80
Chapter 4 · There is More to Oleochemistry - Reactions at the Fatty Acid Alkyl Chain
4
then polymerized. We already came across this
procedure in the ethenolysis of MO to methyl
9-decenoate having a terminal double bond.
The situation is very similar with ricinoleic acid
a catalytic polyinsertion like the petrochemical alkenes ethene or propene. One trick is to
first produce a terminally unsaturated, more
active molecule from oleochemicals, which is
COOH
COOH
COOH
Disproportionation
[Pd]
H
COOH
13
11
9
Cyclization
COOH
15
12
9
Isomerization
Linolenic acid
. Fig. 4.24 Intramolecular cyclization of linolenic acid with subsequent disproportionation of the cyclohexadiene
derivatives
Siccatives
Natural resins
Air
Linseed
oil
Mixer
Pigments,Chalk
Grounded
cork
Linoleum cement
Jute fabric
T=80°C
T=60°C
Linoleum
Calender
Ripening
chamber
. Fig. 4.25 Simplified flow diagram of linoleum production