Process for carrying out chemical reactions using a microlaminar mixer

US6299657A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Klaus Schubert · Karlsruhe, DE
• Wilhelm Bier · Blankenloch, DE
• Gerd Linder · Karlsruhe, DE
• Erhard Herrmann · Leverkusen, DE
• Bernd Koglin · Bensberg, DE
• Thomas Menzel · Hilten, DE
• Christine Maul · Neunburg vorm Wald, DE

Key dates

• Filing date: Oct 15, 1999
• Grant date: Oct 9, 2001
• Expiry date: Oct 15, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/2564
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

In the reaction process, at least two educts A, B are divided by a system, assigned to each of them, of slit-like microchannels 1a, 1b into spatially separate fluid lamellae, which then emerge into a common mixing and reaction space 4. The fluid lamellae here have a thickness <1,000 .mu.m, preferably <100 .mu.m, at a width thickness ratio of at least 10. It is essential here that educts A, B can emerge as thin fluid lamellae 6a, 6b into the mixing/reaction space 4, each fluid lamella 6a of an educt A being led into the mixing/reaction space 4 in the immediate vicinity of a fluid lamella 6b of another educt B. The adjacent fluid lamellae 6a, 6b then subsequently mix by diffusion and/or turbulence. As a result, the mixing operation is accelerated substantially compared with conventional reactors. In the case of rapid chemical reactions, the formation of undesirable by-products or secondary products is largely prevented in this manner.