Wacker Chemie Ag

Consortium Fur Elektrochemische Industrie Gmbh

Christoph Rüdinger

Hans-Jürgen Eberle

Johann Weis

Harald Voit

Ragnar Bogner

A process for preparing isocyanoatoorganosilanes by thermolysis of carbamatoorganosilanes in the presence of microwave radiation, optionally employing homogeneous or heterogeneous catalysis, provides isocyanatoorganosilane product in higher yield than prior art thermolyses, and with fewer byproducts. A continuous process is thus possible.

Method for the production of isocyanatoorganosilanes

Isocyanatosilanes are prepared by themolyzing carbamatosilanes in a fluidized bed reactor containing fluidized solid particles. The process substantially avoids the deposition of solid reaction by products in the reactor.

Method for producing isocyanate-organosilanes

A process for preparing saturated carboxylic acids having from one to four carbon atoms by gas-phase oxidation, includes reacting 2-butanone with oxygen over a coated catalyst which is an inert nonporous support body and a catalytically active mixed oxide composition comprising (a) one or more oxides selected from the group consisting of titanium dioxide, zirconium dioxide, tin dioxide and aluminum oxide, and (b) from 0.1% to 1.5% by weight, based on the weight of the component (a) and per m/g of specific surface area of the component (a), of vanadium pentoxide, applied to the external surface of the support body.

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Starnberg, Germany

Christoph Rüdinger