Basf Se Corporation

Tilo John

Heiko Maas

Andreas Kern

Wolfgang Steiner

Joaquim Henrique Teles

Peter Zehner

Kai Gumlich

Martin Schäfer

Steffen Oehlenschläger

Michael Nilles

Christian Kuhrs

Hans-Peter Schildberg

Stefan Berg

Stephan Lamm

Hans-Ulrich Pröbstle

Hans-Ulrich Proebstle

Process for preparing melamine by converting urea in the presence of a solid catalyst in one reactor or in a plurality of reactors connected in series in the temperature range from 370&#xb0; C. to 430&#xb0; C., cooling and filtering the gas formed in the urea conversion, removing the melamine by desublimation and recycling a portion of the gas present after the melamine removal ('cycle gas') into the reactor or the reactors, which comprises performing all of the above stages at a pressure in the range from 4 bar abs. to 10 bar abs.

Process for preparing melamine

The invention relates to a process for oxidizing at least one organic substance with oxygen, which comprises the following steps: The invention further relates to an apparatus for performing the process.

Process and apparatus for oxidizing organic compounds

A process for the preparation of melamine by decomposition of urea with the use of a catalyst, the catalyst comprising

Method for producing melamine

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Speyer, Germany

Tilo John