Year: 1888

page_text: of Germany, Chemist.
1, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
M.1.M.E., do hereby declare the nature of this invention to be as follows:-
:-
Up to the present time the wool-oil (Lanolin) is separated from the water in
which wool has been scoured or from emulsions of wool-grease in a mechanical way
which is not at all rational, as only a small percentage (according to experiments
about 2%) of the wool oil contained in the liquid is separated with the dirt in the
centrifugal machine.
The object of the present invention is to materially increase the separation.
The water in which wool has been scoured is collected in reservoirs in which it is
preferably heated up to 90° C. This heating is however not obligatory for the
operation hereafter described as the liquid can be treated with a lower temperature
or even down to the ordinary temperature. From the reservoirs the liquid is
conducted into a centrifugal machine to separate the dirt. As with a single spinning
the separation of the dirt is not complete, several concentric drums are arranged in
The liquid is
the centrifugal machine, each being lower than the next outer one.
introduced in the innermost drum and the greater part of the dirt is here separated.
The liquid is then conducted into the next drum and the following ones by means
of overflow pipes, in each drum less dirt being separated until the liquid is drawn off
free from dirt from the last one.
The percentage of wool oil in the dirt remaining behind is so small as mentioned
above that it is not worth while treating it for the extraction of the wool oil. The dirt
after drying can only be used as manure.
The water now free from dirt is conducted into a series of separators for the purpose
of separating it into liquids one rich in grease and one poor in grease. Supposing

page_text: the series of separators consists of four separators, the water will be introduced into
the second one and from this after separation the greasy emulsion will be conducted
into the third and the poor liquid into the first separator. Whatever greasy emulsion
is separated in the latter from the poor liquid is reconducted into the second or
eventually directly into the third separator.
The water of the first separator which is now almost free from grease may be
treated in the usual manner for the separation of the soaps contained therein. The
poor liquid of the third separator is reconducted into the second or the first according
to the percentage of grease still contained therein.
The greasy emulsion separated in the third separator is conducted into the fourth
from which the greasy emulsion separated here is conducted into settling reservoirs,
while the poor liquid is reconducted into the third or second separator.
In the settling reservoirs in a state of repose the wool oil will rise to the surface
whence it is removed. The liquid remaining in the settling reservoirs is treated with
fat solving substances and the fat then extracted by distilling.
In this instance i.e. using four separators the operation will be a continuous one.
If less than three separators are used, the operation will be partly or quite periodical
without altering the principle of the process..

page_text: A communication from USKAR KORSCHELT, O1 12, Daiser Drasse, p
of Germany, Chemist.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
M.I.M.E., 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:-
Up to the present time the wool-oil (Lanolin) is separated from the water in which
wool has been scoured or from emulsions of wool grease in a mechanical way which
is not at all rational, as only a small percentage (according to experiments about
2 per cent.) of the wool-oil contained in the liquid is separated with the dirt in the
centrifugal machine.
The object of the present invention is to materially increase the separation.
The water in which wool has been scoured is collected in reservoirs in which it is
preferably beated up to 90° C. This heating is however not obligatory for the
operation hereafter described as the liquid can be treated with a lower temperature or
even down to the ordinary temperature. From the reservoirs the liquid is conducted
into a centrifugal machine to separate the dirt. As with a single spinning the
separation of the dirt is not complete, several concentric drums are arranged in the
The liquid is
centrifugal machine, each being lower than the next outer one.
introduced in the innermost drum and the greater part of the dirt is here separated.
The liquid is then conducted into the next drum and the following ones by means
of over-flow pipes, in each drum less dirt being separated until the liquid is drawn off
free from dirt from the last one.
The
The percentage of wool-oil in the dirt remaining behind is so small as mentioned
above that it is not worth while treating it for the extraction of the wool-oil.
dirt after drying can only be used as manure.
The water which is now free from dirt is conducted into a series of separators for
the purpose of separating it into liquids one rich in grease and one poor in grease.
Supposing the series of separators consists of four separators, the water will be
introduced into the second one and from this after separation the greasy emulsion
will be conducted into the third and the poor liquid into the first separator. Whatever
greasy emulsion is separated in the latter from the poor liquid is reconducted into
the second or eventually directly into the third separator.
The water of the first separator which is now almost free from grease may be
treated in the usual manner for the separation of the soaps contained therein. The
poor liquid of the third separator is reconducted into the second or the first according
to the percentage of grease still contained therein.

page_text: The greasy emulsion separated in the third separator is conducted into the fourth
from which the greasy emulsion separated here is conducted into settling reservoirs,
while the poor liquid is reconducted into the third or second separator.
In the settling reservoirs in a state of repose the wool oil will rise to the surface
whence it is removed. The liquid remaining in the settling reservoirs is treated with
fat solving substances and the fat then extracted by distilling.
In this instance i.e. using four separators the operation will be a continuous one.
If less than three separators are used, the operation will be partly or quite periodical
without altering the principle of the process.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, as communicated to
me by my foreign correspondent I declare that what I claim is ;-
The method of extracting or winning wool oil (Lanolin) mechanically by extracting-
in one or more separators-from the water in which wool has been scoured or from
other wool emulsions, a rich fatty emulsion from which the wool oil separates auto-
matically substantially as specified.