Basf Se Corporation

Robin Thiele

Georg Sieder

Ute Lichtfers

Hugo Rafael Garcia Andarcia

Oliver Spuhl

Susanna Voges

Florian Vogt

Daniel Saelinger

Timo Frassetto

Gerhard Theis

Philip Muelheims

Christiane Alznauer

Sebastian Illies

Swapnil Yerande

Marcel Hofrichter

The present invention relates to a process for the preparation of 1-[4-nitro-2-(trifluoromethyl)-phenyl]-alkanones and substituted phenoxyphenyl ketones.

Process for the preparation of 1-[4-nitro-2-(trifluoromethyl)phenyl]-alkanones

A process for removing carbon dioxide (CO) by means of an absorption medium from a cycle gas system, wherein the COoccurs within a process in which, in the gas phase, ethylene is oxidized by oxygen (O) to ethylene oxide (EO) in the presence of a catalyst, in which, as by product, COis generated, by using as absorption medium an aqueous solution of one or more amines, wherein, for further purification of the cycle gas stream obtained downstream of the COabsorption step, this cycle gas stream is brought into intimate contact with water to which no mineral acid and no higher glycol was added.

[object Object]

Absorption medium for acid gases comprising an oligoamine (A) of the general formula (I) and a piperazine derivative (B) of the general formula (II) in which the weight ratio of oligoamine (A) to the piperazine derivative (B) is 0.2 to 25, and also process for removing acid gases from a gas stream by contacting the gas stream at a pressure of 0.05 to 10 MPa abs with an aqueous solution of said absorption medium which is brought to and maintained at a temperature of 20 to 80&#xb0; C.

Absorption medium and method for removing sour gases from fluid streams, in particular from flue gases

Absorption medium for acid gases comprising an oligoamine (A) of the general formula (I) and a primary or secondary alkanolamine (B) of the general formula (II) in which the weight ratio of oligoamine (A) to the primary or secondary alkanolamine (B) is 0.2 to 4, and also the process for removing acid gases from a gas stream by contacting the gas stream at a pressure of 0.05 to 10 MPa abs with an aqueous solution brought to and maintained at a temperature of 20 to 80&#xb0; C. of said absorption medium.

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Speyer, Germany

Robin Thiele