updated 4/11/24


                                     FROM ISOPRENE TO CITRAL



1  Isoprene to "isoprene hydrochloride"
2 "Isoprene hydrochloride" to  methyl heptenone "MH"
3 Methyl heptenone to  dehydrolinalool
4 Dehydrolinalool to citral


 
                                                               _____________________________

1  Isoprene to "isoprene hydrochloride"



Reaction temp .......................20/30°c
Solvent ..................................water
Catalyst ..................................proprietary

chemical yield based on isoprene  85%

More details available on request






The process can be done batchwise  as shown herafter , more details on request








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2 "Isoprene hydrochloride" to  methyl heptenone "MH"


Reaction mode :.....................Batchwise
Reaction temp .......................45°c
Solvent ..................................acetone
Catalyst ..................................proprietary


Purification mode ..................continuous

chemical yield based on "isoprene hydrochloride"...... 85%








The distillation can be also done with only 1 column  the overall productivity being lowered  as for the investment








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3 Methyl heptenone to  dehydrolinalool
l
Reaction mode :.....................Continuous
Reaction temp .......................20°c
Solvent ..................................proprietary
Catalyst ..................................NaOH
pressure ..................................4 PSIG

Purification mode ..................continuous

chemical yield based on methyl heptenone...... 92%






The same process can be done batchwise  using a single  reactor  as indicated below





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Dehydrolinalool (DHL)to citral

Reaction mode :.....................Batch
Reaction temp .......................160°
Solvent ..................................DHL
Catalyst ..................................Powder ,proprietatry
pressure ..................................250 Torr

Purification mode ..................continuous

chemical yield based on DHL ...... 70 %




The reaction can be done in continuous on a supported catalyst as show below