Method for the Separation of Cholesterin Fats from Commercial Wool Fats and from the Lyes of Wool-washing Works.
Year: 1886

page_text: Date of Application, 7th May, 1886.
Complete Left, 7th Feb., 1887.
Complete Accepted, 8th Mar., 1887.
PROVISIONAL SPECIFICATION.
Method for the Separation of Cholesterin Fats from Commercial
Wool Fats and from the Lyes of Wool-washing Works.
We, HUGO WALDEMAR LANGBECK and RUDOLF EDUARD RITSERT, both of
No. 127 Leman Street, in the City of London, Chemists, do hereby declare the
nature of this invention to be as follows:-
Our invention is based on the discovery that the true cholesterin fats (ethers of
cholesterin and isocholesterin, with fatty acids) are with difficulty soluble in alcohol,
while all the other substances contained in the raw wool fat, such as free fatty acids,
free cholesterin and free isocholesterin, as well as the volatile ethers of the fatty acids,
are readily soluble in alcohol when heated.
In carrying out our invention we treat the raw wool fat, freed from water and dirt,
repeatedly with boiling alcohol containing about 10 per cent of ether, and we separate
the resulting warm alcoholic solution of the free fatty acids, free cholesterin and
isocholesterin and volatile ethers of the fatty acids, containing also a small quantity of
cholesterin fats, from the undissolved cholesterin fats.
The separated cholesterin fats are then either heated by means of steam to drive off
the traces of alcohol or methylated alcohol, if this has been used, or the cholesterin
fats are distilled over by means of superheated steam.
According to another modification of the process, we dissolve the whole of the
commercial wool fat in ether, and from this solution we precipitate the cholesterin fats
by the addition of alcohol.
The cholesterin fats thus obtained are free from fatty acids and their volatile ethers,
as also from free cholesterin and free isocholesterin. This purified product containing
about 20 per cent of water, we term "cholesterinol."
Instead of using commercial wool fat, our above described invention can be applied
to the lyes obtained from wool-washing works.
A
די ודז
זו
ABEL & IMRAY,
28, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: щотой лог the separation of vestern Fate пош сопшегота
Wool Fats and from the Lyes of Wool-washing Works.
We, HUGO WALDEMAR LANGBECK and RUDOLF EDUARD RITSERT, both of
No. 127 Leman Street in the City of London, Chemists 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 :-
Our invention is based on the discovery that the true cholesterin fats (ethers of
cholesterin and isocholesterin with fatty acids) are with difficulty soluble in alcohol,
while all the other substances contained in the raw wool fat, such as free fatty acids,
free cholesterin and free isocholesterin as well as the volatile ethers of the fatty acids,
are readily soluble in alcohol when heated.
In carrying out our invention we treat the raw wool fat freed from water and dirt,
repeatedly with boiling alcohol containing about 10 per cent of ether, and we separate
the resulting warm alcoholic solution of the free fatty acids, free cholesterin and
isocholesterin and volatile ethers of the fatty acids, containing also a small quantity of
cholesterin fats, from the undissolved cholesterin fats.
The separated cholesterin fats are then heated by means of steam to drive off the
traces of alcohol or methylated alcohol, if this has been used.
According to another modification of the process, we dissolve the whole of the
commercial wool fat in ether, and from this solution we precipitate the cholesterin fats
by the addition of alcohol.
The cholesterin fats thus obtained are free from fatty acids and their volatile ethers,
as also from free cholesterin and free isocholesterin. This purified product containing
about 20 per cent of water, we term "cholesterinol."
Instead of using commercial wool fat, our above described invention can be applied
to the lyes obtained from wool-washing works, in this case the said lyes are
decomposed by means of suitable acids, in the well known manner and the resulting
compound of wool fat and fatty acids is then treated according to either of the above
described processes.
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 :-
1. The production of Cholesterin Fats from commercial wool fats or wool fats
extracted from lyes of wool-washing works by first treating the wool fat with alcohol,
and then separating the undissolved cholesterin fats from the solution of free fatty
acids, free cholesterin and isocholesterin and volatile ethers of the fatty acids thus
obtained substantially as herein described.
2. The production of cholesterin fats from commercial wool fats or woolfats extracted
from lyes of wool-washing works by first dissolving the whole of the wool fat in ether
and then precipitating the cholesterin fats from such solution by the addition of alcohol
substantially as herein described.
ABEL & IDIRAY,
Agents for the Applicants.