Method of Producing Chemically Pure Carbon.
Year: 1894

page_text: Date of Application, 28th Dec., 1894
Complete Specification Left, 26th Sept., 1895-Accepted, 26th Oct., 1895
PROVISIONAL SPECIFICATION.
Method of Producing Chemically Pure Carbon.
1, AUGUST SCHMOLE, of Iserlohn, in the Province of Westphalia, Geiman
Empire, Manufacturer do hereby declare the nature of this invention to be as
follows:-
This invention relates to a method of producing chemically pure carbon, and
is characterised by letting carbonic acid or other combinations of carbon be
acted on, or decomposed, by the vapours of suitable evaporating metals or
metalloids. There is a strong affinity between such vapours and oxygen, especially
if said vapours are put under strong pressure; combinations of carbon and oxygen
will, therefore, be readily reduced, and the carbon caused to separate.
The pressure requisite for gaming the greatest yield possible is dependent ou
the sort of metal or metalloid employed in the process. There may be used a
variety of substances, but I prefer to use either silicon, or magnesium, or both
these substances together Especially in this latter case, the affinity between
the respective vapours and oxygen is very great, and the action, consequently, a
very energetic one. If employing silicon as well as magnesium, there is formed
silicate of magnesia, the action of which is, so to speak, an involved one
In cautying my method into effect, I subject the respective metal or metalloid,
or metal and metalloid (for instance silicon and magnesia), to the action of an
electric curront of suitable strength, until vapours are evolved by the respective
substance or substances employed. I prefer to effect that evaporation within a
closed vessel consisting of steel or wrought-iron, after the au has been removed
out of said vessel, I connect the latter with another vessel containing liquid
carbonic acid, so that the said former vessel becomes filled with carbonic acid
gas of very strong tension, say 100 atmospheres Said carbonic aoid gas is now
decomposed by the vapours of the evaporating metal or metalloid, so that carbon
is separated.
In order to precipitate said carbon, I prefer to arrange within the first vessel
afore described ono or more pipes or other hollow bodies, which are constantly
cooled by water or any other liquid passed through them, the carbon will thus
precipitate upon said pipes or other hollow bodies.
I wish it to be understood, that the construction of the apparatus used for
executing my method may ho widely varied, the construction indicated above i>
given as an example only.
Dated this 28th day of December 1894.
AUGUST SCHMOLE,
By Geo. II. Raynel,
37 Chancery Lane, London, Agent for the Applicant.

page_text: мешой or rrouuстик спешвану rure бaгроц.
1, AUGUST SCHMOLE, of Iserlohn, in the Province of Westphalia, German
Empire, Manufacturer 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 a method of producing chemically pure carbon, and is
characterized by letting carbonic acid or other combinations of catbou be acted on,
or decomposed, by the vapours of suitable evaporating metals, metalloids, alloys,
o combinatious of either of said substances with carbon There is a strong
afhmity between such vapours and oxygen, especially if said vapours are put under
strong pressure, combinations of carbon and oxygen will, therefore, be readily
reduced and the carbon caused to separate.
The pressure requisite for gaining the greatest yield possible is dependant on
the sort of metal or metalloid employed in the process. There may be used a
variety of substances, but I prefer to use either silicou, or magnesium, or both
these substances together. Especially in this latter case, the affinity between the
respective vapours and oxygen is very great, and the action, consequently, a very
energetic one. If employing silicon as well as magnesium there is formed silicate
of magnesia, the action of which is, so to say, au involved one.
In carrying my method into effect, I subject the respective metal or metalloid,
o metal and metalloid (for instance silicon and magnesia) to the action of an
electric current of suitable strength, until vapours are evolved by the respective
substance of substances employed. I prefer to effect that evaporation within a
closed vessel consisting of steel or wrought-iron, after the air has been removed
out of said vessel, I conuect the latter with another vessel containing liquid
carbonic acid, so that the said former vessel becomes filled with carbonic acid gas
of very great tension, say 100 atmospheres. Said carbonic acid gas is now
decomposed by the vapours of the evaporating metal or metalloid, so that carbou
18 separated.
In order to precipitate said carbon, I prefer to arrange within the first vessel
afoie described one or more pipes or other hollow bodies, which are constantly
cooled by water or any other liquid passed through them, the carbon will thus
precipitate upon said pipes or other hollow bodies
I wish it to be understood, that the construction of the apparatus used for
executing my method may be widely varied, the construction indicated above is
given as an example only."
Having now particularly described and ascertained the nature of my said inven-
tion, and in what maunci the same is to be performed, I declare that what I
claim 15:
1 The method of producing chemically pure carbon, consisting in letting a
chemical body or bodies containing carbon, and another chemical body or bodies
having a component or components adapted to combine with the other component
oi components of said first mentioned chemical body or bodies mutually act upou
each other whilst being exposed to strong pressure and a suitable source of heat,
substantially as described.
2. The method of producing chemically pure carbon, consisting in letting a
chemical body or bodies containing carbon and oxygen, and another chemical
body or bodies having a component or components adapted to reduce said first
mentioned chemical body or bodies to carbon mutually act upon each other whilst
being exposed to strong pressure, and a suitable source of heat, substantially as
described.

page_text: 3. The method of producing chemically pure carbon, consisting in letting a
combination of carbon and oxygen, and a chemical body or bodies having a
component or components adapted to combine with said oxygen mutually act
upon each other whilst being exposed to strong pressure, and a suitable source
of heat, substantially as described.
4. The method of producing chemically pure carbon, consisting in letting a
chemical body or bodies containing carbon, and silicon or magnesium, or silicon
and maguesmin, or a combination or alloy of either or both of said substances
mutually act upon each other whilst being exposed to strong pressure, and a
suitable source of heat, substantially as described.
5. The method of producing chemically pure carbon, consisting in turning a
chemical body or bodies containing carbon, and silicon or magnesium, or silicon
and magnesium, or a combination or alloy of either or both of said substances
into gases or vapours, and letting them mutually act upon each other whilst
being exposed to strong prossure, and a suitable source of heat, substantially as
described.
6. The method of producing chemically pure carbon, consisting in letting
carbonic acid gas of high tension, and vapours of silicon or magnesium, or of
silicon and magnesium act upon each other, said vapours beng produced by
electricity, and a suitable source of heat, substantially as described.
Dated this 25th day of September 1895.
AUGUST SCHMOLE,
By Geo. H. Rayner,
37 Chancery Lane, London, Agent for the Applicant.