Epoxydation catalyst systems and process for preparing epoxides
AssigneeCovestro Deutschland AG
InventorsMatthias Leven, Jens Langanke
Life of this patent
Estimating the term…
Abstract
The invention relates to a first epoxydation catalyst system comprising a mixture of a metal salt of the metals chromium, manganese, molybdenum, lead and/or bismuth and a hydroxide as well as of a redox-active compound. The invention also relates to an additional second epoxydation catalyst system comprising a mixture of an additional metal salt, iodine and a hydroxide. Furthermore, the invention relates to a process for preparing epoxides comprising the oxidative reaction of an alkene in a reactor in the presence of the first epoxydation catalyst system or the second epoxydation catalyst system.
Claims20
An epoxidation catalyst system comprising:
- a) a mixture or a reaction product of:
- a-1) a metal salt of the metals chromium (Cr), manganese (Mn), molybdenum (Mo), lead (Pb) and/or bismuth (Bi);
- and
- a-2) a hydroxide;
- and
- b) a redox-active compound.
An epoxidation catalyst system comprising:
- a) a mixture or a reaction product of:
- c-1) a metal salt,
- c-2) iodine (I2), and
- c-3) a hydroxide;
- and
- b) optionally a redox-active compound.
Dependencies are inferred from the claim text.