Our plants operate a wide array of chemical reactions, ensuring we can meet the most diverse demands for complex products. All our sites have developed one or more key technologies for which they are recognized as market leaders. Via our integrated set-up across the Group, we can produce at all scales, from lab samples to pilot quantities up to full industrial volumes.
If required, we explore viable alternative synthetic pathways or invest in specific equipment in accordance with your needs to ensure that the appropriate technology is always available.
Polymerization
Chlorination
With SOCl2, POCl3, etc.
With Cl2 gas
Photocatalyzed side chain chlorination
Bromination
Large-scale bromination
Bromination capabilities
Use of bromine within multistep syntheses
Diazotation and Nitration
Highly exothermic reactions on an industrial scale
Use of mixed acid
Challenging Nitrations
e.g., with mixed acid (HNO3/H2SO4) in large quantities
Sulfonation
Buss-loop reactor technology
Oleum and Chlorosulfonic Acid
Use in large batches
Oxidation
e.g. w/air, hydrogen peroxide up to 70%
Metal-catalyzed (Cu, Co etc.)
Alkylation
e.g. with Dimethylsulfate (Methylation)
alkyl halogenides
Sulfur Chemistry
Use of sulfides (e.g. sodium sulfide), sulfur and other sulfur derivatives in large commercial quantities
For pigments and dyes, polymers, agrochemical intermediates and ligands
Cryogenic reactions
Friedel-Crafts Chemistry
Handling of AlCl3 in large scale
Alkylation of aromatic compounds with propylene, isobutylene etc.
Halex reactions
Chlorine-fluorine exchange on an industrial scale
Phosphorous-containing compounds
E.g., ligands and catalysts in large commercial volumes
Complex metallocenes
E.g., ligands and catalysts in large commercial volumes
Hydrogenation in mid-scale (CBW)
Buss-loop reactor technology
Boronic acid synthesis
Through Grignard or Lithium routes
Grignard reagents and reactions
In-house production of Grignard compounds
Commercially available Grignard reagents
Handling of lithium reagents
Use of BuLi, MeLi, HexLi etc.
Low-temperature reactions
Pilot and commercial quantities
Continuous microwave reactor
Reactions with epichlorohydrine
Mid-scale
C2 backwards integration and chemistry
WeylChem International GmbH
WeylChem International GmbH
WeylChem International GmbH
