Wacker Chemie Ag

Steffen Dörrich

Richard Weidner

Harald Voit

Erich Schaffer

Martin Petri

Fridolin Stary

Verena Geiger

Branched organopolysiloxanes and organopolysiloxanes with low alkoxy content are produced in a first reaction unit by continuous feed of organohalosilanes and alcohol to a reaction vessel surmounted by a distillation column, the vessel containing an excess of water relative to the halogen content of the organohalosilanes. A second reaction unit for removing volatiles from the product from the first reaction unit is also preferably employed.

Method for continuously producing low-alkoxy branched siloxanes

The invention provides circular processes using siloxanes as high-temperature heat transfer fluid (HTF), wherein the siloxanes go over from the state of the supercooled liquid into the state of the high-density supercritical fluid by means of heat uptake without a phase transition and energy is then transferred as energy without a phase transition.

Recycle processes with supercritical siloxanes

The invention provides a process for removal of gaseous decomposition products from high temperature heat transfer fluid HTF of an operational solar thermal power plant having an HTF circuit,

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Munich, Germany

Steffen Dörrich