Basf Se Corporation

Basf Aktiengesellschaft

Ulrich Jäger

Ulrich Hammon

Sylke Haremza

Volker Schliephake

Claus Hechler

Klaus Joachim Müller-Engel

Jürgen Schröder

Ortmund Lang

Joachim Thiel

Jörg Heilek

Steffen Rissel

Friedrich-Georg Martin

Gunter Lipowsky

Volker Diehl

Peter Zurowski

Thorsten Friese

Till Blum

Virginie Bette

Tobias Johannes Korn

Frank Höfer

Imke Britta Müller

A process for inhibiting unwanted free-radical polymerization of acrylic acid present in a liquid phase P whose acrylic acid content is at least 10% by weight and which, based on the weight of the acrylic acid present therein, additionally comprises at least 100 ppm by weight of propionic acid and at least 100 ppm by weight of glyoxal, in which at least one chemical compound of the element copper is added to the liquid phase P, and the resulting liquid phases P to which a chemical compound of the element copper has been added.

Process for inhibiting unwanted free-radical polymerization of acrylic acid present in a liquid phase P

A process for inhibiting polymerization of (meth)acrylic acid and/or (meth)acrylic esters by introducing an oxygenous gas into the (meth)acrylic acid and/or the (meth)acrylic ester, in which the (meth)acrylic acid and/or the (meth)acrylic ester has a degree of purity of at least 95% and is in the liquid state.

Process for inhibiting polymerization of (meth)acrylic acid and/or (meth)acrylic esters

A process for cleaning apparatus in which (meth)acrylic acid-containing organic solvents have been treated and/or generated and contain fouling and/or polymer and residues of organic solvent, in which the apparatus contents are subjected to a steam distillation in the apparatus.

Cleaning of apparatus in which meth(acrylic) acid-containing organic solvents have been treated and/or generated

Growing community of inventors

Römerberg, Germany

Ulrich Jäger