Evonik Degussa Gmbh

Min-Zae Oh

Franz-Felix Kuppinger

Alexander May

Martin Trocha

Imad Moussallem

Florian Klasovsky

Jens Haubrock

Thorsten Schwaertzke

Thorsten SCHWÄRTZKE

The present invention relates to a continuous process for hydrogenating halogen-containing silane compounds having at least three silicon atoms, in which at least one halogen-containing silane compound having at least three silicon atoms and at least one hydrogenating agent are converted continuously to form at least one hydridosilane compound having at least 3 silicon atoms and oxidized hydrogenating agent, and wherein oxidized hydrogenating agent is withdrawn and reduced, and the reaction product of this reduction reaction is sent back to the hydrogenation, to the hydridosilane compounds obtainable by this process and to the use thereof.

Method for hydrogenating higher halogen-containing silane compounds

Method for producing acrylic acid by dehydration of a Chydroxycarboxylic acid, characterized in that dehydration is achieved by contacting, at a temperature of more than 150&#xb0; C., the hydroxycarboxylic acid with a mixture which is liquid at this temperature and comprises at least one metal salt of a Chydroxycarboxylic acid, and water.

Method for producing acrylic acid

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Cologne, Germany

Min-Zae Oh