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Bleaching & De-Coloration

Appropriate photoreactor

Falling-Film Photoreactor

 

Fragrances

Appropriate photoreactor

Side-Loop Photoreactor

Plug-Flow Photoreactor

 

Hormons & Steroids

Appropriate photoreactor

Falling-Film Photoreactor

 

Monomers

Appropriate photoreactor

Falling-Film Photoreactor

 

Polymers

Appropriate photoreactor

Side-Loop Photoreactor

 

Vitamin D2/D3

Appropriate photoreactor

Falling-Film Photoreactor

 

Reactions

Chlorination

Appropriate photoreactor

Side-Loop Photoreactors

 

Fluorination

Appropriate photoreactor

Side-Loop Photoreactor

 

Photo-Bromination

Appropriate photoreactor

Side-Loop Photoreactors

 

Photo-Chlorination

Appropriate photoreactor

Side-Loop Photoreactor

 

Photocatalysis

Appropriate photoreactor

Agitated Photoreactors

 

Photohalogenations

Appropriate photoreactor

Agitated Photoreactors

 

Use a Side-Loop Photoreactor for

Active pharmaceutical intermediates (API), e.g. synthesis of Artemisinin (antimalarial drug), singlet oxygen reaction

Brominated intermediates for synthesis (e.g. substituted benzylbromides)

Chlorinated intermediates for synthesis (e.g. benzylchloride, benzalchloride, methylchloride)

Chlorinated solvents (e.g. dichloromethane, chloroform, tetrachloromethane)

Fluorinations, Sulfoxidations, Nitrosylations

Fragrances (e.g. singlet oxygen reaction: Rose oxide)

Intermediates for diagnostics (e.g. by photo- bromination or photo-iodination)

Plant treatment intermediates (e.g. pinacols by photo-hydrodimerisation)

Polymer and co-polymer specialities (photopolymerization in homogeneous (liquid), heterogeneous (liquid/liquid and liquid/gas (aerosols) media)

Polymer functionalization (e.g. synthesis of API carriers, photo-halogenations, photooxidations in solid/liquid or sold/gas microheterogeneous media)

Safety agents (e.g. odour additives for gases)

Vitamins (e.g. pre-Vitamin D2 or D3 and derivatives by electrocyclic reaction or Vitamin A by cis-trans isomerization)

Use a Falling-Film Photoreactor for

API synthesis

Aqueous dispersion of polymers that can be solidified into rubber (Latex)

Bleaching

Monomer modification

Photooxidations implying radical intermediates (e.g. AOP)

Preparative photochemistry in general implying strongly absorbing substrates and/or radical imtermediates

Recovery of precious metals

Vitamin D production (prone of filming if high radiant power densities are applied)

Use a Plug-Flow Photoreactor for

API and intermediate synthesis (e.g. Iribotecan by Cis-Trans Isomerization and Artemisinin by Singlet Oxygen Reaction)

Fragrances (e.g. Rose Oxyde via Singlet Oxygen Reaction)

Mercaptan synthesis (e.g. Cyclohexylthiol via H2S addition)

Use Agitated Photoreactors for

API carriers and particle modifications (processes in heterogeneous (solid/liquid) media)

Material modifications (processes in heterogeneous – liquid/liquid and solid/liquid – media (e.g. chlorinated rubbers, chlorinated PVC (C-PVC))

Nitrosylations

Photocatalyzed and photo-redox processes (processes in heterogeneous – solid/liquid – media)

Photohalogenations

Photopolymerizations (radical and cationic) in heterogeneous – liquid/liquid and solid/liquid – media) (e.g. Caprolactam as pre-cursor of Nylon 6, Lauryllactam as pre-cursor of Nylon 12, Polyacrylates, Polystyrenes and co-polymers, mini-emulsions with monomer functionalization)

Sulfoxidations and sulfochlorinations (e.g. Sulphochlorinate polyethylene)

Use Flat-Bed Photoreactors for

API and intermediate synthesis (e.g. Iribotecan by Cis-Trans Isomerization and Artemisinin by Singlet Oxygen Reaction)

Mercaptan synthesis (e.g. Cyclohexylthiol via H2S addition)

Fragrances (e.g. Rose Oxyde via Singlet Oxygen Reaction)

(Metalla)photoredox Cross-couplings

Fluoroalkylations

Halogenations

C-H Functionalizations

API & intermediate synthesis with high abs. coefficient

Photooxidations implying radical intermediates (e.g. AOP)

Steroid-hormone synthesis (e.g., production of Vitamin D derivatives)

Production of vitamins (e.g., Vitamin A)

Fluoroalkylations (e.g., Trifluoromethylation with the Langlois reagent)

Cycloadditions