| 7348443 |
Method for producing partial oxidation products and/or partial ammoxidation products of at least one olefinic hydrocarbon |
Otto Machhammer, Goetz-Peter Schindler, Klaus Joachim Mueller-Engel |
2008-03-25 |
| 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, Volker Schliephake, Joachim Thiel, Klaus Bröllos |
2003-11-11 |
| 6596901 |
Method for purifying acrylic acid and methacrylic acid |
Bernd Eck, Otto Machhammer, Volker Schliephake, Klaus Joachim Müller-Engel |
2003-07-22 |
| 6448439 |
Method for producing acrylic acid and methacrylic acid |
Bernd Eck, Otto Machhammer, Volker Schliephake, Joachim Thiel, Klaus Bröllos |
2002-09-10 |
| 6433222 |
Method for producing acrylic acid |
Bernd Eck, Jorg Heilek, Volker Schliephake, Klaus Bröllos, Otto Machhammer +1 more |
2002-08-13 |
| 6252122 |
Industrial process for the heterogeneously catalytic gas-phase oxidation of propane to form acrolein |
Andreas Tenten, Hans-Peter Schildberg |
2001-06-26 |
| 5831124 |
Purification of acrylic acid and methacrylic acid |
Otto Machhammer, Albrecht Dams, Bernd Eck |
1998-11-03 |
| 5817865 |
Preparation of acrylic acid and esters |
Otto Machhammer, Toni Dockner, Gerd-Jurgen Engert |
1998-10-06 |
| 5258106 |
Electrolysis of alkali metal sulfates |
Wolfgang Habermann, Werner Bochnitschek, Johann Fritzmann, Peter Hammes, Walter Weisbrodt |
1993-11-02 |
| 5017725 |
Preparation of addition salts of cysteamine with acids |
Andreas Hohmann, Wolfgang Reuther, Rolf Fikentscher |
1991-05-21 |
| 4814505 |
Purification of n-vinylformamide |
Michael Kroener, Willi Schmidt, Alfred Oftring, Heinrich Hartmann |
1989-03-21 |
