Method of Rendering Petroleum Less Explosive and improving its Illuminating Power.
Year: 1889

page_text: Date of Application, 25th Apr., 1889
Complete Specification Left, 25th Jan., 1890-Accepted, 1st Mar., 1890
PROVISIONAL SPECIFICATION.
Method of Rendering Petroleum Less Explosive and improving its
Illuminating Power.
I, JOHANN NICOLAUS FLESCH, of Trier, in the Kingdom of Prussia, Empire of
Germany, Gentleman, do hereby declare the nature of this invention to be as
follows:-
My invention relates to a method of rendering petroleum less explosive and
increasing its illuminating power and the manner in which I carry my invention into
effect is shewn by the following statement.
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According to my invention I mix "saline deposit." also termed "waste salt" or
"Carnallite (called in German "Abraumsalz") with petroleum, heat it, and thus
eliminate by distillation all or a portion of the benzoline it contains, the following
being an analysis of an average sample of the said saline deposit (Abraumsalz)
The chemical substances contained in saline deposit (waste salt) act upon the
petroleum rendering it less explosive and improving its illuminating power.
I find that the flashing point of petroleum thus treated lies near the boiling
temperature of water, and as, for ordinary purposes, such exceptionally high flashing
point is not called for, I sometimes add a quantity of ordinary treated petroleum,
merely heating the two together, in which manner petroleum is obtained the flashing
point of which is much higher than before treatment, yet not so high as that of the
quantity originally treated.
Sometimes I also re-add afterwards the benzoline first eliminated by distillation.
T
A .:1 1000
COMPLETE SPECIFICATION.
Method of Rendering Petroleum Less Explosive and Improving its
Illuminating Power.
I, JOHANN NICOLAUS FLESCH of Trier, in the Kingdom of Prussia, Empire of
Germany Gentleman, 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 :-
My invention relates to a method of rendering Petroleum less explosive and
increasing its illuminating power and the manner in which I prefer to carry my
invention into effect is as follows.
According to my invention I take a suitable quantity, say 200 gallon of petroleum,

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mix it with about 5 hundredweight of "saline deposit" also termed "waste salt or
Carnallite"
"(called in German "Abraumsalz" an average analysis of which I
have given in my provisional specification. The mixture of " Carnallite" and
petroleum I place in a suitable petroleum distilling apparatus and under a heat of
about 150 degrees Reaumur I distil off about one fourth, or say about 50 gallon of the
petroleum. Such distillate will contain most of the explosive compounds-(gasoline,
benzoline etcetera) of the original petroleum bulk.
The non-distilled petroleum, that is to say about three fourths of the original bulk,
or 150 gallons, having been relieved of all or nearly all explosive, compounds does
not easily catch fire, even when heated to the boiling point of water or 80° Reaumur,
and the action of the "Carnallite" will have considerably increased its light effect.
It being not necessary however, to have a petroleum with such high flashing
point as 80° Reaumur and 1 therefore add double as much petroleum, or 300 gallons
to the 150 gallons remaining in the distilling apparatus, and I heat it all together up
to about 80° Reaumur for one hour, when I have 450 gallons of petroleum, the
flashing point of which I find to be about 60° Reaumur.
I now re-add the 50 gallons of distillate, resulting from the first process and heat
the entire bulk, or 500 gallons for about 1 hours, up to a temperature of about
60° Reaumur, and then the treatment is finished.
I do not bind myself to the particular proceedings described, for although I have
found the method set forth to be the best yet fair results may also be obtained by
merely heating the Petroleum with Carnallite.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
The method of treating Petroleum consisting essentially in mixing it with
Carnallite and heating it, substantially in the manner as and for the purpose
described.
London, 25th January 1890.
JOHANN NICOLAUS FLESCH.
Per C. R. Bonne & Co.,
41, Eastcheap, his Agents.