The Greenville times., 1882-09-16
COTTOx-SEED OIL.
A Plan that win EzahIs Every Planter 70
Mzks His 0wn Oil.

hAks His ovn OIL
The Planters Journal, for Sep
tember, contains a letter from Mr..
w. r. johnson, in which he gives
the following very important state
ment from Prof. Hilyard, of the
University of Mississippi:
Using the Plantation Cotton
Seed Oil thirty to thirty-fve gal
Ions of oil may be obtained, and
the hulls and cakes returned. This
requires well skilled labor. the
loss of the oil is in the hulls and
cake. For a days work, with a
5000 pound mill, the account would
stand: Forty-fve gallons of crude
oil for the cost of extraction.
While this would be much better
than the present method of selling
seed at 80 per ton, as the hulls
and cake, containing potash and
phosphorus acid, could be return
ed to the ground, but these hulls
and cake contain twenty-five gal-
Ions of oil, valuable as an article
of money as oil, but useless as a
fertilizer.
Isuggest a simpler plan by which
a ton of cotton-seed will give all
its oil, of sixty gallons, for market,
and allow the fertilizing ingredi-
ents of potash and phosphoric acid
to be returned to the soil, to make
the land richer for other crops of
cotton.
In a ton of good seed there are
sixty gallons of oil, distributed as
follows: Obtained from the kerr
mel by mill, thirty-fve gallons; !; re-
naming in the cake, twenty per
cent. of its weight in oil, say nine
teen gallons; in the hulls, six gal
Ions. place thirty five gallons,
what have understood the strong
est presses can extract; if less, a
larger percentage remains in the
cake. All the oil (six gallons) in
the hulls by presses is lost that
of the cake is sold, at present date,
for s27 90 per ton.
Now, If by benzine, sixty gallons
of pure oil can be obtained, and all
the "soil ingredients" of potash
and phosphoric acid returned to
the soil, it certainly presents a
subject of much interest to the
planters. That it will do this, any
person can determine with little
instruction or trouble. Let the
party wishing to examine the mat
ter take any given weight of good
seed, having the weight exact, then
record, to prevent mistake, crush
the seed, say through a coff'ee-mill,
if a small quantity, break the bot
tom out of a bottle, place the seed
in the bottle, a cork in its mouth,
the bottle inverted, pour benzine
on the seed until it covers them
next morning remove the cork and
allow the fluid to drip, then add
again benzine as long as the fluid
comes away colored. Now sepa-
rate the benzine from the dissolved
oil and weigh the resultant oil il
will be found to be in ratio sixty
gallons to a ton of seed; also, il
the seed from the bottle be per.
fectly dried and weighed, the loss
of weight will show the quantity
of oil extracted, and will be in
ratio of sixty gallons to a ton Of
seed.
The apparatus required would
not be expensive, nor require ex
traordinary ability to operate. A
crusber to break the seed, tanks
to leach them, and still to re
cover the benzine, would complete
the requirements. The whole cost
of expenses to extract the OF
would not exceed the value of the
oil now thrown away in the hulls
six gallons to each ton, and alst
pay for the loss of benzine in man
ipulation.
l may conclude by saying thai
the process would be similar tt
what has long been in vogue il
: Europe, to extract fat from ole
bones before making them into
bone-black, they using bi-sulphure
of carbon. As benzine is cheaper
than bi.sulphuret carbon, | woult
use it, though the carbon sulphu
ret would also extract all the OF
from kernels and hulls.
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