 7705181 |
Process for removing methacrylic acid from liquid phase comprising acrylic acid as a main constituent and target product, and methacrylic acid as a secondary component |
Klaus Joachim Müller-Engel, Christoph Adami, Martin Dieterle |
2010-04-27 |
|
| 7612233 |
Production of sodium diformate |
Alexander Hauk, Stefan Gropp, Robert W. Lenz, Daniela Rieck, Gerhard Laux |
2009-11-03 |
|
| 7323016 |
Regulation of a wash column in a melt crystallization process |
Bernd Eck, Dieter Baumann |
2008-01-29 |
|
| 7112695 |
Method for the purification of a crude acrylic acid melt |
Bernd Eck, Dieter Baumann, Klaus Joachim Müller-Engel |
2006-09-26 |
$504,000 |
| 6939991 |
Preparation of acrylic acid |
Joachim Thiel, Ulrich Hammon, Dieter Baumann, Jürgen Schröder, Klaus Joachim Müller-Engel |
2005-09-06 |
$690,000 |
| 6921837 |
Process for the purification and preparation of acrylic acid or methacrylic acid |
Bernd Eck, Dieter Baumann, Volker Schliephake |
2005-07-26 |
$645,000 |
| 6852881 |
Purification method for (meth)acrylic acid |
Emile De Decker, Erik Bastiaensen, Dieter Baumann, Bernd Eck |
2005-02-08 |
$197,000 |
| 6703511 |
Method for obtaining pure n-vinyl pyrrolidone |
Bernd Eck, Martin Schmidt-Radde, Herbert Helfert |
2004-03-09 |
$708,000 |
| 6700016 |
Method of purifying and producing acrylic acid or methacrylic acid |
Bernd Eck, Dieter Baumann, Volker Schliephake |
2004-03-02 |
$388,000 |
| 6638619 |
Method for producing a granulate from a melt |
Melanie Brunner, Rudolf Erich Lorenz, Bernhard Maltry |
2003-10-28 |
$496,000 |
| 6433222 |
Method for producing acrylic acid |
Bernd Eck, Volker Schliephake, Theo Proll, Klaus Bröllos, Otto Machhammer +1 more |
2002-08-13 |
$290,000 |
| 6414190 |
Purification of acrylic acid by crystallization by means of vacuum evaporation |
Bernd Eck, Volker Schliephake |
2002-07-02 |
$273,000 |
| 6051736 |
Preparation of (meth)acrylic acid |
Armin Schraut, Michael-Dieter Ulbrich, Freidrich-Georg Martin, Bernd Eck |
2000-04-18 |
|
| 6026656 |
Crystallization by evaporation and vapor condensation |
Bernd Eck |
2000-02-22 |
|
| 5814231 |
Separation of liquid eutectic mixtures by crystallization on cold surfaces and apparatus for this purpose |
Klaus Borho, Gunter Schnabel |
1998-09-29 |
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