IMPROVEMENTS IN TREATING, REFINING OR BLEACHING COTTON SEED AND OTHER OILS
Year: 1884

page_text: We RICHARD BAYNES of 13, North John Street, Liverpool, in the county of
Lancaster, Commission Agent, and ALFRED BIGLAND of D 8, Exchange Buildings,
Liverpool aforesaid, General Broker do hereby declare the nature of the said
invention for "IMPROVEMENTS IN TREATING, REFINING OR BLEACHING COTTON
SEED AND OTHER OILS" to be as follows:-
This invention has for its object the decolourizing and purifying of vegetable and
other oils or fats by means of charcoal or other absorbent pulverulent or granular
material. I have found that if bone or charcoal and to a lesser degree ordinary
vegetable charcoal, pulverized coke, alumina, shale, chalk and other inert granular
absorbent material be thoroughly dried-say at a heat of 250° degrees Fahrenheit,
so as to eliminate the water and gas present in the pores it will when shaken up
with the oil or fat in a liquid condition abstract from the latter all the coloring
matter, and in the case of animal charcoal with most oils all the smell also. The oil
should preferably be heated to a degree about half way between its freezing and its
decomposing or volatilizing point, as although with most oils this is not absolutely
necessary yet by heating the action is considerably augmented.
The charcoal after having been used is freed from oil by steaming or boiling in
water, or it can be treated with bisulphide of carbon or other oil solvent and used
over again. When its pores are so clogged as to make it almost inactive, it can be
revivified by treatment with superheated steam or by recalcining.
The oil after being thoroughly agitated with charcoal is strained and the charcoal
afterwards pressed in a filter press. The last traces of charcoal dust are eliminated
by passing the oil through felt paper, cotton or the like.
This process is applicable for nearly all vegetable oils, especially cotton seed oil,
palm oil, and rape seed oil, also for fish oils and to a more limited extent for
petroleum and other mineral oils.
WP. THOMPSON & Co.,
Agents for the Applicant.

page_text: We, RICHARD BAYNES of 13 North John Street, Liverpool in the county of
Lancaster, Commission Agent, and ALFRED BIGLAND of D 8 Exchange Buildings,
Liverpool aforesaid, General Broker do hereby declare the nature of the said
invention for "IMPROVEMENTS IN TREATING REFINING, OR BLEACHING COTTON
SEED AND OTHER OILS," and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
This invention has for its object the decolourizing and purifying of vegetable and
other oils or fats by means of charcoal, or other absorbent, pulverulent or granular
material. I have found that if bone or charcoal, and to a lesser degree ordinary
vegetable charcoal, pulverized coke alumina, shale, chalk and other inert granular
absorbent material be thoroughly dried-say at a heat of 250 degrees Fahrenheit,
so as to eliminate the water and gas present in the pores, it will when shaken up
with the oil or fat in a liquid condition, abstract from the latter all the colouring
matter, and in the case of animal charcoal with most oils all the smell also. The oil
should preferably be heated to a degree about half way between its freezing, and its
decomposing or volatilizing point, as although with, most oils, this is not absolutely
necessary, yet by heating, the action is considerably augmented.
The charcoal after having been used is freed from oil by steaming or boiling in
water, or it can be treated with bisulphide of carbon, or other oil solvent, and used
over again. When its pores are so clogged as to make it almost inactive, it can be
revivified by treatment with superheated steam, or by recalcining.
The oil after being thoroughly agitated with charcoal is strained, and the charcoal
afterwards pressed in a filter press. The last traces of charcoal dust are eliminated
by passing the oil through felt, paper, cotton or the like.
This process is applicable for nearly all vegetable oils, especially cotton seed oil,
palm oil, and rape seed oil, also for fish oils, and to a more limited extent for
petroleum, and other mineral oils.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, we declare that what
we claim is :
1st The process of treating, refining, or bleaching cotton seed or other oils, which
consists in shaking them up in the heated state with inert porous granular matter
such as described, previously deprived of its moisture by heating to such degree as
shall ensure its volatilization, and lastly separating the oil by means of a filter
press, or equivalent mechanism.
2nd The improvement in the process of refining oil, which consists in thoroughly
shaking it up with a dry porous granular matter.
3rd The improvement in the process of refining oil which consists in thoroughly
shaking it up with a dry porous granular matter at a temperature below that at
which the oil volatilizes or decomposes, but at which it remains liquid.
Dated this nineteenth dar of Navomhan 1001. '
Dated this nineteenth den of N
day
ombe- 1001'
WP. THOMPSON & Co.,
Of 6, Lord Street, Liverpool,
and 323, High Holborn, London,
Patent Agents for the Applicant.