Castor Oil Derivatives Plant
There are several processes to be followed in
castor oil processing like seed crushing, seed cleaning and purification of
crushed oil. The crushed oil is purified to get BSS Grade oil that is
further used in the production of DCO (Dehydrated Castor Oil), HCO
(Hydrogenated Castor Oil) and other value added derivatives like Undecylinic
Acid and Heptaldehyde. If the castor oil is deodorized effectively, then,
undesirable odors can be completely removed, resulting in the production of
medicinal grade castor oil.
Our castor oil plants ensure hygienic extraction along with ease of
operation. In these plants, one can achieve better biological value of meal,
better desolventisation and more stable moisture. We make sure to use only
standard quality of raw materials to manufacture these plants. This imparts
sturdiness and resistance to the plant against corrosion, thus, ensuring
long service and economical run in the industry. The castor oil plants are
completely automatic in their operations and are fully suitable for both
medium as well as large scale industrial processing.
Features
- Easy to operate
- Specially designed for high flow rate
- Ensure better desolventisation
- Convenient to clean
- Continuous process and fully automatic
Process Description For Castor Oil And Its Derivatives
Process Description For Hydrogenated Castor Oil [HCO]
- The raw material, bleached castor oil (BBS grade) is processed under
vacuum condition at a temperature of around 160 degree Celsius in
presence of nickel catalyst
- As soon as the raw material reaches its required temperature, the
vacuum is stopped and hydrogen is fed, while the stirrer is still
operating
- The hydrogen feed is closed as the required degree of hydrogenation
is achieved and after this, hydrogenated product is started cooling
- As the product temperate reaches around 100°C, the final product
gets filtered, cooled and then conveyed to flaking unit for flaking and
bagged
Process Description For Dehydrated Castor Oil [DCO]
Castor oil of
feed stock grade is pumped into the reaction vessel through de-aerator
vessel. In this vessel, the oil gets dried and completely free from air. In
the reaction vessel, a higher temperature and vacuum is maintained in which,
continuous re-circulation of oil in the presence of a catalyst is done.
This helps in the dehydration of castor oil, increases the un- saturation
level and brings down the hydroxyl content of castor oil. All this process,
tries to maintain the quality of the product uniform. Finally, the oil is
passed through heat exchangers for cooling and then catalyst filtration as
soon as the required degree of un-saturation and dehydration is met. Post
filtration, the product is conveyed to a decolorizing vessel as to remove
the excess color from the oil.
Process Description For 12 - Hydroxy Stearic Acid [12-HSA]
- Under certain parameters, the hydrogenated castor oil, generated from
HCO plant is converted to soap by mixing it with caustic lye
- The converted HCO soap is then conveyed to acidulation vessel, in
which it is mixed with dilute sulphuric acid, thus converting the soaps
into fatty acids
- The acid water left out, with 8% - 10% of glycerine, is then drained
out and finally stored for the recovery of glycerine
- The acidulated product (12-hydroxy stearic acid) from the
acidulation vessel, is fed into drier, in which, it gets completely
dried up through controlled heating
- The dried 12-HSA is further cooled and is taken to flaking unit
for flaking
Process Description For Castor Oil Polyols Plant
Refined Castor Oil
is taken from the storage tank and then pumped into the premixing vessel. In
the pre- mixing vessel, the catalysts are dropped and mixed properly through
an attached auto feeding system. After this, the material flows to the
preheating vessel through which, it is pumped into high pressure reactor. In
the reactor, the propylene oxide is taken through pressure reducing valve at
a pressure of about 6 bar. In the high pressure reactor, refined castor oil
is mixed with propylene oxide that is circulated continuously through
cooling heat exchanger with a pump. The continuous circulation results in
effective heat and mass transfer as to produce qualitative product.
The material further undergoes through the process of aging and then pumped
to the reactor vessel. The acid is then taken into the acid dosing tank
through the dosing pump and is finally dropped into the reactor vessel. In
the reactor, it gets neutralized and then pumped to the pressure leaf
filters for filtering the solids materials. In the final step, a clear
liquid is obtained and then stored in a separate storage tank.
The crude polyols is taken from the storage tank and is pumped into the
reactor vessel in which the solvent is also added. All the materials are
mixed properly before sending into the vacuum drying unit. After complete
removal of all the residual impurities and volatiles, purified polyols are
obtained and stored in a separate storage tank. The overhead volatile matter
produced from the vacuum drying unit are condensed and collected in a
separate storage tanks.
The volatile matter is further pumped into the solvent distillation reactor
from which the solvent is further recovered and reused in the process.