Issued Patents 2011
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8076510 | Process for starting-up a heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid or of methacrolein to methacrylic acid | Ulrich Hammon, Thorsten Friese, Jochen Petzoldt, Ulrich Cremer, Andreas Raichle | 2011-12-13 |
| 8025846 | Process for introducing a portion withdrawn from at least one production charge of annular coated catalysts K into a reaction tube of a tube bundle reactor | Ulrich Cremer, Hagen Wilmer, Andreas Raichle, Hermann Petersen, Holger Borchert +1 more | 2011-09-27 |
| 7947845 | Process for purifying removal of acrylic acid, methacrylic acid N-vinylpyrrolidone or P-xylene crystals from their suspension in mother liquor | Joerg Heilek, Ulrich Hammon, Dieter Baumann | 2011-05-24 |
| 7910766 | Preparation of at least one partial oxidation and/or ammoxidation product of a hydrocarbon | Goetz-Peter Schindler, Otto Machhammer, Claus Hechler, Jochen Petzoldt, Christoph Adami +1 more | 2011-03-22 |
| 7897812 | Process for preparing acrolein or acrylic acid or a mixture thereof from propane | Otto Machhammer, Martin Dieterle | 2011-03-01 |
| 7884238 | Process for the long-term operation of a heterogeneously catalyzed partial gas phase oxidation of an organic starting compound | Ulrich Cremer, Martin Dieterle | 2011-02-08 |