Improvements in the Method of Extracting Stearine and Oleine from Tallow, and in Apparatus therefor.
Year: 1892

page_text: Date of Application, 11th Apr., 1892-Accepted, 4th June, 1892
POLTIVATION.
Improvements in the Method of Extracting Stearine and Oleine
from Tallow, and in Apparatus therefor.
We, EDOUARD JOSEPH JEAN BAPTISTE BENOIT Gentleman and JoSÉ SOLER
Y VILA, Mechanic, both of 3 Rue de Belfort, Paris in the Republic of France,
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 :—
The object of this invention is to extract stearine and oleine from tallow, raw or
melted, without the use of a press.
To this end we employ the apparatus shown in the annexed drawing in which
Fig. 1 is a sectional view of the assembled apparatus, Fig. 2 a plan view
thereof Fig. 3 a detail view and Figs. 4 and 5 vertical section and plan of a
modified form of one of the vessels.
The apparatus comprises the series of vessels A. B. C there being however six
or seven vessels C to each pair of vessels A. B by reason of the longer time the
vessels C require to be employed during the process.
The vessels A and B are simple vats of wood lined with lead having perforated
coils of pipe in the bottom communicating by steam pipes with a main steam feed pipe.
The unions mn allow the coils ab to be disconnected. In each vat at the bottom
is an outlet cock kk for drawing off the water condensed from the steam blown
into the vats through the holes o in the coils a and b; and at a higher level in each
vat is an outlet cock above the water level and communicating by pipe qq¹
respectively, the vat A with B, B with C. The vats are preferably arranged one
above the level of the other so that the contents of A may be passed into B,
those of B into C. The vat C is placed in a hot chamber kept at about 30° C.
and may be of wood or any other suitable material. The bottom is concave and
pierced with conical holes c closed by rods of wood d which fit more or less closely
into the holes as occasion requires. For this purpose under each hole c is a cross
bridge carrying a set screw h which engages in the end of the rod d. By
screwing this set screw more or less in the one or other direction the rod dís
accurately adjusted in the hole so as to fit tightly therein or to leave so much
space all round as may be desired for the liquid in the vat C to flow out into a
channel E placed thereunder. The vat C is surrounded by a gas pipe with holes
or burners or may be warmed in any other desirable way to maintain the desired
temperature aforesaid.
The tallow to be treated is put in the vat A which is then heated by driving
steam therein until the tallow is melted, at this point about 1 to 3 per cent. of
powdered oxide of manganese is thrown in and the tallow is boiled for three
quarters of an hour to an hour. The oxide of manganese clarifies the tallow
which is left to stand at a high temperature for four to five hours previous to
being transferred to the vat B. The residue, water and refuse remaining in the
vat A is drawn off through the cock k. The material passed into vat B is again
boiled for about half an hour and 2 to 5% of cream of tartar added the cream
of tartar being previously mixed with a little hot water. The whole is allowed to
rest three or four hours during which the separation of the stearine from the
oleine commences. The mixture is then passed into vat C and there left from four
to six days standing until the separation is complete, whereupon the oleine is
drawn off through the boles c into the channel E while the stearine remains in the
vat as a solid.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is ;-
1. The method for the extraction of oleine and stearine from tallow and the
separation of these consisting in treating the latter with oxide of manganese and
cream of tartar and allowing same to rest as specified.
2. The apparatus herein described for carrying out the above process.
D
1
A
1 1000
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicants.