| 10703630 |
Process for preparing chlorine from HCI |
Martin Karches, Kati Bachmann, Lothar Seidemann, Knud Jacobsen |
2020-07-07 |
| 9610567 |
Process for regenerating a catalyst comprising ruthenium oxide for the oxidation of hydrogen chloride |
Guido Henze, Heiko Urtel, Martin Karches, Thorsten von Fehren, Toni Kustura |
2017-04-04 |
| 9156024 |
Catalyst comprising ruthenium and silver and/or calcium for the oxidation of hydrogen chloride |
Guido Henze, Heiko Urtel, Martin Karches |
2015-10-13 |
| 8440856 |
Method for treating residues from the production of isocyanates |
Michael Bock, Eckhard Stroefer |
2013-05-14 |
| 8252253 |
Process for recovering ruthenium from used ruthenium oxide-comprising catalysts |
Guido Henze, Heiko Urtel, Martin Karches |
2012-08-28 |
| 8163265 |
Mechanically stable catalyst based on alpha-alumina |
Olga Schubert, Lothar Seidemann, Martin Karches, Thomas Grassler, Martin Sohn |
2012-04-24 |
| 8097232 |
Method for producing chlorine |
Armin Diefenbacher, Hartwig Voss, Olga Schubert, Lothar Seidemann, Martin Karches +2 more |
2012-01-17 |
| 7927080 |
Method for operating a liquid ring compressor |
Christian Müller, Martin Fiene, Oliver Huttenloch, Eckhard Stroefer |
2011-04-19 |
| 7910517 |
Mechanically stable catalyst based on alpha-alumina |
Olga Schubert, Lothar Seidemann, Martin Karches, Thomas Grassler, Martin Sohn |
2011-03-22 |
| 7897806 |
Method for producing polyisocyanates |
Thorsten Rohde, Eckhard Stroefer, Jochem Henkelmann |
2011-03-01 |
| 7819949 |
Process for extracting (chlorinated) hydrocarbon-free hydrogen chloride and phosgene-free (chlorinated) hydrocarbons from a hydrogen chloride stream containing (chlorinated) hydrocarbons and phosgene |
Heiner Schelling, Juergen Ciprian, Filip Deberdt, Martin Karches, Olga Schubert |
2010-10-26 |
| 7736598 |
Reactor and method for producing chlorine from HCl |
Lothar Seidemann, Olga Schubert, Eckhard Stroefer, Martin Fiene, Christian Walsdorff +1 more |
2010-06-15 |
| 7704469 |
Method for the recovery of ruthenium from used ruthenium oxide-containing catalysts |
Olga Schubert, Heiko Urtel, Michael Hesse, Claus Hofmann, Iris Kristalis |
2010-04-27 |
| 7659430 |
Method for separating hydrogen chloride and phosgene |
Andreas Woelfert, Carsten Knoesche, Hans-Juergen Pallasch, Eckhard Stroefer, Hans-Martin Polka +1 more |
2010-02-09 |
