| US 7,601,791 B2 | ||
| Process for processing mixtures in the presence of fluorinated vinyl polymer packings | ||
| Stephan Beutlhauser, Mehring (Germany); Helmut Enthammer, Braunau (Austria); and Klaus Kaeppler, Burghausen (Germany) | ||
| Assigned to Wacker Chemie AG, Munich (Germany) | ||
| Filed on Jul. 05, 2006, as Appl. No. 11/481,113. | ||
| Claims priority of application No. 10 2005 032 947 (DE), filed on Jul. 14, 2005. | ||
| Prior Publication US 2007/0015891 A1, Jan. 18, 2007 | ||
| Int. Cl. C08G 77/06 (2006.01) | ||
| U.S. Cl. 528—12 [556/450; 556/452] | 17 Claims |
| 1. In a process for the preparation and processing of organopolysiloxanes wherein organochiorosilanes are hydrolyzed with water in the presence of hydrochloric acid to produce a crude hydrolysate comprising chlorine-containing polyorganosiloxanes and gaseous HCl or in a process for processing to recovering alcohol from acidic HCl, alcohol, and water mixtures containing siloxanes by distillation, the improvement comprising conducting one or more steps in the process in a column containing packings comprising fluorinated vinyl polymers at a temperature of 70° C. to 200° C. |