A Process for Bleaching Palm Oil and other Vegetable Oils.
Year: 1890

page_text: Date of Application, 27th Oct., 1890
Complete Specification Left, 25th July, 1891-Accepted, 19th Sept., 1891
PROVISIONAL SPECIFICATION.
A Process for Bleaching Palm Oil and other Vegetable Oils.
We, EUGENE HERMITE, EDWARD JAMES PATERSON, and CHARLES FRIEND
COOPER, all of Pownall Road, Dalston in the County of Middlesex, Electrical
Engineers, do hereby declare the nature of this invention to be as follows:-
"
This invention relates to the treatment of palm oil and other vegetable oils with
electrolysed chlorides for the purpose of bleaching them. The chlorides employed
are preferably mixtures of magnesium chloride with sea salt, but other chlorides,
such as calcium chloride with or without admixture of sodium chloride, may be
employed. The chlorides are preferably electrolysed before being mixed with the
oil, but they may be electrolysed when they are mixed with it.
When palm oil is to be treated, it is melted and kept melted in a steam jacketted
vessel in which it is actively agitated with the solution of the electrolysed chlorides.
After a time the whole is allowed to cool, the palm oil forming a cake on the
surface, which, if it is not sufficiently bleached by one operation, may be similarly
treated again. After removal of the cake of palm oil, the chlorides may be again
electrolysed to serve again for bleaching. The bleached oil forming an emulsion
with the air and liquid sets in a frothy condition; in order to make it resume its
ordinary condition, it may be fused and agitated with hot water acidulated with
hydrochloric, sulphuric or acetic acid.
By this treatment the frothy character is removed and the oil on cooling
becomes a solid cake floating on the liquid. A similar treatment effects the
bleaching of other vegetable oils, those which are liquid at ordinary temperatures
being merely agitated with the electrolysed chlorides.
The electrolysing of the chlorides is preferably effected by means of apparatus
such as are described in a previous Specification No. 1993 of 1887.
Dated this 27th day of October 1890.
ABEL & IMRAY,
Agents for the Applicants.
COMPLETE SPECIFICATION.
A Process for Bleaching Palm Oil and other Vegetable Oils.
We, EUGENE HERMITE, EDWARD JAMES PATERSON and CHARLES FRIEND
COOPER, all of Pownall Road, Dalston, in the County of Middlesex, Electrical
Engineers, do hereby declare the nature of this invention and in what manner the
same is to be performed to be particularly described and ascertained in and by the
following statement :-
This invention relates to the treatment of palm oil and other vegetable oils with
electrolysed chlorides, for the purpose of bleaching them. The chlorides employed
are preferably mixtures of magnesium chloride with sea salt, but other chlorides,
such as calcium chloride, with or without admixture of sodium chloride, may be
employed. The chlorides are preferably electrolysed before being mixed with the
oil, but they may be electrolysed when they are mixed with it.
When palm oil is to be treated, it is melted and kept melted in a steam jacketted
vessel in which it is actively agitated with the solution of the electrolysed chlorides.
After a time the whole is allowed to cool, the palm oil forming a cake on the
surface which, if it is not sufficiently bleached by one operation, may be similarly
treated again.
After removal of the cake of palm oil, the chlorides may be again electrolysed
Price 4d 1

page_text: to serve again for bleaching. The bleached oil, forming an emulsion with the air
and liquid, sets in a frothy condition; in order to make it resume its ordinary
condition, it may be fused and agitated with hot water acidulated with hydro-
chloric, sulphuric or acetic acid.
By this treatment the frothy character is removed and the oil on cooling becomes
a solid cake floating on the liquid. A similar treatment effects the bleaching of
other vegetable oils, those which are liquid at ordinary temperatures being merely
agitated with the electrolysed chlorides.
The electrolysing of the chlorides is preferably effected by means of apparatus
such as are described in a previous Specification No. 1993 of 1887.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, we declare that what we
claim is :-
The process for bleaching palm oil and other vegetable oil by agitating with
electrolysed chlorides, substantially as herein described.
Tad this 95th day of July 1001
ABEL & IMRAY,
Agents for the Applicants.