STUDI KINETIKA DEHIDRASI RISINOLEAT DARI MINYAK JARAK
ABSTRACT: Dehydration of
ricinoleic of castor oil into mixed of linoleic acid (LA) and conjugated
linoleic acid (CLA) named DCO (dehydrated Castor Oil) was conducted by using
P2O5 at temperature 125°C and 175°C were held time variety at 1, 2, 3 and 4
hour. Dehydration was maintained under reduced pressure 50 to 70 mmHg, gentle
bubbling with Nitrogen , magnetically stirred between 800 to 1000 rpm and 0.1 g
Zn powder as antipolymerization agent. The concentration changes of the
ricinoleic and DCO followed by contrentation GC. The elucidation of ricinoleic,
LA and CLA were analyzed by GC-MS. The result showed that reaction was first
order with rate constant (k) was 1.0 × 10-2 h-1 at 125°C and 0.9631 h-1 at
175°C and energy of activation (Ea) was 191.152 kJmol-1and
Penulis: M Sitorus, S Ibrahim,
H Nurdin, D Darwis
Kode Jurnal: jpkimiadd100174
