A New or Improved Process of Manufacture of Petroleum Soap.
Year: 1895

page_text: Date of Application, 7th Oct., 1895
Complete Specification Left, 1st July, 1898-Accepted, 26th Sept.. 1895
PROVISIONAL SPECIFICATION.
A New or Improved Process of Manufacture of Petroleum Soap.
I, SIEGISMUND EDLER TON GRAEVE, of No. 65, Adlerstrasse, Düsseldorf, in
the German Empire, Analytical Chemist, do hereby declare the nature of this
invention to be as follows:-
In carrying out the improved process which forms the subject of this invention,
fat or a fatty substance of any suitable kind-with or without an addition of rosin,
according to the nature of the said fatty substance-is heated to 100° Centigrade;
and, at the same time, nitric acid, or any other acid equally fit to accomplish the
desired object, 18 also heated to 100° Centigrade. The acid is then added to the
fat, the mixture being stirred the while, and the addition of acid being continued
until the violent reaction, the bubbling or formation of froth, and the evolution of
nitrous acid and other volatile organic acids cease. The fat, after having undergone
this preparatory treatment, is dissolved in a suitable predotermined quantity of,
petroleum, the solution being at the same time moderately heated. Then caustic
alkalies or carbonates of alkalies are added thereto; and, whilst the mixture (which
may, or may not, be further beated) is being continually stirred, saponification
takes place, there forming a semi-liquid mas-. According to the nature of the
fatty substance employed, a small quantity of ammonia may, or may not, be next
added to the mass, while it is still warm; after which it is again stiriel in a
continuous manner until it is cooled. The whole of the fat and petroleum will thus
have been converted into soap. And a certam percentage of petroleum soap thus
produced will prove a useful addition to ordinary soap.
Dated the 7th day of October 1805
FAIRFAX & WETTER,
433 Strand, London, Agents for the Applicant.
A New or Improved Process of Manufacture of Petroleum Soap.
I, SIEGISMUND EDLER VON GRAEVE, of No. 65, Adlerstrasso, Dusseldorf, iu
the German Empire, Analytical Chemist, do hereby declare the naturo 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 :-
In carrying out the improved process which forms the subject of this invention,
I take fat or any suitable fatty matter, with or without the addition of carnauba-
wax or other wax, according to the nature of tho said fatty substance, which
materials may or may not be heated up to 100° Ceutigrade after the mixture of
the fatty substance with wax; and nitric acid, or other suitable acid, which
likewise may or may not be heated up to 100° Centigrade. The acid is gradually
added to the fat, while constantly stirring, and the admixture of acid is increased
until the violent reaction, the bubbling or formation of froth, and the evolution of
nitrous acid and other volatile organic acids cease. The fat, after having undergone
this preparatory treatment, is dissolved in a suitable predetermined quantity of
PRA)

page_text: petroleum, the solution being at the same time moderately heated. Then caustic
soda or potash or carbonates of said alkalies are added thereto, and, whilst the
mixture (which may or may not be further heated) is being continually stirred,
saponification takes place and causes the mass to thicken. According to the
nature of the fatty matter employed, a small quantity of ammonia may or may not
be next added to tho mass, while it is still warm; after which it is allowed to cool,
while being constantly stiried. The whole of the fat and petroleum will thus have
been converted into soap. A certain percentage of petroleum soap thus produced
will prove a useful addition to ordinary soap. The addition of wax as mentioned
above takes place, if the mass would be too soft or not sufficiently viscous without
such addition. The application of heat is necessary, if solid fats are used.
The proportions vary according to the nature of the raw materials employed, na
will be easily understood. The following is a good example.-
Nitric acid
Carnauba wax
50 parts
20 parts
Petroleum
-
-
100 parts
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 :
1. The process for the manufacture of petroleum soap, which consists in gradually
mixing fat with nitric acid, dissolving the product in petroleum with the aid of
heat, and adding caustic alkali or alkali-carbonate to produce saponification,
substantially as described.
2. The manufacture of petroleum soap by treating a mixture of fatty matter and
wax with nitric acid, dissolving the product in petroleum, and saponifying with or
without the aid of ammonia, substantially as described.
Dated this 30th day of June 1896.
FAIRFAX & WETTER,
433, Strand, London, Agents.