Back to results
US 2014/0212957 A1Published application
Production of optically pure propane-1,2-diol
AssigneeThyssenkrupp Industrial Solutions AG
InventorsWolfgang Tietz, Joachim Schulze, Armin Boerner, Ivan Shuklov, Klaus Kuehlein
Life of this patent
Estimating the term…
Abstract
A method for producing optically pure propane-1,2-diol, including the method steps: a. hydrogenation of lactides, metal-catalysed heterogenous catalysis being carried out in the presence of hydrogen, a crude product containing propane-1,2-diol being produced, and b. dynamic, kinetic racemate resolution, propane-1,2-diol of an optical purity in the range of ≧99% e.e. being produced.
Claims23
Process for the production of optically pure propane-1,2-diol comprising the following process steps:
- Hydrogenation of lactides, wherein a metal-catalysed heterogeneous catalysis is carried out in the presence of hydrogen, a raw product containing propane-1,2-diol being produced, and
- Dynamic kinetic racemic resolution, in which optically pure propane-1.2-diol is produced within a range of ≧99% e.e.
Dependencies are inferred from the claim text.