Improvements in and relating to the Solidification of Liquid Mineral Oils.
Year: 1899

page_text: Date of Application, 1st Dec., 1899
Complete Specification Left, 31st Aug., 1900-Accepted, 1st Dec., 1900
PROVISIONAL SPECIFICATION.
Improvements in and relating to the Solidification of Liquid Mineral
Oils.
We, HEINRICH BERNHARD HELBING and FRANCIS WILLIAM PASSMORE, both of
63, Queen Victoria Street, in the City of London, Consulting Chemists, do
hereby declare the nature of this invention to be as follows:-
The present invention relates to improvements in the solidification of liquid
petroleum oil, paraffin and the like.
For many purposes the conversion of the liquid portion of petroleum oils
into a solid mass is a most desirable object, and has hitherto been effected by
the addition of absorbent materials like sawdust, or by the incorporation with
the oil of solid substances such as resin or soap, or by a combination of both
methods. In all these cases a relatively large quantity of material must be
added to produce the desired effect, and this renders the product useless or too
costly for many purposes to which a solidified petroleum could otherwise be put.
According to our invention we convert liquid petroleum into a solid mass
by mixing it with a concentrated aqueous solution of a salt of casein, prefer-
ably the sodium salt, with the addition of formic aldehyde, the effect of the
formic aldehyde being to render the solidified petroleum harder.
The amount of casein salt which it is necessary to add to effect the transfor-
mation is relatively very small, and consequently the product can be put to uses
to which so called "solidified" petroleum as hitherto made could not be applied.
Dated this 1st day of December 1899.
J. C. MEWBURN & ELLIS,
55 and 56, Chancery Lane, London,
Chartered Patent Agents.
5 Improvements in and relating to the Solidification of Liquid Mineral
Oils.
We, HEINRICH BERNHARD HELBING and FRANCIS WILLIAM PASSMORE, both of
63, Queen Victoria Street, in the City of London, Consulting Chemists, do
hereby declare the nature of this invention and in what manner the same is to
Dic 017

page_text: The performed, to be particularly described and ascertained in and by the
following statement:-
The present invention relates to improvements in the solidification of liquid
petroleum oil, paraffin and the like.
For many purposes the conversion of the liquid portion of petroleum oils
into a solid mass is a most desirable object, and has hitherto been effected by
the addition of absorbent materials like saw-dust, or by the incorporation with
the oil of solid substances such as resin or soap, or by a combination of both
methods. In all these cases a relatively large quantity of material must be
added to produce the desired effect, and this renders the product useless or too
costly for many purposes to which a solidified petroleum could otherwise be put.
According to our invention we convert liquid petroleum into a solid mass
by mixing it with a concentrated aqueous solution of a salt of casein, prefer-
ably the sodium salt, with the addition of formic aldehyde, the effect of the
formic aldehyde being to render the solidified petroleum harder.
The amount of casein salt which it is necessary to add to effect the transfor-
mation is relatively very small, and consequently the product can be put to uses
to which so called "solidified" petroleum as hitherto made.could not be applied.
It will be understood that we do not limit ourselves to any particular propor-
tions of ingredients.
By way of example we may add to 20 parts of casein 100 parts of decinormal
caustic soda solution or a sufficiency to obtain a substantially neutral solution
thereof, applying heat cautiously for dissolving.
To the stiff gelatinous solution is added at first drop by drop and subsequently
more rapidly with constant stirring in an emulsion mortar or by suitable
mechanical means 1000 parts of petroleum. To every 1000 parts of the freshly
made emulsion there is then added 10 parts of ordinary commercial 40 per cent.
formaldehyde solution, care being taken that the formaldehyde is added rapidly
and uniformly incorporated. The product thus treated with formaldehyde is at
once poured into moulds and left to harden.
As above mentioned the relative proportion of the ingredients may vary accord-
ing to the particular kind of product which it is desired to obtain, or according to
the variety of oil employed.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
1. The process for the manufacture of solidified petroleum or mineral oils
which consists in preparing an emulsion of the said oils with a solution of a
casein salt, preferably a soldium salt, and hardening by means of formaldehyde,
substantially as described.
2. As a new product liquid petroleum or mineral oil solidified by means of
casein and formaldehyde.
1
8041 1
e
1000
J. C. MEWBURN & ELLIS,
55 and 56, Chancery Lane, London,
Chartered Patent Agents.