Improvements in the Treatment of Fatty Matters for Deodorizing and Decolorizing the same.
Year: 1898

page_text: Date of Application, 1st July, 1898
Complete Specification Left, 29th Mar., 1899-Accepted, 24th June, 1899
PROVISIONAL SPECIFICATION.
Improvements in the Treatment of Fatty Matters for Deodorizing
and Decolorizing the same.
I, EMILE ANDREOLI, of 147, Cold Harbour Lane, Camberwell, in the County of
London, Journalist, do hereby declare the nature of this invention to be as
follows;-
This invention relates to the treatment of fatty matters by means of ozone (03)
to remove their smell and to improve their color, appearance and quality.
According to my invention the matter to be treated is mixed with warm water
and then ozone is passed through the mass until, the desired results are obtained.
In most cases and especially when dealing with oils or fats which are rebellious
I subject them to preliminary treatment by means of chemicals (such for instance
as hypochlorite of magnesium) with which they are agitated in warm water.
and then if necessary draw off the water and again subject them to chemical
treatment by hypochlorites or turpentine or terebene. Ozone is then blown or
aspirated through the liquid mass in such a manner that the fat is thoroughly
broken up. When the proper quantity of such solution has been mixed with
the fat and the water, and the ozone has been in sufficiently intimate contact with
the finely divided molecules of fat in the warm aqueous solution of hypochlorite,
turpentine, terebene or the like the color becomes paler and the unpleasant smell
disappears.
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G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
QUALL D7171 17
Improvements in the Treatment of Fatty Matters for Deodorizing
and Decolorizing the same.
EMILE ANDREOLI, Journalist, The Acacias, 147, Cold Harbour Lane,
London, S.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:
-
This invention relates to the treatment of fatty matters by means of ozone in
combination with an hypochlorite solution to remove their smell, and to improve
their colour, appearance, and quality.
The organic colouring matters are so predominant in dark or brown fats, that
it would take an enormous quantity of ozone to oxidise and to eliminate them.
Ozone by itself is not a powerful bleaching agent, but when combined with
some chemicals, such as an hypochlorite solution, it bleaches better than the
hypochlorite alone, and, if the process is properly worked, there is no trace of
the smell of the fat, or of the chemical. have ascertained, by experience, that
the fats which are treated by hypochlorites only, even if a greater proportion of

page_text: the bleaching liquor is used, are not so well and so rapidly bleached and dis-
infected as when the hypochlorite solution is combined with ozone.
I have described in my Specification 14569, 1st July 1898, how fatty matters
are rendered paler, and disinfected, by a treatment in an hypochlorite solution.
But the bleaching and disinfecting by hypochlorite only are never so complete
as if they were effected by hypochlorite in combination with ozone, when the
decolorization is more satisfactory, and all smell disappears entirely.
Several theories have been developed to explain how the ozone acts and assists
the disinfection and the decolorization of different substances when combined
with an hypochlorite. This question, however, is not solved yet, but the fact
is undeniable.
Practically, this treatment of fatty matters by ozone and an hypochlorite
solution, takes place in the same manner as the one by hypochlorite only, which.
is described in my Specification 14569, 1 July 1898.
A point of great importance is that the ozone must be agitated with the fats
and the hypochlorite in such a manner, that the mass is in a perfect state of
division, but that there is no violent motion, and, it must be remembered, that
by forcing too rapidly the ozonised air, through the liquid, there would be a
loss of non-absorbed ozone.
Ozone can be applied at once i.e. at the same time as hypochlorite is added to
the fat, but it is preferable to act first on the fat by hypochlorite, and when the
bleach is exhausted, to add some more fresh bleaching solution, and to pass ozone
simultaneously.
Strong solution of hypochlorite can be added in the beginning to the melted
fats, in order to attack the colouring matters, but I find it more advantageous
to employ a weaker solution, representing 3, or 25 grammes of chlorine per litre.
To a ton of fat, for instance, I add gradually, so that the fat is not cooled, 1 ton
of hot hypochlorite, the chlorometric degree of which is about 2.71 grammes of
chlorine per litre. Ozone is forced into the fatty mass, which is kept in a state
of agitation by means of stirrers, its molecules being in intimate contact with
the bleaching liquor, and with the ozone.
As soon as the hypochlorite is exhausted, which can be ascertained by means
of a starch and iodide of potassium solution, the operation is stoppel, and in a
very short time. the fat separates from the aqueous solution, which, through an
aperture in the lower part of the tank, is run off.
According to the degree of decolorization which has been effected. half a ton,
or one ton more of hypochlorite is added, and ozonised air is forced, as before,
through the mass, and so on, until the desired results are obtained.
The ozonised air is produced in apparatus similar to those which I have de-
scribed in my Specification 15813/1897.
An ozone installation consists of an alternate current dynamo, of a transformer.
and of one or more ozonisers, which are disposed in a strong chamber made of
iron, or other convenient material connected on one side by means of a pipe with
a blower, or compressor of air, and on the other side, with the tank in which,
by means of a perforated coil or pipe at the bottom of the recipient, the ozone
is forced through the mass of fat and water which is kept agitated by stirrers.
The ozone installation may vary according to circumstances, and the ozonised
air, instead of being blown, can be aspirated through the fat and the bleaching
solution.
Having now particularly described and ascertained the nature of my invention
and in what manner the same is to be performed, I declare that what I claim is:
The disinfecting and bleaching treatment of fatty matters by ozonised air in
combination with an hypochlorite solution, substantially as described.
0011
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