Evonik Degussa Gmbh

Covestro Deutschland Ag

Evonik Operations Gmbh

Jürgen Erwin Lang

Georg Markowz

Rüdiger Schütte

Hartwig Rauleder

Christian Panz

Martin Trocha

Nicole Brausch

Imad Moussallem

Rainer Nicolai

Florian Paulat

Mario Gomez

Bodo Frings

Marcel Arndt

Claudia Fuhrmann

Dieter Oehm

Goswin Uehlenbruck

Hanns-Peter Popp

Ekkehard Müh

Reinhold Schork

Christian GÖTZ

Janaina Marinas PÉREZ

An apparatus and corresponding process can be used for producing nanocarriers and or nanoformulations and corresponding process products. The apparatus is characterized by a vertical orientation of the feed conduits leading to active element. The feed conduits are nested within one another and are axially movable in terms of their orientation to one another. The process provides for the mixing of at least two liquid phases with different acidities. The volume flow of the first phase is greater than that of the second phase.

Apparatus and process for producing nanocarriers and/or nanoformulations

An apparatus for chlor-alkali electrolysis, comprising a cathode half-cell, an oxygen-consuming electrode arranged therein, a conduit for supply of gaseous oxygen to the cathode half-cell and a conduit for purging the cathode half-cell with inert gas, enables the flexible use of power by a method in which chlorine is produced in the apparatus by chlor-alkali electrolysis, wherein, when power supply is low, the oxygen-consuming electrode is supplied with gaseous oxygen, and oxygen is reduced at the oxygen-consuming electrode at a first cell voltage, and when power supply is high, the oxygen-consuming electrode is not supplied with any oxygen, and hydrogen is generated at the cathode at a second cell voltage which is higher than the first cell voltage.

Device and method for the flexible use of electricity

The present invention relates to a process for preparing aqueous colloidal silica sols of high purity from silicate solutions, to aqueous colloidal silica sols with a specific profile of impurities, and to the use thereof. The invention further encompasses high-purity aqueous silica obtained as an intermediate in the course of the purification process, high-purity silicon dioxide obtainable by dewatering, and the use thereof.

Process for preparing aqueous colloidal silica sols of high purity from alkali metal silicate solutions

A method for modification of a methane-containing gas stream, comprising the steps of: i) withdrawal of at least one substream from a methane-containing gas stream; ii) treatment of the substream with an electrically generated plasma, generating a modified gas composition which comprises a lower fraction of methane than the methane-containing gas stream used and iii) return of modified gas composition into the methane-containing gas stream. This method makes possible the storage of excess power in a natural gas line grid.

Method for modification of a methane-containing gas stream

The invention relates to a process for the purification's of silicon tetrachloride or germanium tetrachloride contaminated with at least one hydrogen-containing compound, in which the silicon tetrachloride or germanium tetrachloride to be purified is treated in a targeted manner by means of a cold plasma and purified silicon tetrachloride or germanium tetrachloride is isolated from the phase which has been treated in this way. The present invention further relates to an apparatus for carrying out the process of the invention, which comprises a stock and vaporization unit for silicon or germanium tetrachloride (or) which is connected via a connecting line with the inlet of the reactor (or) with control unit (or) for producing the dielectrically hindered discharges whose outlet leads via a pipe either directly or indirectly via at least one further reactor () to a condensation unit (or) with downstream collection vessel (or) which is connected via an offtake line (or) to a distillation unit (or) and, if appropriate, is equipped with a feed line () to the unit ().

Process and apparatus for purifying silicon tetrachloride or germanium tetrachloride containing hydrogen compounds

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Karlsruhe, Germany

Jürgen Erwin Lang