25.11.2013
- Kohlechemie AG, a company collectively founded by a consortium of mining companies in 1927, was renamed Ruhrchemie in April 1928, and began production of fertilizer in 1929 at its...
27.09.2013
- On their anniversary "75 years of oxo synthesis", Oxea and the Association of German Chemists (GDCh) recognized the pioneering work of Dr. Otto Roelen in the field of...
25.09.2013
- On September 20, 1938, the German chemist, Dr. Otto Roelen, then the research director at Ruhrchemie in Oberhausen (now Oxea), filed a patent application for the oxo synthesis. His...
